Changeset 3762759

Timestamp:

10/24/2026 05:26:32 AM (2 hours ago)

Author:

bytecorestack

Message:

Release 1.3.0: redesigned admin, full email viewer, multi-channel alerts, always-on health checks

• New Overview, Connection, Alerts, Reports and Email log screens; responsive dark admin with bundled fonts
• Provider presets with one-minute setup and test email beside the connection form
• Email log keeps 90 days with body, headers and attachment names; open any email on its own page
• Alerts to Slack, Teams, Google Chat, Discord and a custom webhook at once; one alert per outage
• Health checks every 15 minutes, including a sender check
• Monthly report on the 1st of each month; redesigned report and test emails
• Fixes: SMTP password survives salt rotation, honest health status, early translation notice, CSV formula injection, multisite uninstall
• Removed bundled Chart.js, the Settings tab and resend
• Assets: new screenshots 1-6, old screenshots 7-9 removed

Location:

bcs-smtp-manager

Files:

• assets/screenshot-1.png (modified) (1 prop) ( previous)
• assets/screenshot-2.png (modified) (1 prop) ( previous)
• assets/screenshot-3.png (modified) (1 prop) ( previous)
• assets/screenshot-4.png (modified) (1 prop) ( previous)
• assets/screenshot-5.png (modified) (1 prop) ( previous)
• assets/screenshot-6.png (modified) (1 prop) ( previous)
• assets/screenshot-7.png (deleted)
• assets/screenshot-8.png (deleted)
• assets/screenshot-9.png (deleted)
• tags/1.3.0 (copied) (copied from bcs-smtp-manager/trunk )
• tags/1.3.0/admin/class-bcs-smtp-admin.php (modified) (30 diffs)
• tags/1.3.0/assets/css/admin.css (modified) (1 diff)
• tags/1.3.0/assets/fonts (added)
• tags/1.3.0/assets/fonts/OFL-GeistMono.txt (added)
• tags/1.3.0/assets/fonts/OFL-Outfit.txt (added)
• tags/1.3.0/assets/fonts/geist-mono-variable.woff2 (added)
• tags/1.3.0/assets/fonts/index.php (added)
• tags/1.3.0/assets/fonts/outfit-variable.woff2 (added)
• tags/1.3.0/assets/js/admin.js (modified) (6 diffs)
• tags/1.3.0/assets/js/chart.umd.min.js (deleted)
• tags/1.3.0/bcs-smtp-manager.php (modified) (4 diffs)
• tags/1.3.0/changelog.txt (added)
• tags/1.3.0/includes/class-bcs-smtp-core.php (modified) (3 diffs)
• tags/1.3.0/includes/class-bcs-smtp-db.php (modified) (13 diffs)
• tags/1.3.0/includes/class-bcs-smtp-email-template.php (modified) (3 diffs)
• tags/1.3.0/includes/class-bcs-smtp-mailer.php (modified) (23 diffs)
• tags/1.3.0/includes/class-bcs-smtp-monitor.php (modified) (14 diffs)
• tags/1.3.0/includes/class-bcs-smtp-wp-cli.php (modified) (3 diffs)
• tags/1.3.0/readme.txt (modified) (2 diffs)
• tags/1.3.0/uninstall.php (modified) (2 diffs)
• trunk/admin/class-bcs-smtp-admin.php (modified) (30 diffs)
• trunk/assets/css/admin.css (modified) (1 diff)
• trunk/assets/fonts (added)
• trunk/assets/fonts/OFL-GeistMono.txt (added)
• trunk/assets/fonts/OFL-Outfit.txt (added)
• trunk/assets/fonts/geist-mono-variable.woff2 (added)
• trunk/assets/fonts/index.php (added)
• trunk/assets/fonts/outfit-variable.woff2 (added)
• trunk/assets/js/admin.js (modified) (6 diffs)
• trunk/assets/js/chart.umd.min.js (deleted)
• trunk/bcs-smtp-manager.php (modified) (4 diffs)
• trunk/changelog.txt (added)
• trunk/includes/class-bcs-smtp-core.php (modified) (3 diffs)
• trunk/includes/class-bcs-smtp-db.php (modified) (13 diffs)
• trunk/includes/class-bcs-smtp-email-template.php (modified) (3 diffs)
• trunk/includes/class-bcs-smtp-mailer.php (modified) (23 diffs)
• trunk/includes/class-bcs-smtp-monitor.php (modified) (14 diffs)
• trunk/includes/class-bcs-smtp-wp-cli.php (modified) (3 diffs)
• trunk/readme.txt (modified) (2 diffs)
• trunk/uninstall.php (modified) (2 diffs)

bcs-smtp-manager/tags/1.3.0/admin/class-bcs-smtp-admin.php

@@ -146 +146 @@
                 wp_enqueue_style(  'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/css/admin.css', array(), BCS_SMTP_VERSION );
 
-                wp_enqueue_script( 'chartjs', BCS_SMTP_PLUGIN_URL . 'assets/js/chart.umd.min.js', array(), '4.4.0', true );
-                wp_enqueue_script( 'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery', 'chartjs' ), BCS_SMTP_VERSION, true );
+                wp_enqueue_script( 'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery' ), BCS_SMTP_VERSION, true );
 
                 wp_localize_script( 'bcs-smtp-admin', 'bcsSmtpData', array(
@@ -158 +157 @@
                         'smtpAuth'             => (bool) get_option( 'bcs_smtp_auth', true ),
                         'smtpEncryption'       => get_option( 'bcs_smtp_encryption', 'tls' ),
-                        'monitorEnabled'       => (bool) get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false ),
                         'alertChannelEnabled'  => (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false ),
-                        'alertChannel'         => get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' ),
                         'passwordIsSet'        => ! empty( get_option( 'bcs_smtp_password', '' ) ),
+                        'firstRun'             => '' === trim( (string) get_option( 'bcs_smtp_host', '' ) ),
+                        'i18n'                 => array(
+                                'chReady'         => __( 'Active', 'bcs-smtp-manager' ),
+                                'chAddUrl'        => __( 'Needs URL', 'bcs-smtp-manager' ),
+                                'chOff'           => __( 'Off', 'bcs-smtp-manager' ),
+                                /* translators: 1: channels switched on, 2: all channels. */
+                                'chCount'         => __( '%1$s of %2$s on', 'bcs-smtp-manager' ),
+                                'chCheckUrl'      => __( 'Check URL', 'bcs-smtp-manager' ),
+                                'urlHttps'        => __( 'Paste the full address, starting with https://', 'bcs-smtp-manager' ),
+                                /* translators: %s: alert channel name, e.g. Slack. */
+                                'urlHost'         => __( 'This doesn’t look like a %s webhook URL.', 'bcs-smtp-manager' ),
+                                'urlPublic'       => __( 'Use a public https:// address, not localhost or an IP address.', 'bcs-smtp-manager' ),
+                                'saveFirst'       => __( 'Save your changes first. The test uses your saved settings.', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of alert channels. */
+                                'nChannels'       => __( '%s channels', 'bcs-smtp-manager' ),
+                                'saving'          => __( 'Saving…', 'bcs-smtp-manager' ),
+                                'savingTesting'   => __( 'Saving and testing…', 'bcs-smtp-manager' ),
+                                'sending'         => __( 'Sending…', 'bcs-smtp-manager' ),
+                                'checking'        => __( 'Checking…', 'bcs-smtp-manager' ),
+                                'saved'           => __( 'Saved.', 'bcs-smtp-manager' ),
+                                'saveFailed'      => __( 'Couldn’t save. Please try again.', 'bcs-smtp-manager' ),
+                                'requestFailed'   => __( 'The request didn’t reach WordPress. Check your connection and try again.', 'bcs-smtp-manager' ),
+                                /* translators: %s: HTTP status code. */
+                                'requestFailedCode' => __( 'WordPress returned an error (HTTP %s). Check the server error log or turn on WP_DEBUG.', 'bcs-smtp-manager' ),
+                                'connFailed'      => __( 'Connection failed:', 'bcs-smtp-manager' ),
+                                'enterRecipient'  => __( 'Enter an email address to send the test to.', 'bcs-smtp-manager' ),
+                                'testFailed'      => __( 'The test email wasn’t sent.', 'bcs-smtp-manager' ),
+                                'checkFailed'     => __( 'The health check couldn’t run.', 'bcs-smtp-manager' ),
+                                'resent'          => __( 'Resent', 'bcs-smtp-manager' ),
+                                'pwSaved'         => __( 'Saved and encrypted.', 'bcs-smtp-manager' ),
+                                'pwChanging'      => __( 'Enter the new password. Leave it empty to keep the saved one.', 'bcs-smtp-manager' ),
+                                'showPw'          => __( 'Show password', 'bcs-smtp-manager' ),
+                                'hidePw'          => __( 'Hide password', 'bcs-smtp-manager' ),
+                                'copy'            => __( 'Copy', 'bcs-smtp-manager' ),
+                                'copied'          => __( 'Copied', 'bcs-smtp-manager' ),
+                                'loadError'       => __( 'The email log couldn’t be loaded. Reload the page to try again.', 'bcs-smtp-manager' ),
+                                /* translators: 1: current page, 2: total pages, 3: number of emails. */
+                                'pageInfo'        => __( 'Page %1$s of %2$s · %3$s emails', 'bcs-smtp-manager' ),
+                                'pickServer'      => __( 'Filled in when you pick a provider', 'bcs-smtp-manager' ),
+                                'sent'            => __( 'Sent', 'bcs-smtp-manager' ),
+                                'failed'          => __( 'Failed', 'bcs-smtp-manager' ),
+                                'unconfirmed'     => __( 'Unconfirmed', 'bcs-smtp-manager' ),
+                                /* translators: %s: date the week starts, e.g. "Oct 1". */
+                                'weekOf'          => __( 'Week of %s', 'bcs-smtp-manager' ),
+                                /* translators: %s: date the two-week period starts, e.g. "Oct 1". */
+                                'twoWeeksOf'      => __( '2 weeks from %s', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of emails. */
+                                'emailsCount'     => __( '%s emails', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of days in the period. */
+                                'ofDays'          => __( 'of %s days', 'bcs-smtp-manager' ),
+                                /* translators: %s: period length, e.g. "30 days". */
+                                'lastPeriod'      => __( 'Last %s', 'bcs-smtp-manager' ),
+                                'lessThanOne'     => __( 'Less than 1', 'bcs-smtp-manager' ),
+                                /* translators: %s: the entries that are not valid email addresses. */
+                                'badEmails'       => __( 'These aren’t valid email addresses: %s', 'bcs-smtp-manager' ),
+                                'needEmail'       => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ),
+                                /* translators: %s: email address. */
+                                'removeEmail'     => __( 'Remove %s', 'bcs-smtp-manager' ),
+                                'notAnEmail'      => __( 'Not a valid email address', 'bcs-smtp-manager' ),
+                                'oneRecipient'    => _x( 'person', 'count label: 1 person', 'bcs-smtp-manager' ),
+                                'manyRecipients'  => _x( 'people', 'count label: 2 or more people', 'bcs-smtp-manager' ),
+                                'oneDay'          => _x( 'day', 'streak length: 1 day', 'bcs-smtp-manager' ),
+                                'manyDays'        => _x( 'days', 'streak length: 2 or more days', 'bcs-smtp-manager' ),
+                                /* translators: %s: email provider name, e.g. Microsoft 365 / Outlook. */
+                                'needsAuth'       => __( '%s needs a username and password.', 'bcs-smtp-manager' ),
+                        ),
                 ) );
         }
@@ -226 +289 @@
                 update_option( 'bcs_smtp_username',   $username );
 
+                // Keep the "Other SMTP server" details on their own, so switching to a preset provider
+                // and saving doesn't lose them — choosing "Other" again brings them back.
+                $provider = isset( $_POST['provider'] ) ? sanitize_key( wp_unslash( $_POST['provider'] ) ) : '';
+                if ( 'other' === $provider && '' !== $host ) {
+                        update_option( 'bcs_smtp_custom_server', array( 'host' => $host, 'port' => $port, 'encryption' => $encryption ), false );
+                }
+
                 // Only overwrite the stored password if the user submitted a non-empty value.
                 // Encrypted at rest — see BCS_SMTP_Mailer::encrypt_password()/get_smtp_password().
@@ -241 +311 @@
                                 update_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
                         }
+                        // This test counts as a check, so the next scheduled one is counted from it.
+                        $this->monitor->schedule_next_check();
                 }
 
@@ -254 +326 @@
                                         /* translators: 1: SMTP host, 2: SMTP port. */
                                         ? sprintf( __( 'Connection test passed — SMTP server is reachable on %1$s:%2$s.', 'bcs-smtp-manager' ), esc_html( $host ), esc_html( (string) $port ) )
-                                        : ( isset( $test_result['error_msg'] ) ? $test_result['error_msg'] : __( 'Connection test failed.', 'bcs-smtp-manager' ) ),
+                                        : ( isset( $test_result['error_msg'] ) ? esc_html( $test_result['error_msg'] ) : __( 'Connection test failed.', 'bcs-smtp-manager' ) ),
                         );
                 }
@@ -271 +343 @@
                 check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
                 if ( ! current_user_can( 'manage_options' ) ) { ob_end_clean(); wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-                if ( $this->is_rate_limited( 'send_test', 60 ) ) { ob_end_clean(); wp_send_json_error( __( 'Please wait 60 seconds before sending another test email.', 'bcs-smtp-manager' ) ); }
 
                 $to = isset( $_POST['to'] ) ? sanitize_email( wp_unslash( $_POST['to'] ) ) : '';
@@ -278 +349 @@
                         wp_send_json_error( __( 'Invalid recipient email address.', 'bcs-smtp-manager' ) );
                 }
+                if ( $this->is_rate_limited( 'send_test', 15 ) ) { ob_end_clean(); wp_send_json_error( __( 'Please wait 15 seconds before sending another test email.', 'bcs-smtp-manager' ) ); }
 
                 $result = $this->mailer->send_test_email( $to );
@@ -296 +368 @@
                                         $hint = ' ' . __( 'SMTP is configured but PHPMailer is still using PHP mail(). Try deactivating and reactivating this plugin, or check if another email plugin is overriding the settings.', 'bcs-smtp-manager' );
                                 } else {
-                                        $hint = ' ' . __( 'Configure and enable SMTP in the Settings tab — PHP mail() is not available on this server.', 'bcs-smtp-manager' );
+                                        $hint = ' ' . __( 'Set up and enable SMTP on the Connection tab — PHP mail() is not available on this server.', 'bcs-smtp-manager' );
                                 }
                         } elseif ( 'not_configured' === $result['failure_type'] ) {
-                                $hint = ' ' . __( 'Go to Settings, enter your SMTP details, and save before sending a test.', 'bcs-smtp-manager' );
+                                $hint = ' ' . __( 'Enter your server details on the Connection tab and save before sending a test.', 'bcs-smtp-manager' );
                         }
                         wp_send_json_error( array(
-                                'message'      => $result['error_msg'] . $hint,
+                                'message'      => esc_html( $result['error_msg'] ) . $hint,
                                 'failure_type' => $type,
                         ) );
@@ -317 +389 @@
                 if ( $this->is_rate_limited( 'check_now', 30 ) ) { wp_send_json_error( __( 'Please wait 30 seconds before running another health check.', 'bcs-smtp-manager' ) ); }
 
-                $this->monitor->run_health_check();
-
-                $success  = (bool) get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS );
-                $failures = (int)  get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $result   = $this->monitor->run_health_check( true );
+                $success  = ! empty( $result['success'] );
+                $failures = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+
+                if ( $success ) {
+                        $message = __( 'Health check passed — connected and authenticated with the SMTP server.', 'bcs-smtp-manager' );
+                } else {
+                        /* translators: 1: number of consecutive failures, 2: error detail. */
+                        $message = sprintf( __( 'Health check failed (%1$d consecutive failure(s)): %2$s', 'bcs-smtp-manager' ), $failures, esc_html( isset( $result['error_msg'] ) ? $result['error_msg'] : '' ) );
+                }
 
                 wp_send_json_success( array(
                         'success'  => $success,
                         'failures' => $failures,
-                        'message'  => $success
-                                ? __( 'Health check passed — SMTP connection successful.', 'bcs-smtp-manager' )
-                                /* translators: %d: number of consecutive failures. */
-                                : sprintf( __( 'Health check failed — %d consecutive failure(s).', 'bcs-smtp-manager' ), $failures ),
+                        'message'  => $message,
                 ) );
         }
@@ -334 +409 @@
         /* ─────────────────────────────────────────────────────────────────── */
         /* AJAX — Save monitor settings                                          */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_monitor() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $enabled        = ! empty( $_POST['monitor_enabled'] );
-                $interval       = isset( $_POST['check_interval'] )    ? absint( $_POST['check_interval'] )    : 5;
-                $threshold      = isset( $_POST['failure_threshold'] ) ? absint( $_POST['failure_threshold'] ) : 2;
-                $max_alert      = isset( $_POST['max_alert_count'] )   ? absint( $_POST['max_alert_count'] )   : 0;
-
-                $interval  = max( 1, min( 1440, $interval ) );
-                $threshold = max( 1, min( 10, $threshold ) );
-                $max_alert = min( 100, $max_alert );
-
-                $old_interval = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-
-                update_option( BCS_SMTP_OPT_MONITOR_ENABLED,   $enabled );
-                update_option( BCS_SMTP_OPT_CHECK_INTERVAL,    $interval );
-                update_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, $threshold );
-                update_option( BCS_SMTP_OPT_MAX_ALERT_COUNT,   $max_alert );
-
-                if ( $enabled && $interval !== $old_interval ) {
-                        $next = wp_next_scheduled( 'bcs_smtp_health_check' );
-                        if ( $next ) {
-                                wp_unschedule_event( $next, 'bcs_smtp_health_check' );
-                        }
-                }
-
-                $this->monitor->maybe_schedule_event();
-
-                wp_send_json_success( array( 'message' => __( 'Monitor settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
         /* ─────────────────────────────────────────────────────────────────── */
         /* AJAX — Save alert channel settings                                    */
@@ -377 +418 @@
 
                 $channel_enabled = ! empty( $_POST['alert_channel_enabled'] );
-                $allowed         = array( 'none', 'slack', 'teams', 'google_chat', 'discord', 'custom' );
-                $channel         = isset( $_POST['alert_channel'] ) ? sanitize_key( wp_unslash( $_POST['alert_channel'] ) ) : 'none';
-                $channel         = in_array( $channel, $allowed, true ) ? $channel : 'none';
+                $labels          = BCS_SMTP_Monitor::channel_labels();
+                $posted          = isset( $_POST['alert_channels'] ) ? array_map( 'sanitize_key', (array) wp_unslash( $_POST['alert_channels'] ) ) : array(); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- sanitized by array_map.
+                $channels        = array_values( array_intersect( array_keys( $labels ), $posted ) );
                 $slack_url       = isset( $_POST['slack_webhook_url'] ) ? esc_url_raw( wp_unslash( $_POST['slack_webhook_url'] ) ) : '';
                 $teams_url       = isset( $_POST['teams_webhook_url'] ) ? esc_url_raw( wp_unslash( $_POST['teams_webhook_url'] ) ) : '';
@@ -391 +432 @@
                 }
                 if ( '' !== $teams_url && ! BCS_SMTP_Monitor::is_allowed_webhook_host( $teams_url, 'teams' ) ) {
-                        wp_send_json_error( __( 'Teams webhook URL must be a Microsoft Office/Logic Apps https:// URL.', 'bcs-smtp-manager' ) );
+                        wp_send_json_error( __( 'Teams webhook URL must be a Microsoft Teams Workflows (Power Automate / Logic Apps) or Office 365 connector https:// URL.', 'bcs-smtp-manager' ) );
                 }
                 if ( '' !== $google_chat_url && ! BCS_SMTP_Monitor::is_allowed_webhook_host( $google_chat_url, 'google_chat' ) ) {
@@ -403 +444 @@
                 }
 
+                $channel_urls = array( 'slack' => $slack_url, 'teams' => $teams_url, 'google_chat' => $google_chat_url, 'discord' => $discord_url, 'custom' => $custom_url );
+                if ( $channel_enabled && ! $channels ) {
+                        wp_send_json_error( __( 'Choose at least one place to send alerts.', 'bcs-smtp-manager' ) );
+                }
+                foreach ( $channel_enabled ? $channels : array() as $ch ) {
+                        if ( '' === $channel_urls[ $ch ] ) {
+                                /* translators: %s: alert channel name, e.g. Slack. */
+                                wp_send_json_error( sprintf( __( 'Enter the %s webhook URL.', 'bcs-smtp-manager' ), $labels[ $ch ] ) );
+                        }
+                }
+
                 update_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED,    $channel_enabled );
-                update_option( BCS_SMTP_OPT_ALERT_CHANNEL,            $channel );
+                update_option( BCS_SMTP_OPT_ALERT_CHANNEL,            $channels );
                 update_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        $slack_url );
                 update_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        $teams_url );
@@ -427 +479 @@
                 }
 
-                $channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-                if ( 'none' === $channel ) {
-                        wp_send_json_error( __( 'No alert channel configured.', 'bcs-smtp-manager' ) );
-                }
 
                 $mock_result = array(
@@ -442 +490 @@
                 );
 
-                $this->monitor->send_alert( $mock_result, 2, false );
-                $channel_labels = array( 'slack' => 'Slack', 'teams' => 'Teams', 'google_chat' => 'Google Chat', 'discord' => 'Discord', 'custom' => 'Custom Webhook' );
-                $channel_label  = isset( $channel_labels[ $channel ] ) ? $channel_labels[ $channel ] : ucfirst( $channel );
-                /* translators: %s: alert channel name (e.g. Slack, Teams, Google Chat). */
-                wp_send_json_success( array( 'message' => sprintf( __( 'Test alert dispatched via %s channel.', 'bcs-smtp-manager' ), $channel_label ) ) );
+                $results = $this->monitor->send_alert( $mock_result, 2, false, true );
+                if ( is_wp_error( $results ) ) {
+                        wp_send_json_error( esc_html( $results->get_error_message() ) );
+                }
+
+                $labels = BCS_SMTP_Monitor::channel_labels();
+                $ok     = array_keys( array_filter( $results, function ( $r ) { return true === $r; } ) );
+                $errors = array();
+                foreach ( $results as $ch => $r ) {
+                        if ( is_wp_error( $r ) ) {
+                                /* translators: 1: alert channel name, 2: error message. */
+                                $errors[] = sprintf( __( '%1$s: %2$s', 'bcs-smtp-manager' ), $labels[ $ch ], $r->get_error_message() );
+                        }
+                }
+                /* translators: %s: list of alert channels, e.g. "Slack and Discord". */
+                $delivered = $ok ? sprintf( __( 'Test alert delivered to %s.', 'bcs-smtp-manager' ), BCS_SMTP_Monitor::channel_list_label( $ok ) ) : '';
+                if ( ! $errors ) {
+                        wp_send_json_success( array( 'message' => $delivered ) );
+                }
+                /* translators: %s: one or more "Channel: error" entries. */
+                $failed = sprintf( __( 'Not delivered — %s', 'bcs-smtp-manager' ), implode( '; ', $errors ) );
+                wp_send_json_error( esc_html( trim( $delivered . ' ' . $failed ) ) );
         }
 
@@ -469 +534 @@
                 ob_start();
                 if ( empty( $result['rows'] ) ) {
-                        echo '<tr><td colspan="7" style="text-align:center;padding:24px;color:var(--bcs-smtp-text-3)">' . esc_html__( 'No emails found matching your filters.', 'bcs-smtp-manager' ) . '</td></tr>';
+                        $filtered = '' !== $args['search'] || '' !== $args['status'];
+                        echo '<tr><td colspan="5" class="bcs-smtp-table-empty"><strong>' . esc_html( $filtered ? __( 'No emails match these filters', 'bcs-smtp-manager' ) : __( 'No emails in this period', 'bcs-smtp-manager' ) ) . '</strong><span>' . esc_html( $filtered ? __( 'Try a wider date range or clear the search.', 'bcs-smtp-manager' ) : __( 'Every email WordPress sends will be listed here with its delivery status.', 'bcs-smtp-manager' ) ) . '</span></td></tr>';
                 } else {
+                        $last_day = '';
                         foreach ( $result['rows'] as $row ) {
+                                $day = mysql2date( 'Y-m-d', $row['sent_at'] );
+                                if ( $day !== $last_day ) {
+                                        echo '<tr class="bcs-smtp-day-row"><th colspan="5" scope="colgroup">' . esc_html( $this->log_day_label( $day ) ) . '</th></tr>';
+                                        $last_day = $day;
+                                }
                                 $this->render_email_log_row( $row );
                         }
@@ -478 +550 @@
 
                 wp_send_json_success( array(
-                        'html'  => $html,
-                        'total' => $result['total'],
-                        'pages' => $result['pages'],
-                        'page'  => $result['page'],
+                        'html'   => $html,
+                        'counts' => $this->db->count_email_log_by_status( $args['date_range'], $args['search'] ),
+                        'total'  => $result['total'],
+                        'pages'  => $result['pages'],
+                        'page'   => $result['page'],
                 ) );
         }
@@ -495 +568 @@
                 $date_range = isset( $_POST['date_range'] ) ? sanitize_key( wp_unslash( $_POST['date_range'] ) ) : '30days';
 
-                $summary    = $this->db->get_email_summary( $date_range );
+                list( $own, $own_domains ) = $this->internal_recipients();
+                $summary    = $this->db->get_email_summary_with_recipients( $date_range, $own, $own_domains );
                 $chart_data = $this->db->get_email_chart_data( $date_range );
 
@@ -509 +583 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
+        /**
+         * A CSV cell that spreadsheet apps won't run as a formula. Subjects and addresses can come
+         * from visitors (contact forms), so a value starting with =, +, -, @, tab or CR gets a
+         * leading apostrophe, which Excel and Google Sheets show as plain text.
+         *
+         * @param  mixed $value
+         * @return string
+         */
+        private static function csv_cell( $value ) {
+                $value = (string) $value;
+                return ( '' !== $value && false !== strpos( "=+-@\t\r", $value[0] ) ) ? "'" . $value : $value;
+        }
+
         public function handle_export_csv() {
                 if ( ! isset( $_GET['bcs_smtp_action'] ) || 'export_csv' !== $_GET['bcs_smtp_action'] ) {
                         return;
                 }
-                if ( ! isset( $_GET['nonce'] ) || ! wp_verify_nonce( sanitize_key( wp_unslash( $_GET['nonce'] ) ), 'bcs_smtp_export' ) ) {
-                        wp_die( esc_html__( 'Security check failed.', 'bcs-smtp-manager' ) );
-                }
                 if ( ! current_user_can( 'manage_options' ) ) {
-                        wp_die( esc_html__( 'Permission denied.', 'bcs-smtp-manager' ) );
+                        wp_die( esc_html__( 'Permission denied.', 'bcs-smtp-manager' ), '', array( 'response' => 403 ) );
+                }
+                if ( ! isset( $_GET['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_GET['nonce'] ) ), 'bcs_smtp_export' ) ) {
+                        wp_die( esc_html__( 'This export link has expired. Reload the page and try again.', 'bcs-smtp-manager' ), '', array( 'response' => 403 ) );
                 }
 
@@ -537 +624 @@
                 $out = fopen( 'php://output', 'w' );
                 fwrite( $out, "\xEF\xBB\xBF" ); // UTF-8 BOM for Excel compatibility
-                fputcsv( $out, array( 'ID', 'Date', 'Subject', 'From', 'To', 'Status', 'Error' ) );
+                // Delimiter, enclosure and escape are passed explicitly: PHP 8.4 deprecates relying on the default escape.
+                fputcsv( $out, array( 'ID', 'Date', 'Subject', 'From', 'To', 'Status', 'Error' ), ',', '"', '\\' );
                 foreach ( $rows as $row ) {
                         fputcsv( $out, array(
                                 $row['id'],
                                 $row['sent_at'],
-                                $row['subject'],
-                                $row['from_address'],
-                                $row['to_address'],
+                                self::csv_cell( $row['subject'] ),
+                                self::csv_cell( $row['from_address'] ),
+                                self::csv_cell( $row['to_address'] ),
                                 $row['status'],
-                                $row['error_msg'],
-                        ) );
+                                self::csv_cell( $row['error_msg'] ),
+                        ), ',', '"', '\\' );
                 }
                 fclose( $out );
@@ -555 +643 @@
 
         /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save log retention / auto-prune settings                      */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_log_prune() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $allowed_modes = array( 'days', 'records' );
-                $mode = isset( $_POST['prune_mode'] ) ? sanitize_key( wp_unslash( $_POST['prune_mode'] ) ) : 'days';
-
-                if ( ! in_array( $mode, $allowed_modes, true ) ) { $mode = 'days'; }
-
-                // Values are locked — 30 days or 1000 records. Server always enforces these limits.
-                $value = ( 'records' === $mode ) ? 1000 : 30;
-
-                update_option( 'bcs_log_prune_mode',  $mode );
-                update_option( 'bcs_log_prune_value', $value );
-
-                wp_send_json_success( array( 'message' => __( 'Log retention settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* Cron callback — run auto-prune                                        */
+        /* Cron callback — prune the email log                                   */
         /* ─────────────────────────────────────────────────────────────────── */
 
         public function run_log_pruning() {
-                $mode  = get_option( 'bcs_log_prune_mode',  'days' );
-                $value = (int) get_option( 'bcs_log_prune_value', 30 );
-                $this->db->prune_email_log( $mode, $value );
-
-                // Failed-email bodies get their own, typically shorter, retention window.
-                $this->db->clear_old_failed_bodies( (int) get_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Resend a failed email                                          */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_resend_email() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $log_id = isset( $_POST['log_id'] ) ? absint( $_POST['log_id'] ) : 0;
-                if ( ! $log_id ) { wp_send_json_error( __( 'Missing log entry ID.', 'bcs-smtp-manager' ) ); }
-
-                if ( $this->is_rate_limited( 'resend_' . $log_id, 30 ) ) {
-                        wp_send_json_error( __( 'Please wait 30 seconds before resending this email again.', 'bcs-smtp-manager' ) );
-                }
-
-                $result = $this->mailer->resend_stored_email( $log_id );
-                if ( $result['success'] ) {
-                        wp_send_json_success( array( 'message' => $result['message'] ) );
-                }
-                wp_send_json_error( $result['message'] );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save Resend settings                                           */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_resend_settings() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $enabled = ! empty( $_POST['store_failed_body'] );
-                $days    = isset( $_POST['retention_days'] ) ? absint( $_POST['retention_days'] ) : 7;
-                $days    = max( 1, min( 30, $days ) );
-
-                update_option( BCS_SMTP_OPT_STORE_FAILED_BODY, $enabled );
-                update_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, $days );
-
-                wp_send_json_success( array( 'message' => __( 'Resend settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save report schedule                                           */
-        /* ─────────────────────────────────────────────────────────────────── */
+                // After updating from a version that kept everything, wait out the grace period first.
+                $grace_until = (int) get_option( 'bcs_smtp_prune_after', 0 );
+                if ( $grace_until > time() ) {
+                        return;
+                }
+                if ( $grace_until ) {
+                        delete_option( 'bcs_smtp_prune_after' );
+                }
+                // The log keeps the last 90 days; the reports and charts never look further back.
+                $this->db->prune_email_log( 'days', BCS_SMTP_LOG_RETENTION_DAYS );
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* Report recipients + AJAX — Save report schedule                       */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /**
+         * Split a comma-separated recipient list into valid and invalid entries.
+         *
+         * @param string $list Raw input.
+         * @return array { valid: string[] (lower-cased, de-duplicated), invalid: string[] }
+         */
+        private function parse_report_recipients( $list ) {
+                $valid   = array();
+                $invalid = array();
+                foreach ( explode( ',', (string) $list ) as $part ) {
+                        $part = trim( $part );
+                        if ( '' === $part ) {
+                                continue;
+                        }
+                        if ( is_email( $part ) ) {
+                                $valid[ strtolower( $part ) ] = strtolower( $part );
+                        } else {
+                                $invalid[] = $part;
+                        }
+                }
+                return array( 'valid' => array_values( $valid ), 'invalid' => $invalid );
+        }
+
+        /**
+         * Error text naming the entries that are not email addresses.
+         *
+         * @param string[] $invalid Bad entries.
+         * @return string
+         */
+        private function invalid_recipients_message( $invalid ) {
+                return sprintf(
+                        /* translators: %s: the entries that are not valid email addresses, comma-separated. */
+                        _n( 'This isn’t a valid email address: %s', 'These aren’t valid email addresses: %s', count( $invalid ), 'bcs-smtp-manager' ),
+                        esc_html( implode( ', ', $invalid ) )
+                );
+        }
 
         public function ajax_save_report_schedule() {
@@ -637 +704 @@
                 if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
 
-                $enabled   = ! empty( $_POST['enabled'] );
-                $emails    = isset( $_POST['emails'] )    ? sanitize_text_field( wp_unslash( $_POST['emails'] ) )    : '';
-                $frequency = isset( $_POST['frequency'] ) ? sanitize_key( wp_unslash( $_POST['frequency'] ) )        : 'weekly';
-
-                if ( ! in_array( $frequency, array( 'daily', 'weekly', 'monthly' ), true ) ) {
-                        $frequency = 'weekly';
-                }
+                $enabled = ! empty( $_POST['enabled'] );
+                $parsed  = $this->parse_report_recipients( isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '' );
+
+                if ( ! empty( $parsed['invalid'] ) ) {
+                        wp_send_json_error( array( 'message' => $this->invalid_recipients_message( $parsed['invalid'] ), 'field' => 'emails' ) );
+                }
+                if ( $enabled && empty( $parsed['valid'] ) ) {
+                        wp_send_json_error( array( 'message' => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ), 'field' => 'emails' ) );
+                }
+                $emails = implode( ', ', $parsed['valid'] );
 
                 update_option( 'bcs_report_schedule_enabled', $enabled );
                 update_option( 'bcs_report_emails',           $emails );
-                update_option( 'bcs_report_frequency',        $frequency );
-
-                // Re-schedule the cron event.
-                $timestamp = wp_next_scheduled( 'bcs_smtp_send_report' );
-                if ( $timestamp ) {
-                        wp_unschedule_event( $timestamp, 'bcs_smtp_send_report' );
-                }
-                if ( $enabled && ! empty( $emails ) ) {
-                        $recurrence = ( 'daily' === $frequency ) ? 'daily' : ( ( 'monthly' === $frequency ) ? 'bcs_smtp_monthly' : 'weekly' );
-                        wp_schedule_event( time() + DAY_IN_SECONDS, $recurrence, 'bcs_smtp_send_report' );
-                }
-
-                wp_send_json_success( array( 'message' => __( 'Report schedule saved.', 'bcs-smtp-manager' ) ) );
+                // Reports are monthly, on the 1st at 9:00; options from the old schedule picker are retired.
+
+                $next = $this->schedule_next_report();
+
+                wp_send_json_success( array(
+                        'message' => __( 'Report schedule saved.', 'bcs-smtp-manager' ),
+                        'next'    => $next ? $this->describe_next_report( $next ) : '',
+                        'emails'  => $emails,
+                ) );
         }
 
@@ -669 +735 @@
                 check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
                 if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
+                $parsed = $this->parse_report_recipients( isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '' );
+                if ( ! empty( $parsed['invalid'] ) ) {
+                        wp_send_json_error( array( 'message' => $this->invalid_recipients_message( $parsed['invalid'] ), 'field' => 'emails' ) );
+                }
+                if ( empty( $parsed['valid'] ) ) {
+                        wp_send_json_error( array( 'message' => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ), 'field' => 'emails' ) );
+                }
                 if ( $this->is_rate_limited( 'send_report', 120 ) ) { wp_send_json_error( __( 'Please wait 2 minutes before sending another report.', 'bcs-smtp-manager' ) ); }
 
-                $emails    = isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '';
-                $frequency = get_option( 'bcs_report_frequency', 'weekly' );
-                $range_map = array( 'daily' => 'today', 'weekly' => '7days', 'monthly' => 'this_month' );
-                $date_range = isset( $range_map[ $frequency ] ) ? $range_map[ $frequency ] : '7days';
-
-                if ( empty( $emails ) ) {
-                        wp_send_json_error( __( 'No recipient email addresses entered.', 'bcs-smtp-manager' ) );
-                }
+                $emails     = implode( ', ', $parsed['valid'] );
+                // "Send now" shows the current month so far; the scheduled report on the 1st covers the full previous month.
+                $date_range = 'this_month';
 
                 $result = $this->send_report_to( $emails, $date_range );
@@ -699 +767 @@
         public function send_scheduled_report() {
                 if ( ! get_option( 'bcs_report_schedule_enabled', false ) ) {
+                        wp_clear_scheduled_hook( 'bcs_smtp_send_report' );
                         return;
                 }
-                $emails    = get_option( 'bcs_report_emails', '' );
-                $frequency = get_option( 'bcs_report_frequency', 'weekly' );
-                $range_map = array( 'daily' => 'today', 'weekly' => '7days', 'monthly' => 'this_month' );
-                $date_range = isset( $range_map[ $frequency ] ) ? $range_map[ $frequency ] : '7days';
+                $emails = get_option( 'bcs_report_emails', '' );
                 if ( ! empty( $emails ) ) {
-                        $this->send_report_to( $emails, $date_range );
-                }
+                        $this->send_report_to( $emails, $this->report_range_for() );
+                }
+                // One-off events chained at the chosen time; this also replaces the interval-based
+                // recurring event older versions created, which drifted from the save time.
+                $this->schedule_next_report();
+        }
+
+        /**
+         * The period a report covers: reports go out on the 1st, so they cover the whole previous month.
+         *
+         * @return string Date-range key understood by BCS_SMTP_DB.
+         */
+        private function report_range_for() {
+                return 'last_month';
+        }
+
+        /**
+         * Next send time for the saved schedule, in the site's timezone.
+         *
+         * @return int|null Unix timestamp, or null when no schedule is active.
+         */
+        private function next_report_timestamp() {
+                if ( ! get_option( 'bcs_report_schedule_enabled', false ) || '' === trim( (string) get_option( 'bcs_report_emails', '' ) ) ) {
+                        return null;
+                }
+                $now = new DateTimeImmutable( 'now', wp_timezone() );
+                $at  = $now->modify( 'first day of this month' )->setTime( 9, 0 );
+                if ( $at <= $now ) {
+                        $at = $at->modify( 'first day of next month' );
+                }
+                return $at->getTimestamp();
+        }
+
+        /**
+         * Replace any pending report event with one at the next scheduled time.
+         *
+         * @return int|null The booked timestamp.
+         */
+        /**
+         * Keep the monthly report booked while reports are on: the 1.3 upgrade replaces the old
+         * daily/weekly event, and a cron run that never happened can leave nothing queued.
+         */
+        public function ensure_report_scheduled() {
+                if ( get_option( 'bcs_report_schedule_enabled', false ) && ! wp_next_scheduled( 'bcs_smtp_send_report' ) ) {
+                        $this->schedule_next_report();
+                }
+        }
+
+        private function schedule_next_report() {
+                wp_clear_scheduled_hook( 'bcs_smtp_send_report' );
+                $next = $this->next_report_timestamp();
+                if ( $next ) {
+                        wp_schedule_single_event( $next, 'bcs_smtp_send_report' );
+                }
+                return $next;
+        }
+
+        /**
+         * "Next report: Mon, Oct 27 at 9:00 am" in the site's date/time format.
+         *
+         * @param int $timestamp Unix timestamp.
+         * @return string
+         */
+        private function describe_next_report( $timestamp ) {
+                /* translators: 1: date, e.g. "Mon, Oct 27", 2: time, e.g. "9:00 am". */
+                return sprintf( __( 'Next report: %1$s at %2$s', 'bcs-smtp-manager' ), wp_date( 'D, M j', $timestamp ), wp_date( get_option( 'time_format', 'g:i a' ), $timestamp ) );
         }
 
@@ -723 +853 @@
                 $summary    = $this->db->get_email_summary( $date_range );
                 $chart_data = $this->db->get_email_chart_data( $date_range );
-                $subject    = sprintf( '[%s] Email Delivery Report', get_bloginfo( 'name' ) );
+                /* translators: 1: site name, 2: period, e.g. "October 2026". */
+                $subject    = sprintf( __( '%1$s email report: %2$s', 'bcs-smtp-manager' ), get_bloginfo( 'name' ), $this->report_period_label( $date_range ) );
                 $body       = $this->build_report_html_email( $summary, $chart_data, $date_range );
 
@@ -739 +870 @@
         }
 
+        /**
+         * "October 2026", or "October 2026 (so far)" for the current month.
+         *
+         * @param string $date_range Date-range key.
+         * @return string
+         */
+        private function report_period_label( $date_range ) {
+                if ( 'last_month' === $date_range ) {
+                        return wp_date( 'F Y', strtotime( 'first day of last month', current_time( 'timestamp' ) ) );
+                }
+                if ( 'this_month' === $date_range ) {
+                        /* translators: %s: month and year, e.g. "October 2026". */
+                        return sprintf( __( '%s (so far)', 'bcs-smtp-manager' ), wp_date( 'F Y' ) );
+                }
+                return __( 'Last 30 days', 'bcs-smtp-manager' );
+        }
+
+        /**
+         * Days the report chart covers, as Y-m-d keys in site time, plus whether each is still to come.
+         * A month report shows every day of that month, so the shape reads the same every time.
+         *
+         * @param string $date_range Date-range key.
+         * @param array  $labels     Day keys the chart data has.
+         * @return array List of array( 'Y-m-d', is_future ).
+         */
+        private function report_days( $date_range, $labels ) {
+                $now = current_time( 'timestamp' );
+                if ( 'last_month' === $date_range || 'this_month' === $date_range ) {
+                        $first = 'last_month' === $date_range ? strtotime( 'first day of last month', $now ) : $now;
+                        $today = gmdate( 'Y-m-d', $now );
+                        $days  = array();
+                        for ( $d = 1, $n = (int) gmdate( 't', $first ); $d <= $n; $d++ ) {
+                                $key    = gmdate( 'Y-m-', $first ) . sprintf( '%02d', $d );
+                                $days[] = array( $key, $key > $today );
+                        }
+                        return $days;
+                }
+                return array_map( function ( $key ) { return array( $key, false ); }, array_slice( $labels, -31 ) );
+        }
+
         private function build_report_html_email( $summary, $chart_data, $date_range ) {
-                $site_name = get_bloginfo( 'name' );
-                $site_url  = get_bloginfo( 'url' );
-                $timestamp = current_time( 'M j, Y \a\t g:i A' );
-                $range_labels = array(
-                        'today'      => 'Today',
-                        '7days'      => 'Last 7 Days',
-                        '30days'     => 'Last 30 Days',
-                        'this_week'  => 'This Week',
-                        'this_month' => 'This Month',
-                        '3months'    => 'Last 3 Months',
-                        '6months'    => 'Last 6 Months',
-                        'year'       => 'Last Year',
-                        'all'        => 'All Time',
+                $T       = 'BCS_SMTP_Email_Template';
+                $period  = $this->report_period_label( $date_range );
+                $total   = (int) $summary['total'];
+                $sent    = (int) $summary['success'];
+                $failed  = (int) $summary['failed'];
+                $unconf  = (int) $summary['unconfirmed'];
+                $rate    = $total > 0 ? round( ( $sent / $total ) * 100, 1 ) : 0;
+                $rate_tx = rtrim( rtrim( number_format_i18n( $rate, 1 ), '0' ), '.,' );
+                $colors  = array( 'sent' => '#16a36a', 'failed' => '#e5484d', 'unconfirmed' => '#f0a020' );
+
+                // Headline verdict for the period.
+                if ( 0 === $total ) {
+                        $tone    = 'info';
+                        $verdict = __( 'No email was sent', 'bcs-smtp-manager' );
+                        $note    = __( 'Nothing went out in this period. If your site has contact forms or a shop, send a test email to make sure the connection still works.', 'bcs-smtp-manager' );
+                } elseif ( 0 === $failed ) {
+                        $tone    = 'ok';
+                        $verdict = __( 'Every email was delivered', 'bcs-smtp-manager' );
+                        /* translators: %s: number of emails. */
+                        $note    = sprintf( _n( '%s email went out without a single failure.', 'All %s emails went out without a single failure.', $total, 'bcs-smtp-manager' ), number_format_i18n( $total ) );
+                } else {
+                        $tone    = $rate >= 90 ? 'warn' : 'bad';
+                        /* translators: %s: number of failed emails. */
+                        $verdict = sprintf( _n( '%s email failed', '%s emails failed', $failed, 'bcs-smtp-manager' ), number_format_i18n( $failed ) );
+                        /* translators: 1: delivered count, 2: total count. */
+                        $note    = sprintf( __( '%1$s of %2$s emails were delivered. The failed ones never reached their inbox.', 'bcs-smtp-manager' ), number_format_i18n( $sent ), number_format_i18n( $total ) );
+                }
+
+                // Share-of-total bar.
+                $bar = '';
+                if ( $total > 0 ) {
+                        foreach ( array( 'sent' => $sent, 'failed' => $failed, 'unconfirmed' => $unconf ) as $k => $v ) {
+                                if ( $v > 0 ) {
+                                        $bar .= '<td width="' . max( 1, round( $v / $total * 100 ) ) . '%" bgcolor="' . $colors[ $k ] . '" style="background:' . $colors[ $k ] . ';height:8px;font-size:0;line-height:0">&nbsp;</td>';
+                                }
+                        }
+                } else {
+                        $bar = '<td class="bcs-track" bgcolor="#e8ecf2" style="background:#e8ecf2;height:8px;font-size:0;line-height:0">&nbsp;</td>';
+                }
+
+                // Stat columns.
+                $stats = '';
+                foreach ( array(
+                        array( __( 'Delivered', 'bcs-smtp-manager' ), $sent, $colors['sent'] ),
+                        array( __( 'Failed', 'bcs-smtp-manager' ), $failed, $colors['failed'] ),
+                        array( __( 'Unconfirmed', 'bcs-smtp-manager' ), $unconf, $colors['unconfirmed'] ),
+                ) as $i => $st ) {
+                        $stats .= '<td width="33%" valign="top" class="bcs-line" style="padding:16px 0 0 ' . ( $i ? '16px;border-left:1px solid #edf0f5' : '0' ) . '">
+          <div class="bcs-ink3" style="font-size:12px;color:#64748b"><span style="color:' . $st[2] . '">&#9679;</span>&nbsp;' . esc_html( $st[0] ) . '</div>
+          <div class="bcs-ink" style="margin-top:4px;font-size:24px;font-weight:700;color:#0f172a;letter-spacing:-.3px">' . esc_html( number_format_i18n( $st[1] ) ) . '</div>
+        </td>';
+                }
+
+                // Daily column chart: every day of the period, stacked delivered / failed / unconfirmed.
+                $by_day = array();
+                foreach ( $chart_data['labels'] as $i => $key ) {
+                        $by_day[ $key ] = array( (int) $chart_data['success'][ $i ], (int) $chart_data['failed'][ $i ], (int) $chart_data['unconfirmed'][ $i ] );
+                }
+                $days = $this->report_days( $date_range, $chart_data['labels'] );
+                $max  = 1;
+                foreach ( $days as $day ) {
+                        if ( isset( $by_day[ $day[0] ] ) ) { $max = max( $max, array_sum( $by_day[ $day[0] ] ) ); }
+                }
+                $plot  = 96;
+                $cols  = '';
+                $width = round( 100 / max( 1, count( $days ) ), 2 );
+                foreach ( $days as $day ) {
+                        list( $s, $f, $u ) = isset( $by_day[ $day[0] ] ) ? $by_day[ $day[0] ] : array( 0, 0, 0 );
+                        $stack = '';
+                        if ( $day[1] ) {
+                                $stack = '';
+                        } elseif ( $s + $f + $u > 0 ) {
+                                foreach ( array( array( $u, $colors['unconfirmed'] ), array( $f, $colors['failed'] ), array( $s, $colors['sent'] ) ) as $seg ) {
+                                        if ( $seg[0] > 0 ) {
+                                                $h      = max( 3, (int) round( $seg[0] / $max * $plot ) );
+                                                $stack .= '<tr><td height="' . $h . '" bgcolor="' . $seg[1] . '" style="background:' . $seg[1] . ';height:' . $h . 'px;font-size:0;line-height:0">&nbsp;</td></tr>';
+                                        }
+                                }
+                        } else {
+                                $stack = '<tr><td height="2" class="bcs-track" bgcolor="#e3e8ef" style="background:#e3e8ef;height:2px;font-size:0;line-height:0">&nbsp;</td></tr>';
+                        }
+                        /* translators: 1: date, 2: delivered count, 3: failed count. */
+                        $tip   = sprintf( __( '%1$s: %2$s delivered, %3$s failed', 'bcs-smtp-manager' ), wp_date( 'M j', strtotime( $day[0] . ' 12:00:00' ) ), $s, $f );
+                        $cols .= '<td width="' . $width . '%" valign="bottom" title="' . esc_attr( $tip ) . '" style="padding:0 1px;height:' . $plot . 'px">'
+                                . ( $stack ? '<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">' . $stack . '</table>' : '' ) . '</td>';
+                }
+                $first_day = $days ? wp_date( 'M j', strtotime( $days[0][0] . ' 12:00:00' ) ) : '';
+                $mid_day   = $days ? wp_date( 'M j', strtotime( $days[ (int) floor( count( $days ) / 2 ) ][0] . ' 12:00:00' ) ) : '';
+                $last_day  = $days ? wp_date( 'M j', strtotime( $days[ count( $days ) - 1 ][0] . ' 12:00:00' ) ) : '';
+                $legend    = '';
+                foreach ( array( 'sent' => __( 'Delivered', 'bcs-smtp-manager' ), 'failed' => __( 'Failed', 'bcs-smtp-manager' ), 'unconfirmed' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ) as $k => $label ) {
+                        $legend .= '<span style="white-space:nowrap;margin-left:12px"><span style="color:' . $colors[ $k ] . '">&#9632;</span>&nbsp;' . esc_html( $label ) . '</span>';
+                }
+
+                $body = '
+      <tr><td class="bcs-pad" style="padding:34px 40px 0">
+        ' . $T::pill( $verdict, $tone ) . '
+        <h1 class="bcs-ink bcs-h1" style="margin:16px 0 8px;font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.4px;color:#0f172a">' . esc_html( $period ) . '</h1>
+        <p class="bcs-ink2" style="margin:0;font-size:15px;line-height:1.65;color:#475569">' . esc_html( $note ) . '</p>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:28px 40px 0">
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+          <td valign="bottom">
+            <div class="bcs-ink3" style="font-size:12px;color:#64748b">' . esc_html__( 'Delivery rate', 'bcs-smtp-manager' ) . '</div>
+            <div class="bcs-ink bcs-big" style="margin-top:2px;font-size:46px;line-height:1.05;font-weight:700;letter-spacing:-1.2px;color:#0f172a">' . esc_html( $total ? $rate_tx . '%' : '—' ) . '</div>
+          </td>
+          <td valign="bottom" align="right" class="bcs-ink3" style="font-size:13px;color:#64748b;padding-bottom:6px">' .
+                        /* translators: %s: number of emails. */
+                        esc_html( sprintf( _n( '%s email in total', '%s emails in total', $total, 'bcs-smtp-manager' ), number_format_i18n( $total ) ) ) . '</td>
+        </tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="margin-top:14px;border-radius:4px;overflow:hidden"><tr>' . $bar . '</tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>' . $stats . '</tr></table>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:32px 40px 0">
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+          <td class="bcs-ink" style="font-size:15px;font-weight:700;color:#0f172a">' . esc_html__( 'Day by day', 'bcs-smtp-manager' ) . '</td>
+          <td align="right" class="bcs-ink3 bcs-hide-sm" style="font-size:12px;color:#64748b">' . $legend . '</td>
+        </tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" class="bcs-line" style="margin-top:16px;border-bottom:1px solid #e3e8ef"><tr>' . $cols . '</tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="margin-top:8px"><tr>
+          <td class="bcs-ink3" style="font-size:11px;color:#8a94a6">' . esc_html( $first_day ) . '</td>
+          <td class="bcs-ink3" align="center" style="font-size:11px;color:#8a94a6">' . esc_html( $mid_day ) . '</td>
+          <td class="bcs-ink3" align="right" style="font-size:11px;color:#8a94a6">' . esc_html( $last_day ) . '</td>
+        </tr></table>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:28px 40px 36px">
+        ' . $T::button( $T::settings_url( $failed ? 'email-log' : 'reports' ), $failed ? __( 'Review failed emails', 'bcs-smtp-manager' ) : __( 'Open the full report', 'bcs-smtp-manager' ) ) . '
+      </td></tr>';
+
+                return $T::document( array(
+                        /* translators: %s: period, e.g. "October 2026". */
+                        'title'     => sprintf( __( 'Email report: %s', 'bcs-smtp-manager' ), $period ),
+                        /* translators: 1: period, 2: delivery-rate verdict, e.g. "3 emails failed". */
+                        'preheader' => sprintf( __( '%1$s: %2$s.', 'bcs-smtp-manager' ), $period, $total ? $verdict . ' · ' . $rate_tx . '% ' . __( 'delivered', 'bcs-smtp-manager' ) : $verdict ),
+                        'label'     => __( 'Monthly email report', 'bcs-smtp-manager' ),
+                        'body'      => $body,
+                        'footer'    => $T::footer( $T::settings_url( 'reports' ), __( 'Change or stop these reports', 'bcs-smtp-manager' ), esc_html__( 'You get this because you’re on the report list for this site.', 'bcs-smtp-manager' ) ),
+                ) );
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* Helpers: status chips, provider presets                              */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /**
+         * Status vocabulary shared by the log table, the overview and the JS.
+         *
+         * @return array status => array( 'tone' => css modifier, 'label' => visible word )
+         */
+        private function status_marks() {
+                return array(
+                        'success'     => array( 'tone' => 'ok',   'label' => __( 'Sent', 'bcs-smtp-manager' ) ),
+                        'failed'      => array( 'tone' => 'bad',  'label' => __( 'Failed', 'bcs-smtp-manager' ) ),
+                        'unconfirmed' => array( 'tone' => 'warn', 'label' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ),
                 );
-                $range_label = isset( $range_labels[ $date_range ] ) ? $range_labels[ $date_range ] : $date_range;
-
-                // Build simple HTML bar chart rows.
-                $max_total = 1;
-                foreach ( $chart_data['labels'] as $i => $day ) {
-                        $day_total = $chart_data['success'][ $i ] + $chart_data['failed'][ $i ] + $chart_data['unconfirmed'][ $i ];
-                        if ( $day_total > $max_total ) { $max_total = $day_total; }
-                }
-
-                // Build bar chart rows — skip days with zero activity; show last 14 days with data.
-                $active_days = array();
-                foreach ( $chart_data['labels'] as $i => $label ) {
-                        if ( $chart_data['success'][ $i ] > 0 || $chart_data['failed'][ $i ] > 0 || $chart_data['unconfirmed'][ $i ] > 0 ) {
-                                $active_days[] = $i;
+        }
+
+        /**
+         * Status chip for one email's delivery status.
+         *
+         * @param string $status success|failed|unconfirmed.
+         * @return string Escaped HTML.
+         */
+        /**
+         * Whole minutes since the last health check (rounded down) or until the next (rounded up),
+         * so the two always add up to the check interval.
+         *
+         * @param  int  $timestamp
+         * @param  bool $until True for a time in the future.
+         * @return string
+         */
+        private function check_minutes( $timestamp, $until = false ) {
+                $seconds = $until ? $timestamp - time() : time() - $timestamp;
+                $mins    = $until ? (int) ceil( $seconds / 60 ) : (int) floor( $seconds / 60 );
+                if ( $mins < 1 ) {
+                        return __( 'less than a minute', 'bcs-smtp-manager' );
+                }
+                /* translators: %d: number of minutes. */
+                return sprintf( _n( '%d minute', '%d minutes', $mins, 'bcs-smtp-manager' ), $mins );
+        }
+
+        private function status_html( $status ) {
+                $marks = $this->status_marks();
+                $mark  = isset( $marks[ $status ] ) ? $marks[ $status ] : array( 'tone' => 'off', 'label' => $status );
+                return '<span class="bcs-smtp-status bcs-smtp-status--' . esc_attr( $mark['tone'] ) . '"><span class="bcs-smtp-status-dot" aria-hidden="true"></span>' . esc_html( $mark['label'] ) . '</span>';
+        }
+
+        /**
+         * Provider presets for guided setup. Host/port/encryption are standard published SMTP settings.
+         *
+         * @return array
+         */
+        private function provider_presets() {
+                // Last saved "Other SMTP server" details. Older installs that saved a custom host
+                // before this option existed fall back to the current host when it isn't a preset.
+                $custom = wp_parse_args( (array) get_option( 'bcs_smtp_custom_server', array() ), array( 'host' => '', 'port' => 587, 'encryption' => 'tls' ) );
+                $saved  = strtolower( trim( (string) get_option( 'bcs_smtp_host', '' ) ) );
+                $known  = array( 'smtp.gmail.com', 'smtp.office365.com', 'smtp-mail.outlook.com', 'smtp.sendgrid.net', 'smtp.mailgun.org', 'smtp-relay.brevo.com', 'smtp.zoho.com', 'smtp.zoho.eu', 'smtp.zoho.in', 'smtp.mail.yahoo.com' );
+                if ( '' === $custom['host'] && '' !== $saved && ! in_array( $saved, $known, true ) && ! preg_match( '/^email-smtp\.[a-z0-9-]+\.amazonaws\.com$/', $saved ) ) {
+                        $custom = array( 'host' => $saved, 'port' => (int) get_option( 'bcs_smtp_port', 587 ), 'encryption' => get_option( 'bcs_smtp_encryption', 'tls' ) );
+                }
+
+                return array(
+                        'gmail'     => array(
+                                'label' => __( 'Gmail / Google Workspace', 'bcs-smtp-manager' ),
+                                'short' => 'G',
+                                'host'  => 'smtp.gmail.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Gmail or Workspace address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'App password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Google needs a 16-character App Password here, not your normal password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://myaccount.google.com/apppasswords',
+                                'link_label' => __( 'Create an App Password', 'bcs-smtp-manager' ),
+                        ),
+                        'microsoft' => array(
+                                'label' => __( 'Microsoft 365 / Outlook', 'bcs-smtp-manager' ),
+                                'short' => 'M',
+                                'host'  => 'smtp.office365.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Microsoft 365 email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password or app password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'SMTP sign-in (SMTP AUTH) must be allowed for this mailbox in Microsoft 365 admin.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission',
+                                'link_label' => __( 'How to allow SMTP AUTH', 'bcs-smtp-manager' ),
+                        ),
+                        'sendgrid'  => array(
+                                'label' => __( 'SendGrid', 'bcs-smtp-manager' ),
+                                'short' => 'SG',
+                                'host'  => 'smtp.sendgrid.net',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => 'apikey',
+                                'user_hint' => __( 'Always the word apikey', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'API key', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Paste a SendGrid API key with Mail Send permission as the password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp',
+                                'link_label' => __( 'SendGrid SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'ses'       => array(
+                                'label' => __( 'Amazon SES', 'bcs-smtp-manager' ),
+                                'short' => 'SES',
+                                // SES servers are per region, so there's no single right default: the user pastes theirs.
+                                'host'  => '',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'SMTP username from the SES console', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Copy the SMTP endpoint for your region from the SES console (SMTP settings) into Server details. Use SES SMTP credentials, not your AWS access keys.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html',
+                                'link_label' => __( 'SES SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'mailgun'   => array(
+                                'label' => __( 'Mailgun', 'bcs-smtp-manager' ),
+                                'short' => 'MG',
+                                'host'  => 'smtp.mailgun.org',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'For example postmaster@mg.yourdomain.com', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Find the SMTP login and password under your sending domain in Mailgun.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/',
+                                'link_label' => __( 'Mailgun SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'brevo'     => array(
+                                'label' => __( 'Brevo', 'bcs-smtp-manager' ),
+                                'short' => 'B',
+                                'host'  => 'smtp-relay.brevo.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your Brevo SMTP login', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP key', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Use an SMTP key from Brevo, not your account password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://help.brevo.com/hc/en-us/articles/209462765',
+                                'link_label' => __( 'Brevo SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'zoho'      => array(
+                                'label' => __( 'Zoho Mail', 'bcs-smtp-manager' ),
+                                'short' => 'Z',
+                                'host'  => 'smtp.zoho.com',
+                                'port'  => 465,
+                                'enc'   => 'ssl',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Zoho email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password or app password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'EU accounts use smtp.zoho.eu. Use an app-specific password if two-factor sign-in is on.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://www.zoho.com/mail/help/zoho-smtp.html',
+                                'link_label' => __( 'Zoho SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'yahoo'     => array(
+                                'label' => __( 'Yahoo Mail', 'bcs-smtp-manager' ),
+                                'short' => 'Y',
+                                'host'  => 'smtp.mail.yahoo.com',
+                                'port'  => 465,
+                                'enc'   => 'ssl',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Yahoo email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'App password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Generate an app password under Yahoo Account Security.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://help.yahoo.com/kb/SLN15241.html',
+                                'link_label' => __( 'Yahoo app passwords', 'bcs-smtp-manager' ),
+                        ),
+                        'other'     => array(
+                                'label' => __( 'Other SMTP server', 'bcs-smtp-manager' ),
+                                'short' => '',
+                                'host'  => $custom['host'],
+                                'port'  => $custom['port'],
+                                'enc'   => $custom['encryption'],
+                                'user'  => '',
+                                'user_hint' => __( 'Usually your full email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Your host or email provider lists these details. Port 587 with TLS works for most servers.', 'bcs-smtp-manager' ),
+                                'link'  => '',
+                                'link_label' => '',
+                        ),
+                );
+        }
+
+        /**
+         * Which preset matches the saved host. Empty string when nothing is saved yet.
+         *
+         * @param string $host Saved SMTP host.
+         * @return string
+         */
+        private function detect_provider( $host ) {
+                $host = strtolower( trim( $host ) );
+                if ( '' === $host ) {
+                        return '';
+                }
+                if ( preg_match( '/^email-smtp\.[a-z0-9-]+\.amazonaws\.com$/', $host ) ) {
+                        return 'ses';
+                }
+                if ( 'smtp.zoho.eu' === $host || 'smtp.zoho.in' === $host ) {
+                        return 'zoho';
+                }
+                if ( 'smtp-mail.outlook.com' === $host ) {
+                        return 'microsoft';
+                }
+                foreach ( $this->provider_presets() as $key => $preset ) {
+                        if ( $preset['host'] && $preset['host'] === $host ) {
+                                return $key;
                         }
                 }
-                $active_days = array_slice( $active_days, -14 ); // cap at 14
-
-                $chart_rows = '';
-                foreach ( $active_days as $i ) {
-                        $s   = $chart_data['success'][ $i ];
-                        $f   = $chart_data['failed'][ $i ];
-                        $u   = $chart_data['unconfirmed'][ $i ];
-                        $tot = $s + $f + $u;
-                        $sw  = $max_total > 0 ? round( ( $s / $max_total ) * 100 ) : 0;
-                        $fw  = $max_total > 0 ? round( ( $f / $max_total ) * 100 ) : 0;
-                        $uw  = $max_total > 0 ? round( ( $u / $max_total ) * 100 ) : 0;
-                        $day = substr( $chart_data['labels'][ $i ], 5 ); // MM-DD
-                        $chart_rows .= '<tr>
-                                <td style="font-size:10px;color:#64748b;width:44px;text-align:right;padding-right:8px;white-space:nowrap">' . esc_html( $day ) . '</td>
-                                <td style="padding:2px 0">
-                                        <table cellpadding="0" cellspacing="0" border="0" width="100%"><tr>
-                                                ' . ( $sw > 0 ? '<td style="background:#10b981;width:' . $sw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                ' . ( $fw > 0 ? '<td style="background:#ef4444;width:' . $fw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                ' . ( $uw > 0 ? '<td style="background:#f59e0b;width:' . $uw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                <td></td>
-                                        </tr></table>
-                                </td>
-                                <td style="font-size:10px;color:#64748b;width:32px;text-align:right;padding-left:6px">' . $tot . '</td>
-                        </tr>';
-                }
-
-                $success_rate = $summary['total'] > 0 ? round( ( $summary['success'] / $summary['total'] ) * 100 ) : 0;
-
-                return BCS_SMTP_Email_Template::wrapper_open( 'Email Report', 620, 16, '.09' ) . '
-  <!-- Header — bgcolor attr = Outlook fallback; background-color = Yahoo/other fallback; background-image = gradient for supporting clients -->
-  <tr><td bgcolor="#6366f1" style="background-color:#6366f1;background-image:linear-gradient(135deg,#6366f1 0%,#4f46e5 100%);padding:36px 48px">
-    <p style="margin:0;font-size:11px;color:#c7d2fe;letter-spacing:1.5px;text-transform:uppercase;font-weight:600">Email Delivery Report</p>
-    <h1 style="margin:8px 0 4px;font-size:26px;color:#ffffff;font-weight:700;letter-spacing:-0.3px">' . esc_html( $site_name ) . '</h1>
-    <p style="margin:0;font-size:13px;color:#e0e7ff">' . esc_html( $range_label ) . ' &nbsp;&bull;&nbsp; Generated ' . esc_html( $timestamp ) . '</p>
-  </td></tr>
-
-  <!-- Delivery rate banner -->
-  <tr><td bgcolor="#4f46e5" style="background-color:#4f46e5;padding:14px 48px">
-    <p style="margin:0;font-size:13px;color:#e0e7ff">
-      <strong style="color:#ffffff">Delivery Rate: ' . $success_rate . '%</strong>
-      &nbsp;&mdash;&nbsp;' . intval( $summary['success'] ) . ' of ' . intval( $summary['total'] ) . ' emails delivered successfully
-    </p>
-  </td></tr>
-
-  <!-- Stat boxes -->
-  <tr><td style="padding:36px 48px 0">
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-    <tr>
-      <td width="25%" style="padding:0 5px 0 0">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#15803d;line-height:1">' . intval( $summary['success'] ) . '</div>
-            <div style="font-size:11px;color:#16a34a;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Sent</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#fef2f2;border:1px solid #fecaca;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#dc2626;line-height:1">' . intval( $summary['failed'] ) . '</div>
-            <div style="font-size:11px;color:#ef4444;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Failed</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#fffbeb;border:1px solid #fde68a;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#d97706;line-height:1">' . intval( $summary['unconfirmed'] ) . '</div>
-            <div style="font-size:11px;color:#f59e0b;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Unconfirmed</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 0 0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#334155;line-height:1">' . intval( $summary['total'] ) . '</div>
-            <div style="font-size:11px;color:#64748b;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Total</div>
-          </td></tr>
-        </table>
-      </td>
-    </tr>
-    </table>
-  </td></tr>
-
-  <!-- Chart -->
-  <tr><td style="padding:32px 48px 0">
-    <p style="margin:0 0 16px;font-size:14px;font-weight:700;color:#1e293b;letter-spacing:-0.2px">Daily Activity</p>
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-      ' . $chart_rows . '
-    </table>
-    <!-- Legend -->
-    <table cellpadding="0" cellspacing="0" border="0" style="margin-top:16px">
-      <tr>
-        <td style="width:10px;height:10px;background:#10b981;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 16px 0 6px;vertical-align:middle">Sent</td>
-        <td style="width:10px;height:10px;background:#ef4444;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 16px 0 6px;vertical-align:middle">Failed</td>
-        <td style="width:10px;height:10px;background:#f59e0b;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 0 0 6px;vertical-align:middle">Unconfirmed</td>
-      </tr>
-    </table>
-  </td></tr>
-
-  <!-- Footer -->
-  <tr><td style="padding:32px 48px;margin-top:32px;border-top:1px solid #e2e8f0">
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-      <tr>
-        <td style="text-align:center">
-          <p style="margin:0 0 4px;font-size:12px;color:#64748b">
-            <a href="' . esc_url( $site_url ) . '" style="color:#6366f1;text-decoration:none;font-weight:600">' . esc_html( $site_name ) . '</a>
-          </p>
-          <p style="margin:0;font-size:11px;color:#94a3b8">Automated report by <strong>ByteCoreStack SMTP</strong> &bull; <a href="' . esc_url( $site_url ) . '/wp-admin/options-general.php?page=bcs-smtp-manager" style="color:#94a3b8;text-decoration:none">Manage settings</a></p>
-        </td>
-      </tr>
-    </table>
-  </td></tr>
-' . BCS_SMTP_Email_Template::wrapper_close();
+                return 'other';
         }
 
@@ -893 +1270 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
+        /**
+         * Heading for a day in the email log: Today, Yesterday, or the date.
+         *
+         * @param  string $ymd Site-local date, Y-m-d.
+         * @return string
+         */
+        private function log_day_label( $ymd ) {
+                $today = current_time( 'Y-m-d' );
+                if ( $ymd === $today ) {
+                        return __( 'Today', 'bcs-smtp-manager' );
+                }
+                if ( gmdate( 'Y-m-d', strtotime( $today . ' -1 day' ) ) === $ymd ) {
+                        return __( 'Yesterday', 'bcs-smtp-manager' );
+                }
+                return mysql2date( 'l, F j', $ymd . ' 00:00:00' );
+        }
+
+        /**
+         * Link to the full view of one logged email.
+         *
+         * @param  int $id Log row ID.
+         * @return string
+         */
+        private function email_view_url( $id ) {
+                return add_query_arg( array( 'page' => 'bcs-smtp-manager', 'email' => (int) $id ), admin_url( 'options-general.php' ) );
+        }
+
+        /**
+         * Plain-text version of an HTML email: line breaks kept, links shown as "text (url)".
+         *
+         * @param  string $html
+         * @return string
+         */
+        private function email_text_version( $html ) {
+                $html = preg_replace( '#<(script|style|head|title)\b[^>]*>.*?</\1>#is', '', $html );
+                $html = preg_replace( '/\s+/u', ' ', $html ); // Line breaks in the source aren't real ones; tags decide below.
+                $html = preg_replace( '#<a\b[^>]*href=["\']([^"\']+)["\'][^>]*>(.*?)</a>#is', '$2 ($1)', $html );
+                $html = preg_replace( '#<br\s*/?>#i', "\n", $html );
+                $html = preg_replace( '#<li\b[^>]*>#i', "\n• ", $html );
+                $html = preg_replace( '#</(p|div|tr|table|h[1-6]|li|ul|ol|blockquote)>#i', "\n", $html );
+                $text = html_entity_decode( wp_strip_all_tags( $html ), ENT_QUOTES, 'UTF-8' );
+                $text = implode( "\n", array_map( 'trim', explode( "\n", str_replace( "\r", '', $text ) ) ) );
+                return trim( preg_replace( "/\n{3,}/", "\n\n", $text ) );
+        }
+
+        /**
+         * Full view of one logged email, laid out like a mail client: who it was from and to,
+         * the message (preview, HTML source or text) and, alongside, how it was delivered.
+         * HTML messages render in a sandboxed frame with scripts and forms off.
+         *
+         * @param int $id Log row ID.
+         */
+        private function render_email_view( $id ) {
+                $row  = $id ? $this->db->get_email_log_row( $id ) : null;
+                $back = admin_url( 'options-general.php?page=bcs-smtp-manager#email-log' );
+                ?>
+                <div class="bcs-smtp-wrap wrap bcs-smtp-mailview">
+                        <a class="bcs-smtp-back" href="<?php echo esc_url( $back ); ?>"><span class="dashicons dashicons-arrow-left-alt2" aria-hidden="true"></span><?php esc_html_e( 'Email log', 'bcs-smtp-manager' ); ?></a>
+                <?php
+                if ( ! $row ) {
+                        ?>
+                        <div class="bcs-smtp-panel bcs-smtp-mailview-missing">
+                                <h1><?php esc_html_e( 'This email isn’t in the log', 'bcs-smtp-manager' ); ?></h1>
+                                <p><?php esc_html_e( 'It may be more than 90 days old, or the log was cleared.', 'bcs-smtp-manager' ); ?></p>
+                        </div>
+                </div>
+                        <?php
+                        return;
+                }
+
+                $subject = $row['subject'] ? $row['subject'] : __( '(no subject)', 'bcs-smtp-manager' );
+                $headers = $row['mail_headers'] ? (array) json_decode( $row['mail_headers'], true ) : array();
+                $files   = $row['attachments'] ? (array) json_decode( $row['attachments'], true ) : array();
+                $named   = array();
+                foreach ( $headers as $header ) {
+                        list( $name, $value ) = array_pad( explode( ':', (string) $header, 2 ), 2, '' );
+                        $key = strtolower( trim( $name ) );
+                        if ( in_array( $key, array( 'from', 'cc', 'bcc', 'reply-to' ), true ) ) {
+                                $named[ $key ][] = trim( $value );
+                        }
+                }
+                $has_body = isset( $row['body'] ) && '' !== (string) $row['body'];
+                $is_html  = 'html' === $row['body_format'];
+                $adjacent = $this->db->get_adjacent_log_ids( (int) $row['id'] );
+                // sent_at is stored in site-local time.
+                $sent     = mysql2date( get_option( 'date_format', 'F j, Y' ) . ' ' . get_option( 'time_format', 'g:i a' ), $row['sent_at'] );
+
+                // "Name <address>" → name and address, for the sender line.
+                $from       = (string) $row['from_address'];
+                $from_email = preg_match( '/<([^>]+)>/', $from, $m ) ? $m[1] : $from;
+                $from_name  = trim( preg_replace( '/<[^>]*>/', '', $from ), " \"'" );
+                $from_name  = '' !== $from_name && $from_name !== $from_email ? $from_name : '';
+                $initial    = strtoupper( function_exists( 'mb_substr' ) ? mb_substr( $from_name ? $from_name : $from_email, 0, 1 ) : substr( $from_name ? $from_name : $from_email, 0, 1 ) );
+
+                // The address the sending code asked for, when the mail server sent as someone else.
+                $requested = isset( $named['from'] ) ? $named['from'][0] : '';
+                if ( $requested && false !== stripos( $from, preg_match( '/<([^>]+)>/', $requested, $rm ) ? $rm[1] : $requested ) ) {
+                        $requested = '';
+                }
+
+                $recipients = array(
+                        __( 'to', 'bcs-smtp-manager' )       => $row['to_address'],
+                        __( 'cc', 'bcs-smtp-manager' )       => isset( $named['cc'] ) ? implode( ', ', $named['cc'] ) : '',
+                        __( 'bcc', 'bcs-smtp-manager' )      => isset( $named['bcc'] ) ? implode( ', ', $named['bcc'] ) : '',
+                        __( 'reply to', 'bcs-smtp-manager' ) => isset( $named['reply-to'] ) ? implode( ', ', $named['reply-to'] ) : '',
+                );
+                $explain = array(
+                        'success'     => __( 'Your mail server accepted this email for delivery.', 'bcs-smtp-manager' ),
+                        'failed'      => __( 'This email was not sent. The server’s reply above says why.', 'bcs-smtp-manager' ),
+                        'unconfirmed' => __( 'WordPress handed this email over, but the server didn’t confirm it.', 'bcs-smtp-manager' ),
+                );
+                ?>
+                        <header class="bcs-smtp-mailview-head">
+                                <div class="bcs-smtp-mailview-title">
+                                        <p class="bcs-smtp-mailview-when"><?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?><span><?php echo esc_html( $sent ); ?></span></p>
+                                        <h1><?php echo esc_html( $subject ); ?></h1>
+                                </div>
+                                <nav class="bcs-smtp-mailview-nav" aria-label="<?php esc_attr_e( 'Other emails', 'bcs-smtp-manager' ); ?>">
+                                        <?php
+                                        $steps = array(
+                                                'newer' => array( __( 'Newer', 'bcs-smtp-manager' ), 'arrow-left-alt2' ),
+                                                'older' => array( __( 'Older', 'bcs-smtp-manager' ), 'arrow-right-alt2' ),
+                                        );
+                                        foreach ( $steps as $dir => $step ) :
+                                                $icon  = '<span class="dashicons dashicons-' . esc_attr( $step[1] ) . '" aria-hidden="true"></span>';
+                                                $label = 'newer' === $dir ? $icon . esc_html( $step[0] ) : esc_html( $step[0] ) . $icon;
+                                                if ( $adjacent[ $dir ] ) :
+                                                        ?>
+                                                        <a class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" href="<?php echo esc_url( $this->email_view_url( $adjacent[ $dir ] ) ); ?>"><?php echo $label; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- built from escaped parts. ?></a>
+                                                <?php else : ?>
+                                                        <span class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm is-disabled" aria-disabled="true"><?php echo $label; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- built from escaped parts. ?></span>
+                                                        <?php
+                                                endif;
+                                        endforeach;
+                                        ?>
+                                </nav>
+                        </header>
+
+                        <?php if ( ! empty( $row['error_msg'] ) ) : ?>
+                                <div class="bcs-smtp-log-error bcs-smtp-mailview-error">
+                                        <div class="bcs-smtp-log-error-head">
+                                                <span><?php esc_html_e( 'Server reply', 'bcs-smtp-manager' ); ?></span>
+                                                <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                        </div>
+                                        <pre class="bcs-smtp-mono"><?php echo esc_html( $row['error_msg'] ); ?></pre>
+                                </div>
+                        <?php endif; ?>
+
+                        <div class="bcs-smtp-mailview-grid">
+                                <section class="bcs-smtp-panel bcs-smtp-mailview-message" aria-label="<?php esc_attr_e( 'Message', 'bcs-smtp-manager' ); ?>">
+                                        <div class="bcs-smtp-envelope">
+                                                <span class="bcs-smtp-envelope-avatar" aria-hidden="true"><?php echo esc_html( $initial ); ?></span>
+                                                <div class="bcs-smtp-envelope-lines">
+                                                        <p class="bcs-smtp-envelope-from">
+                                                                <?php if ( $from_name ) : ?>
+                                                                        <strong><?php echo esc_html( $from_name ); ?></strong>
+                                                                        <span>&lt;<?php echo esc_html( $from_email ); ?>&gt;</span>
+                                                                <?php else : ?>
+                                                                        <strong><?php echo esc_html( $from_email ); ?></strong>
+                                                                <?php endif; ?>
+                                                        </p>
+                                                        <?php foreach ( $recipients as $label => $value ) : ?>
+                                                                <?php if ( '' !== trim( (string) $value ) ) : ?>
+                                                                        <p class="bcs-smtp-envelope-to"><span><?php echo esc_html( $label ); ?></span> <?php echo esc_html( $value ); ?></p>
+                                                                <?php endif; ?>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                        </div>
+
+                                        <?php if ( $has_body ) : ?>
+                                                <div class="bcs-smtp-mailview-toolbar">
+                                                        <div class="bcs-smtp-segmented" role="radiogroup" aria-label="<?php esc_attr_e( 'Show the message as', 'bcs-smtp-manager' ); ?>">
+                                                                <?php if ( $is_html ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_mailview_mode" value="preview" checked><span><?php esc_html_e( 'Preview', 'bcs-smtp-manager' ); ?></span></label>
+                                                                        <label><input type="radio" name="bcs_smtp_mailview_mode" value="source"><span><?php esc_html_e( 'HTML', 'bcs-smtp-manager' ); ?></span></label>
+                                                                <?php endif; ?>
+                                                                <label><input type="radio" name="bcs_smtp_mailview_mode" value="text" <?php checked( ! $is_html ); ?>><span><?php esc_html_e( 'Text', 'bcs-smtp-manager' ); ?></span></label>
+                                                        </div>
+                                                        <?php if ( $is_html ) : ?>
+                                                                <div class="bcs-smtp-segmented bcs-smtp-device" role="radiogroup" aria-label="<?php esc_attr_e( 'Preview width', 'bcs-smtp-manager' ); ?>" data-mode="preview">
+                                                                        <label title="<?php esc_attr_e( 'Desktop', 'bcs-smtp-manager' ); ?>"><input type="radio" name="bcs_smtp_mailview_device" value="desktop" checked><span><svg class="bcs-smtp-device-icon" viewBox="0 0 20 20" aria-hidden="true" focusable="false"><rect x="2.5" y="3.5" width="15" height="10" rx="1.5"/><path d="M7 17h6M10 13.5V17"/></svg><span class="screen-reader-text"><?php esc_html_e( 'Desktop', 'bcs-smtp-manager' ); ?></span></span></label>
+                                                                        <label title="<?php esc_attr_e( 'Mobile', 'bcs-smtp-manager' ); ?>"><input type="radio" name="bcs_smtp_mailview_device" value="mobile"><span><svg class="bcs-smtp-device-icon" viewBox="0 0 20 20" aria-hidden="true" focusable="false"><rect x="6" y="2.5" width="8" height="15" rx="1.8"/><path d="M9 15h2"/></svg><span class="screen-reader-text"><?php esc_html_e( 'Mobile', 'bcs-smtp-manager' ); ?></span></span></label>
+                                                                </div>
+                                                        <?php endif; ?>
+                                                </div>
+                                        <?php endif; ?>
+
+                                        <div class="bcs-smtp-mailview-body">
+                                                <?php if ( $has_body && $is_html ) : ?>
+                                                        <div class="bcs-smtp-mailframe-stage" data-mode="preview">
+                                                                <div class="bcs-smtp-mailframe-wrap">
+                                                                        <?php // Full encoding (double_encode on) keeps entities in the email exactly as sent. ?>
+                                                                        <iframe class="bcs-smtp-mailframe" scrolling="no" title="<?php esc_attr_e( 'Email preview', 'bcs-smtp-manager' ); ?>" sandbox="allow-same-origin allow-popups allow-popups-to-escape-sandbox" referrerpolicy="no-referrer" srcdoc="<?php echo htmlspecialchars( '<base target="_blank">' . $row['body'], ENT_QUOTES, 'UTF-8', true ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- fully encoded for the attribute. ?>"></iframe>
+                                                                </div>
+                                                        </div>
+                                                        <div class="bcs-smtp-mailview-source" data-mode="source" hidden>
+                                                                <div class="bcs-smtp-mailview-source-head">
+                                                                        <span><?php esc_html_e( 'HTML source', 'bcs-smtp-manager' ); ?></span>
+                                                                        <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                                                </div>
+                                                                <pre class="bcs-smtp-mono"><?php echo esc_html( $row['body'] ); ?></pre>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( $has_body ) : ?>
+                                                        <div class="bcs-smtp-mailview-source bcs-smtp-mailview-plain" data-mode="text" <?php echo $is_html ? 'hidden' : ''; ?>>
+                                                                <div class="bcs-smtp-mailview-source-head">
+                                                                        <span><?php echo $is_html ? esc_html__( 'Text version', 'bcs-smtp-manager' ) : esc_html__( 'Plain text', 'bcs-smtp-manager' ); ?></span>
+                                                                        <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                                                </div>
+                                                                <pre><?php echo esc_html( $is_html ? $this->email_text_version( $row['body'] ) : $row['body'] ); ?></pre>
+                                                        </div>
+                                                <?php else : ?>
+                                                        <div class="bcs-smtp-mailview-empty">
+                                                                <span class="dashicons dashicons-hidden" aria-hidden="true"></span>
+                                                                <strong><?php esc_html_e( 'The message wasn’t saved', 'bcs-smtp-manager' ); ?></strong>
+                                                                <p><?php esc_html_e( 'This email was sent before the log started keeping message content.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                <?php endif; ?>
+                                        </div>
+                                </section>
+
+                                <aside class="bcs-smtp-panel bcs-smtp-mailview-meta" aria-labelledby="bcs-smtp-mailview-meta-title">
+                                        <h2 id="bcs-smtp-mailview-meta-title"><?php esc_html_e( 'Delivery', 'bcs-smtp-manager' ); ?></h2>
+                                        <div class="bcs-smtp-mailview-verdict bcs-smtp-mailview-verdict--<?php echo esc_attr( $row['status'] ); ?>">
+                                                <?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?>
+                                                <p><?php echo esc_html( isset( $explain[ $row['status'] ] ) ? $explain[ $row['status'] ] : '' ); ?></p>
+                                        </div>
+                                        <dl class="bcs-smtp-mailview-facts">
+                                                <div><dt><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd><?php echo esc_html( $sent ); ?></dd></div>
+                                                <?php if ( $requested ) : ?>
+                                                        <div>
+                                                                <dt><?php esc_html_e( 'Requested sender', 'bcs-smtp-manager' ); ?></dt>
+                                                                <dd class="bcs-smtp-mono"><?php echo esc_html( $requested ); ?></dd>
+                                                                <dd class="bcs-smtp-mailview-note"><?php esc_html_e( 'Your mail server sent it from your connected address instead.', 'bcs-smtp-manager' ); ?></dd>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( $has_body ) : ?>
+                                                        <div>
+                                                                <dt><?php esc_html_e( 'Format', 'bcs-smtp-manager' ); ?></dt>
+                                                                <dd>
+                                                                        <?php
+                                                                        /* translators: 1: HTML or Plain text, 2: size such as "8 KB". */
+                                                                        printf( esc_html__( '%1$s · %2$s', 'bcs-smtp-manager' ), $is_html ? esc_html__( 'HTML', 'bcs-smtp-manager' ) : esc_html__( 'Plain text', 'bcs-smtp-manager' ), esc_html( size_format( strlen( $row['body'] ) ) ) );
+                                                                        ?>
+                                                                </dd>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( ! empty( $row['provider'] ) ) : ?>
+                                                        <div><dt><?php esc_html_e( 'Provider', 'bcs-smtp-manager' ); ?></dt><dd><?php echo esc_html( $row['provider'] ); ?></dd></div>
+                                                <?php endif; ?>
+                                                <?php if ( ! empty( $row['message_id'] ) ) : ?>
+                                                        <div><dt><?php esc_html_e( 'Tracking ID', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $row['message_id'] ); ?></dd></div>
+                                                <?php endif; ?>
+                                        </dl>
+
+                                        <?php if ( $files ) : ?>
+                                                <h3><?php esc_html_e( 'Attachments', 'bcs-smtp-manager' ); ?></h3>
+                                                <ul class="bcs-smtp-mailview-atts">
+                                                        <?php foreach ( $files as $file ) : ?>
+                                                                <li><span class="dashicons dashicons-media-default" aria-hidden="true"></span><?php echo esc_html( $file ); ?></li>
+                                                        <?php endforeach; ?>
+                                                </ul>
+                                                <p class="bcs-smtp-hint"><?php esc_html_e( 'File names only. The files themselves aren’t stored.', 'bcs-smtp-manager' ); ?></p>
+                                        <?php endif; ?>
+
+                                        <?php if ( $headers ) : ?>
+                                                <details class="bcs-smtp-mailview-headers">
+                                                        <summary>
+                                                                <?php
+                                                                /* translators: %d: number of email headers. */
+                                                                printf( esc_html( _n( 'All headers (%d)', 'All headers (%d)', count( $headers ), 'bcs-smtp-manager' ) ), (int) count( $headers ) );
+                                                                ?>
+                                                        </summary>
+                                                        <pre class="bcs-smtp-mono"><?php echo esc_html( implode( "\n", $headers ) ); ?></pre>
+                                                </details>
+                                        <?php endif; ?>
+                                </aside>
+                        </div>
+                </div>
+                <?php
+        }
+
         private function render_email_log_row( $row ) {
-                $status_map = array(
-                        'success'     => array( 'class' => 'bcs-smtp-badge-success', 'label' => __( '✓ Sent', 'bcs-smtp-manager' ) ),
-                        'failed'      => array( 'class' => 'bcs-smtp-badge-error',   'label' => __( '✗ Failed', 'bcs-smtp-manager' ) ),
-                        'unconfirmed' => array( 'class' => 'bcs-smtp-badge-warning', 'label' => __( '? Unconfirmed', 'bcs-smtp-manager' ) ),
-                );
-                $st = isset( $status_map[ $row['status'] ] ) ? $status_map[ $row['status'] ] : array( 'class' => '', 'label' => esc_html( $row['status'] ) );
-
-                $is_failed    = 'failed' === $row['status'];
-                $has_body     = ! empty( $row['body'] );
-                $resend_count = isset( $row['resend_count'] ) ? (int) $row['resend_count'] : 0;
+                $is_failed = 'failed' === $row['status'];
+                $subject   = $row['subject'] ? $row['subject'] : __( '(no subject)', 'bcs-smtp-manager' );
+                // sent_at is stored in site-local time.
+                $time      = mysql2date( get_option( 'time_format', 'g:i a' ), $row['sent_at'] );
                 ?>
-                <tr>
-                        <td style="font-size:11px;white-space:nowrap;font-family:monospace"><?php echo esc_html( wp_date( 'M j, Y g:i A', strtotime( $row['sent_at'] ) ) ); ?></td>
-                        <td style="max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap" title="<?php echo esc_attr( $row['subject'] ); ?>"><?php echo esc_html( $row['subject'] ?: __( '(no subject)', 'bcs-smtp-manager' ) ); ?></td>
-                        <td style="font-size:11px;font-family:monospace;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap"><?php echo esc_html( $row['from_address'] ); ?></td>
-                        <td style="font-size:11px;font-family:monospace;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap"><?php echo esc_html( $row['to_address'] ); ?></td>
-                        <td><span class="bcs-smtp-badge <?php echo esc_attr( $st['class'] ); ?>"><?php echo esc_html( $st['label'] ); ?></span></td>
-                        <td style="font-size:10px;color:var(--bcs-smtp-text-3);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap" title="<?php echo esc_attr( $row['error_msg'] ); ?>"><?php echo esc_html( $row['error_msg'] ?: '—' ); ?></td>
-                        <td style="white-space:nowrap">
-                                <?php if ( $is_failed ) : ?>
-                                        <button type="button"
-                                                class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-resend-btn"
-                                                data-log-id="<?php echo esc_attr( $row['id'] ); ?>"
-                                                <?php echo $has_body ? '' : 'disabled title="' . esc_attr__( 'No stored content — enable "Store failed email content" in the Config tab before this failure occurred.', 'bcs-smtp-manager' ) . '"'; ?>>
-                                                <span class="dashicons dashicons-controls-repeat"></span><?php esc_html_e( 'Resend', 'bcs-smtp-manager' ); ?>
-                                        </button>
-                                        <?php if ( $resend_count > 0 ) : ?>
-                                                <div style="font-size:10px;color:var(--bcs-smtp-text-3);margin-top:4px">
-                                                        <?php
-                                                        printf(
-                                                                /* translators: %d: number of times this email has been resent. */
-                                                                esc_html( _n( 'Resent %d time', 'Resent %d times', $resend_count, 'bcs-smtp-manager' ) ),
-                                                                esc_html( $resend_count )
-                                                        );
-                                                        ?>
-                                                </div>
-                                        <?php endif; ?>
-                                <?php else : ?>
-                                        <span style="color:var(--bcs-smtp-text-3)">—</span>
-                                <?php endif; ?>
+                <tr class="<?php echo $is_failed ? 'is-failed' : ''; ?>">
+                        <td class="bcs-smtp-col-date bcs-smtp-mono"><?php echo esc_html( $time ); ?></td>
+                        <td class="bcs-smtp-col-subject">
+                                <span class="bcs-smtp-cell-main"><?php echo esc_html( $subject ); ?></span>
+                                <span class="bcs-smtp-cell-to bcs-smtp-mono" aria-hidden="true"><?php echo esc_html( $row['to_address'] ); ?></span>
+                        </td>
+                        <td class="bcs-smtp-col-to bcs-smtp-mono"><?php echo esc_html( $row['to_address'] ); ?></td>
+                        <td class="bcs-smtp-col-status"><?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?></td>
+                        <td class="bcs-smtp-col-more">
+                                <a class="bcs-smtp-view-btn" href="<?php echo esc_url( $this->email_view_url( (int) $row['id'] ) ); ?>">
+                                        <?php esc_html_e( 'View', 'bcs-smtp-manager' ); ?>
+                                        <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                        <span class="screen-reader-text">
+                                                <?php
+                                                /* translators: %s: email subject. */
+                                                printf( esc_html__( 'email: %s', 'bcs-smtp-manager' ), esc_html( $subject ) );
+                                                ?>
+                                        </span>
+                                </a>
                         </td>
                 </tr>
@@ -939 +1582 @@
         }
 
+        /**
+         * Overview health banner. Reads the saved state every time, so it can be re-rendered
+         * over AJAX after a save, test or health check and never shows a stale verdict.
+         */
+        public function render_health_banner() {
+                $smtp_host    = get_option( 'bcs_smtp_host', '' );
+                $is_first_run = '' === trim( (string) $smtp_host );
+                $smtp_enabled = (bool) get_option( 'bcs_smtp_enabled', false );
+                $smtp_auth    = (bool) get_option( 'bcs_smtp_auth', true );
+                $smtp_port    = (int) get_option( 'bcs_smtp_port', 587 );
+                $from_email   = get_option( 'bcs_from_email', get_option( 'admin_email' ) );
+                $monitor_on   = BCS_SMTP_Monitor::is_active();
+                $last_check   = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
+                $last_success = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $failures     = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $next_check   = $monitor_on ? wp_next_scheduled( 'bcs_smtp_health_check' ) : false;
+                $alert_on     = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+                $alert_chs    = BCS_SMTP_Monitor::get_channels();
+                $ch_labels    = array(
+                        'slack'       => __( 'Slack', 'bcs-smtp-manager' ),
+                        'teams'       => __( 'Microsoft Teams', 'bcs-smtp-manager' ),
+                        'google_chat' => __( 'Google Chat', 'bcs-smtp-manager' ),
+                        'discord'     => __( 'Discord', 'bcs-smtp-manager' ),
+                        'custom'      => __( 'Custom webhook', 'bcs-smtp-manager' ),
+                );
+
+                if ( ! $smtp_enabled || $is_first_run ) {
+                        $health = array( 'tone' => 'off', 'title' => __( 'WordPress is not using SMTP yet', 'bcs-smtp-manager' ), 'text' => __( 'Emails go out through PHP mail(), which inboxes often reject. Connect a mail server to fix that.', 'bcs-smtp-manager' ) );
+                } elseif ( null === $last_success ) {
+                        $health = array( 'tone' => 'warn', 'title' => __( 'Connection not checked yet', 'bcs-smtp-manager' ), 'text' => __( 'Run a health check to confirm WordPress can send through your mail server.', 'bcs-smtp-manager' ) );
+                } elseif ( $last_success ) {
+                        $health = array( 'tone' => 'ok', 'title' => __( 'Mail is flowing', 'bcs-smtp-manager' ), 'text' => $smtp_auth ? __( 'WordPress signed in to your mail server and it agreed to send on the last check.', 'bcs-smtp-manager' ) : __( 'Your mail server agreed to send without signing in on the last check.', 'bcs-smtp-manager' ) );
+                } else {
+                        $health = array(
+                                'tone'  => 'bad',
+                                'title' => __( 'Mail is not getting through', 'bcs-smtp-manager' ),
+                                /* translators: %d: number of consecutive failed health checks. */
+                                'text'  => sprintf( _n( 'The last health check failed (%d in a row). Check your sign-in details on the Connection tab.', 'The last health checks failed (%d in a row). Check your sign-in details on the Connection tab.', max( 1, $failures ), 'bcs-smtp-manager' ), max( 1, $failures ) ),
+                        );
+                }
+                ?>
+                <section class="bcs-smtp-hero bcs-smtp-hero--<?php echo esc_attr( $health['tone'] ); ?>" aria-labelledby="bcs-smtp-hero-title">
+                        <div class="bcs-smtp-hero-main">
+                                <span class="bcs-smtp-beacon" aria-hidden="true"><span></span></span>
+                                <div class="bcs-smtp-hero-copy">
+                                        <h2 id="bcs-smtp-hero-title"><?php echo esc_html( $health['title'] ); ?></h2>
+                                        <p><?php echo esc_html( $health['text'] ); ?></p>
+                                </div>
+                                <div class="bcs-smtp-hero-actions">
+                                        <?php if ( 'ok' !== $health['tone'] && 'warn' !== $health['tone'] ) : ?>
+                                                <button type="button" class="bcs-smtp-btn bcs-smtp-btn-primary" data-goto="connection">
+                                                        <?php echo $is_first_run ? esc_html__( 'Set up in a minute', 'bcs-smtp-manager' ) : esc_html__( 'Fix the connection', 'bcs-smtp-manager' ); ?>
+                                                </button>
+                                        <?php endif; ?>
+                                        <?php if ( ! $is_first_run ) : ?>
+                                                <button type="button" class="bcs-smtp-btn bcs-smtp-btn-secondary" data-check-now data-msg="#bcs-smtp-overview-msg">
+                                                        <?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?>
+                                                </button>
+                                        <?php endif; ?>
+                                </div>
+                        </div>
+                        <?php if ( ! $is_first_run ) : ?>
+                        <dl class="bcs-smtp-hero-facts">
+                                <div><dt><?php esc_html_e( 'Server', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $smtp_host . ':' . $smtp_port ); ?></dd></div>
+                                <div><dt><?php esc_html_e( 'Sending as', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $from_email ? $from_email : '—' ); ?></dd></div>
+                                <div><dt><?php esc_html_e( 'Last check', 'bcs-smtp-manager' ); ?></dt><dd>
+                                        <?php
+                                        /* translators: %s: human-readable time difference, e.g. "5 mins". */
+                                        echo $last_check ? esc_html( sprintf( __( '%s ago', 'bcs-smtp-manager' ), $this->check_minutes( $last_check ) ) ) : esc_html__( 'Not yet', 'bcs-smtp-manager' );
+                                        ?>
+                                </dd></div>
+                                <div><dt><?php esc_html_e( 'Next check', 'bcs-smtp-manager' ); ?></dt><dd>
+                                        <?php
+                                        if ( ! $monitor_on ) {
+                                                esc_html_e( 'Automatic checks off', 'bcs-smtp-manager' );
+                                        } elseif ( $next_check ) {
+                                                /* translators: %s: human-readable time difference, e.g. "3 mins". */
+                                                echo esc_html( $next_check > time() ? sprintf( __( 'in %s', 'bcs-smtp-manager' ), $this->check_minutes( $next_check, true ) ) : __( 'due now', 'bcs-smtp-manager' ) );
+                                        } else {
+                                                esc_html_e( 'Scheduling…', 'bcs-smtp-manager' );
+                                        }
+                                        ?>
+                                </dd></div>
+                                <div><dt><?php esc_html_e( 'Alerts go to', 'bcs-smtp-manager' ); ?></dt><dd><?php echo ( $alert_on && $alert_chs ) ? esc_html( BCS_SMTP_Monitor::channel_list_label( $alert_chs ) ) : esc_html__( 'Nowhere yet', 'bcs-smtp-manager' ); ?></dd></div>
+                        </dl>
+                        <?php endif; ?>
+                </section>
+                <?php
+        }
+
+        /**
+         * AJAX — return the freshly rendered health banner.
+         */
+        public function ajax_get_health_banner() {
+                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
+                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
+                ob_start();
+                $this->render_health_banner();
+                wp_send_json_success( array( 'html' => ob_get_clean() ) );
+        }
+
+        /**
+         * The site's own addresses, left out of "People reached" so it counts visitors and
+         * customers only: admin email and administrators, the sending address, report recipients,
+         * Contact Form 7 notification ("Mail") recipients, and anyone on the sending domain.
+         *
+         * @return array { 0: string[] addresses, 1: string[] domains }
+         */
+        private function internal_recipients() {
+                $emails   = array( get_option( 'admin_email' ), get_option( 'bcs_from_email', '' ) );
+                $emails   = array_merge( $emails, explode( ',', (string) get_option( 'bcs_report_emails', '' ) ) );
+                $emails   = array_merge( $emails, wp_list_pluck( get_users( array( 'role' => 'administrator', 'fields' => array( 'user_email' ) ) ), 'user_email' ) );
+
+                if ( class_exists( 'WPCF7_ContactForm' ) ) {
+                        foreach ( WPCF7_ContactForm::find() as $form ) {
+                                $mail = $form->prop( 'mail' );
+                                if ( ! empty( $mail['recipient'] ) ) {
+                                        $to = str_replace( '[_site_admin_email]', get_option( 'admin_email' ), $mail['recipient'] );
+                                        // Form-field tags like [your-email] are the visitor, not the team.
+                                        $emails = array_merge( $emails, explode( ',', preg_replace( '/\[[^\]]*\]/', '', $to ) ) );
+                                }
+                        }
+                }
+
+                $emails  = array_values( array_unique( array_filter( array_map( 'strtolower', array_map( 'trim', $emails ) ), 'is_email' ) ) );
+                $from    = strtolower( (string) get_option( 'bcs_from_email', '' ) );
+                $domains = ( is_email( $from ) && false !== strpos( $from, '@' ) ) ? array( substr( strrchr( $from, '@' ), 1 ) ) : array();
+
+                return apply_filters( 'bcs_smtp_internal_recipients', array( $emails, $domains ) );
+        }
+
         /* ═══════════════════════════════════════════════════════════════════
            PAGE RENDER
@@ -946 +1720 @@
                 if ( ! current_user_can( 'manage_options' ) ) { return; }
 
-                $info          = $this->mailer->detect_smtp_plugin();
+                // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only view, capability checked above.
+                if ( isset( $_GET['email'] ) ) {
+                        $this->render_email_view( absint( $_GET['email'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                        return;
+                }
+
 
                 // SMTP settings
+                $smtp_host     = get_option( 'bcs_smtp_host', '' );
+                $is_first_run  = '' === trim( $smtp_host );
                 $smtp_enabled  = (bool) get_option( 'bcs_smtp_enabled', false );
                 $from_email    = get_option( 'bcs_from_email', get_option( 'admin_email' ) );
                 $from_name     = get_option( 'bcs_from_name',  get_option( 'blogname' ) );
-                $smtp_host     = get_option( 'bcs_smtp_host', '' );
                 $smtp_port     = (int) get_option( 'bcs_smtp_port', 587 );
                 $smtp_enc      = get_option( 'bcs_smtp_encryption', 'tls' );
@@ -958 +1738 @@
                 $smtp_auth     = (bool) get_option( 'bcs_smtp_auth', true );
                 $smtp_user     = get_option( 'bcs_smtp_username', '' );
+                $has_pw        = ! empty( get_option( 'bcs_smtp_password', '' ) );
+                $pw_unreadable = $has_pw && $this->mailer->is_password_unreadable();
+                $presets       = $this->provider_presets();
+                $provider      = $this->detect_provider( $smtp_host );
+                $preset        = $provider ? $presets[ $provider ] : $presets['other'];
 
                 // Monitor settings
-                $monitor_on    = (bool) get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false );
-                $check_interval = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-                $threshold     = (int) get_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, 2 );
-                $last_check    = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
-                $last_success  = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $monitor_on     = BCS_SMTP_Monitor::is_active();
+                $last_check     = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
+                $last_success   = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $failures       = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $next_check     = $monitor_on ? wp_next_scheduled( 'bcs_smtp_health_check' ) : false;
 
                 // Alert settings
-                $alert_enabled = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
-                $alert_channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-
-                // Summary for stat row
-                $smtp_status   = is_null( $last_success ) ? 'unknown' : ( $last_success ? 'ok' : 'fail' );
-
-                // Report defaults (30-day)
-                $summary_30d   = $this->db->get_email_summary( '30days' );
+                $alert_enabled  = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+                $alert_chs      = BCS_SMTP_Monitor::get_channels();
+                $channels       = array(
+                        'slack'       => array( 'label' => __( 'Slack', 'bcs-smtp-manager' ),          'short' => 'S' ),
+                        'teams'       => array( 'label' => __( 'Microsoft Teams', 'bcs-smtp-manager' ), 'short' => 'T' ),
+                        'google_chat' => array( 'label' => __( 'Google Chat', 'bcs-smtp-manager' ),     'short' => 'GC' ),
+                        'discord'     => array( 'label' => __( 'Discord', 'bcs-smtp-manager' ),         'short' => 'D' ),
+                        'custom'      => array( 'label' => __( 'Custom webhook', 'bcs-smtp-manager' ),  'short' => '{ }' ),
+                );
+
+                // Overview data
+                $summary_30d  = $this->db->get_email_summary( '30days' );
+                $rate         = $summary_30d['total'] > 0 ? round( ( $summary_30d['success'] / $summary_30d['total'] ) * 100, 1 ) : null;
+                $chart        = $this->db->get_email_chart_data( '30days' );
 
                 // Scheduled report settings
                 $report_schedule_enabled = (bool) get_option( 'bcs_report_schedule_enabled', false );
                 $report_emails           = get_option( 'bcs_report_emails', '' );
-                $report_frequency        = get_option( 'bcs_report_frequency', 'weekly' );
-
-                // Resend settings
-                $store_failed_body     = (bool) get_option( BCS_SMTP_OPT_STORE_FAILED_BODY, false );
-                $failed_body_retention = (int) get_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
+
+
+                $setup_items = array(
+                        array( 'done' => $smtp_enabled && ! $is_first_run, 'label' => __( 'Connect your mail server', 'bcs-smtp-manager' ), 'goto' => 'connection' ),
+                        array( 'done' => $alert_enabled && $alert_chs, 'label' => __( 'Choose where failure alerts go', 'bcs-smtp-manager' ), 'goto' => 'alerts' ),
+                        array( 'done' => $report_schedule_enabled,          'label' => __( 'Get a delivery report by email', 'bcs-smtp-manager' ), 'goto' => 'reports' ),
+                );
+                $setup_left = count( array_filter( $setup_items, function ( $i ) { return ! $i['done']; } ) );
+
+                $tabs = array(
+                        'overview'   => __( 'Overview', 'bcs-smtp-manager' ),
+                        'connection' => __( 'Connection', 'bcs-smtp-manager' ),
+                        'alerts'     => __( 'Alerts', 'bcs-smtp-manager' ),
+                        'reports'    => __( 'Reports', 'bcs-smtp-manager' ),
+                        'email-log'  => __( 'Email log', 'bcs-smtp-manager' ),
+                );
+                $date_ranges = array(
+                        'today'      => __( 'Today', 'bcs-smtp-manager' ),
+                        'yesterday'  => __( 'Yesterday', 'bcs-smtp-manager' ),
+                        '7days'      => __( 'Last 7 days', 'bcs-smtp-manager' ),
+                        '30days'     => __( 'Last 30 days', 'bcs-smtp-manager' ),
+                        'this_week'  => __( 'This week', 'bcs-smtp-manager' ),
+                        'last_week'  => __( 'Last week', 'bcs-smtp-manager' ),
+                        'this_month' => __( 'This month', 'bcs-smtp-manager' ),
+                        '3months'    => __( 'Last 3 months', 'bcs-smtp-manager' ),
+                );
+                $time_fmt = get_option( 'time_format', 'g:i a' );
                 ?>
-                <div class="bcs-smtp-wrap wrap">
-
-                        <!-- ═══ HEADER ═══════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-header">
-                                <div class="bcs-smtp-header-left">
-                                        <div class="bcs-smtp-header-icon">
-                                                <span class="dashicons dashicons-email-alt"></span>
-                                        </div>
+                <div class="bcs-smtp-wrap wrap" data-first-run="<?php echo $is_first_run ? '1' : '0'; ?>">
+
+                        <header class="bcs-smtp-header">
+                                <div class="bcs-smtp-brand">
+                                        <span class="bcs-smtp-brand-mark" aria-hidden="true">
+                                                <svg viewBox="0 0 24 24" focusable="false"><rect x="3.5" y="6" width="17" height="12.5" rx="2.5"/><path d="m4.5 7.5 7.5 5.75 7.5-5.75"/></svg>
+                                        </span>
                                         <div>
-                                                <h1><?php esc_html_e( 'ByteCoreStack - SMTP & Health Monitor', 'bcs-smtp-manager' ); ?></h1>
-                                                <p class="bcs-smtp-header-sub"><?php esc_html_e( 'WordPress email monitoring & alerting by ByteCore Stack', 'bcs-smtp-manager' ); ?></p>
+                                                <h1><?php esc_html_e( 'SMTP & Health Monitor', 'bcs-smtp-manager' ); ?></h1>
+                                                <p class="bcs-smtp-header-sub">
+                                                        <?php echo esc_html( wp_parse_url( home_url(), PHP_URL_HOST ) ); ?>
+                                                        <span aria-hidden="true">·</span>
+                                                        <?php
+                                                        /* translators: %s: plugin version number. */
+                                                        printf( esc_html__( 'ByteCoreStack · v%s', 'bcs-smtp-manager' ), esc_html( BCS_SMTP_VERSION ) );
+                                                        ?>
+                                                </p>
                                         </div>
                                 </div>
-                                <div class="bcs-smtp-header-right">
-                                        <span class="bcs-smtp-header-badge">v<?php echo esc_html( BCS_SMTP_VERSION ); ?></span>
+                                <div class="bcs-smtp-header-actions">
+                                        <button type="button" class="bcs-smtp-btn bcs-smtp-btn-primary" data-goto="connection" data-focus="#bcs-smtp-test-to">
+                                                <?php esc_html_e( 'Send test email', 'bcs-smtp-manager' ); ?>
+                                        </button>
                                 </div>
-                        </div>
-
-                        <!-- ═══ STAT ROW ══════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-stat-row">
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo 'ok' === $smtp_status ? 'good' : ( 'fail' === $smtp_status ? 'bad' : '' ); ?>">
-                                                <span class="dashicons dashicons-yes-alt"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo 'ok' === $smtp_status ? 'good' : ( 'fail' === $smtp_status ? 'bad' : '' ); ?>">
-                                                        <?php echo 'ok' === $smtp_status ? '✓' : ( 'fail' === $smtp_status ? '✗' : '—' ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'SMTP Status', 'bcs-smtp-manager' ); ?></div>
+                        </header>
+
+                        <nav class="bcs-smtp-tabs" role="tablist" aria-label="<?php esc_attr_e( 'SMTP Manager sections', 'bcs-smtp-manager' ); ?>">
+                                <span class="bcs-smtp-tab-pill" aria-hidden="true"></span>
+                                <?php
+                                $tab_icons = array(
+                                        'overview'   => 'dashboard',
+                                        'connection' => 'admin-plugins',
+                                        'alerts'     => 'bell',
+                                        'reports'    => 'chart-bar',
+                                        'email-log'  => 'email-alt',
+                                );
+                                foreach ( $tabs as $key => $label ) :
+                                        ?>
+                                        <button type="button" role="tab" class="bcs-smtp-tab" id="bcs-smtp-tab-<?php echo esc_attr( $key ); ?>" data-panel="<?php echo esc_attr( $key ); ?>" aria-controls="bcs-smtp-panel-<?php echo esc_attr( $key ); ?>" aria-selected="false" tabindex="-1">
+                                                <span class="dashicons dashicons-<?php echo esc_attr( $tab_icons[ $key ] ); ?>" aria-hidden="true"></span>
+                                                <?php echo esc_html( $label ); ?>
+                                                <?php if ( 'connection' === $key ) : ?>
+                                                        <span class="bcs-smtp-tab-dot" id="bcs-smtp-conn-dot" aria-hidden="true"></span>
+                                                        <span class="screen-reader-text" id="bcs-smtp-conn-dot-label"></span>
+                                                <?php endif; ?>
+                                                <?php if ( 'email-log' === $key && $summary_30d['failed'] > 0 ) : ?>
+                                                        <span class="bcs-smtp-tab-count" title="<?php esc_attr_e( 'Failed in the last 30 days', 'bcs-smtp-manager' ); ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></span>
+                                                <?php endif; ?>
+                                        </button>
+                                <?php endforeach; ?>
+                        </nav>
+
+                        <div id="bcs-smtp-toast" class="bcs-smtp-toast" role="status" aria-live="polite"></div>
+
+                        <!-- ═══ PANEL: Overview ═══════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-overview" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-overview">
+
+                                <div id="bcs-smtp-health-banner"><?php $this->render_health_banner(); ?></div>
+                                <div id="bcs-smtp-overview-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+
+
+                                <div class="bcs-smtp-overview-grid">
+                                        <section class="bcs-smtp-panel bcs-smtp-activity" aria-labelledby="bcs-smtp-activity-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-activity-title"><?php esc_html_e( 'Email activity', 'bcs-smtp-manager' ); ?></h2>
+                                                        <div class="bcs-smtp-segmented bcs-smtp-segmented--sm" role="radiogroup" aria-label="<?php esc_attr_e( 'Time range', 'bcs-smtp-manager' ); ?>">
+                                                                <?php foreach ( array( '7days' => __( '7 days', 'bcs-smtp-manager' ), '30days' => __( '30 days', 'bcs-smtp-manager' ), '3months' => __( '90 days', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_ov_range" class="bcs-smtp-ov-range" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" <?php checked( '30days', $val ); ?>><span><?php echo esc_html( $label ); ?></span></label>
+                                                                <?php endforeach; ?>
+                                                        </div>
+                                                </div>
+                                                <dl class="bcs-smtp-figures" id="bcs-smtp-ov-figures">
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--sent" aria-hidden="true"></span><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd data-fig="success"><?php echo esc_html( number_format_i18n( $summary_30d['success'] ) ); ?></dd></div>
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--bad" aria-hidden="true"></span><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></dt><dd data-fig="failed" class="<?php echo $summary_30d['failed'] > 0 ? 'is-bad' : ''; ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></dd></div>
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--warn" aria-hidden="true"></span><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></dt><dd data-fig="unconfirmed"><?php echo esc_html( number_format_i18n( $summary_30d['unconfirmed'] ) ); ?></dd></div>
+                                                        <div><dt><?php esc_html_e( 'Delivered', 'bcs-smtp-manager' ); ?></dt><dd data-fig="rate"><?php echo null === $rate ? '—' : esc_html( number_format_i18n( $rate, 1 ) ) . '<small>%</small>'; ?></dd></div>
+                                                </dl>
+                                                <div class="bcs-smtp-linechart" id="bcs-smtp-ov-chart" tabindex="0"
+                                                        role="img" aria-label="<?php esc_attr_e( 'Emails per day: sent, failed and unconfirmed. Use the left and right arrow keys to read each day.', 'bcs-smtp-manager' ); ?>"
+                                                        data-chart="<?php echo esc_attr( wp_json_encode( $chart ) ); ?>">
+                                                        <div class="bcs-smtp-linechart-tip" aria-live="polite" hidden></div>
+                                                </div>
+                                                <p class="bcs-smtp-chart-empty" id="bcs-smtp-ov-empty" <?php echo $summary_30d['total'] > 0 ? 'hidden' : ''; ?>><?php esc_html_e( 'No email was sent in this period.', 'bcs-smtp-manager' ); ?></p>
+                                                <?php if ( $summary_30d['failed'] > 0 ) : ?>
+                                                        <p class="bcs-smtp-activity-foot">
+                                                                <?php
+                                                                /* translators: %s: number of failed emails in the last 30 days. */
+                                                                printf( esc_html( _n( '%s email failed in the last 30 days.', '%s emails failed in the last 30 days.', $summary_30d['failed'], 'bcs-smtp-manager' ) ), esc_html( number_format_i18n( $summary_30d['failed'] ) ) );
+                                                                ?>
+                                                                <button type="button" class="bcs-smtp-link" data-goto="email-log" data-log-status="failed"><?php esc_html_e( 'Review failed emails', 'bcs-smtp-manager' ); ?></button>
+                                                        </p>
+                                                <?php endif; ?>
+                                        </section>
+
+                                        <div class="bcs-smtp-side">
+                                        <?php if ( $setup_left > 0 ) : ?>
+                                        <section class="bcs-smtp-panel bcs-smtp-setup-card" aria-labelledby="bcs-smtp-setup-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-setup-title"><?php esc_html_e( 'Finish setting up', 'bcs-smtp-manager' ); ?></h2>
+                                                        <span class="bcs-smtp-panel-sub">
+                                                                <?php
+                                                                /* translators: 1: completed setup steps, 2: total setup steps. */
+                                                                printf( esc_html__( '%1$d of %2$d done', 'bcs-smtp-manager' ), count( $setup_items ) - $setup_left, count( $setup_items ) );
+                                                                ?>
+                                                        </span>
+                                                </div>
+                                                <div class="bcs-smtp-progress" aria-hidden="true">
+                                                        <?php foreach ( $setup_items as $item ) : ?>
+                                                                <span class="<?php echo $item['done'] ? 'is-done' : ''; ?>"></span>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                                <ul class="bcs-smtp-checklist">
+                                                        <?php foreach ( $setup_items as $item ) : ?>
+                                                                <li class="<?php echo $item['done'] ? 'is-done' : ''; ?>">
+                                                                        <span class="bcs-smtp-check-dot dashicons <?php echo $item['done'] ? 'dashicons-yes' : ''; ?>" aria-hidden="true"></span>
+                                                                        <?php if ( $item['done'] ) : ?>
+                                                                                <span><?php echo esc_html( $item['label'] ); ?></span>
+                                                                                <span class="screen-reader-text"><?php esc_html_e( '(done)', 'bcs-smtp-manager' ); ?></span>
+                                                                        <?php else : ?>
+                                                                                <button type="button" class="bcs-smtp-link bcs-smtp-link--plain" data-goto="<?php echo esc_attr( $item['goto'] ); ?>"><?php echo esc_html( $item['label'] ); ?><span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span></button>
+                                                                        <?php endif; ?>
+                                                                </li>
+                                                        <?php endforeach; ?>
+                                                </ul>
+                                        </section>
+                                        <?php endif; ?>
+                                        <section class="bcs-smtp-panel bcs-smtp-quick" aria-labelledby="bcs-smtp-quick-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-quick-title"><?php esc_html_e( 'Quick actions', 'bcs-smtp-manager' ); ?></h2>
+                                                </div>
+                                                <ul class="bcs-smtp-quick-list">
+                                                        <li><button type="button" data-goto="connection" data-focus="#bcs-smtp-test-to">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Send a test email', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="email-log" data-log-status="failed">
+                                                                <span class="bcs-smtp-quick-icon bcs-smtp-quick-icon--bad dashicons dashicons-warning" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Review failed emails', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="alerts">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-bell" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Failure alerts', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-export-log>
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-download" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Export email log', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <?php if ( 0 === $setup_left ) : // The setup card is gone, so this card takes the whole column. ?>
+                                                        <li><button type="button" data-check-now data-msg="#bcs-smtp-overview-msg">
+                                                                <span class="bcs-smtp-quick-icon bcs-smtp-quick-icon--ok dashicons dashicons-heart" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="reports">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-chart-area" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Delivery report', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="connection">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-admin-network" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Connection settings', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <?php endif; ?>
+                                                </ul>
+                                        </section>
                                         </div>
                                 </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo $smtp_enabled ? 'good' : ''; ?>">
-                                                <span class="dashicons dashicons-admin-plugins"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo $smtp_enabled ? 'good' : ''; ?>">
-                                                        <?php echo $smtp_enabled ? esc_html__( 'On', 'bcs-smtp-manager' ) : esc_html__( 'Off', 'bcs-smtp-manager' ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'SMTP Active', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon">
-                                                <span class="dashicons dashicons-email-alt"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value" style="font-size:18px"><?php echo esc_html( number_format( $summary_30d['total'] ) ); ?></div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Emails (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon good">
-                                                <span class="dashicons dashicons-yes"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value good" style="font-size:22px"><?php echo esc_html( number_format( $summary_30d['success'] ) ); ?></div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Sent (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo $summary_30d['failed'] > 0 ? 'bad' : ( $last_check ? 'good' : '' ); ?>">
-                                                <span class="dashicons dashicons-warning"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo $summary_30d['failed'] > 0 ? 'bad' : ( $last_check ? 'good' : '' ); ?>" style="font-size:22px">
-                                                        <?php echo esc_html( number_format( $summary_30d['failed'] ) ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Failed (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══ TABS ══════════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-tabs">
-                                <button type="button" class="bcs-smtp-tab active" data-panel="settings">
-                                        <span class="dashicons dashicons-admin-settings"></span><?php esc_html_e( 'Settings', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="email-log">
-                                        <span class="dashicons dashicons-list-view"></span><?php esc_html_e( 'Email Log', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="email-report">
-                                        <span class="dashicons dashicons-chart-bar"></span><?php esc_html_e( 'Email Report', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="test">
-                                        <span class="dashicons dashicons-email"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="alerts">
-                                        <span class="dashicons dashicons-bell"></span><?php esc_html_e( 'Alerts', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="config">
-                                        <span class="dashicons dashicons-admin-generic"></span><?php esc_html_e( 'Config', 'bcs-smtp-manager' ); ?>
-                                </button>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Settings (SMTP connection)
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-settings" class="bcs-smtp-tab-panel active">
-                                <div class="bcs-smtp-grid">
-                                <div>
-                                        <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-header">
-                                                        <p class="bcs-smtp-card-title"><span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'SMTP Connection', 'bcs-smtp-manager' ); ?></p>
-                                                        <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Configure this plugin to send all WordPress emails via your SMTP server. Leave disabled to use PHP mail or another SMTP plugin.', 'bcs-smtp-manager' ); ?></p>
-                                                </div>
-                                                <div class="bcs-smtp-card-body">
-                                                        <!-- Enable toggle -->
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable SMTP', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Override WordPress default email with your SMTP settings below', 'bcs-smtp-manager' ); ?></div>
+                        </section>
+
+                        <!-- ═══ PANEL: Connection (guided setup) ══════════════════════════ -->
+                        <section id="bcs-smtp-panel-connection" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-connection">
+                                <div class="bcs-smtp-split">
+                                        <div class="bcs-smtp-panel bcs-smtp-setup">
+
+                                                <div class="bcs-smtp-setup-head">
+                                                        <span class="bcs-smtp-setup-badge dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2><label for="bcs-smtp-smtp-enabled"><?php esc_html_e( 'SMTP connection', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p><?php esc_html_e( 'Send all WordPress email through your mail server.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-smtp-enabled" role="switch" aria-controls="bcs-smtp-setup-body" <?php checked( $smtp_enabled || $is_first_run ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+
+                                                <?php $smtp_on = $smtp_enabled || $is_first_run; ?>
+                                                <div class="bcs-smtp-alerts-off bcs-smtp-smtp-off" id="bcs-smtp-smtp-off" <?php echo $smtp_on ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'SMTP is off, so WordPress sends email with PHP mail(), which often lands in spam. Turn it on to send through your mail server. Your settings are kept.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+
+                                                <div class="bcs-smtp-setup-body" id="bcs-smtp-setup-body" <?php echo $smtp_on ? '' : 'hidden'; ?>>
+                                                        <div class="bcs-smtp-field" id="bcs-smtp-step-provider">
+                                                                <span class="bcs-smtp-field-label" id="bcs-smtp-provider-label"><?php esc_html_e( 'Email provider', 'bcs-smtp-manager' ); ?></span>
+                                                                <?php
+                                                                // Once a provider is chosen, show just that choice with a Change link; the full list opens on demand.
+                                                                $picked = ( $provider && isset( $presets[ $provider ] ) ) ? $presets[ $provider ] : null;
+                                                                ?>
+                                                                <div class="bcs-smtp-provider-picked" id="bcs-smtp-provider-picked" <?php echo $picked ? '' : 'hidden'; ?>>
+                                                                        <span class="bcs-smtp-provider-mark" id="bcs-smtp-picked-mark" aria-hidden="true"></span>
+                                                                        <span class="bcs-smtp-picked-name" id="bcs-smtp-picked-name"><?php echo $picked ? esc_html( $picked['label'] ) : ''; ?></span>
+                                                                        <button type="button" class="bcs-smtp-link" id="bcs-smtp-provider-change" aria-expanded="false" aria-controls="bcs-smtp-provider-chips"><?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?></button>
                                                                 </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-smtp-enabled" <?php checked( $smtp_enabled ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
+                                                                <div class="bcs-smtp-provider-chips" id="bcs-smtp-provider-chips" role="radiogroup" aria-labelledby="bcs-smtp-provider-label" <?php echo $picked ? 'hidden' : ''; ?>>
+                                                                        <?php
+                                                                        // Each provider's own colour tints its badge, so the list scans by colour as well as name.
+                                                                        $provider_tones = array(
+                                                                                'gmail'     => '#ea4335',
+                                                                                'microsoft' => '#2b88d8',
+                                                                                'sendgrid'  => '#1a82e2',
+                                                                                'ses'       => '#ff9900',
+                                                                                'mailgun'   => '#f06b66',
+                                                                                'brevo'     => '#0fae7b',
+                                                                                'zoho'      => '#f0b400',
+                                                                                'yahoo'     => '#8f4bff',
+                                                                        );
+                                                                        $provider_short = array(
+                                                                                'gmail'     => __( 'Gmail', 'bcs-smtp-manager' ),
+                                                                                'microsoft' => __( 'Microsoft 365', 'bcs-smtp-manager' ),
+                                                                                'zoho'      => __( 'Zoho', 'bcs-smtp-manager' ),
+                                                                                'yahoo'     => __( 'Yahoo', 'bcs-smtp-manager' ),
+                                                                                'other'     => __( 'Other', 'bcs-smtp-manager' ),
+                                                                        );
+                                                                        foreach ( $presets as $key => $p ) :
+                                                                                ?>
+                                                                                <label class="bcs-smtp-provider" title="<?php echo esc_attr( $p['label'] ); ?>" style="--tone:<?php echo esc_attr( isset( $provider_tones[ $key ] ) ? $provider_tones[ $key ] : '#8a97b0' ); ?>">
+                                                                                        <input type="radio" name="bcs_smtp_provider" class="bcs-smtp-provider-radio" value="<?php echo esc_attr( $key ); ?>"
+                                                                                                data-host="<?php echo esc_attr( $p['host'] ); ?>"
+                                                                                                data-port="<?php echo esc_attr( $p['port'] ); ?>"
+                                                                                                data-enc="<?php echo esc_attr( $p['enc'] ); ?>"
+                                                                                                data-user="<?php echo esc_attr( $p['user'] ); ?>"
+                                                                                                data-user-hint="<?php echo esc_attr( $p['user_hint'] ); ?>"
+                                                                                                data-pass-label="<?php echo esc_attr( $p['pass_label'] ); ?>"
+                                                                                                data-note="<?php echo esc_attr( $p['note'] ); ?>"
+                                                                                                data-link="<?php echo esc_url( $p['link'] ); ?>"
+                                                                                                data-link-label="<?php echo esc_attr( $p['link_label'] ); ?>"
+                                                                                                <?php checked( $provider, $key ); ?>>
+                                                                                        <span class="bcs-smtp-provider-mark" aria-hidden="true"><?php echo $p['short'] ? esc_html( $p['short'] ) : '<span class="dashicons dashicons-admin-generic"></span>'; ?></span>
+                                                                                        <span class="bcs-smtp-provider-name"><?php echo esc_html( isset( $provider_short[ $key ] ) ? $provider_short[ $key ] : $p['label'] ); ?></span>
+                                                                                </label>
+                                                                        <?php endforeach; ?>
+                                                                </div>
+                                                                <p class="bcs-smtp-provider-note" id="bcs-smtp-provider-note" <?php echo $provider ? '' : 'hidden'; ?>>
+                                                                        <span class="dashicons dashicons-info-outline" aria-hidden="true"></span>
+                                                                        <span>
+                                                                                <span id="bcs-smtp-provider-note-text"><?php echo esc_html( $preset['note'] ); ?></span>
+                                                                                <a id="bcs-smtp-provider-note-link" href="<?php echo esc_url( $preset['link'] ); ?>" target="_blank" rel="noopener noreferrer" <?php echo $preset['link'] ? '' : 'hidden'; ?>><span id="bcs-smtp-provider-note-link-text"><?php echo esc_html( $preset['link_label'] ); ?></span><span class="screen-reader-text"> <?php esc_html_e( '(opens in a new tab)', 'bcs-smtp-manager' ); ?></span></a>
+                                                                        </span>
+                                                                </p>
                                                         </div>
 
-                                                        <!-- SMTP settings accordion -->
-                                                        <div id="bcs-smtp-smtp-accordion" class="bcs-smtp-accordion <?php echo $smtp_enabled ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(99,102,241,.15);color:var(--bcs-smtp-indigo)">
-                                                                                        <span class="dashicons dashicons-admin-network"></span>
+                                                        <div class="bcs-smtp-field-row">
+                                                                <div class="bcs-smtp-field">
+                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-email"><?php esc_html_e( 'From address', 'bcs-smtp-manager' ); ?></label>
+                                                                        <input type="email" id="bcs-smtp-from-email" class="bcs-smtp-input" value="<?php echo esc_attr( $from_email ); ?>" spellcheck="false">
+                                                                </div>
+                                                                <div class="bcs-smtp-field">
+                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-name"><?php esc_html_e( 'From name', 'bcs-smtp-manager' ); ?></label>
+                                                                        <input type="text" id="bcs-smtp-from-name" class="bcs-smtp-input" value="<?php echo esc_attr( $from_name ); ?>">
+                                                                </div>
+                                                        </div>
+
+                                                        <label class="bcs-smtp-inline-switch bcs-smtp-auth-switch" for="bcs-smtp-smtp-auth">
+                                                                <span class="bcs-smtp-toggle bcs-smtp-toggle--sm">
+                                                                        <input type="checkbox" id="bcs-smtp-smtp-auth" role="switch" aria-controls="bcs-smtp-auth-fields" <?php checked( $smtp_auth ); ?>>
+                                                                        <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                </span>
+                                                                <span><?php esc_html_e( 'My server needs a username and password', 'bcs-smtp-manager' ); ?></span>
+                                                        </label>
+
+                                                        <div id="bcs-smtp-auth-fields" <?php echo $smtp_auth ? '' : 'hidden'; ?>>
+                                                                <div class="bcs-smtp-field-row">
+                                                                        <div class="bcs-smtp-field">
+                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-username"><?php esc_html_e( 'Username', 'bcs-smtp-manager' ); ?></label>
+                                                                                <input type="text" id="bcs-smtp-smtp-username" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_user ); ?>" placeholder="<?php echo esc_attr( $preset['user_hint'] ); ?>" autocomplete="off" spellcheck="false" aria-describedby="bcs-smtp-user-hint">
+                                                                                <span class="screen-reader-text" id="bcs-smtp-user-hint"><?php echo esc_html( $preset['user_hint'] ); ?></span>
+                                                                        </div>
+                                                                        <div class="bcs-smtp-field">
+                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-password" id="bcs-smtp-pass-label"><?php echo esc_html( $preset['pass_label'] ); ?></label>
+                                                                                <div id="bcs-smtp-pw-display" class="bcs-smtp-pw-saved" <?php echo $has_pw ? '' : 'hidden'; ?>>
+                                                                                        <span class="bcs-smtp-pw-dots" aria-hidden="true">••••••••••••</span>
+                                                                                        <span class="screen-reader-text"><?php esc_html_e( 'A password is saved.', 'bcs-smtp-manager' ); ?></span>
+                                                                                        <button type="button" id="bcs-smtp-change-pw-btn" class="bcs-smtp-link"><?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?></button>
                                                                                 </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'SMTP Server Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Host, port, encryption & authentication', 'bcs-smtp-manager' ); ?></div>
+                                                                                <div id="bcs-smtp-pw-input" <?php echo $has_pw ? 'hidden' : ''; ?>>
+                                                                                        <div class="bcs-smtp-pw-wrap">
+                                                                                                <input type="password" id="bcs-smtp-smtp-password" class="bcs-smtp-input" value="" autocomplete="new-password" spellcheck="false" aria-describedby="bcs-smtp-pw-status">
+                                                                                                <button type="button" id="bcs-smtp-toggle-pw-btn" class="bcs-smtp-pw-eye" aria-label="<?php esc_attr_e( 'Show password', 'bcs-smtp-manager' ); ?>" aria-controls="bcs-smtp-smtp-password">
+                                                                                                        <span class="dashicons dashicons-visibility" aria-hidden="true"></span>
+                                                                                                </button>
+                                                                                        </div>
+                                                                                        <button type="button" id="bcs-smtp-cancel-pw-btn" class="bcs-smtp-link bcs-smtp-hint" hidden><?php esc_html_e( 'Keep the saved password', 'bcs-smtp-manager' ); ?></button>
+                                                                                </div>
+                                                                                <?php if ( $pw_unreadable ) : ?>
+                                                                                        <span class="bcs-smtp-hint is-bad" id="bcs-smtp-pw-status"><?php esc_html_e( 'The saved password can no longer be read because your site’s security keys changed. Click Change and enter it again.', 'bcs-smtp-manager' ); ?></span>
+                                                                                <?php else : ?>
+                                                                                        <span class="bcs-smtp-hint <?php echo $has_pw ? 'is-good' : ''; ?>" id="bcs-smtp-pw-status"></span>
+                                                                                <?php endif; ?>
+                                                                        </div>
+                                                                </div>
+                                                        </div>
+
+                                                        <div class="bcs-smtp-alert bcs-smtp-alert-warning bcs-smtp-auth-warning" id="bcs-smtp-auth-warning" role="alert" <?php echo ( ! $smtp_auth && $provider && 'other' !== $provider ) ? '' : 'hidden'; ?>>
+                                                                <span class="dashicons dashicons-warning" aria-hidden="true"></span>
+                                                                <div class="bcs-smtp-alert-content">
+                                                                        <strong id="bcs-smtp-auth-warning-title">
+                                                                                <?php
+                                                                                /* translators: %s: email provider name, e.g. Microsoft 365. */
+                                                                                printf( esc_html__( '%s needs a username and password.', 'bcs-smtp-manager' ), esc_html( isset( $provider_short[ $provider ] ) ? $provider_short[ $provider ] : $preset['label'] ) );
+                                                                                ?>
+                                                                        </strong>
+                                                                        <?php esc_html_e( 'Turn on “My server needs a username and password” above and save, or every email will be rejected.', 'bcs-smtp-manager' ); ?>
+                                                                </div>
+                                                        </div>
+
+                                                        <div class="bcs-smtp-disclosure <?php echo ( 'other' === $provider ) ? 'is-open' : ''; ?>" id="bcs-smtp-server-details">
+                                                                <button type="button" class="bcs-smtp-disclosure-head" aria-expanded="<?php echo ( 'other' === $provider ) ? 'true' : 'false'; ?>" aria-controls="bcs-smtp-server-details-body">
+                                                                        <span>
+                                                                                <strong><?php esc_html_e( 'Server details', 'bcs-smtp-manager' ); ?></strong>
+                                                                                <span class="bcs-smtp-mono" id="bcs-smtp-server-summary"><?php echo $smtp_host ? esc_html( $smtp_host . ' · ' . $smtp_port . ' · ' . strtoupper( $smtp_enc ) ) : esc_html__( 'Filled in when you pick a provider', 'bcs-smtp-manager' ); ?></span>
+                                                                        </span>
+                                                                        <span class="dashicons dashicons-arrow-down-alt2" aria-hidden="true"></span>
+                                                                </button>
+                                                                <div class="bcs-smtp-disclosure-body" id="bcs-smtp-server-details-body">
+                                                                        <div class="bcs-smtp-field-row">
+                                                                                <div class="bcs-smtp-field bcs-smtp-field--grow">
+                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-host"><?php esc_html_e( 'SMTP server', 'bcs-smtp-manager' ); ?></label>
+                                                                                        <input type="text" id="bcs-smtp-smtp-host" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( $smtp_host ); ?>" placeholder="smtp.example.com" spellcheck="false" autocomplete="off">
+                                                                                </div>
+                                                                                <div class="bcs-smtp-field bcs-smtp-field--port">
+                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-port"><?php esc_html_e( 'Port', 'bcs-smtp-manager' ); ?></label>
+                                                                                        <input type="number" id="bcs-smtp-smtp-port" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( $smtp_port ); ?>" min="1" max="65535" inputmode="numeric">
                                                                                 </div>
                                                                         </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-email"><?php esc_html_e( 'Force From Email', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="email" id="bcs-smtp-from-email" class="bcs-smtp-input" value="<?php echo esc_attr( $from_email ); ?>" placeholder="no-reply@yoursite.com">
-                                                                                </div>
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-name"><?php esc_html_e( 'Force From Name', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-from-name" class="bcs-smtp-input" value="<?php echo esc_attr( $from_name ); ?>" placeholder="Your Site Name">
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-host"><?php esc_html_e( 'SMTP Host', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-smtp-host" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_host ); ?>" placeholder="smtp.gmail.com">
-                                                                                </div>
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-port"><?php esc_html_e( 'SMTP Port', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="number" id="bcs-smtp-smtp-port" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_port ); ?>" min="1" max="65535">
-                                                                                        <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'SSL = 465 • TLS = 587 • None = 25', 'bcs-smtp-manager' ); ?></small>
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <!-- Encryption -->
                                                                         <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></label>
-                                                                                <div class="bcs-smtp-check-list" style="flex-direction:row;gap:8px">
-                                                                                        <?php foreach ( array( 'none' => __( 'None', 'bcs-smtp-manager' ), 'ssl' => __( 'SSL', 'bcs-smtp-manager' ), 'tls' => __( 'TLS', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
-                                                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:6px;padding:8px 14px;min-width:70px">
-                                                                                                <input type="radio" name="bcs_smtp_encryption" class="bcs-smtp-enc-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $smtp_enc, $val ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                                                <span class="bcs-smtp-check-label-title"><?php echo esc_html( $label ); ?></span>
+                                                                                <span class="bcs-smtp-field-label" id="bcs-smtp-enc-label"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></span>
+                                                                                <div class="bcs-smtp-segmented" role="radiogroup" aria-labelledby="bcs-smtp-enc-label">
+                                                                                        <?php foreach ( array( 'tls' => __( 'TLS · 587', 'bcs-smtp-manager' ), 'ssl' => __( 'SSL · 465', 'bcs-smtp-manager' ), 'none' => __( 'None · 25', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                                        <label>
+                                                                                                <input type="radio" name="bcs_smtp_encryption" class="bcs-smtp-enc-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $smtp_enc, $val ); ?>>
+                                                                                                <span><?php echo esc_html( $label ); ?></span>
                                                                                         </label>
                                                                                         <?php endforeach; ?>
                                                                                 </div>
                                                                         </div>
-
-                                                                        <!-- Auto TLS toggle -->
-                                                                        <div class="bcs-smtp-toggle-row" style="padding:10px 0">
-                                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                                        <div class="bcs-smtp-toggle-row-label" style="font-size:13px"><?php esc_html_e( 'Auto TLS', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Automatically upgrade to TLS if supported by the server', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                                <label class="bcs-smtp-toggle">
-                                                                                        <input type="checkbox" id="bcs-smtp-auto-tls" <?php checked( $auto_tls ); ?>>
-                                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                                </label>
-                                                                        </div>
-
-                                                                        <!-- Authentication toggle -->
-                                                                        <div class="bcs-smtp-toggle-row" style="padding:10px 0">
-                                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                                        <div class="bcs-smtp-toggle-row-label" style="font-size:13px"><?php esc_html_e( 'Authentication', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Authenticate with the SMTP server using username & password', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                                <label class="bcs-smtp-toggle">
-                                                                                        <input type="checkbox" id="bcs-smtp-smtp-auth" <?php checked( $smtp_auth ); ?>>
-                                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                                </label>
-                                                                        </div>
-
-                                                                        <!-- Username + Password (shown when auth enabled) -->
-                                                                        <div id="bcs-smtp-auth-fields" style="<?php echo $smtp_auth ? '' : 'display:none'; ?>">
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field" style="flex:0 0 50%;max-width:50%">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-username"><?php esc_html_e( 'Username', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-smtp-username" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_user ); ?>" placeholder="your@email.com" autocomplete="off">
-                                                                                </div>
-                                                                        </div>
-                                                                        <?php $has_pw = ! empty( get_option( 'bcs_smtp_password', '' ) ); ?>
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field" style="flex:0 0 50%;max-width:50%">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-password"><?php esc_html_e( 'Password / App Password', 'bcs-smtp-manager' ); ?></label>
-
-                                                                                        <!-- Masked display — shown when a password is already saved -->
-                                                                                        <div id="bcs-smtp-pw-display" style="<?php echo $has_pw ? 'display:flex' : 'display:none'; ?>;gap:8px;align-items:center">
-                                                                                                <input type="password" class="bcs-smtp-input" value="placeholder_pw"
-                                                                                                   disabled style="flex:1" aria-label="<?php esc_attr_e( 'Saved password (masked)', 'bcs-smtp-manager' ); ?>">
-                                                                                                <button type="button" id="bcs-smtp-change-pw-btn"
-                                                                                                                class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"
-                                                                                                                style="flex-shrink:0;white-space:nowrap">
-                                                                                                        <span class="dashicons dashicons-edit"></span> <?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?>
-                                                                                                </button>
-                                                                                        </div>
-
-                                                                                        <!-- Actual input — visible when no password yet, or after Change is clicked -->
-                                                                                        <div id="bcs-smtp-pw-input" style="<?php echo $has_pw ? 'display:none' : ''; ?>">
-                                                                                                <div class="bcs-smtp-pw-wrap">
-                                                                                                        <input type="password" id="bcs-smtp-smtp-password" class="bcs-smtp-input"
-                                                                                                                   value="" placeholder="<?php esc_attr_e( 'Enter password or app password…', 'bcs-smtp-manager' ); ?>"
-                                                                                                                   autocomplete="new-password" style="width:100%">
-                                                                                                        <button type="button" id="bcs-smtp-toggle-pw-btn" class="bcs-smtp-pw-eye" aria-label="<?php esc_attr_e( 'Show password', 'bcs-smtp-manager' ); ?>" tabindex="-1">
-                                                                                                                <span class="dashicons dashicons-visibility"></span>
-                                                                                                        </button>
-                                                                                                </div>
-                                                                                                <!-- Cancel link — shown after Change is clicked -->
-                                                                                                <div id="bcs-smtp-pw-cancel-row" style="display:none;margin-top:6px">
-                                                                                                        <a href="#" id="bcs-smtp-cancel-pw-btn" style="font-size:12px;color:var(--bcs-smtp-text-3);text-decoration:none">
-                                                                                                                &#8592; <?php esc_html_e( 'Cancel — keep existing password', 'bcs-smtp-manager' ); ?>
-                                                                                                        </a>
-                                                                                                </div>
-                                                                                        </div>
-
-                                                                                        <small style="font-size:11px;margin-top:6px;display:block">
-                                                                                                <span id="bcs-smtp-pw-status" style="color:<?php echo $has_pw ? 'var(--bcs-smtp-emerald)' : 'var(--bcs-smtp-text-3)'; ?>">
-                                                                                                        <?php echo $has_pw ? esc_html__( '✓ Password saved — leave blank to keep it.', 'bcs-smtp-manager' ) : esc_html__( 'No password saved yet.', 'bcs-smtp-manager' ); ?>
-                                                                                                </span><br>
-                                                                                                <span style="color:var(--bcs-smtp-text-3)">
-                                                                                                        <?php esc_html_e( 'Gmail / Workspace: use a 16-char', 'bcs-smtp-manager' ); ?> <strong><?php esc_html_e( 'App Password', 'bcs-smtp-manager' ); ?></strong>
-                                                                                                        (<a href="https://myaccount.google.com/apppasswords" target="_blank" rel="noopener"><?php esc_html_e( 'generate ↗', 'bcs-smtp-manager' ); ?></a>).
-                                                                                                        <?php esc_html_e( 'Outlook / Microsoft 365: use your account or app password.', 'bcs-smtp-manager' ); ?>
-                                                                                                        <?php esc_html_e( 'Spaces are stripped automatically.', 'bcs-smtp-manager' ); ?>
-                                                                                                </span>
-                                                                                        </small>
-                                                                                </div>
-                                                                        </div>
-                                                                        </div>
+                                                                        <label class="bcs-smtp-inline-switch" for="bcs-smtp-auto-tls">
+                                                                                <span class="bcs-smtp-toggle bcs-smtp-toggle--sm">
+                                                                                        <input type="checkbox" id="bcs-smtp-auto-tls" role="switch" <?php checked( $auto_tls ); ?>>
+                                                                                        <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                                </span>
+                                                                                <span><?php esc_html_e( 'Upgrade to TLS when the server offers it', 'bcs-smtp-manager' ); ?></span>
+                                                                        </label>
                                                                 </div>
                                                         </div>
-
-                                                        <div style="margin-top:16px">
-                                                                <button type="button" id="bcs-smtp-save-smtp-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save SMTP Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <div id="bcs-smtp-smtp-msg" role="status" aria-live="polite" style="display:none;margin-top:10px;width:100%"></div>
+                                                </div>
+
+                                                <div class="bcs-smtp-setup-foot">
+                                                        <button type="button" id="bcs-smtp-save-smtp-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
+                                                                <?php esc_html_e( 'Save and test connection', 'bcs-smtp-manager' ); ?>
+                                                        </button>
+                                                        <span class="bcs-smtp-unsaved" id="bcs-smtp-smtp-unsaved" hidden><?php esc_html_e( 'Unsaved changes', 'bcs-smtp-manager' ); ?></span>
+                                                        <div id="bcs-smtp-smtp-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                                </div>
+                                        </div>
+
+                                        <aside class="bcs-smtp-panel bcs-smtp-test" aria-labelledby="bcs-smtp-test-title">
+                                                <div class="bcs-smtp-test-head">
+                                                        <span class="bcs-smtp-test-badge dashicons dashicons-yes-alt" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2 id="bcs-smtp-test-title"><?php esc_html_e( 'Check it works', 'bcs-smtp-manager' ); ?></h2>
+                                                                <p><?php esc_html_e( 'Send a real email through your connection. The result shows here and in the email log.', 'bcs-smtp-manager' ); ?></p>
                                                         </div>
                                                 </div>
+                                                <div class="bcs-smtp-field">
+                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-test-to"><?php esc_html_e( 'Send a test email to', 'bcs-smtp-manager' ); ?></label>
+                                                        <input type="email" id="bcs-smtp-test-to" class="bcs-smtp-input" value="<?php echo esc_attr( get_option( 'admin_email' ) ); ?>" spellcheck="false">
+                                                </div>
+                                                <div class="bcs-smtp-actions">
+                                                        <button type="button" id="bcs-smtp-send-test-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Send test email', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-check-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" data-check-now data-msg="#bcs-smtp-test-msg"><?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
+                                                <div id="bcs-smtp-test-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </aside>
+                                </div>
+                        </section>
+
+                        <!-- ═══ PANEL: Email log ══════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-email-log" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-email-log">
+                                <?php
+                                $grace_until = (int) get_option( 'bcs_smtp_prune_after', 0 );
+                                $older_count = $grace_until > time() ? $this->db->count_email_log_older_than( BCS_SMTP_LOG_RETENTION_DAYS ) : 0;
+                                if ( $older_count > 0 ) :
+                                        $export_all = add_query_arg(
+                                                array(
+                                                        'bcs_smtp_action' => 'export_csv',
+                                                        'nonce'           => wp_create_nonce( 'bcs_smtp_export' ),
+                                                        'date_range'      => 'all',
+                                                        'status'          => 'all',
+                                                ),
+                                                admin_url( 'options-general.php?page=bcs-smtp-manager' )
+                                        );
+                                        ?>
+                                        <div class="bcs-smtp-alert bcs-smtp-alert-warning bcs-smtp-log-retention" role="status">
+                                                <span class="dashicons dashicons-info-outline" aria-hidden="true"></span>
+                                                <div class="bcs-smtp-alert-content">
+                                                        <?php
+                                                        printf(
+                                                                /* translators: 1: number of log entries, 2: date. */
+                                                                esc_html( _n( 'The email log now keeps the last 90 days. %1$s older entry will be removed on %2$s.', 'The email log now keeps the last 90 days. %1$s older entries will be removed on %2$s.', $older_count, 'bcs-smtp-manager' ) ),
+                                                                esc_html( number_format_i18n( $older_count ) ),
+                                                                esc_html( wp_date( get_option( 'date_format', 'F j, Y' ), $grace_until ) )
+                                                        );
+                                                        ?>
+                                                        <a href="<?php echo esc_url( $export_all ); ?>"><?php esc_html_e( 'Export all entries (CSV)', 'bcs-smtp-manager' ); ?></a>
+                                                </div>
                                         </div>
-                                </div>
-
-                                <div>
-                                        <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-header">
-                                                        <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'Common SMTP Providers', 'bcs-smtp-manager' ); ?></p>
-                                                        <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Reference host, port & encryption settings for popular providers.', 'bcs-smtp-manager' ); ?></p>
-                                                </div>
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-field-group" style="gap:10px">
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Gmail / Google Workspace', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.gmail.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Outlook / Microsoft 365', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.office365.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Yahoo Mail', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.mail.yahoo.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'SendGrid', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.sendgrid.net &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Amazon SES', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">email-smtp.[region].amazonaws.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Mailgun', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.mailgun.org &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-top:14px;margin-bottom:0">
-                                                                <span class="dashicons dashicons-info-outline"></span>
-                                                                <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'Gmail and Microsoft 365 require an app password when 2-factor authentication is enabled — your normal account password won’t work.', 'bcs-smtp-manager' ); ?></div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-
-                                </div>
-
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Email Log
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-email-log" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-card">
-                                        <div class="bcs-smtp-card-header">
-                                                <div style="display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:14px">
-                                                        <p class="bcs-smtp-card-title" style="margin:0"><span class="dashicons dashicons-list-view"></span><?php esc_html_e( 'Email Log', 'bcs-smtp-manager' ); ?></p>
-                                                        <div style="display:flex;gap:8px;flex-wrap:wrap">
-                                                                <a id="bcs-smtp-export-csv-btn" href="#" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm">
-                                                                        <span class="dashicons dashicons-download"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
-                                                                </a>
-                                                        </div>
-                                                </div>
-                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Every email sent via', 'bcs-smtp-manager' ); ?> <code>wp_mail()</code> <?php esc_html_e( 'is logged here with its delivery status.', 'bcs-smtp-manager' ); ?></p>
-                                        </div>
-                                        <div class="bcs-smtp-card-body">
-                                                <!-- Filters -->
-                                        <div style="display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center">
-                                                <select id="bcs-smtp-log-date-range" class="bcs-smtp-input" style="width:25%;min-width:130px">
-                                                        <option value="today"><?php esc_html_e( 'Today', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="yesterday"><?php esc_html_e( 'Yesterday', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="7days"><?php esc_html_e( 'Last 7 days', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="30days" selected><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="this_week"><?php esc_html_e( 'This week', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="last_week"><?php esc_html_e( 'Last week', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="this_month"><?php esc_html_e( 'This month', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="3months"><?php esc_html_e( 'Last 3 months', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="6months"><?php esc_html_e( 'Last 6 months', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="year"><?php esc_html_e( 'This year', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="all"><?php esc_html_e( 'All time', 'bcs-smtp-manager' ); ?></option>
+                                <?php endif; ?>
+                                <div class="bcs-smtp-panel bcs-smtp-panel--flush">
+                                        <div class="bcs-smtp-filters">
+                                                <div class="bcs-smtp-search">
+                                                        <span class="dashicons dashicons-search" aria-hidden="true"></span>
+                                                        <label class="screen-reader-text" for="bcs-smtp-log-search"><?php esc_html_e( 'Search email log', 'bcs-smtp-manager' ); ?></label>
+                                                        <input type="search" id="bcs-smtp-log-search" class="bcs-smtp-input" placeholder="<?php esc_attr_e( 'Search subject or address', 'bcs-smtp-manager' ); ?>">
+                                                </div>
+                                                <label class="screen-reader-text" for="bcs-smtp-log-date-range"><?php esc_html_e( 'Date range', 'bcs-smtp-manager' ); ?></label>
+                                                <select id="bcs-smtp-log-date-range" class="bcs-smtp-input bcs-smtp-select">
+                                                        <?php foreach ( $date_ranges as $val => $label ) : ?>
+                                                                <option value="<?php echo esc_attr( $val ); ?>" <?php selected( $val, '30days' ); ?>><?php echo esc_html( $label ); ?></option>
+                                                        <?php endforeach; ?>
                                                 </select>
-                                                <select id="bcs-smtp-log-status" class="bcs-smtp-input" style="width:25%;min-width:120px">
-                                                        <option value=""><?php esc_html_e( 'All statuses', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="success"><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="failed"><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="unconfirmed"><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></option>
-                                                </select>
-                                                <input type="text" id="bcs-smtp-log-search" class="bcs-smtp-input" style="width:50%;min-width:200px;flex:1" placeholder="<?php esc_attr_e( 'Search subject, from, or to email…', 'bcs-smtp-manager' ); ?>">
+                                                <div class="bcs-smtp-segmented bcs-smtp-status-filter" role="radiogroup" aria-label="<?php esc_attr_e( 'Status', 'bcs-smtp-manager' ); ?>">
+                                                        <?php foreach ( array( '' => __( 'All', 'bcs-smtp-manager' ), 'success' => __( 'Sent', 'bcs-smtp-manager' ), 'failed' => __( 'Failed', 'bcs-smtp-manager' ), 'unconfirmed' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                <label><input type="radio" name="bcs_smtp_log_status" class="bcs-smtp-log-status-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( '', $val ); ?>><span><?php echo esc_html( $label ); ?><b class="bcs-smtp-seg-count" data-count="<?php echo esc_attr( '' === $val ? 'all' : $val ); ?>"></b></span></label>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                                <input type="hidden" id="bcs-smtp-log-status" value="">
+                                                <a id="bcs-smtp-export-csv-btn" href="#" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm">
+                                                        <span class="dashicons dashicons-download" aria-hidden="true"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
+                                                </a>
                                         </div>
 
                                         <div class="bcs-smtp-table-wrap">
                                                 <table class="bcs-smtp-table">
+                                                        <caption class="screen-reader-text"><?php esc_html_e( 'Emails sent by WordPress', 'bcs-smtp-manager' ); ?></caption>
                                                         <thead>
                                                                 <tr>
-                                                                        <th><?php esc_html_e( 'Date', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Subject', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'From', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'To', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Status', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Error', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Actions', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-date"><?php esc_html_e( 'Time', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-subject"><?php esc_html_e( 'Subject', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-to"><?php esc_html_e( 'To', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-status"><?php esc_html_e( 'Status', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-more"><span class="screen-reader-text"><?php esc_html_e( 'Open', 'bcs-smtp-manager' ); ?></span></th>
                                                                 </tr>
                                                         </thead>
                                                         <tbody id="bcs-smtp-log-tbody">
-                                                                <tr><td colspan="7" style="text-align:center;padding:24px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( 'Loading…', 'bcs-smtp-manager' ); ?></td></tr>
+                                                                <tr><td colspan="5" class="bcs-smtp-table-empty"><?php esc_html_e( 'Loading…', 'bcs-smtp-manager' ); ?></td></tr>
                                                         </tbody>
                                                 </table>
                                         </div>
 
-                                        <!-- Pagination + per-page at bottom -->
-                                        <div style="margin-top:12px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px">
-                                                <div style="display:flex;align-items:center;gap:8px">
-                                                        <label style="font-size:12px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'Show per page:', 'bcs-smtp-manager' ); ?></label>
-                                                        <select id="bcs-smtp-log-per-page" class="bcs-smtp-input" style="width:auto;min-width:80px">
-                                                                <option value="10" selected>10</option>
-                                                                <option value="20">20</option>
+                                        <div class="bcs-smtp-pager">
+                                                <div class="bcs-smtp-pager-size">
+                                                        <label for="bcs-smtp-log-per-page"><?php esc_html_e( 'Rows', 'bcs-smtp-manager' ); ?></label>
+                                                        <select id="bcs-smtp-log-per-page" class="bcs-smtp-input bcs-smtp-select bcs-smtp-select--sm">
+                                                                <option value="10">10</option>
+                                                                <option value="25" selected>25</option>
                                                                 <option value="50">50</option>
                                                                 <option value="100">100</option>
                                                         </select>
                                                 </div>
-                                                <div id="bcs-smtp-log-pagination" style="display:flex;align-items:center;gap:8px;flex-wrap:wrap">
-                                                        <button type="button" id="bcs-smtp-log-prev" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" disabled>&larr; <?php esc_html_e( 'Prev', 'bcs-smtp-manager' ); ?></button>
-                                                        <span id="bcs-smtp-log-page-info" style="font-size:12px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'Page 1', 'bcs-smtp-manager' ); ?></span>
-                                                        <button type="button" id="bcs-smtp-log-next" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"><?php esc_html_e( 'Next', 'bcs-smtp-manager' ); ?> &rarr;</button>
-                                                </div>
-                                        </div>
+                                                <div id="bcs-smtp-log-pagination" class="bcs-smtp-pager-nav">
+                                                        <button type="button" id="bcs-smtp-log-prev" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" disabled><?php esc_html_e( 'Previous', 'bcs-smtp-manager' ); ?></button>
+                                                        <span id="bcs-smtp-log-page-info" aria-live="polite"></span>
+                                                        <button type="button" id="bcs-smtp-log-next" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"><?php esc_html_e( 'Next', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
                                         </div>
                                 </div>
-
-                                <!-- Log Retention accordion -->
+                        </section>
+
+                        <!-- ═══ PANEL: Alerts ═════════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-alerts" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-alerts">
+
+                                <div class="bcs-smtp-alerts-grid">
+                                        <section class="bcs-smtp-panel bcs-smtp-alerts-card" aria-labelledby="bcs-smtp-alerts-title">
+                                                <div class="bcs-smtp-alerts-head">
+                                                        <span class="bcs-smtp-alerts-badge dashicons dashicons-bell" aria-hidden="true"></span>
+                                                        <div class="bcs-smtp-alerts-intro">
+                                                                <h2 id="bcs-smtp-alerts-title"><label for="bcs-smtp-alert-channel-enabled"><?php esc_html_e( 'Failure alerts', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p><?php esc_html_e( 'A message in your team chat the moment email stops sending.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-alert-channel-enabled" role="switch" aria-controls="bcs-smtp-alert-channel-accordion" <?php checked( $alert_enabled ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+
+                                                <div id="bcs-smtp-alert-channel-accordion" class="bcs-smtp-reveal <?php echo $alert_enabled ? 'open' : ''; ?>">
+                                                        <div class="bcs-smtp-ch-list-head">
+                                                                <span id="bcs-smtp-channel-label"><?php esc_html_e( 'Channels', 'bcs-smtp-manager' ); ?></span>
+                                                                <span class="bcs-smtp-ch-count" id="bcs-smtp-ch-count" aria-live="polite"></span>
+                                                        </div>
+                                                        <?php
+                                                        $channel_icons = array(
+                                                                'slack'       => 'format-chat',
+                                                                'teams'       => 'groups',
+                                                                'google_chat' => 'format-status',
+                                                                'discord'     => 'games',
+                                                                'custom'      => 'admin-links',
+                                                        );
+                                                        $webhooks = array(
+                                                                'slack'       => array( 'opt' => BCS_SMTP_OPT_SLACK_WEBHOOK_URL,       'id' => 'slack',       'sub' => __( 'Incoming webhook', 'bcs-smtp-manager' ),                 'ph' => 'https://hooks.slack.com/services/…', 'how' => __( 'In Slack: Apps → Incoming Webhooks → Add to a channel.', 'bcs-smtp-manager' ), 'link' => 'https://api.slack.com/messaging/webhooks' ),
+                                                                'teams'       => array( 'opt' => BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,       'id' => 'teams',       'sub' => __( 'Workflows webhook', 'bcs-smtp-manager' ),                'ph' => 'https://…powerplatform.com/…/workflows/…', 'how' => __( 'In Teams: channel → Workflows → “Post to a channel when a webhook request is received”.', 'bcs-smtp-manager' ), 'link' => 'https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook' ),
+                                                                'google_chat' => array( 'opt' => BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, 'id' => 'google-chat', 'sub' => __( 'Space webhook', 'bcs-smtp-manager' ),                    'ph' => 'https://chat.googleapis.com/v1/spaces/…', 'how' => __( 'In Google Chat: space → Apps & integrations → Webhooks.', 'bcs-smtp-manager' ), 'link' => 'https://developers.google.com/workspace/chat/quickstart/webhooks' ),
+                                                                'discord'     => array( 'opt' => BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,     'id' => 'discord',     'sub' => __( 'Channel webhook', 'bcs-smtp-manager' ),                  'ph' => 'https://discord.com/api/webhooks/…', 'how' => __( 'In Discord: Server Settings → Integrations → Webhooks.', 'bcs-smtp-manager' ), 'link' => 'https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks' ),
+                                                                'custom'      => array( 'opt' => BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,      'id' => 'custom',      'sub' => __( 'JSON for Zapier, Make or n8n', 'bcs-smtp-manager' ),      'ph' => 'https://example.com/webhook', 'how' => __( 'Receives a JSON payload with the event, site, error and failure count.', 'bcs-smtp-manager' ), 'link' => '' ),
+                                                        );
+                                                        ?>
+                                                        <ul class="bcs-smtp-ch-list" aria-labelledby="bcs-smtp-channel-label">
+                                                                <?php
+                                                                foreach ( $channels as $val => $ch ) :
+                                                                        $w = $webhooks[ $val ];
+                                                                        ?>
+                                                                        <li class="bcs-smtp-ch" data-channel="<?php echo esc_attr( $val ); ?>">
+                                                                                <div class="bcs-smtp-ch-row">
+                                                                                        <button type="button" class="bcs-smtp-ch-main" aria-expanded="false" aria-controls="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-row">
+                                                                                                <span class="bcs-smtp-ch-icon dashicons dashicons-<?php echo esc_attr( $channel_icons[ $val ] ); ?>" aria-hidden="true"></span>
+                                                                                                <span class="bcs-smtp-ch-text">
+                                                                                                        <span class="bcs-smtp-ch-name"><?php echo esc_html( $ch['label'] ); ?></span>
+                                                                                                        <span class="bcs-smtp-ch-sub"><?php echo esc_html( $w['sub'] ); ?></span>
+                                                                                                </span>
+                                                                                                <span class="bcs-smtp-ch-pill" aria-live="polite"></span>
+                                                                                                <span class="bcs-smtp-ch-chevron dashicons dashicons-arrow-down-alt2" aria-hidden="true"></span>
+                                                                                        </button>
+                                                                                        <span class="bcs-smtp-toggle">
+                                                                                                <input type="checkbox" name="bcs_alert_channels[]" class="bcs-smtp-channel-radio" role="switch" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" data-label="<?php echo esc_attr( $ch['label'] ); ?>" aria-label="<?php echo esc_attr( sprintf( /* translators: %s: alert channel name, e.g. Slack. */ __( 'Send alerts to %s', 'bcs-smtp-manager' ), $ch['label'] ) ); ?>" <?php checked( in_array( $val, $alert_chs, true ) ); ?>>
+                                                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                                        </span>
+                                                                                </div>
+                                                                                <div id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-row" class="bcs-smtp-webhook" data-channel="<?php echo esc_attr( $val ); ?>" hidden>
+                                                                                        <div class="bcs-smtp-webhook-head">
+                                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-url"><?php esc_html_e( 'Webhook URL', 'bcs-smtp-manager' ); ?></label>
+                                                                                                <?php if ( $w['link'] ) : ?>
+                                                                                                        <a class="bcs-smtp-webhook-guide" href="<?php echo esc_url( $w['link'] ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Setup guide', 'bcs-smtp-manager' ); ?><span class="dashicons dashicons-external" aria-hidden="true"></span><span class="screen-reader-text"> <?php esc_html_e( '(opens in a new tab)', 'bcs-smtp-manager' ); ?></span></a>
+                                                                                                <?php endif; ?>
+                                                                                        </div>
+                                                                                        <input type="url" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-url" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( get_option( $w['opt'], '' ) ); ?>" placeholder="<?php echo esc_attr( $w['ph'] ); ?>" spellcheck="false" autocomplete="off" aria-describedby="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-err bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-how">
+                                                                                        <p class="bcs-smtp-webhook-err" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-err" hidden></p>
+                                                                                        <p class="bcs-smtp-webhook-how" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-how"><?php echo esc_html( $w['how'] ); ?></p>
+                                                                                </div>
+                                                                        </li>
+                                                                <?php endforeach; ?>
+                                                        </ul>
+                                                </div>
+
+                                                <div class="bcs-smtp-alerts-off" id="bcs-smtp-alerts-off" <?php echo $alert_enabled ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-bell" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'Alerts are off. Health checks still run, but you’ll only see a problem when you open this page.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+
+                                                <div class="bcs-smtp-actions bcs-smtp-card-foot">
+                                                        <button type="button" id="bcs-smtp-save-alerts-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Save alerts', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-test-alert-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" <?php disabled( ! $alert_enabled || ! $alert_chs ); ?>><?php esc_html_e( 'Send test alert', 'bcs-smtp-manager' ); ?></button>
+                                                        <span class="bcs-smtp-unsaved" id="bcs-smtp-alerts-unsaved" hidden><?php esc_html_e( 'Unsaved changes', 'bcs-smtp-manager' ); ?></span>
+                                                </div>
+                                                <div id="bcs-smtp-alerts-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </section>
+
+                                        <aside class="bcs-smtp-panel bcs-smtp-health-side" aria-labelledby="bcs-smtp-monitor-title">
+                                                <div class="bcs-smtp-health-head">
+                                                        <span class="bcs-smtp-health-icon dashicons dashicons-heart" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2 id="bcs-smtp-monitor-title"><?php esc_html_e( 'Health checks run automatically', 'bcs-smtp-manager' ); ?></h2>
+                                                                <p><?php esc_html_e( 'Each check signs in to your mail server without sending an email.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                </div>
+
+                                                <?php if ( $monitor_on ) : ?>
+                                                        <dl class="bcs-smtp-health-times">
+                                                                <div>
+                                                                        <dt><?php esc_html_e( 'Last check', 'bcs-smtp-manager' ); ?></dt>
+                                                                        <dd>
+                                                                                <?php
+                                                                                /* translators: %s: time since the last check, e.g. "5 minutes". */
+                                                                                echo $last_check ? esc_html( sprintf( __( '%s ago', 'bcs-smtp-manager' ), $this->check_minutes( $last_check ) ) ) : esc_html__( 'Not checked yet', 'bcs-smtp-manager' );
+                                                                                ?>
+                                                                        </dd>
+                                                                </div>
+                                                                <div>
+                                                                        <dt><?php esc_html_e( 'Next check', 'bcs-smtp-manager' ); ?></dt>
+                                                                        <dd>
+                                                                                <?php
+                                                                                if ( ! $next_check ) {
+                                                                                        esc_html_e( 'Being scheduled', 'bcs-smtp-manager' );
+                                                                                } elseif ( $next_check > time() ) {
+                                                                                        /* translators: %s: time until the next check, e.g. "10 minutes". */
+                                                                                        echo esc_html( sprintf( __( 'in %s', 'bcs-smtp-manager' ), $this->check_minutes( $next_check, true ) ) );
+                                                                                } else {
+                                                                                        esc_html_e( 'Due now', 'bcs-smtp-manager' );
+                                                                                }
+                                                                                ?>
+                                                                        </dd>
+                                                                </div>
+                                                        </dl>
+                                                <?php else : ?>
+                                                        <p class="bcs-smtp-health-pending"><?php esc_html_e( 'Health checks start once your connection is set up.', 'bcs-smtp-manager' ); ?></p>
+                                                <?php endif; ?>
+
+                                                <ul class="bcs-smtp-health-rules">
+                                                        <li><span class="dashicons dashicons-clock" aria-hidden="true"></span>
+                                                                <?php
+                                                                /* translators: %d: minutes between health checks. */
+                                                                printf( esc_html__( 'Every %d minutes', 'bcs-smtp-manager' ), (int) BCS_SMTP_CHECK_INTERVAL_MINUTES );
+                                                                ?>
+                                                        </li>
+                                                        <li><span class="dashicons dashicons-bell" aria-hidden="true"></span><?php esc_html_e( 'Alert on the failed check', 'bcs-smtp-manager' ); ?></li>
+                                                        <li><span class="dashicons dashicons-shield" aria-hidden="true"></span><?php esc_html_e( 'One alert per outage, never a flood', 'bcs-smtp-manager' ); ?></li>
+                                                        <li><span class="dashicons dashicons-update" aria-hidden="true"></span><?php esc_html_e( 'Resets when mail recovers', 'bcs-smtp-manager' ); ?></li>
+                                                </ul>
+                                        </aside>
+                                </div>
+                        </section>
+
+                        <!-- ═══ PANEL: Reports ════════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-reports" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-reports">
                                 <?php
-                                $prune_mode = get_option( 'bcs_log_prune_mode', 'days' );
+                                $report_ranges = array(
+                                        '7days'   => __( '7 days', 'bcs-smtp-manager' ),
+                                        '30days'  => __( '30 days', 'bcs-smtp-manager' ),
+                                        '3months' => __( '90 days', 'bcs-smtp-manager' ),
+                                );
                                 ?>
-                                <div class="bcs-smtp-accordion" style="margin-top:12px">
-                                        <button type="button" class="bcs-smtp-accordion-header" aria-expanded="false">
-                                                <span class="dashicons dashicons-trash"></span>
-                                                <span><?php esc_html_e( 'Log Retention', 'bcs-smtp-manager' ); ?></span>
-                                                <span class="bcs-smtp-accordion-arrow dashicons dashicons-arrow-down-alt2" style="margin-left:auto"></span>
-                                        </button>
-                                        <div class="bcs-smtp-accordion-body" style="display:none">
-                                                <p style="font-size:13px;color:var(--bcs-smtp-text-2);margin:0 0 16px"><?php esc_html_e( 'Automatically delete old log entries to keep the database lean. Runs daily via WP-Cron.', 'bcs-smtp-manager' ); ?></p>
-                                                <div class="bcs-smtp-check-list" style="flex-direction:column;gap:6px;margin-bottom:16px">
-                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:10px;padding:10px 14px">
-                                                                <input type="radio" name="bcs_smtp_prune_mode" class="bcs-smtp-prune-radio" value="days" <?php checked( $prune_mode, 'days' ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                <span class="bcs-smtp-check-label-title"><?php esc_html_e( 'Keep last', 'bcs-smtp-manager' ); ?></span>
-                                                                <input type="number" class="bcs-smtp-input" value="30" readonly disabled
-                                                                        style="width:80px;display:inline-block;opacity:.7;cursor:not-allowed">
-                                                                <span style="font-size:13px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'days', 'bcs-smtp-manager' ); ?> <span style="font-size:11px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( '(fixed)', 'bcs-smtp-manager' ); ?></span></span>
-                                                        </label>
-                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:10px;padding:10px 14px">
-                                                                <input type="radio" name="bcs_smtp_prune_mode" class="bcs-smtp-prune-radio" value="records" <?php checked( $prune_mode, 'records' ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                <span class="bcs-smtp-check-label-title"><?php esc_html_e( 'Keep last', 'bcs-smtp-manager' ); ?></span>
-                                                                <input type="number" class="bcs-smtp-input" value="1000" readonly disabled
-                                                                        style="width:80px;display:inline-block;opacity:.7;cursor:not-allowed">
-                                                                <span style="font-size:13px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'records', 'bcs-smtp-manager' ); ?> <span style="font-size:11px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( '(fixed)', 'bcs-smtp-manager' ); ?></span></span>
-                                                        </label>
-                                                </div>
-                                                <button type="button" id="bcs-smtp-save-log-prune-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Retention Settings', 'bcs-smtp-manager' ); ?>
-                                                </button>
-                                                <div id="bcs-smtp-log-prune-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
+                                <section class="bcs-smtp-panel bcs-smtp-report" aria-labelledby="bcs-smtp-report-title">
+                                        <div class="bcs-smtp-panel-head">
+                                                <div>
+                                                        <h2 id="bcs-smtp-report-title"><?php esc_html_e( 'Email delivery', 'bcs-smtp-manager' ); ?></h2>
+                                                        <p class="bcs-smtp-panel-sub" id="bcs-smtp-report-period"><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+                                                <div class="bcs-smtp-report-tools">
+                                                        <div class="bcs-smtp-segmented bcs-smtp-segmented--sm" role="radiogroup" aria-label="<?php esc_attr_e( 'Time range', 'bcs-smtp-manager' ); ?>">
+                                                                <?php foreach ( $report_ranges as $val => $label ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_rp_range" class="bcs-smtp-rp-range" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" data-label="<?php echo esc_attr( $label ); ?>" <?php checked( '30days', $val ); ?>><span><?php echo esc_html( $label ); ?></span></label>
+                                                                <?php endforeach; ?>
+                                                        </div>
+                                                        <button type="button" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" id="bcs-smtp-report-export">
+                                                                <span class="dashicons dashicons-download" aria-hidden="true"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
+                                                        </button>
+                                                </div>
                                         </div>
+
+                                        <dl class="bcs-smtp-figures bcs-smtp-figures--5 bcs-smtp-report-stats">
+                                                <div><dt><?php esc_html_e( 'Total', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-total"><?php echo esc_html( number_format_i18n( $summary_30d['total'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--sent" aria-hidden="true"></span><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-success"><?php echo esc_html( number_format_i18n( $summary_30d['success'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--bad" aria-hidden="true"></span><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-failed" class="<?php echo $summary_30d['failed'] > 0 ? 'is-bad' : ''; ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--warn" aria-hidden="true"></span><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-unconfirmed"><?php echo esc_html( number_format_i18n( $summary_30d['unconfirmed'] ) ); ?></dd></div>
+                                                <div class="bcs-smtp-figure-rate">
+                                                        <dt><?php esc_html_e( 'Delivered', 'bcs-smtp-manager' ); ?></dt>
+                                                        <dd id="bcs-smtp-report-rate"><?php echo null === $rate ? '—' : esc_html( number_format_i18n( $rate, 1 ) ) . '<small>%</small>'; ?></dd>
+                                                        <span class="bcs-smtp-ratebar" aria-hidden="true"><span id="bcs-smtp-report-ratebar" style="width:<?php echo esc_attr( null === $rate ? 0 : $rate ); ?>%"></span></span>
+                                                </div>
+                                        </dl>
+
+                                        <div class="bcs-smtp-linechart bcs-smtp-linechart--lg" id="bcs-smtp-report-chart" tabindex="0"
+                                                role="img" aria-label="<?php esc_attr_e( 'Emails over time: sent, failed and unconfirmed. Use the left and right arrow keys to read each point.', 'bcs-smtp-manager' ); ?>"
+                                                data-chart="<?php echo esc_attr( wp_json_encode( $chart ) ); ?>">
+                                                <div class="bcs-smtp-linechart-tip" aria-live="polite" hidden></div>
+                                        </div>
+                                        <p class="bcs-smtp-chart-empty" id="bcs-smtp-chart-empty" <?php echo $summary_30d['total'] > 0 ? 'hidden' : ''; ?>><?php esc_html_e( 'No email was sent in this period.', 'bcs-smtp-manager' ); ?></p>
+                                </section>
+
+                                <div class="bcs-smtp-report-grid">
+                                        <section class="bcs-smtp-panel" aria-labelledby="bcs-smtp-highlights-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-highlights-title"><?php esc_html_e( 'Highlights', 'bcs-smtp-manager' ); ?></h2>
+                                                </div>
+                                                <dl class="bcs-smtp-highlights" id="bcs-smtp-highlights">
+                                                        <div><dt><span class="bcs-smtp-hl-icon dashicons dashicons-chart-line" aria-hidden="true"></span><?php esc_html_e( 'Average per day', 'bcs-smtp-manager' ); ?></dt><dd data-hl="avg">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon dashicons dashicons-calendar-alt" aria-hidden="true"></span><?php esc_html_e( 'Busiest day', 'bcs-smtp-manager' ); ?></dt><dd data-hl="peak">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-yes-alt" aria-hidden="true"></span><?php esc_html_e( 'Failure-free days', 'bcs-smtp-manager' ); ?></dt><dd data-hl="cleandays">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-awards" aria-hidden="true"></span><?php esc_html_e( 'Longest failure-free run', 'bcs-smtp-manager' ); ?></dt><dd data-hl="beststreak">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-groups" aria-hidden="true"></span><span><?php esc_html_e( 'People reached', 'bcs-smtp-manager' ); ?><small class="bcs-smtp-hl-sub"><?php esc_html_e( 'Visitors and customers who received your email', 'bcs-smtp-manager' ); ?></small></span></dt><dd data-hl="recipients" data-initial="<?php list( $own, $own_domains ) = $this->internal_recipients(); echo esc_attr( $this->db->count_unique_recipients( '30days', $own, $own_domains ) ); ?>">—</dd></div>
+                                                </dl>
+                                        </section>
+
+                                        <section class="bcs-smtp-panel bcs-smtp-schedule" aria-labelledby="bcs-smtp-schedule-title">
+                                                <div class="bcs-smtp-toggle-row bcs-smtp-toggle-row--head">
+                                                        <div class="bcs-smtp-toggle-row-info">
+                                                                <h2 id="bcs-smtp-schedule-title"><label for="bcs-smtp-report-schedule-enabled"><?php esc_html_e( 'Email me this report', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'On the 1st of every month at 9:00 am, a summary of last month’s sent, failed and unconfirmed email with a daily chart.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-report-schedule-enabled" role="switch" aria-controls="bcs-smtp-report-body" <?php checked( $report_schedule_enabled ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+                                                <div id="bcs-smtp-report-body" <?php echo $report_schedule_enabled ? '' : 'hidden'; ?>>
+                                                <div class="bcs-smtp-field">
+                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-report-emails-entry"><?php esc_html_e( 'Send to', 'bcs-smtp-manager' ); ?></label>
+                                                        <div class="bcs-smtp-chips" id="bcs-smtp-report-chips">
+                                                                <ul class="bcs-smtp-chip-list" aria-label="<?php esc_attr_e( 'Report recipients', 'bcs-smtp-manager' ); ?>"></ul>
+                                                                <input type="text" inputmode="email" id="bcs-smtp-report-emails-entry" class="bcs-smtp-chips-input" placeholder="<?php esc_attr_e( 'Add an email address', 'bcs-smtp-manager' ); ?>" autocomplete="off" spellcheck="false">
+                                                        </div>
+                                                        <input type="hidden" id="bcs-smtp-report-emails" value="<?php echo esc_attr( $report_emails ? $report_emails : get_option( 'admin_email' ) ); ?>">
+                                                </div>
+                                                <?php $next_report = $this->next_report_timestamp(); ?>
+                                                <p class="bcs-smtp-report-next" id="bcs-smtp-report-next" <?php echo $next_report ? '' : 'hidden'; ?>>
+                                                        <span class="dashicons dashicons-clock" aria-hidden="true"></span>
+                                                        <span id="bcs-smtp-report-next-text"><?php echo $next_report ? esc_html( $this->describe_next_report( $next_report ) ) : ''; ?></span>
+                                                </p>
+                                                </div>
+                                                <div class="bcs-smtp-alerts-off" id="bcs-smtp-report-off" <?php echo $report_schedule_enabled ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'Monthly reports are off. Your stats stay on this page.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+                                                <div class="bcs-smtp-actions">
+                                                        <button type="button" id="bcs-smtp-save-report-schedule-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Save schedule', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-send-report-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" <?php echo $report_schedule_enabled ? '' : 'hidden'; ?>><?php esc_html_e( 'Send a report now', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
+                                                <div id="bcs-smtp-report-schedule-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </section>
                                 </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Email Report
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-email-report" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-card">
-                                        <div class="bcs-smtp-card-header">
-                                                <div style="display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px">
-                                                        <p class="bcs-smtp-card-title" style="margin:0"><span class="dashicons dashicons-chart-bar"></span><?php esc_html_e( 'Email Report', 'bcs-smtp-manager' ); ?></p>
-                                                        <select id="bcs-smtp-report-date-range" class="bcs-smtp-input" style="max-width:160px">
-                                                                <option value="today"><?php esc_html_e( 'Today', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="yesterday"><?php esc_html_e( 'Yesterday', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="7days"><?php esc_html_e( 'Last 7 days', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="30days" selected><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="this_week"><?php esc_html_e( 'This week', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="last_week"><?php esc_html_e( 'Last week', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="this_month"><?php esc_html_e( 'This month', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="3months"><?php esc_html_e( 'Last 3 months', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="6months"><?php esc_html_e( 'Last 6 months', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="year"><?php esc_html_e( 'This year', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="all"><?php esc_html_e( 'All time', 'bcs-smtp-manager' ); ?></option>
-                                                        </select>
-                                                </div>
-                                        </div>
-                                        <div class="bcs-smtp-card-body">
-                                                <!-- Summary stat boxes -->
-                                                <div class="bcs-smtp-report-stats" style="display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:20px">
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon good">
-                                                                        <span class="dashicons dashicons-yes"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value good" id="bcs-smtp-report-success" style="font-size:28px"><?php echo esc_html( $summary_30d['success'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon bad">
-                                                                        <span class="dashicons dashicons-warning"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value bad" id="bcs-smtp-report-failed" style="font-size:28px"><?php echo esc_html( $summary_30d['failed'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon">
-                                                                        <span class="dashicons dashicons-editor-help"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value" id="bcs-smtp-report-unconfirmed" style="font-size:28px"><?php echo esc_html( $summary_30d['unconfirmed'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon">
-                                                                        <span class="dashicons dashicons-chart-bar"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value" id="bcs-smtp-report-total" style="font-size:28px"><?php echo esc_html( $summary_30d['total'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Total', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <!-- Chart -->
-                                                <div style="position:relative;height:320px;width:100%;margin-bottom:0">
-                                                        <canvas id="bcs-smtp-report-chart"></canvas>
-                                                </div>
-                                        </div>
-                                </div>
-
-                                <!-- Schedule Report accordion — inside the panel, outside the card -->
-                                <div class="bcs-smtp-accordion" style="margin-top:12px">
-                                        <button type="button" class="bcs-smtp-accordion-header" aria-expanded="false">
-                                                <span class="dashicons dashicons-calendar-alt"></span>
-                                                <span><?php esc_html_e( 'Schedule Report', 'bcs-smtp-manager' ); ?></span>
-                                                <span class="bcs-smtp-accordion-arrow dashicons dashicons-arrow-down-alt2" style="margin-left:auto"></span>
-                                        </button>
-                                        <div class="bcs-smtp-accordion-body" style="display:none">
-                                                <div class="bcs-smtp-toggle-row" style="padding:4px 0 16px">
-                                                        <div class="bcs-smtp-toggle-row-info">
-                                                                <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable automated report emails', 'bcs-smtp-manager' ); ?></div>
-                                                                <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Automatically send email reports on the schedule below', 'bcs-smtp-manager' ); ?></div>
-                                                        </div>
-                                                        <label class="bcs-smtp-toggle">
-                                                                <input type="checkbox" id="bcs-smtp-report-schedule-enabled" <?php checked( $report_schedule_enabled ); ?>>
-                                                                <span class="bcs-smtp-toggle-slider"></span>
-                                                        </label>
-                                                </div>
-                                                <div class="bcs-smtp-field-row" style="margin-bottom:20px">
-                                                        <div class="bcs-smtp-field">
-                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-report-emails"><?php esc_html_e( 'Recipients', 'bcs-smtp-manager' ); ?> <span style="color:var(--bcs-smtp-text-3);font-weight:400"><?php esc_html_e( '(comma-separated)', 'bcs-smtp-manager' ); ?></span></label>
-                                                                <input type="text" id="bcs-smtp-report-emails" class="bcs-smtp-input" value="<?php echo esc_attr( $report_emails ); ?>" placeholder="admin@example.com, manager@example.com">
-                                                        </div>
-                                                        <div class="bcs-smtp-field">
-                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-report-frequency"><?php esc_html_e( 'Frequency', 'bcs-smtp-manager' ); ?></label>
-                                                                <select id="bcs-smtp-report-frequency" class="bcs-smtp-input">
-                                                                        <option value="daily"   <?php selected( $report_frequency, 'daily' ); ?>><?php esc_html_e( 'Daily', 'bcs-smtp-manager' ); ?></option>
-                                                                        <option value="weekly"  <?php selected( $report_frequency, 'weekly' ); ?>><?php esc_html_e( 'Weekly', 'bcs-smtp-manager' ); ?></option>
-                                                                        <option value="monthly" <?php selected( $report_frequency, 'monthly' ); ?>><?php esc_html_e( 'Monthly', 'bcs-smtp-manager' ); ?></option>
-                                                                </select>
-                                                        </div>
-                                                </div>
-                                                <div style="display:flex;align-items:center;gap:12px;flex-wrap:wrap">
-                                                        <button type="button" id="bcs-smtp-save-report-schedule-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Schedule', 'bcs-smtp-manager' ); ?>
-                                                        </button>
-                                                        <button type="button" id="bcs-smtp-send-report-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                <span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'Send Report Now', 'bcs-smtp-manager' ); ?>
-                                                        </button>
-                                                </div>
-                                                <div id="bcs-smtp-report-schedule-msg" role="status" aria-live="polite" style="display:none;margin-top:12px"></div>
-                                        </div>
-                                </div>
-
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Send Test Email
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-test" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-email"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( "Trigger a real email send via WordPress's", 'bcs-smtp-manager' ); ?> <code>wp_mail()</code>. <?php esc_html_e( 'This validates the full SMTP stack and logs the result.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field">
-                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-test-to"><?php esc_html_e( 'Recipient address', 'bcs-smtp-manager' ); ?></label>
-                                                                        <input type="email" id="bcs-smtp-test-to" class="bcs-smtp-input" value="<?php echo esc_attr( get_option( 'admin_email' ) ); ?>" placeholder="recipient@example.com">
-                                                                </div>
-
-                                                                <div style="margin-top:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap">
-                                                                        <button type="button" id="bcs-smtp-send-test-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                                <span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <?php if ( $monitor_on ) : ?>
-                                                                        <button type="button" id="bcs-smtp-check-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                                <span class="dashicons dashicons-update"></span><?php esc_html_e( 'Run Health Check Now', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <?php endif; ?>
-                                                                </div>
-                                                                <div id="bcs-smtp-test-msg" role="status" aria-live="polite" style="display:none;margin-top:12px"></div>
-                                                        </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'What this tests', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'A real email is sent via', 'bcs-smtp-manager' ); ?> <code>wp_mail()</code> <?php esc_html_e( 'through your configured SMTP. The result is logged to the Email Log tab.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-bottom:0">
-                                                                        <span class="dashicons dashicons-info-outline"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px">
-                                                                                <strong><?php esc_html_e( 'Failure types detected:', 'bcs-smtp-manager' ); ?></strong>
-                                                                                <ul style="margin:6px 0 0 14px;padding:0">
-                                                                                        <li><strong><?php esc_html_e( 'Authentication Failure', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Bad credentials / OAuth token', 'bcs-smtp-manager' ); ?></li>
-                                                                                        <li><strong><?php esc_html_e( 'SMTP Rejection', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Server rejects the message', 'bcs-smtp-manager' ); ?></li>
-                                                                                        <li><strong><?php esc_html_e( 'Plugin / System Failure', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Timeout, DNS, PHP error', 'bcs-smtp-manager' ); ?></li>
-                                                                                </ul>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Alerts
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-alerts" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <!-- Section 1: Enable Automated Monitoring -->
-                                                <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable Automated Monitoring', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Tests SMTP connectivity on a schedule and alerts on failure', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-monitor-enabled" <?php checked( $monitor_on ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
-                                                        </div>
-
-                                                        <div id="bcs-smtp-monitor-accordion" class="bcs-smtp-accordion <?php echo $monitor_on ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(99,102,241,.15);color:var(--bcs-smtp-indigo)">
-                                                                                        <span class="dashicons dashicons-clock"></span>
-                                                                                </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'Monitor Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Check interval & failure threshold', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                        </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-check-interval"><?php esc_html_e( 'Check every', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Minutes between automated SMTP tests', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'minutes', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-check-interval" class="bcs-smtp-input" value="<?php echo esc_attr( $check_interval ); ?>" min="1" max="1440" style="max-width:100px">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'Default: 5 min. Changing this reschedules the cron event immediately.', 'bcs-smtp-manager' ); ?></small>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-failure-threshold"><?php esc_html_e( 'Alert after', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Consecutive failures before alerting', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'consecutive failures', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-failure-threshold" class="bcs-smtp-input" value="<?php echo esc_attr( $threshold ); ?>" min="1" max="10" style="max-width:100px">
-                                                                        </div>
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-max-alert-count"><?php esc_html_e( 'Stop after', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Maximum notifications per failure cycle. 0 = unlimited.', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'notifications', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-max-alert-count" class="bcs-smtp-input" value="<?php echo esc_attr( (int) get_option( BCS_SMTP_OPT_MAX_ALERT_COUNT, 0 ) ); ?>" min="0" max="100" style="max-width:100px">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( '0 = unlimited — resets automatically when SMTP recovers', 'bcs-smtp-manager' ); ?></small>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-
-                                                        <div style="margin-top:14px">
-                                                                <button type="button" id="bcs-smtp-save-monitor-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Monitor Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <div id="bcs-smtp-monitor-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
-                                                        </div>
-                                                </div>
-                                                </div>
-
-                                                <!-- Section 2: Alert Channel -->
-                                                <div class="bcs-smtp-card" style="margin-top:0">
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Alert Channel', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Send failure alerts via an independent notification channel', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-alert-channel-enabled" <?php checked( $alert_enabled ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
-                                                        </div>
-
-                                                        <div id="bcs-smtp-alert-channel-accordion" class="bcs-smtp-accordion <?php echo $alert_enabled ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(239,68,68,.12);color:var(--bcs-smtp-rose)">
-                                                                                        <span class="dashicons dashicons-megaphone"></span>
-                                                                                </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'Channel Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Slack or Microsoft Teams webhook', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                        </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label"><?php esc_html_e( 'Alert delivery method', 'bcs-smtp-manager' ); ?></label>
-                                                                                <div class="bcs-smtp-check-list" style="flex-direction:row;flex-wrap:wrap;gap:8px">
-                                                                                        <?php
-                                                                                        $channels = array(
-                                                                                                'slack'       => array( 'icon' => '💬', 'label' => __( 'Slack', 'bcs-smtp-manager' ) ),
-                                                                                                'teams'       => array( 'icon' => '🟦', 'label' => __( 'Teams', 'bcs-smtp-manager' ) ),
-                                                                                                'google_chat' => array( 'icon' => '🟢', 'label' => __( 'Google Chat', 'bcs-smtp-manager' ) ),
-                                                                                                'discord'     => array( 'icon' => '🟣', 'label' => __( 'Discord', 'bcs-smtp-manager' ) ),
-                                                                                                'custom'      => array( 'icon' => '🔗', 'label' => __( 'Custom Webhook', 'bcs-smtp-manager' ) ),
-                                                                                        );
-                                                                                        foreach ( $channels as $val => $ch ) : ?>
-                                                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:8px;padding:10px 16px;min-width:90px">
-                                                                                                <input type="radio" name="bcs_alert_channel" class="bcs-smtp-channel-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $alert_channel, $val ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                                                <span style="font-size:16px"><?php echo esc_html( $ch['icon'] ); ?></span>
-                                                                                                <div class="bcs-smtp-check-label-title"><?php echo esc_html( $ch['label'] ); ?></div>
-                                                                                        </label>
-                                                                                        <?php endforeach; ?>
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <div id="bcs-smtp-slack-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-slack-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-slack-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://hooks.slack.com/services/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Apps → Incoming Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://api.slack.com/messaging/webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-teams-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-teams-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-teams-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://outlook.office.com/webhook/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Channel → Connectors → Incoming Webhook', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-google-chat-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-google-chat-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-google-chat-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://chat.googleapis.com/v1/spaces/…/messages?key=…&token=…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Space → Apps & integrations → Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://developers.google.com/workspace/chat/quickstart/webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-discord-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-discord-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-discord-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://discord.com/api/webhooks/…/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Server Settings → Integrations → Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-custom-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-custom-webhook-url"><?php esc_html_e( 'Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-custom-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://example.com/your-webhook-endpoint">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <?php esc_html_e( 'Sends a structured JSON payload (event, site, error details, failure count) — use this with Zapier, Make, n8n, or your own endpoint.', 'bcs-smtp-manager' ); ?>
-                                                                                </small>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-
-                                                        <div style="margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;align-items:center">
-                                                                <button type="button" id="bcs-smtp-save-alerts-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Alert Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <button type="button" id="bcs-smtp-test-alert-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                        <span class="dashicons dashicons-megaphone"></span><?php esc_html_e( 'Send Test Alert', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                        </div>
-                                                        <div id="bcs-smtp-alerts-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
-                                                </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'How monitoring works', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group" style="gap:14px">
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">⏱ <?php esc_html_e( 'TCP-only test', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'WP-Cron connects to your SMTP server via TCP — no email is sent on successful checks.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">🔔 <?php esc_html_e( 'Failure-only alerts', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'Alerts only fire when consecutive failures hit your threshold. No noise on healthy checks.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">🔁 <?php esc_html_e( 'Auto-reset', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'When delivery recovers, the failure counter resets automatically.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                </div>
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-top:14px;margin-bottom:0">
-                                                                        <span class="dashicons dashicons-info-outline"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'WP-Cron fires on page load. For accurate intervals, point a real server', 'bcs-smtp-manager' ); ?> <code>crontab</code> <?php esc_html_e( 'at', 'bcs-smtp-manager' ); ?> <code>wp-cron.php</code>.</div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-shield"></span><?php esc_html_e( 'Alert message includes', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-check-list" style="gap:6px">
-                                                                        <?php
-                                                                        $fields = array(
-                                                                                __( 'Date and time of failure', 'bcs-smtp-manager' ),
-                                                                                __( 'Sending mailbox (from address)', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP host & port', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP plugin detected', 'bcs-smtp-manager' ),
-                                                                                __( 'Raw error message', 'bcs-smtp-manager' ),
-                                                                                __( 'Source IP address', 'bcs-smtp-manager' ),
-                                                                                __( 'Failure classification', 'bcs-smtp-manager' ),
-                                                                                __( 'Consecutive failure count', 'bcs-smtp-manager' ),
-                                                                                __( 'External provider status note', 'bcs-smtp-manager' ),
-                                                                        );
-                                                                        foreach ( $fields as $f ) : ?>
-                                                                        <div style="display:flex;align-items:center;gap:8px;font-size:12px;color:var(--bcs-smtp-text-2);padding:4px 0">
-                                                                                <span style="color:var(--bcs-smtp-emerald);font-size:14px">✓</span><?php echo wp_kses_post( $f ); ?>
-                                                                        </div>
-                                                                        <?php endforeach; ?>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Config
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-config" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-admin-generic"></span><?php esc_html_e( 'Detected SMTP Configuration', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Auto-detected from your active SMTP configuration. Credentials are never stored by this plugin beyond what you enter in Settings.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-server-grid">
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Plugin', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['plugin'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Version', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['version'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'SMTP Host', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono"><?php echo esc_html( $info['host'] ?: '—' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Port', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono"><?php echo esc_html( $info['port'] ?: '—' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( strtoupper( $info['encryption'] ?: '—' ) ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'From mailbox', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono" style="font-size:11px;word-break:break-all"><?php echo esc_html( $info['mailbox'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Auth method', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['auth_type'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'WordPress TZ', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( wp_timezone_string() ); ?></span>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-shield"></span><?php esc_html_e( 'What is tracked', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group" style="gap:6px">
-                                                                        <?php
-                                                                        $tracked = array(
-                                                                                sprintf(
-                                                                                        /* translators: %s: wp_mail() function name wrapped in <code> tags. */
-                                                                                        __( 'All %s sends (subject, from, to, status)', 'bcs-smtp-manager' ),
-                                                                                        '<code>wp_mail()</code>'
-                                                                                ),
-                                                                                __( 'SMTP plugin detected', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP hostname & port', 'bcs-smtp-manager' ),
-                                                                                __( 'Encryption method (TLS / SSL)', 'bcs-smtp-manager' ),
-                                                                                __( 'From mailbox (sender address)', 'bcs-smtp-manager' ),
-                                                                                __( 'Authentication type', 'bcs-smtp-manager' ),
-                                                                        );
-                                                                        foreach ( $tracked as $t ) : ?>
-                                                                        <div style="display:flex;align-items:center;gap:8px;font-size:12px;color:var(--bcs-smtp-text-2);padding:4px 0">
-                                                                                <span style="color:var(--bcs-smtp-indigo-h)">◈</span><?php echo wp_kses_post( $t ); ?>
-                                                                        </div>
-                                                                        <?php endforeach; ?>
-                                                                </div>
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-warning" style="margin-top:14px;margin-bottom:0">
-                                                                        <span class="dashicons dashicons-warning"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'Email body content is', 'bcs-smtp-manager' ); ?> <strong><?php esc_html_e( 'never', 'bcs-smtp-manager' ); ?></strong> <?php esc_html_e( 'stored by default — only metadata. The optional Resend feature below is the sole exception.', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-controls-repeat"></span><?php esc_html_e( 'Failed Email Resend', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'When enabled, the content of an email is stored only if it fails to send, so you can resend it from the Email Log. Off by default.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-toggle-row" style="margin-bottom:14px">
-                                                                        <div class="bcs-smtp-toggle-row-info">
-                                                                                <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Store failed email content', 'bcs-smtp-manager' ); ?></div>
-                                                                                <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Required for the Resend button to work — has no effect on emails that send successfully', 'bcs-smtp-manager' ); ?></div>
-                                                                        </div>
-                                                                        <label class="bcs-smtp-toggle">
-                                                                                <input type="checkbox" id="bcs-smtp-store-failed-body" <?php checked( $store_failed_body ); ?>>
-                                                                                <span class="bcs-smtp-toggle-slider"></span>
-                                                                        </label>
-                                                                </div>
-                                                                <div class="bcs-smtp-field">
-                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-failed-body-retention"><?php esc_html_e( 'Retention (days)', 'bcs-smtp-manager' ); ?></label>
-                                                                        <input type="number" id="bcs-smtp-failed-body-retention" class="bcs-smtp-input" style="max-width:120px" value="<?php echo esc_attr( $failed_body_retention ); ?>" min="1" max="30">
-                                                                        <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'Stored content is auto-purged after this many days, independent of the overall log retention setting.', 'bcs-smtp-manager' ); ?></small>
-                                                                </div>
-                                                                <div style="margin-top:14px">
-                                                                        <button type="button" id="bcs-smtp-save-resend-btn" class="bcs-smtp-btn bcs-smtp-btn-primary bcs-smtp-btn-sm">
-                                                                                <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <div id="bcs-smtp-resend-settings-msg" role="status" aria-live="polite" style="display:none;margin-top:10px;width:100%"></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-admin-links"></span><?php esc_html_e( 'Quick links', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group">
-                                                                        <a href="https://admin.microsoft.com/" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Microsoft 365 Admin', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://status.office365.com/" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Microsoft 365 Status', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://api.slack.com/messaging/webhooks" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Slack Webhook Guide', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Teams Webhook Guide', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
+                        </section>
 
                 </div><!-- /.bcs-smtp-wrap -->

bcs-smtp-manager/tags/1.3.0/assets/css/admin.css

@@ -1 +1 @@
 /* =====================================================================
-   CSS Variables - Dark Theme (default)
-   ===================================================================== */
-:root,
-[data-bcs-smtp-theme="dark"] {
-  --bcs-smtp-bg:#0f1117;--bcs-smtp-surface:#181c27;--bcs-smtp-surface-2:#1e2333;--bcs-smtp-surface-3:#252a3d;
-  --bcs-smtp-border:rgba(255,255,255,.07);--bcs-smtp-border-light:rgba(255,255,255,.12);
-  --bcs-smtp-indigo:#6366f1;--bcs-smtp-indigo-h:#818cf8;--bcs-smtp-indigo-dim:rgba(99,102,241,.15);--bcs-smtp-indigo-glow:rgba(99,102,241,.25);
-  --bcs-smtp-emerald:#10b981;--bcs-smtp-emerald-dim:rgba(16,185,129,.15);
-  --bcs-smtp-amber:#f59e0b;--bcs-smtp-amber-dim:rgba(245,158,11,.12);
-  --bcs-smtp-rose:#f43f5e;--bcs-smtp-rose-dim:rgba(244,63,94,.12);
-  --bcs-smtp-sky:#38bdf8;
-  --bcs-smtp-text:#e2e8f0;--bcs-smtp-text-2:#94a3b8;--bcs-smtp-text-3:#64748b;
-  --bcs-smtp-font:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--bcs-smtp-mono:ui-monospace,'Courier New',monospace;
-  --bcs-smtp-radius:10px;--bcs-smtp-radius-lg:16px;--bcs-smtp-radius-sm:6px;
-  --bcs-smtp-shadow:0 4px 24px rgba(0,0,0,.4);--bcs-smtp-t:.18s cubic-bezier(.4,0,.2,1);
-  --bcs-smtp-admin-bg:#0f1117;
-}
-
-html.wp-toolbar,body.wp-admin,#wpwrap,#wpcontent,#wpbody,#wpbody-content,#wpfooter { background:var(--bcs-smtp-admin-bg)!important; }
+   ByteCoreStack - SMTP & Health Monitor — admin UI
+   Dark, layered surfaces; #1450c4 for the primary action and active state.
+   ===================================================================== */
+
+@font-face{font-family:"BCS Outfit";src:url(../fonts/outfit-variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
+@font-face{font-family:"BCS Geist Mono";src:url(../fonts/geist-mono-variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
+
+:root{
+  --bcs-bg:#0a0e17;
+  --bcs-panel:#111725;
+  --bcs-raised:#161d2d;
+  --bcs-field:#0d1320;
+  --bcs-field-hover:#1a2234;
+  --bcs-seam:rgba(255,255,255,.07);
+  --bcs-seam-strong:rgba(255,255,255,.12);
+  --bcs-ink:#eef2f9;
+  --bcs-ink-2:#a7b2c7;
+  --bcs-ink-3:#808ca4;
+  --bcs-brand:#1450c4;
+  --bcs-brand-hover:#1c5fdc;
+  --bcs-brand-press:#0f3f9e;
+  --bcs-brand-ink:#8db4ff;
+  --bcs-brand-wash:rgba(20,80,196,.16);
+  --bcs-ok:#34d399;
+  --bcs-bad:#fb7185;
+  --bcs-warn:#fbbf24;
+  --bcs-off:#808ca4;
+  /* legacy aliases used by the other tabs */
+  --bcs-sent:var(--bcs-ok);--bcs-back:var(--bcs-bad);--bcs-held:var(--bcs-warn);
+  --bcs-font:"BCS Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
+  --bcs-mono:"BCS Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
+  --bcs-r:14px;
+  --bcs-r-sm:8px;
+  --bcs-shadow:inset 0 1px 0 rgba(255,255,255,.045),0 1px 2px rgba(0,0,0,.35),0 12px 32px -16px rgba(0,0,0,.65);
+  --bcs-ease:cubic-bezier(.22,1,.36,1);
+  --bcs-t:.18s var(--bcs-ease);
+}
+
+/* WordPress admin chrome on this screen only (stylesheet is enqueued for this page). */
+html.wp-toolbar,body.wp-admin,#wpwrap,#wpcontent,#wpbody,#wpbody-content{background:var(--bcs-bg)!important}
+#wpfooter{color:var(--bcs-ink-3)}
+#wpfooter a{color:var(--bcs-brand-ink)}
 
 .bcs-smtp-wrap,.bcs-smtp-wrap *{box-sizing:border-box}
-.bcs-smtp-wrap{font-family:var(--bcs-smtp-font);color:var(--bcs-smtp-text);max-width:none;width:100%;margin:0;padding:20px 20px 20px 0;overflow-x:hidden}
-.bcs-smtp-wrap h1,.bcs-smtp-wrap h2,.bcs-smtp-wrap h3{font-family:var(--bcs-smtp-font);color:var(--bcs-smtp-text)}
+.bcs-smtp-wrap{
+  font-family:var(--bcs-font);font-size:14px;line-height:1.55;color:var(--bcs-ink);
+  max-width:1320px;margin:0;padding:28px 24px 56px 8px;
+  font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
+  accent-color:var(--bcs-brand);color-scheme:dark;
+}
 .bcs-smtp-wrap .notice{display:none!important}
-.bcs-smtp-mono{font-family:var(--bcs-smtp-mono)}
+.bcs-smtp-wrap ::selection{background:rgba(141,180,255,.32);color:#fff}
+.bcs-smtp-wrap h1,.bcs-smtp-wrap h2,.bcs-smtp-wrap h3{font-family:var(--bcs-font);color:var(--bcs-ink);margin:0;padding:0;letter-spacing:-.015em}
+.bcs-smtp-wrap p{margin:0;font-size:14px}
+.bcs-smtp-wrap a{color:var(--bcs-brand-ink);text-underline-offset:3px}
+.bcs-smtp-wrap a:hover{color:#b3ccff}
+.bcs-smtp-wrap code{font-family:var(--bcs-mono);font-size:.86em;background:var(--bcs-field);color:var(--bcs-ink);padding:1px 5px;border-radius:4px}
+.bcs-smtp-wrap [hidden]{display:none!important}
+.bcs-smtp-mono{font-family:var(--bcs-mono);font-size:12.5px;letter-spacing:-.01em}
+.bcs-smtp-wrap :focus{outline:none;box-shadow:none}
+.bcs-smtp-wrap :focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:2px;border-radius:var(--bcs-r-sm)}
+.bcs-smtp-wrap *{scrollbar-width:thin;scrollbar-color:var(--bcs-seam-strong) transparent}
 
 /* =====================================================================
    Header
    ===================================================================== */
-.bcs-smtp-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 24px;background:linear-gradient(135deg,var(--bcs-smtp-surface-2) 0%,#1a1f33 100%);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius-lg);margin-bottom:24px}
-.bcs-smtp-header-left{display:flex;align-items:center;gap:14px;min-width:0}
-.bcs-smtp-header-right{display:flex;align-items:center;gap:10px}
-.bcs-smtp-header-icon{width:44px;height:44px;flex-shrink:0;background:var(--bcs-smtp-indigo-dim);border:1px solid var(--bcs-smtp-indigo);border-radius:var(--bcs-smtp-radius);display:flex;align-items:center;justify-content:center;box-shadow:0 0 20px var(--bcs-smtp-indigo-glow)}
-.bcs-smtp-header-icon .dashicons{color:var(--bcs-smtp-indigo);font-size:22px;width:22px;height:22px}
-.bcs-smtp-header h1{font-size:22px;font-weight:600;margin:0;color:var(--bcs-smtp-text);line-height:1}
-.bcs-smtp-header-sub{font-size:13px;color:var(--bcs-smtp-text-2);margin:3px 0 0;font-weight:400}
-.bcs-smtp-header-badge{font-size:11px;font-family:var(--bcs-smtp-mono);background:var(--bcs-smtp-surface-3);border:1px solid var(--bcs-smtp-border);color:var(--bcs-smtp-text-3);padding:4px 10px;border-radius:100px;white-space:nowrap}
-@media(max-width:600px){
-  .bcs-smtp-header-right{width:100%;justify-content:flex-start;padding-left:58px}
-}
-
-/* =====================================================================
-   Nav Tabs
-   ===================================================================== */
-.bcs-smtp-tabs{display:flex;gap:4px;margin-bottom:24px;border-bottom:1px solid var(--bcs-smtp-border);overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--bcs-smtp-surface-3) transparent}
-.bcs-smtp-tabs::-webkit-scrollbar{height:6px}
-.bcs-smtp-tabs::-webkit-scrollbar-track{background:transparent}
-.bcs-smtp-tabs::-webkit-scrollbar-thumb{background:var(--bcs-smtp-surface-3);border-radius:10px}
-.bcs-smtp-tab{display:inline-flex;align-items:center;gap:7px;padding:13px 18px;font-size:13px;font-weight:500;color:var(--bcs-smtp-text-2);border:none;background:transparent;border-bottom:4px solid transparent;margin-bottom:-1px;cursor:pointer;transition:color var(--bcs-smtp-t),border-color var(--bcs-smtp-t);font-family:var(--bcs-smtp-font);text-decoration:none;white-space:nowrap;flex-shrink:0}
-.bcs-smtp-tab:hover{color:var(--bcs-smtp-text)}
-.bcs-smtp-tab.active{color:var(--bcs-smtp-indigo-h);font-weight:600;border-bottom:4px solid var(--bcs-smtp-indigo)}
-.bcs-smtp-tab .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
+.bcs-smtp-brand{display:flex;align-items:center;gap:14px;min-width:0}
+.bcs-smtp-brand-mark{display:grid;place-items:center;width:42px;height:42px;flex-shrink:0;border-radius:11px;background:var(--bcs-brand);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 6px 16px -6px rgba(20,80,196,.7)}
+.bcs-smtp-brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-header h1{font-size:21px;font-weight:600;line-height:1.2;letter-spacing:-.02em}
+.bcs-smtp-header-sub{font-size:13px!important;color:var(--bcs-ink-3);margin-top:2px!important}
+.bcs-smtp-header-actions{display:flex;gap:10px}
+
+/* =====================================================================
+   Tabs
+   ===================================================================== */
+.bcs-smtp-tabs{position:relative;display:flex;gap:4px;width:fit-content;max-width:100%;padding:5px;margin-bottom:24px;background:var(--bcs-panel);border:1px solid var(--bcs-seam);border-radius:12px;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:none}
+.bcs-smtp-tabs::-webkit-scrollbar{display:none}
+.bcs-smtp-tab{
+  appearance:none;border:0;background:none;cursor:pointer;flex-shrink:0;white-space:nowrap;
+  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;margin:0;
+  font:500 14px/1 var(--bcs-font);color:var(--bcs-ink-3);border-radius:8px;
+  transition:color var(--bcs-t),background var(--bcs-t),box-shadow var(--bcs-t);
+}
+.bcs-smtp-tab .dashicons{font-size:17px;width:17px;height:17px;color:var(--bcs-ink-3);transition:color var(--bcs-t)}
+.bcs-smtp-tab:hover{color:var(--bcs-ink);background:var(--bcs-field)}
+.bcs-smtp-tab:hover .dashicons{color:var(--bcs-ink-2)}
+.bcs-smtp-tab[aria-selected="true"]{color:var(--bcs-ink);background:var(--bcs-brand-wash);box-shadow:inset 0 0 0 1px rgba(77,134,240,.38)}
+.bcs-smtp-tab[aria-selected="true"] .dashicons{color:var(--bcs-brand-ink)}
+.bcs-smtp-tab:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+.bcs-smtp-tab{position:relative;z-index:1}
+.bcs-smtp-tab-pill{position:absolute;top:0;left:0;width:0;height:0;border-radius:8px;background:var(--bcs-brand-wash);box-shadow:inset 0 0 0 1px rgba(77,134,240,.38);opacity:0;pointer-events:none;transition:transform .32s var(--bcs-ease),width .32s var(--bcs-ease)}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab-pill{opacity:1}
+.bcs-smtp-tabs.is-instant .bcs-smtp-tab-pill{transition:none}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab[aria-selected="true"]{background:transparent;box-shadow:none}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab:not([aria-selected="true"]):hover{background:var(--bcs-field)}
+.bcs-smtp-tab-dot{width:7px;height:7px;border-radius:50%;background:var(--bcs-ink-3);margin-left:-2px}
+.bcs-smtp-tab-dot[data-tone="ok"]{background:var(--bcs-ok)}
+.bcs-smtp-tab-dot[data-tone="bad"]{background:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-tab-dot[data-tone="warn"]{background:var(--bcs-warn)}
+.bcs-smtp-tab-dot:not([data-tone]){display:none}
+.bcs-smtp-tab-count{min-width:20px;text-align:center;font:600 11px/1 var(--bcs-font);font-variant-numeric:tabular-nums;padding:3px 6px;border-radius:99px;background:rgba(251,113,133,.16);color:var(--bcs-bad)}
 .bcs-smtp-tab-panel{display:none}
-.bcs-smtp-tab-panel.active{display:block}
-
-/* =====================================================================
-   Card
-   ===================================================================== */
-.bcs-smtp-card{background:var(--bcs-smtp-surface);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius-lg);margin-bottom:20px;position:relative;overflow:hidden}
-.bcs-smtp-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.3),transparent)}
-.bcs-smtp-card-header{padding:20px 24px 16px;border-bottom:1px solid var(--bcs-smtp-border)}
-.bcs-smtp-card-body{padding:24px}
-.bcs-smtp-card-title{font-size:14px;font-weight:600;color:var(--bcs-smtp-text);margin:0 0 4px;display:flex;align-items:center;gap:8px}
-.bcs-smtp-card-title .dashicons{color:var(--bcs-smtp-indigo);font-size:16px;width:16px;height:16px}
-.bcs-smtp-card-desc{font-size:13px;color:var(--bcs-smtp-text-2);margin:0;line-height:1.6}
-
-/* =====================================================================
-   Grid
-   ===================================================================== */
-.bcs-smtp-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px;align-items:start;min-width:0}
-.bcs-smtp-grid>div{min-width:0}
-@media(max-width:900px){.bcs-smtp-grid{grid-template-columns:1fr}}
-
-/* =====================================================================
-   Stat Row
-   ===================================================================== */
-.bcs-smtp-stat-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--bcs-smtp-border)}
-.bcs-smtp-stat{flex:1;min-width:160px;padding:14px 16px;background:var(--bcs-smtp-surface-2);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);display:flex;align-items:center;gap:14px}
-.bcs-smtp-stat-icon{width:36px;height:36px;border-radius:var(--bcs-smtp-radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--bcs-smtp-indigo-dim);color:var(--bcs-smtp-indigo-h);border:1px solid rgba(99,102,241,.3)}
-.bcs-smtp-stat-icon .dashicons{font-size:18px;width:18px;height:18px}
-.bcs-smtp-stat-icon.good{background:var(--bcs-smtp-emerald-dim);color:var(--bcs-smtp-emerald);border-color:rgba(16,185,129,.3)}
-.bcs-smtp-stat-icon.bad{background:var(--bcs-smtp-rose-dim);color:var(--bcs-smtp-rose);border-color:rgba(244,63,94,.3)}
-.bcs-smtp-stat-body{min-width:0}
-.bcs-smtp-stat-value{font-size:20px;font-weight:600;color:var(--bcs-smtp-text);line-height:1;font-family:var(--bcs-smtp-mono)}
-.bcs-smtp-stat-label{font-size:11px;color:var(--bcs-smtp-text-3);margin-top:4px;text-transform:uppercase;letter-spacing:.06em}
-.bcs-smtp-stat-value.good{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-stat-value.bad{color:var(--bcs-smtp-rose)}
+.bcs-smtp-tab-panel.active{display:block;animation:bcs-panel-in .24s var(--bcs-ease)}
+@keyframes bcs-panel-in{from{opacity:.35;transform:translateY(6px)}to{opacity:1;transform:none}}
+
+/* =====================================================================
+   Panels & layout
+   ===================================================================== */
+.bcs-smtp-panel{background:var(--bcs-panel);border:1px solid var(--bcs-seam);border-radius:var(--bcs-r);padding:24px;min-width:0;box-shadow:var(--bcs-shadow)}
+.bcs-smtp-panel + .bcs-smtp-panel{margin-top:20px}
+.bcs-smtp-panel--flush{padding:0;overflow:hidden}
+.bcs-smtp-panel h2{font-size:16px;font-weight:600;line-height:1.3;margin-bottom:6px}
+.bcs-smtp-panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px 12px;margin-bottom:18px;flex-wrap:wrap}
+.bcs-smtp-panel-head h2{margin:0;display:flex;align-items:center;gap:10px}
+.bcs-smtp-panel-sub{font-size:13px!important;color:var(--bcs-ink-3)}
+.bcs-smtp-stack{display:flex;flex-direction:column;gap:20px;min-width:0}
+.bcs-smtp-stack > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-split{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr);gap:20px;align-items:start}
+.bcs-smtp-split > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-split > .bcs-smtp-test{position:sticky;top:52px}
+.bcs-smtp-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
+.bcs-smtp-count{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 7px;border-radius:99px;font:600 12px/1 var(--bcs-font);background:var(--bcs-raised);color:var(--bcs-ink-2)}
+.bcs-smtp-count--bad{background:rgba(251,113,133,.15);color:var(--bcs-bad)}
 
 /* =====================================================================
    Buttons
    ===================================================================== */
-.bcs-smtp-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--bcs-smtp-radius);font-size:14px;font-weight:600;font-family:var(--bcs-smtp-font);cursor:pointer;border:none;transition:all var(--bcs-smtp-t);text-decoration:none;white-space:nowrap;line-height:1}
-.bcs-smtp-btn-primary{background:linear-gradient(135deg,var(--bcs-smtp-indigo),#7c3aed);color:#fff;box-shadow:0 4px 14px var(--bcs-smtp-indigo-glow)}
-.bcs-smtp-btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--bcs-smtp-indigo-glow);color:#fff}
-.bcs-smtp-btn-primary:active{transform:translateY(0)}
-.bcs-smtp-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
-.bcs-smtp-btn-secondary{background:var(--bcs-smtp-surface-2);border:1px solid var(--bcs-smtp-border-light);color:var(--bcs-smtp-text-2)}
-.bcs-smtp-btn-secondary:hover{background:var(--bcs-smtp-surface-3);color:var(--bcs-smtp-text)}
-.bcs-smtp-btn-danger{background:var(--bcs-smtp-rose-dim);border:1px solid rgba(244,63,94,.3);color:var(--bcs-smtp-rose)}
-.bcs-smtp-btn-danger:hover{background:var(--bcs-smtp-rose);color:#fff}
-.bcs-smtp-btn-sm{padding:7px 14px;font-size:12px}
+.bcs-smtp-btn{
+  appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;
+  min-height:38px;padding:0 16px;border-radius:var(--bcs-r-sm);border:1px solid transparent;
+  font:600 14px/1 var(--bcs-font);text-decoration:none;white-space:nowrap;cursor:pointer;
+  transition:background var(--bcs-t),border-color var(--bcs-t),color var(--bcs-t),transform .08s ease;
+}
+.bcs-smtp-btn:active:not(:disabled){transform:translateY(1px)}
+.bcs-smtp-btn:disabled,.bcs-smtp-btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}
 .bcs-smtp-btn .dashicons{font-size:16px;width:16px;height:16px}
-.bcs-smtp-btn-full{width:100%}
-
-/* =====================================================================
-   Toggle (on/off switch)
-   ===================================================================== */
-.bcs-smtp-toggle{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}
-.bcs-smtp-toggle input{display:none}
-.bcs-smtp-toggle-slider{position:absolute;inset:0;cursor:pointer;background:var(--bcs-smtp-surface-3);border-radius:100px;border:1px solid var(--bcs-smtp-border-light);transition:all var(--bcs-smtp-t)}
-.bcs-smtp-toggle-slider::before{content:'';position:absolute;width:16px;height:16px;left:3px;top:50%;transform:translateY(-50%);background:var(--bcs-smtp-text-3);border-radius:50%;transition:all var(--bcs-smtp-t)}
-.bcs-smtp-toggle input:checked+.bcs-smtp-toggle-slider{background:var(--bcs-smtp-indigo);border-color:var(--bcs-smtp-indigo)}
-.bcs-smtp-toggle input:checked+.bcs-smtp-toggle-slider::before{transform:translate(20px,-50%);background:#fff}
-
-.bcs-smtp-toggle-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
-.bcs-smtp-toggle-row-info{flex:1}
-.bcs-smtp-toggle-row-label{font-size:14px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-toggle-row-desc{font-size:12px;color:var(--bcs-smtp-text-3);margin-top:2px}
-
-/* =====================================================================
-   Accordion
-   ===================================================================== */
-.bcs-smtp-accordion{border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);margin-top:16px;overflow:hidden}
-.bcs-smtp-accordion-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--bcs-smtp-surface-2);cursor:pointer;user-select:none;transition:background var(--bcs-smtp-t);border:none;width:100%;text-align:left;font-family:var(--bcs-smtp-font)}
-.bcs-smtp-accordion-head:hover{background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-accordion-head-left{display:flex;align-items:center;gap:10px}
-.bcs-smtp-accordion-head-icon{width:32px;height:32px;border-radius:var(--bcs-smtp-radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
-.bcs-smtp-accordion-head-icon .dashicons{font-size:16px;width:16px;height:16px}
-.bcs-smtp-accordion-head-title{font-size:13px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-accordion-head-desc{font-size:12px;color:var(--bcs-smtp-text-2);margin-top:1px}
-.bcs-smtp-accordion-chevron{color:var(--bcs-smtp-text-3);transition:transform var(--bcs-smtp-t);font-size:16px;width:16px;height:16px}
-.bcs-smtp-accordion.open .bcs-smtp-accordion-chevron{transform:rotate(180deg)}
-.bcs-smtp-accordion-body{display:none;padding:18px;border-top:1px solid var(--bcs-smtp-border);background:var(--bcs-smtp-bg)}
-.bcs-smtp-accordion.open .bcs-smtp-accordion-body{display:block}
-.bcs-smtp-accordion-header{display:flex;align-items:center;gap:10px;padding:14px 18px;background:var(--bcs-smtp-surface-2);cursor:pointer;user-select:none;transition:background var(--bcs-smtp-t);border:none;width:100%;text-align:left;font-family:var(--bcs-smtp-font);font-size:13px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-accordion-header:hover{background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-accordion-arrow{transition:transform var(--bcs-smtp-t);color:var(--bcs-smtp-text-3);font-size:16px;width:16px;height:16px}
-
-/* =====================================================================
-   Fields / Inputs
-   ===================================================================== */
-.bcs-smtp-field{margin-top:14px}
-.bcs-smtp-field-label{font-size:12px;color:var(--bcs-smtp-text-2);display:block;margin-bottom:6px}
-.bcs-smtp-input{width:100%;padding:10px 14px;background:var(--bcs-smtp-surface-2)!important;border:1px solid var(--bcs-smtp-border-light)!important;border-radius:var(--bcs-smtp-radius-sm);color:var(--bcs-smtp-text)!important;font-size:13px;font-family:var(--bcs-smtp-mono);transition:border-color var(--bcs-smtp-t),box-shadow var(--bcs-smtp-t);outline:none;box-sizing:border-box;box-shadow:none!important}
-input.bcs-smtp-input,select.bcs-smtp-input{height:38px!important;min-height:38px}
-.bcs-smtp-input:focus{border-color:var(--bcs-smtp-indigo)!important;box-shadow:0 0 0 3px var(--bcs-smtp-indigo-dim)!important}
-textarea.bcs-smtp-input{font-family:var(--bcs-smtp-font);resize:vertical;min-height:60px;height:auto!important}
-select.bcs-smtp-input{appearance:none!important;-webkit-appearance:none!important;padding-right:36px!important;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E")!important;background-repeat:no-repeat!important;background-position:right 12px center!important;background-size:12px!important;cursor:pointer}
-select.bcs-smtp-input option{background:var(--bcs-smtp-surface-2);color:var(--bcs-smtp-text)}
-.bcs-smtp-field-group{display:flex;flex-direction:column;gap:12px}
-
-/* Two-up field row — e.g. From Email/Name, Host/Port, Username/Password, Recipients/Frequency */
-.bcs-smtp-field-row{display:flex;gap:16px;margin-top:14px}
-.bcs-smtp-field-row .bcs-smtp-field{flex:1;min-width:0;margin-top:0}
-@media(max-width:600px){
-  .bcs-smtp-field-row{flex-direction:column;gap:14px}
-}
-
-/* Password field — show/hide eye toggle */
+.bcs-smtp-btn-primary{background:var(--bcs-brand);color:#fff}
+.bcs-smtp-btn-primary:hover:not(:disabled){background:var(--bcs-brand-hover);color:#fff}
+.bcs-smtp-btn-primary:active:not(:disabled){background:var(--bcs-brand-press)}
+.bcs-smtp-btn-secondary{background:var(--bcs-field);border-color:var(--bcs-seam-strong);color:var(--bcs-ink)}
+.bcs-smtp-btn-secondary:hover:not(:disabled){background:var(--bcs-field-hover);color:#fff;border-color:#40507a}
+.bcs-smtp-btn-sm{min-height:30px;padding:0 12px;font-size:13px}
+.bcs-smtp-btn-lg{min-height:44px;padding:0 22px;font-size:15px}
+.bcs-smtp-btn.is-busy{cursor:progress}
+.bcs-smtp-btn.is-busy::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:bcs-spin .7s linear infinite}
+@keyframes bcs-spin{to{transform:rotate(360deg)}}
+.bcs-smtp-link{appearance:none;background:none;border:0;padding:0;cursor:pointer;font:600 13px/1.4 var(--bcs-font);color:var(--bcs-brand-ink);text-decoration:underline;text-decoration-color:rgba(141,180,255,.35);text-underline-offset:3px}
+.bcs-smtp-link:hover{color:#b3ccff;text-decoration-color:currentColor}
+
+/* =====================================================================
+   Status chips — one vocabulary for every email's delivery state
+   ===================================================================== */
+.bcs-smtp-status{
+  --tone:var(--bcs-off);
+  display:inline-flex;align-items:center;gap:7px;height:24px;padding:0 10px 0 8px;border-radius:7px;white-space:nowrap;
+  font:500 12.5px/1 var(--bcs-font);color:var(--bcs-ink);
+  background:color-mix(in srgb,var(--tone) 12%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--tone) 24%,transparent);
+}
+.bcs-smtp-status-dot{width:7px;height:7px;border-radius:50%;background:var(--tone);flex-shrink:0}
+.bcs-smtp-status--ok{--tone:var(--bcs-ok)}
+.bcs-smtp-status--bad{--tone:var(--bcs-bad)}
+.bcs-smtp-status--warn{--tone:var(--bcs-warn)}
+.bcs-smtp-status.is-updated{animation:bcs-chip-in .32s var(--bcs-ease)}
+@keyframes bcs-chip-in{from{transform:scale(.9);opacity:.2}to{transform:none;opacity:1}}
+
+.bcs-smtp-key{display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--bcs-off);flex-shrink:0}
+.bcs-smtp-key--ok{background:var(--bcs-ok)}
+.bcs-smtp-key--sent{background:var(--bcs-brand-ink)}
+.bcs-smtp-key--bad{background:var(--bcs-bad)}
+.bcs-smtp-key--warn{background:var(--bcs-warn)}
+
+/* =====================================================================
+   Overview
+   ===================================================================== */
+
+/* Health banner — the one thing to read first */
+.bcs-smtp-hero{
+  --tone:var(--bcs-off);
+  position:relative;overflow:hidden;border-radius:var(--bcs-r);padding:28px 28px 0;
+  background:color-mix(in srgb,var(--tone) 8%,var(--bcs-panel));
+  border:1px solid color-mix(in srgb,var(--tone) 38%,transparent);box-shadow:var(--bcs-shadow);
+}
+.bcs-smtp-hero--ok{--tone:var(--bcs-ok)}
+.bcs-smtp-hero--bad{--tone:var(--bcs-bad)}
+.bcs-smtp-hero--warn{--tone:var(--bcs-warn)}
+.bcs-smtp-hero--off{--tone:var(--bcs-off)}
+.bcs-smtp-hero-main{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:20px;padding-bottom:26px}
+.bcs-smtp-hero-copy h2{font-size:26px;font-weight:600;line-height:1.15;letter-spacing:-.025em;margin-bottom:6px}
+.bcs-smtp-hero-copy p{color:var(--bcs-ink-2);font-size:14.5px;max-width:64ch}
+.bcs-smtp-hero-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
+
+.bcs-smtp-beacon{position:relative;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:color-mix(in srgb,var(--tone) 14%,transparent);border:1px solid color-mix(in srgb,var(--tone) 30%,transparent)}
+.bcs-smtp-beacon span{width:16px;height:16px;border-radius:50%;background:var(--tone);box-shadow:inset 0 -2px 0 rgba(0,0,0,.18)}
+.bcs-smtp-beacon::after{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--tone);opacity:0}
+.bcs-smtp-hero--ok .bcs-smtp-beacon::after{animation:bcs-beacon 2.8s var(--bcs-ease) infinite}
+@keyframes bcs-beacon{0%{transform:scale(1);opacity:.55}70%,100%{transform:scale(1.55);opacity:0}}
+
+.bcs-smtp-hero-facts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0 -28px;border-top:1px solid color-mix(in srgb,var(--tone) 22%,transparent);background:color-mix(in srgb,var(--tone) 4%,var(--bcs-panel))}
+.bcs-smtp-hero-facts > div{padding:14px 28px;min-width:0;border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-hero-facts > div:first-child{border-left:0}
+.bcs-smtp-hero-facts dt{font-size:12px;color:var(--bcs-ink-3);margin-bottom:3px}
+.bcs-smtp-hero-facts dd{margin:0;font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-hero-msg{margin:0;padding:0 0 18px}
+.bcs-smtp-hero-msg:empty{display:none}
+
+/* Grid: activity chart + setup checklist */
+.bcs-smtp-overview-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;margin-top:20px;align-items:start}
+.bcs-smtp-overview-grid{align-items:stretch}
+.bcs-smtp-overview-grid > .bcs-smtp-activity{display:flex;flex-direction:column}
+.bcs-smtp-overview-grid > .bcs-smtp-activity .bcs-smtp-linechart{flex:1 1 auto;min-height:200px;height:auto}
+.bcs-smtp-side{display:flex;flex-direction:column;gap:20px;min-width:0}
+.bcs-smtp-side > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-side > .bcs-smtp-quick{flex:1 1 auto;display:flex;flex-direction:column}
+.bcs-smtp-quick .bcs-smtp-quick-list{flex:1 1 auto;justify-content:space-evenly}
+.bcs-smtp-side .bcs-smtp-panel{padding:20px 22px}
+.bcs-smtp-side .bcs-smtp-panel-head{margin-bottom:14px}
+
+/* Quick actions */
+.bcs-smtp-quick-list{list-style:none;margin:0 -12px;padding:0;display:flex;flex-direction:column;gap:2px}
+.bcs-smtp-quick-list li{margin:0}
+.bcs-smtp-quick-list button{appearance:none;width:100%;display:flex;align-items:center;gap:12px;padding:7px 12px;border:0;border-radius:10px;background:none;cursor:pointer;text-align:left;color:var(--bcs-ink);font-family:var(--bcs-font);transition:background var(--bcs-t)}
+.bcs-smtp-quick-list button:hover{background:rgba(255,255,255,.04)}
+.bcs-smtp-quick-icon{display:grid!important;place-items:center;width:32px!important;height:32px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:18px!important}
+.bcs-smtp-quick-icon--bad{background:rgba(251,113,133,.13);color:var(--bcs-bad)}
+.bcs-smtp-quick-icon--ok{background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-quick-text{display:flex;flex-direction:column;min-width:0;flex:1}
+.bcs-smtp-quick-text strong{font-weight:500;font-size:14px}
+.bcs-smtp-quick-text small{font-size:12.5px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-quick-list button > .dashicons:last-child{color:var(--bcs-ink-3);font-size:16px;width:16px;height:16px;transition:transform var(--bcs-t),color var(--bcs-t)}
+.bcs-smtp-quick-list button:hover > .dashicons:last-child{color:var(--bcs-ink);transform:translateX(2px)}
+.bcs-smtp-overview-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+
+/* Email activity — line chart */
+.bcs-smtp-segmented--sm{padding:2px}
+.bcs-smtp-segmented--sm span{min-height:28px;padding:0 11px;font-size:12.5px}
+.bcs-smtp-linechart{position:relative;height:260px;margin:0 -6px;border-radius:var(--bcs-r-sm);cursor:crosshair}
+.bcs-smtp-linechart:focus-visible{outline-offset:4px}
+.bcs-smtp-linechart svg{display:block;width:100%;height:100%;overflow:visible}
+.bcs-smtp-lc-grid line{stroke:var(--bcs-seam);stroke-width:1}
+.bcs-smtp-lc-grid line.is-base{stroke:var(--bcs-seam-strong)}
+.bcs-smtp-lc-label{fill:var(--bcs-ink-3);font:500 11.5px var(--bcs-font)}
+.bcs-smtp-lc-area{fill:var(--bcs-brand-ink);opacity:.1}
+.bcs-smtp-lc-line{fill:none;stroke-width:2.25;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-lc-line.is-sent{stroke:var(--bcs-brand-ink)}
+.bcs-smtp-lc-line.is-failed{stroke:var(--bcs-bad)}
+.bcs-smtp-lc-line.is-unconfirmed{stroke:var(--bcs-warn);stroke-dasharray:4 4}
+.bcs-smtp-lc-line{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:bcs-draw .9s var(--bcs-ease) forwards}
+.bcs-smtp-lc-line.is-unconfirmed{animation:none;stroke-dashoffset:0}
+@keyframes bcs-draw{to{stroke-dashoffset:0}}
+.bcs-smtp-lc-cursor{stroke:var(--bcs-ink-3);stroke-width:1;stroke-dasharray:3 3;opacity:0;transition:opacity .12s}
+.bcs-smtp-lc-dot{stroke:var(--bcs-panel);stroke-width:2.5;opacity:0;transition:opacity .12s}
+.bcs-smtp-linechart.is-hover .bcs-smtp-lc-cursor,.bcs-smtp-linechart.is-hover .bcs-smtp-lc-dot{opacity:1}
+.bcs-smtp-linechart-tip{position:absolute;top:0;z-index:2;min-width:168px;padding:10px 12px;border-radius:10px;pointer-events:none;
+  background:#0a0e17;border:1px solid var(--bcs-seam-strong);box-shadow:0 10px 28px -8px rgba(0,0,0,.7);font-size:13px;line-height:1.5;transform:translateX(-50%)}
+.bcs-smtp-linechart-tip strong{display:block;font-weight:600;margin-bottom:4px}
+.bcs-smtp-linechart-tip span{display:flex;align-items:center;gap:8px;color:var(--bcs-ink-2)}
+.bcs-smtp-linechart-tip b{margin-left:auto;color:var(--bcs-ink);font-weight:600}
+.bcs-smtp-activity-foot{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:16px -24px -24px!important;padding:14px 24px;border-top:1px solid var(--bcs-seam);border-radius:0 0 var(--bcs-r) var(--bcs-r);background:rgba(0,0,0,.14);font-size:13.5px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-activity .bcs-smtp-chart-empty{margin-top:-140px!important;text-align:center;color:var(--bcs-ink-3);position:relative}
+
+/* Finish setting up */
+.bcs-smtp-progress{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;margin:-6px 0 18px}
+.bcs-smtp-progress span{height:4px;border-radius:2px;background:var(--bcs-seam-strong)}
+.bcs-smtp-progress span.is-done{background:var(--bcs-brand)}
+.bcs-smtp-checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
+.bcs-smtp-checklist li{display:flex;align-items:center;gap:12px;margin:0;padding:8px 0;border-top:1px solid var(--bcs-seam);font-size:14px}
+.bcs-smtp-checklist li:first-child{border-top:0;padding-top:0}
+.bcs-smtp-checklist li.is-done{color:var(--bcs-ink-3)}
+.bcs-smtp-check-dot{display:grid!important;place-items:center;width:20px!important;height:20px!important;border-radius:50%;border:1.5px solid var(--bcs-seam-strong);font-size:15px!important;flex-shrink:0}
+.is-done .bcs-smtp-check-dot{border-color:transparent;background:rgba(52,211,153,.16);color:var(--bcs-ok)}
+.bcs-smtp-link--plain{display:inline-flex;align-items:center;gap:4px;text-decoration:none;color:var(--bcs-ink)!important;font-weight:500;font-size:14px}
+.bcs-smtp-link--plain .dashicons{font-size:15px;width:15px;height:15px;color:var(--bcs-brand-ink);transition:transform var(--bcs-t)}
+.bcs-smtp-link--plain:hover .dashicons{transform:translateX(2px)}
+
+/* Last 30 days */
+.bcs-smtp-figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0 0 22px}
+.bcs-smtp-figures > div{min-width:0}
+.bcs-smtp-figures dt{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-figures dd{margin:6px 0 0;font:600 28px/1 var(--bcs-font);letter-spacing:-.03em;color:var(--bcs-ink);white-space:nowrap}
+.bcs-smtp-figures dd.is-bad{color:var(--bcs-bad)}
+.bcs-smtp-figures dd small{font-size:16px;font-weight:500;color:var(--bcs-ink-3);margin-left:1px;letter-spacing:0}
+
+
+/* Fact grid (Settings → What WordPress is using) */
+.bcs-smtp-facts{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-facts > div{padding:11px 0;border-bottom:1px solid var(--bcs-seam);min-width:0}
+.bcs-smtp-facts > div:nth-child(odd){padding-right:14px}
+.bcs-smtp-facts dt{font-size:12px;color:var(--bcs-ink-3)}
+.bcs-smtp-facts dd{margin:2px 0 0;font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-facts--plain{margin-top:14px}
+
+/* =====================================================================
+   Guided setup — providers, steps, fields
+   ===================================================================== */
+
+.bcs-smtp-provider-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:8px}
+.bcs-smtp-provider-grid--compact{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
+.bcs-smtp-provider{
+  position:relative;display:flex;align-items:center;gap:10px;min-height:52px;padding:8px 12px;cursor:pointer;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam);border-radius:var(--bcs-r-sm);
+  font:500 13.5px/1.25 var(--bcs-font);color:var(--bcs-ink);text-align:left;
+  transition:border-color var(--bcs-t),background var(--bcs-t);
+}
+button.bcs-smtp-provider{appearance:none;width:100%}
+.bcs-smtp-provider:hover{border-color:var(--bcs-seam-strong);background:var(--bcs-field-hover)}
+.bcs-smtp-provider input{position:absolute;opacity:0;width:1px;height:1px;margin:0;pointer-events:none}
+.bcs-smtp-provider-mark{display:grid;place-items:center;width:32px;height:32px;flex-shrink:0;border-radius:6px;background:var(--bcs-panel);border:1px solid var(--bcs-seam-strong);font:700 12px/1 var(--bcs-font);letter-spacing:.02em;color:var(--bcs-ink-2);transition:background var(--bcs-t),color var(--bcs-t),border-color var(--bcs-t)}
+.bcs-smtp-provider .bcs-smtp-provider-mark{background:color-mix(in srgb,var(--tone) 15%,var(--bcs-panel));border-color:color-mix(in srgb,var(--tone) 38%,transparent);color:color-mix(in srgb,var(--tone) 75%,#fff)}
+.bcs-smtp-provider-mark .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-provider:has(input:checked){border-color:var(--bcs-brand);background:var(--bcs-brand-wash)}
+.bcs-smtp-provider:has(input:checked) .bcs-smtp-provider-mark{background:var(--tone);border-color:var(--tone);color:#fff}
+.bcs-smtp-provider:has(input:focus-visible){outline:2px solid var(--bcs-brand-ink);outline-offset:2px}
+
+.bcs-smtp-provider-note{display:flex;gap:10px;align-items:flex-start;margin-top:14px!important;padding:12px 14px;border-radius:var(--bcs-r-sm);background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13.5px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-provider-note .dashicons{color:var(--bcs-brand-ink);font-size:18px;width:18px;height:18px;flex-shrink:0}
+.bcs-smtp-provider-note a{font-weight:600;margin-left:4px}
+
+.bcs-smtp-field{display:flex;flex-direction:column;min-width:0;margin-top:16px}
+.bcs-smtp-field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
+.bcs-smtp-field-row .bcs-smtp-field{margin-top:16px}
+.bcs-smtp-field-row:has(.bcs-smtp-field--port){grid-template-columns:minmax(0,1fr) 120px}
+.bcs-smtp-field-row:has(> .bcs-smtp-field--grow:first-child):not(:has(.bcs-smtp-field--port)){grid-template-columns:minmax(0,1fr) auto}
+.bcs-smtp-field-label{font-size:13px;font-weight:600;color:var(--bcs-ink);margin-bottom:6px;display:block}
+.bcs-smtp-hint{display:block;font-size:12.5px;color:var(--bcs-ink-3);margin-top:6px;line-height:1.45}
+.bcs-smtp-hint.is-good{color:var(--bcs-sent)}
+.bcs-smtp-hint.is-bad{color:var(--bcs-back)}
+
+.bcs-smtp-wrap .bcs-smtp-input{
+  width:100%;min-height:40px;height:40px;padding:0 12px;margin:0;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm);
+  color:var(--bcs-ink);font:400 14px/1.4 var(--bcs-font);box-shadow:none;
+  transition:border-color var(--bcs-t),box-shadow var(--bcs-t),background var(--bcs-t);
+}
+.bcs-smtp-wrap .bcs-smtp-input.bcs-smtp-mono{font-family:var(--bcs-mono);font-size:13px}
+.bcs-smtp-wrap .bcs-smtp-input::placeholder{color:#6f7c97}
+.bcs-smtp-wrap .bcs-smtp-input:hover{border-color:#40507a}
+.bcs-smtp-wrap .bcs-smtp-input:focus{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 3px rgba(141,180,255,.18);outline:none}
+.bcs-smtp-wrap .bcs-smtp-input:disabled{opacity:.6}
+.bcs-smtp-wrap .bcs-smtp-input.is-invalid{border-color:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-wrap .bcs-smtp-input--num{width:76px;text-align:center;padding:0 6px}
+.bcs-smtp-wrap .bcs-smtp-select{
+  appearance:none;-webkit-appearance:none;width:auto;min-width:150px;padding-right:34px;cursor:pointer;
+  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23aab5ca' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
+  background-repeat:no-repeat;background-position:right 12px center;background-size:12px;
+}
+.bcs-smtp-wrap .bcs-smtp-select--sm{min-width:72px;min-height:30px;height:30px;font-size:13px}
+.bcs-smtp-wrap select.bcs-smtp-input option{background:var(--bcs-field);color:var(--bcs-ink)}
+/* WordPress core darkens select text on hover/focus (#1e1e1e), which vanishes on this theme. */
+.wp-core-ui .bcs-smtp-wrap select.bcs-smtp-input:hover,.wp-core-ui .bcs-smtp-wrap select.bcs-smtp-input:focus{color:var(--bcs-ink)}
+
 .bcs-smtp-pw-wrap{position:relative}
-.bcs-smtp-pw-wrap input{padding-right:40px!important}
-.bcs-smtp-pw-eye{position:absolute;top:50%;right:6px;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:transparent;border:none;cursor:pointer;color:var(--bcs-smtp-text-3);border-radius:4px;transition:color var(--bcs-smtp-t),background var(--bcs-smtp-t)}
-.bcs-smtp-pw-eye:hover{color:var(--bcs-smtp-text);background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-pw-eye .dashicons{font-size:16px;width:16px;height:16px}
-
-/* Cancel-password-change link — pulses briefly each time it's revealed */
-@keyframes bcs-smtp-pw-cancel-pulse{
-  0%{background:rgba(99,102,241,.3);box-shadow:0 0 0 4px rgba(99,102,241,.2)}
-  100%{background:transparent;box-shadow:0 0 0 0 rgba(99,102,241,0)}
-}
-#bcs-smtp-pw-cancel-row{animation:bcs-smtp-pw-cancel-pulse 1.6s ease-out;border-radius:6px;padding:4px 8px;margin-left:-8px}
-
-/* =====================================================================
-   Checkboxes / Radio
-   ===================================================================== */
-.bcs-smtp-check-list{display:flex;flex-direction:column;gap:10px}
-.bcs-smtp-check-item{display:flex;align-items:flex-start;gap:10px;cursor:pointer;padding:10px 12px;border-radius:var(--bcs-smtp-radius-sm);border:1px solid transparent;transition:border-color var(--bcs-smtp-t),background var(--bcs-smtp-t)}
-.bcs-smtp-check-item:hover{background:var(--bcs-smtp-surface);border-color:var(--bcs-smtp-border)}
-.bcs-smtp-check-item input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:16px;height:16px;border-radius:4px;flex-shrink:0;margin-top:2px;border:1.5px solid var(--bcs-smtp-border-light);background:var(--bcs-smtp-surface-2);cursor:pointer;transition:all var(--bcs-smtp-t);position:relative}
-.bcs-smtp-check-item input[type="checkbox"]:checked{background:var(--bcs-smtp-indigo);border-color:var(--bcs-smtp-indigo)}
-.bcs-smtp-check-item input[type="checkbox"]:checked::after{content:'';position:absolute;left:4px;top:1px;width:5px;height:9px;border:2px solid #fff;border-top:none;border-left:none;transform:rotate(45deg)}
-.bcs-smtp-check-item input[type="radio"]{appearance:none;-webkit-appearance:none;width:20px;height:20px;border-radius:50%;flex-shrink:0;border:2px solid var(--bcs-smtp-border-light);background:var(--bcs-smtp-surface-2);cursor:pointer;transition:all var(--bcs-smtp-t);position:relative}
-.bcs-smtp-check-item input[type="radio"]:checked{border-color:var(--bcs-smtp-indigo);background:var(--bcs-smtp-indigo);box-shadow:inset 0 0 0 3px var(--bcs-smtp-surface-2)}
-.bcs-smtp-check-label-title{font-size:13px;color:var(--bcs-smtp-text);font-weight:500}
-.bcs-smtp-check-label-desc{font-size:11.5px;color:var(--bcs-smtp-text-3);margin-top:1px}
-
-/* =====================================================================
-   Alert
-   ===================================================================== */
-.bcs-smtp-alert{display:flex;gap:12px;padding:14px 16px;border-radius:var(--bcs-smtp-radius);margin-bottom:16px;font-size:13px;line-height:1.6}
-.bcs-smtp-alert .dashicons{flex-shrink:0;font-size:18px;width:18px;height:18px;margin-top:1px}
-.bcs-smtp-alert-content{flex:1}
-.bcs-smtp-alert-title{font-weight:600;margin-bottom:4px}
-.bcs-smtp-alert-warning{background:var(--bcs-smtp-amber-dim);border:1px solid rgba(245,158,11,.2)}
-.bcs-smtp-alert-warning .dashicons{color:var(--bcs-smtp-amber)}
-.bcs-smtp-alert-error{background:var(--bcs-smtp-rose-dim);border:1px solid rgba(244,63,94,.25)}
-.bcs-smtp-alert-error .dashicons{color:var(--bcs-smtp-rose)}
-.bcs-smtp-alert-success{background:var(--bcs-smtp-emerald-dim);border:1px solid rgba(16,185,129,.25)}
-.bcs-smtp-alert-success .dashicons{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-alert-info{background:var(--bcs-smtp-indigo-dim);border:1px solid rgba(99,102,241,.2)}
-.bcs-smtp-alert-info .dashicons{color:var(--bcs-smtp-indigo-h)}
-
-/* =====================================================================
-   Server / Config Grid
-   ===================================================================== */
-.bcs-smtp-server-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
-.bcs-smtp-server-row{display:flex;flex-direction:column;gap:3px;padding:10px 12px;background:var(--bcs-smtp-surface-2);border-radius:var(--bcs-smtp-radius-sm)}
-.bcs-smtp-server-key{font-size:11px;color:var(--bcs-smtp-text-3)}
-.bcs-smtp-server-val{font-size:12px;font-family:var(--bcs-smtp-mono);color:var(--bcs-smtp-text)}
-.bcs-smtp-server-val.good{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-server-val.bad{color:var(--bcs-smtp-rose)}
-
-/* =====================================================================
-   Badge
-   ===================================================================== */
-.bcs-smtp-badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;padding:3px 10px;border-radius:100px;font-weight:500;font-family:var(--bcs-smtp-mono);white-space:nowrap}
-.bcs-smtp-badge-success{background:var(--bcs-smtp-emerald-dim);color:var(--bcs-smtp-emerald);border:1px solid rgba(16,185,129,.3)}
-.bcs-smtp-badge-error{background:var(--bcs-smtp-rose-dim);color:var(--bcs-smtp-rose);border:1px solid rgba(244,63,94,.3)}
-.bcs-smtp-badge-warning{background:var(--bcs-smtp-amber-dim);color:var(--bcs-smtp-amber);border:1px solid rgba(245,158,11,.3)}
-
-/* =====================================================================
-   Tables — test log / incidents / change log
-   ===================================================================== */
-.bcs-smtp-table-wrap{overflow-x:auto;margin-top:4px}
-.bcs-smtp-table{width:100%;border-collapse:collapse;font-size:12px}
-.bcs-smtp-table th{text-align:left;padding:8px 10px;font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--bcs-smtp-text-3);border-bottom:1px solid var(--bcs-smtp-border);white-space:nowrap}
-.bcs-smtp-table td{padding:9px 10px;border-bottom:1px solid var(--bcs-smtp-border);color:var(--bcs-smtp-text);vertical-align:middle}
-.bcs-smtp-table tr:last-child td{border-bottom:none}
-.bcs-smtp-table tr:hover td{background:var(--bcs-smtp-surface-2)}
-.bcs-smtp-table tbody tr{transition:background var(--bcs-smtp-t)}
-
-/* Skeleton loader — Email Log table while an AJAX filter request is in flight */
-@keyframes bcs-smtp-shimmer{0%{background-position:-400px 0}100%{background-position:400px 0}}
-.bcs-smtp-skel{display:inline-block;height:10px;border-radius:4px;background:linear-gradient(90deg,var(--bcs-smtp-surface-2) 25%,rgba(255,255,255,.07) 50%,var(--bcs-smtp-surface-2) 75%);background-size:800px 100%;animation:bcs-smtp-shimmer 1.4s infinite linear}
-.bcs-smtp-skeleton-row td{padding:9px 10px}
-
-/* =====================================================================
-   Misc
-   ===================================================================== */
-.bcs-smtp-divider{height:1px;background:var(--bcs-smtp-border);margin:20px 0}
-.bcs-smtp-hidden{display:none!important}
-@keyframes bcs-smtp-spin{to{transform:rotate(360deg)}}
-.bcs-smtp-spinning{animation:bcs-smtp-spin .7s linear infinite;display:inline-block}
-details summary{list-style:none}
-details summary::-webkit-details-marker{display:none}
-
-/* Tab link in alerts */
-.bcs-smtp-tab-link{color:var(--bcs-smtp-indigo-h);text-decoration:underline;cursor:pointer}
-.bcs-smtp-tab-link:hover{color:var(--bcs-smtp-indigo)}
-
-/* =====================================================================
-   Mobile-only overrides (all panels)
-   ===================================================================== */
-@media(max-width:600px){
-  /* All buttons full-width on mobile, every tab */
-  .bcs-smtp-btn{width:100%}
-
-  /* Settings — saved-password row: input full width, Change button drops to its own line */
-  #bcs-smtp-pw-display{flex-wrap:wrap}
-  #bcs-smtp-pw-display input{flex:1 1 100%!important;width:100%!important}
-
-  /* Email Log filters — date range & status dropdowns full width */
-  #bcs-smtp-log-date-range,
-  #bcs-smtp-log-status{width:100%!important;min-width:0!important}
-
-  /* Email Log pagination — Prev/Next stay on one row, left & right */
-  #bcs-smtp-log-pagination{justify-content:space-between;flex-wrap:nowrap}
-  #bcs-smtp-log-prev,
-  #bcs-smtp-log-next{width:auto!important;flex-shrink:0}
-
-  /* Email Report — 4 summary stat boxes as a 2-column (50%) grid, without overflowing the card */
-  .bcs-smtp-report-stats{grid-template-columns:repeat(2,1fr)!important}
-  .bcs-smtp-report-stats .bcs-smtp-stat{min-width:0}
-
-  /* Schedule Report — frequency select full-width */
-  #bcs-smtp-report-frequency{max-width:none!important;width:100%!important}
-}
-
-/* "Failure types detected" list — ensure bullet markers render, on every device */
-.bcs-smtp-alert-content ul{list-style:disc;list-style-position:inside;margin:6px 0 0;padding:0}
-.bcs-smtp-alert-content li{margin-bottom:4px}
+.bcs-smtp-pw-wrap .bcs-smtp-input{padding-right:44px}
+.bcs-smtp-pw-eye{position:absolute;top:50%;right:4px;transform:translateY(-50%);display:grid;place-items:center;width:34px;height:32px;background:none;border:0;border-radius:5px;cursor:pointer;color:var(--bcs-ink-3)}
+.bcs-smtp-pw-eye:hover{color:var(--bcs-ink);background:var(--bcs-field-hover)}
+.bcs-smtp-pw-saved{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:40px;padding:0 12px;border-radius:var(--bcs-r-sm);background:var(--bcs-field);border:1px dashed var(--bcs-seam-strong)}
+.bcs-smtp-pw-dots{letter-spacing:.12em;color:var(--bcs-ink-2)}
+
+.bcs-smtp-segmented{display:inline-flex;flex-wrap:wrap;padding:3px;gap:2px;background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm)}
+.bcs-smtp-segmented label{position:relative;cursor:pointer;margin:0}
+.bcs-smtp-segmented input{position:absolute;opacity:0;width:1px;height:1px;margin:0}
+.bcs-smtp-segmented span{display:flex;align-items:center;min-height:32px;padding:0 12px;border-radius:5px;font:500 13px/1 var(--bcs-font);color:var(--bcs-ink-2);white-space:nowrap;transition:background var(--bcs-t),color var(--bcs-t)}
+.bcs-smtp-segmented label:hover span{color:var(--bcs-ink)}
+.bcs-smtp-segmented input:checked + span{background:var(--bcs-brand);color:#fff;font-weight:600}
+.bcs-smtp-segmented input:focus-visible + span{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+
+.bcs-smtp-toggle-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-top:4px}
+.bcs-smtp-toggle-row + #bcs-smtp-auth-fields{margin-top:4px}
+.bcs-smtp-auth-warning{margin-top:14px}
+.bcs-smtp-toggle-row-info{min-width:0}
+.bcs-smtp-toggle-row-label{display:block;font-size:14.5px;font-weight:600;color:var(--bcs-ink);cursor:pointer}
+.bcs-smtp-toggle-row--head .bcs-smtp-toggle-row-label{font-size:17px}
+.bcs-smtp-toggle-row-desc{font-size:13.5px!important;color:var(--bcs-ink-2);margin-top:3px!important;max-width:62ch}
+.bcs-smtp-toggle{position:relative;display:inline-block;width:42px;height:24px;flex-shrink:0;margin-top:2px}
+.bcs-smtp-toggle input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:1}
+.bcs-smtp-toggle-slider{position:absolute;inset:0;border-radius:99px;background:var(--bcs-seam-strong);transition:background var(--bcs-t)}
+.bcs-smtp-toggle-slider::before{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#c5cddd;box-shadow:0 1px 2px rgba(0,0,0,.35);transition:transform var(--bcs-t),background var(--bcs-t)}
+.bcs-smtp-toggle input:checked + .bcs-smtp-toggle-slider{background:var(--bcs-brand)}
+.bcs-smtp-toggle input:checked + .bcs-smtp-toggle-slider::before{transform:translateX(18px);background:#fff}
+.bcs-smtp-toggle input:focus-visible + .bcs-smtp-toggle-slider{outline:2px solid var(--bcs-brand-ink);outline-offset:2px}
+
+.bcs-smtp-disclosure{margin-top:24px;border:1px solid var(--bcs-seam);border-radius:var(--bcs-r-sm);background:var(--bcs-bg)}
+.bcs-smtp-disclosure-head{appearance:none;width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:none;border:0;cursor:pointer;text-align:left;color:var(--bcs-ink);font-family:var(--bcs-font)}
+.bcs-smtp-disclosure-head strong{display:block;font-size:14px;font-weight:600}
+.bcs-smtp-disclosure-head .bcs-smtp-mono{display:block;color:var(--bcs-ink-3);margin-top:2px;font-size:12px}
+.bcs-smtp-disclosure-head .dashicons{color:var(--bcs-ink-3);transition:transform var(--bcs-t)}
+.bcs-smtp-disclosure.is-open .bcs-smtp-disclosure-head .dashicons{transform:rotate(180deg)}
+.bcs-smtp-disclosure-body{display:none;padding:0 16px 18px;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-disclosure.is-open .bcs-smtp-disclosure-body{display:block}
+.bcs-smtp-disclosure-body .bcs-smtp-toggle-row{margin-top:18px}
+
+
+.bcs-smtp-reveal{display:none;padding-top:6px}
+.bcs-smtp-reveal.open{display:block}
+.bcs-smtp-sentence{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:14px;color:var(--bcs-ink)}
+.bcs-smtp-sentence label{font-weight:500}
+.bcs-smtp-sentence .bcs-smtp-hint{flex-basis:100%;margin-top:0}
+
+/* Test / aside */
+.bcs-smtp-test h2{font-size:17px}
+.bcs-smtp-test > p,.bcs-smtp-aside > p{color:var(--bcs-ink-2);font-size:13.5px}
+.bcs-smtp-aside > .bcs-smtp-hint{margin-top:18px}
+
+/* =====================================================================
+   Email log
+   ===================================================================== */
+.bcs-smtp-filters{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-search{position:relative;flex:1 1 260px;min-width:200px}
+.bcs-smtp-search .dashicons{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--bcs-ink-3);font-size:18px;width:18px;height:18px;pointer-events:none}
+.bcs-smtp-wrap .bcs-smtp-search .bcs-smtp-input{padding-left:36px}
+.bcs-smtp-filters .bcs-smtp-btn{margin-left:auto}
+
+.bcs-smtp-table-wrap{overflow-x:auto}
+.bcs-smtp-table{width:100%;border-collapse:collapse;font-size:13.5px;table-layout:fixed}
+.bcs-smtp-table th{text-align:left;padding:10px 12px;font:600 11px/1.2 var(--bcs-font);letter-spacing:.09em;text-transform:uppercase;color:var(--bcs-ink-3);background:var(--bcs-bg);border-bottom:1px solid var(--bcs-seam);white-space:nowrap}
+.bcs-smtp-table td{padding:9px 12px;border-bottom:1px solid var(--bcs-seam);vertical-align:middle;color:var(--bcs-ink);overflow:hidden}
+.bcs-smtp-table th:first-child,.bcs-smtp-table td:first-child{padding-left:20px}
+.bcs-smtp-table th:last-child,.bcs-smtp-table td:last-child{padding-right:20px}
+.bcs-smtp-table tbody tr{transition:background var(--bcs-t)}
+.bcs-smtp-table tbody tr:hover td{background:rgba(255,255,255,.025)}
+.bcs-smtp-table tbody tr:last-child td{border-bottom:0}
+.bcs-smtp-col-date{width:112px;color:var(--bcs-ink-2);white-space:nowrap}
+td.bcs-smtp-col-date{font-size:12px}
+.bcs-smtp-col-to{width:28%}
+.bcs-smtp-col-status{width:128px}
+.bcs-smtp-col-more{width:84px;text-align:right}
+.bcs-smtp-table .bcs-smtp-view-btn{display:inline-flex;align-items:center;gap:2px;height:30px;padding:0 6px 0 10px;border-radius:7px;font-size:13px;font-weight:600;color:var(--bcs-ink-2);text-decoration:none;transition:color var(--bcs-t),background var(--bcs-t)}
+.bcs-smtp-view-btn .dashicons{font-size:15px;width:15px;height:15px;transition:transform var(--bcs-t)}
+.bcs-smtp-table tbody tr:hover .bcs-smtp-view-btn,.bcs-smtp-table .bcs-smtp-view-btn:focus-visible{color:var(--bcs-brand-ink);background:var(--bcs-brand-wash)}
+.bcs-smtp-view-btn:hover .dashicons{transform:translateX(2px)}
+.bcs-smtp-view-btn:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+.bcs-smtp-table tbody tr.bcs-smtp-day-row th{padding:16px 20px 8px;font:600 12px/1.2 var(--bcs-font);letter-spacing:.02em;text-transform:none;color:var(--bcs-ink-2);background:var(--bcs-panel);border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-table tbody tr.bcs-smtp-day-row:hover th{background:var(--bcs-panel)}
+.bcs-smtp-log-error{margin-top:12px;border-radius:10px;border:1px solid rgba(251,113,133,.25);background:rgba(251,113,133,.06);overflow:hidden}
+.bcs-smtp-log-error-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px 8px 16px;border-bottom:1px solid rgba(251,113,133,.16);font-size:12px;font-weight:600;color:var(--bcs-bad)}
+.bcs-smtp-copy-btn{display:inline-flex;align-items:center;gap:5px;height:28px;padding:0 10px;border:1px solid var(--bcs-seam-strong);border-radius:7px;background:var(--bcs-panel);color:var(--bcs-ink);font:inherit;font-size:12.5px;font-weight:500;cursor:pointer}
+.bcs-smtp-copy-btn:hover{border-color:var(--bcs-ink-3)}
+.bcs-smtp-copy-btn .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-log-error pre{margin:0;padding:12px 16px;font-size:12.5px;line-height:1.6;color:var(--bcs-ink);white-space:pre-wrap;overflow-wrap:anywhere;background:none}
+.bcs-smtp-seg-count{margin-left:6px;font-weight:500;font-size:12px;opacity:.7;font-variant-numeric:tabular-nums}
+.bcs-smtp-seg-count:empty{display:none}
+.bcs-smtp-table tr[hidden]{display:none!important}
+td.bcs-smtp-col-to,td.bcs-smtp-col-from{white-space:nowrap;text-overflow:ellipsis;color:var(--bcs-ink-2);font-size:12px}
+.bcs-smtp-cell-main{display:block;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-cell-note{display:block;margin-top:4px;font-size:11.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-table-empty{text-align:center;padding:44px 20px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-table-empty strong{display:block;color:var(--bcs-ink);font-weight:600;margin-bottom:4px}
+.bcs-smtp-skel{display:block;height:10px;border-radius:4px;background:var(--bcs-field-hover);animation:bcs-skel-pulse 1.2s ease-in-out infinite}
+@keyframes bcs-skel-pulse{0%,100%{opacity:.45}50%{opacity:1}}
+
+.bcs-smtp-pager{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 20px;border-top:1px solid var(--bcs-seam);background:var(--bcs-bg)}
+.bcs-smtp-pager-size{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--bcs-ink-2)}
+.bcs-smtp-pager-nav{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--bcs-ink-2)}
+
+/* =====================================================================
+   Reports
+   ===================================================================== */
+.bcs-smtp-chart{position:relative;height:300px;margin-top:20px}
+.bcs-smtp-chart-empty{position:absolute;inset:0;display:grid;place-items:center;color:var(--bcs-ink-3)}
+
+/* Reports */
+.bcs-smtp-report-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
+.bcs-smtp-report .bcs-smtp-panel-head{align-items:flex-start;margin-bottom:16px}
+.bcs-smtp-report .bcs-smtp-panel-head h2{font-size:18px}
+.bcs-smtp-report .bcs-smtp-panel-sub{margin-top:2px!important}
+.bcs-smtp-figures--5{grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin:0 -24px 16px;border-top:1px solid var(--bcs-seam);border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-figures--5 > div{padding:12px 24px;border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-figures--5 dd{font-size:24px;margin-top:4px}
+.bcs-smtp-figures--5 > div:first-child{border-left:0}
+.bcs-smtp-figure-rate dd{color:var(--bcs-ink)}
+.bcs-smtp-ratebar{display:block;height:4px;margin-top:8px;border-radius:2px;background:color-mix(in srgb,var(--bcs-bad) 35%,var(--bcs-seam-strong));overflow:hidden}
+.bcs-smtp-ratebar span{display:block;height:100%;background:var(--bcs-ok);border-radius:2px;transition:width .5s var(--bcs-ease)}
+.bcs-smtp-linechart--lg{height:220px}
+.bcs-smtp-report .bcs-smtp-chart-empty{margin-top:-120px!important;text-align:center;color:var(--bcs-ink-3);position:relative}
+.bcs-smtp-report-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:20px;margin-top:20px;align-items:stretch}
+.bcs-smtp-report-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-highlights{margin:0;display:flex;flex-direction:column}
+.bcs-smtp-highlights > div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-highlights > div:first-child{border-top:0;padding-top:0}
+.bcs-smtp-highlights dt{display:flex;align-items:center;gap:12px;color:var(--bcs-ink-2);font-size:14px}
+.bcs-smtp-highlights dd{margin:0;font-weight:600;font-size:16px;text-align:right;white-space:nowrap}
+.bcs-smtp-highlights dd small{font-size:12.5px;font-weight:400;color:var(--bcs-ink-3);margin-left:4px}
+.bcs-smtp-highlights dd.is-bad{color:var(--bcs-bad)}
+.bcs-smtp-highlights dd.is-good{color:var(--bcs-ok)}
+.bcs-smtp-highlights dt > span{display:flex;flex-direction:column}
+.bcs-smtp-hl-sub{font-size:12px;color:var(--bcs-ink-3);margin-top:1px}
+.bcs-smtp-hl-icon{display:grid!important;place-items:center;width:32px!important;height:32px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:17px!important}
+.bcs-smtp-hl-icon--bad{background:rgba(251,113,133,.13);color:var(--bcs-bad)}
+.bcs-smtp-hl-icon--ok{background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-schedule h2{font-size:16px;margin:0}
+.bcs-smtp-schedule h2 label{cursor:pointer}
+.bcs-smtp-schedule .bcs-smtp-field{margin-top:18px}
+.bcs-smtp-field > .bcs-smtp-segmented{align-self:flex-start}
+.bcs-smtp-report-next{display:flex;align-items:center;gap:8px;margin-top:14px!important;padding:10px 12px;border-radius:var(--bcs-r-sm);background:var(--bcs-brand-wash);color:var(--bcs-ink);font-size:13.5px!important;font-weight:500}
+.bcs-smtp-report-next .dashicons{color:var(--bcs-brand-ink);font-size:17px;width:17px;height:17px}
+
+/* Recipient chips */
+.bcs-smtp-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-height:44px;padding:6px 8px;cursor:text;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm);transition:border-color var(--bcs-t),box-shadow var(--bcs-t)}
+.bcs-smtp-chips:hover{border-color:#40507a}
+.bcs-smtp-chips:focus-within{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 3px rgba(141,180,255,.18)}
+.bcs-smtp-chips.is-invalid{border-color:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-chip-list{display:contents;list-style:none;margin:0;padding:0}
+.bcs-smtp-chip{display:inline-flex;align-items:center;gap:2px;max-width:100%;height:28px;margin:0;padding:0 2px 0 10px;border-radius:99px;
+  background:var(--bcs-brand-wash);border:1px solid rgba(141,180,255,.28);color:var(--bcs-ink);font-size:13px;line-height:1}
+.bcs-smtp-chip-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-chip.is-invalid{background:rgba(251,113,133,.12);border-color:rgba(251,113,133,.45);color:var(--bcs-bad)}
+.bcs-smtp-chip.is-armed{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 2px rgba(141,180,255,.35)}
+.bcs-smtp-chip-x{appearance:none;display:grid;place-items:center;width:22px;height:22px;padding:0;border:0;border-radius:50%;background:none;color:var(--bcs-ink-3);cursor:pointer;flex-shrink:0}
+.bcs-smtp-chip-x:hover{background:rgba(255,255,255,.1);color:var(--bcs-ink)}
+.bcs-smtp-chip-x .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-wrap .bcs-smtp-chips-input{flex:1 1 160px;min-width:120px;height:30px;margin:0;padding:0 4px;border:0;background:none;box-shadow:none;outline:none;color:var(--bcs-ink);font:400 14px/1.4 var(--bcs-font)}
+.bcs-smtp-wrap .bcs-smtp-chips-input:focus{box-shadow:none;outline:none}
+.bcs-smtp-wrap .bcs-smtp-chips-input::placeholder{color:#6f7c97}
+
+
+/* Alerts — channel picker, webhook, health checks */
+.bcs-smtp-alerts-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:20px;margin-top:20px;align-items:stretch}
+.bcs-smtp-alerts-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-alerts-grid{margin-top:0}
+.bcs-smtp-health-side{padding:22px;position:sticky;top:52px}
+.bcs-smtp-health-head{display:flex;gap:14px;align-items:flex-start}
+.bcs-smtp-health-icon{display:grid!important;place-items:center;width:42px!important;height:42px!important;flex-shrink:0;border-radius:11px;background:rgba(52,211,153,.13);color:var(--bcs-ok);font-size:20px!important}
+.bcs-smtp-health-head h2{margin:0 0 4px;font-size:16px;line-height:1.3}
+.bcs-smtp-health-head p{font-size:13px!important;line-height:1.5;color:var(--bcs-ink-2)}
+.bcs-smtp-health-times{display:grid;grid-template-columns:1fr 1fr;margin:18px 0 0;border:1px solid var(--bcs-seam);border-radius:10px;background:var(--bcs-field)}
+.bcs-smtp-health-times > div{padding:12px 14px}
+.bcs-smtp-health-times > div + div{border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-health-times dt{font-size:12px;color:var(--bcs-ink-3);margin-bottom:4px}
+.bcs-smtp-health-times dd{margin:0;font-size:14px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-health-pending{margin-top:16px!important;padding:12px 14px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-health-rules{list-style:none;margin:18px 0 0;padding:18px 0 0;border-top:1px solid var(--bcs-seam);display:flex;flex-direction:column;gap:12px}
+.bcs-smtp-health-rules li{display:flex;align-items:center;gap:10px;margin:0;font-size:13.5px;color:var(--bcs-ink)}
+.bcs-smtp-health-rules .dashicons{display:grid;place-items:center;width:28px;height:28px;flex-shrink:0;border-radius:8px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:15px}
+.bcs-smtp-webhook{margin-top:20px}
+.bcs-smtp-webhook-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
+.bcs-smtp-webhook-guide{display:inline-flex;align-items:center;gap:3px;font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap}
+.bcs-smtp-webhook-guide .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-webhook-guide:hover{text-decoration:underline}
+.bcs-smtp-webhook input[aria-invalid="true"]{border-color:var(--bcs-bad)}
+.bcs-smtp-webhook-err{margin-top:8px!important;font-size:13px!important;color:var(--bcs-bad)}
+.bcs-smtp-alerts-off{display:flex;gap:12px;align-items:flex-start;margin:18px 0 24px;padding:14px 16px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-alerts-off[hidden]{display:none}
+.bcs-smtp-alerts-off .dashicons{color:var(--bcs-warn);font-size:18px;width:18px;height:18px;margin-top:1px}
+.bcs-smtp-alerts-off p{font-size:13.5px;color:var(--bcs-ink-2)}
+.bcs-smtp-unsaved{margin-left:auto;display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--bcs-warn)}
+.bcs-smtp-unsaved::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
+.bcs-smtp-unsaved[hidden]{display:none}
+.bcs-smtp-field-aside{font-weight:400;color:var(--bcs-ink-3);margin-left:6px}
+.bcs-smtp-webhook-how{margin-top:10px!important;font-size:13px!important;color:var(--bcs-ink-3);line-height:1.5}
+
+.bcs-smtp-alerts-card{display:flex;flex-direction:column}
+.bcs-smtp-card-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--bcs-seam)}
+
+
+
+/* Full email view */
+.bcs-smtp-back{display:inline-flex;align-items:center;gap:4px;margin:6px 0 18px;font-size:13.5px;font-weight:600;color:var(--bcs-ink-2);text-decoration:none}
+.bcs-smtp-back:hover,.bcs-smtp-back:focus{color:var(--bcs-ink)}
+.bcs-smtp-back .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-mailview [hidden]{display:none!important}
+.bcs-smtp-mailview-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
+.bcs-smtp-mailview-title{min-width:0;flex:1 1 420px}
+.bcs-smtp-mailview-when{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px!important;font-size:13px;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview h1{margin:0;padding:0;font-size:24px;line-height:1.3;font-weight:600;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-mailview-nav{display:flex;gap:8px}
+.bcs-smtp-mailview-nav .dashicons{font-size:15px;width:15px;height:15px}
+.bcs-smtp-mailview-nav .is-disabled{opacity:.4;pointer-events:none}
+.bcs-smtp-mailview-error{margin:0 0 20px}
+.bcs-smtp-mailview-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
+.bcs-smtp-mailview-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-mailview-message .bcs-smtp-panel-head h2,.bcs-smtp-mailview-meta h2{margin:0;font-size:16px}
+.bcs-smtp-mailframe-wrap{border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--bcs-seam)}
+.bcs-smtp-mailframe{display:block;width:100%;height:480px;border:0;background:#fff;overflow:hidden}
+.bcs-smtp-mailview-source{border-radius:10px;border:1px solid var(--bcs-seam);background:var(--bcs-bg);overflow:hidden}
+.bcs-smtp-mailview-source-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px 8px 16px;border-bottom:1px solid var(--bcs-seam);font-size:12px;font-weight:600;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-source pre,.bcs-smtp-mailview-text{margin:0;padding:16px;font-size:12.5px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--bcs-ink);max-height:70vh;overflow:auto;background:none}
+.bcs-smtp-mailview-text{border-radius:10px;border:1px solid var(--bcs-seam);background:var(--bcs-bg);font-family:var(--bcs-mono)}
+.bcs-smtp-mailview-empty{display:flex;flex-direction:column;align-items:center;gap:8px;padding:48px 24px;text-align:center;border-radius:10px;border:1px dashed var(--bcs-seam-strong)}
+.bcs-smtp-mailview-empty .dashicons{font-size:28px;width:28px;height:28px;color:var(--bcs-ink-3)}
+.bcs-smtp-mailview-empty strong{font-size:15px;color:var(--bcs-ink)}
+.bcs-smtp-mailview-empty p{max-width:46ch;font-size:13.5px;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-meta{padding:20px 22px}
+.bcs-smtp-mailview-meta h2{margin-bottom:14px}
+.bcs-smtp-mailview-facts{display:flex;flex-direction:column;margin:0}
+.bcs-smtp-mailview-facts > div{padding:10px 0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-facts > div:first-child{padding-top:0;border-top:0}
+.bcs-smtp-mailview-facts dt{margin-bottom:3px;font-size:11.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-mailview-facts dd{margin:0;font-size:13px;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-mailview-meta h3{margin:18px 0 8px;font-size:13px;color:var(--bcs-ink)}
+.bcs-smtp-mailview-atts{display:flex;flex-direction:column;gap:6px;margin:0 0 8px;padding:0;list-style:none}
+.bcs-smtp-mailview-atts li{display:flex;align-items:center;gap:8px;margin:0;padding:8px 10px;border-radius:8px;background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13px;overflow-wrap:anywhere}
+.bcs-smtp-mailview-atts .dashicons{color:var(--bcs-ink-3);font-size:16px;width:16px;height:16px;flex-shrink:0}
+.bcs-smtp-mailview-headers{margin-top:18px;padding-top:14px;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-headers summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-mailview-headers pre{margin:10px 0 0;padding:12px;border-radius:8px;background:var(--bcs-bg);border:1px solid var(--bcs-seam);font-size:12px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-missing{padding:48px 24px;text-align:center}
+.bcs-smtp-mailview-missing p{margin-top:8px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-message{padding:0;overflow:hidden}
+.bcs-smtp-envelope{display:flex;gap:14px;align-items:flex-start;padding:20px 24px;border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-envelope-avatar{display:grid;place-items:center;width:42px;height:42px;flex-shrink:0;border-radius:50%;background:var(--bcs-brand);color:#fff;font-size:17px;font-weight:600}
+.bcs-smtp-envelope-lines{min-width:0;flex:1}
+.bcs-smtp-envelope-from{font-size:14.5px!important;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-envelope-from strong{font-weight:600;margin-right:6px}
+.bcs-smtp-envelope-from span{color:var(--bcs-ink-3);font-size:13px}
+.bcs-smtp-envelope-to{margin-top:3px!important;font-size:13px!important;color:var(--bcs-ink-2);overflow-wrap:anywhere}
+.bcs-smtp-envelope-to span{color:var(--bcs-ink-3);margin-right:4px}
+.bcs-smtp-mailview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 24px;border-bottom:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-device-icon{display:block;width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-mailview-body{padding:20px 24px 24px}
+.bcs-smtp-mailframe-stage{border-radius:10px;background:var(--bcs-bg);border:1px solid var(--bcs-seam);padding:0;transition:padding var(--bcs-t)}
+.bcs-smtp-mailframe-stage.is-mobile{padding:20px 0}
+.bcs-smtp-mailframe-stage .bcs-smtp-mailframe-wrap{margin:0 auto;border:0;border-radius:10px;transition:max-width var(--bcs-t)}
+.bcs-smtp-mailframe-stage.is-mobile .bcs-smtp-mailframe-wrap{max-width:390px;border-radius:18px;box-shadow:0 0 0 6px var(--bcs-panel),0 0 0 7px var(--bcs-seam-strong)}
+.bcs-smtp-mailview-plain pre{font-family:var(--bcs-font);font-size:13.5px;line-height:1.65}
+.bcs-smtp-mailview-meta{position:sticky;top:52px}
+.bcs-smtp-mailview-verdict{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:16px;padding:12px 14px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-verdict p{font-size:13px!important;color:var(--bcs-ink-2);line-height:1.5}
+.bcs-smtp-mailview-note{margin-top:4px!important;font-size:12px!important;color:var(--bcs-ink-3)!important}
+@media (max-width:1100px){
+  .bcs-smtp-mailview-meta{position:static}
+}
+@media (max-width:600px){
+  .bcs-smtp-wrap .bcs-smtp-mailview-message{padding:0}
+  .bcs-smtp-envelope,.bcs-smtp-mailview-toolbar,.bcs-smtp-mailview-body{padding-left:16px;padding-right:16px}
+}
+@media (max-width:1100px){
+  .bcs-smtp-mailview-grid{grid-template-columns:minmax(0,1fr)}
+}
+@media (max-width:600px){
+  .bcs-smtp-mailview h1{font-size:20px}
+  .bcs-smtp-mailview-nav{width:100%}
+  .bcs-smtp-mailview-nav > *{flex:1;justify-content:center}
+}
+
+/* =====================================================================
+   Messages
+   ===================================================================== */
+.bcs-smtp-msg:empty{display:none}
+.bcs-smtp-msg{margin-top:14px}
+.bcs-smtp-alert{--tone:var(--bcs-brand-ink);display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:var(--bcs-r-sm);border:1px solid color-mix(in srgb,var(--tone) 35%,transparent);background:color-mix(in srgb,var(--tone) 9%,var(--bcs-panel));font-size:13.5px;line-height:1.5;color:var(--bcs-ink)}
+.bcs-smtp-alert .dashicons{color:var(--tone);flex-shrink:0;font-size:18px;width:18px;height:18px;margin-top:1px}
+.bcs-smtp-alert-content{min-width:0;overflow-wrap:anywhere}
+.bcs-smtp-alert-content strong{font-weight:600}
+.bcs-smtp-alert-success{--tone:var(--bcs-sent)}
+.bcs-smtp-alert-error{--tone:var(--bcs-back)}
+.bcs-smtp-alert-warning{--tone:var(--bcs-held)}
+.bcs-smtp-alert .is-good{color:var(--bcs-sent)}
+.bcs-smtp-alert .is-bad{color:var(--bcs-back)}
+
+.bcs-smtp-toast{position:fixed;right:24px;bottom:24px;z-index:100000;max-width:min(420px,calc(100vw - 32px));pointer-events:none}
+.bcs-smtp-toast .bcs-smtp-alert{pointer-events:auto;box-shadow:0 12px 32px rgba(0,0,0,.45),0 2px 6px rgba(0,0,0,.3);animation:bcs-panel-in .22s var(--bcs-ease)}
+
+/* =====================================================================
+   Responsive
+   ===================================================================== */
+@media (max-width:1200px){
+  .bcs-smtp-col-from{display:none}
+  .bcs-smtp-hero-facts{grid-template-columns:repeat(3,minmax(0,1fr))}
+  .bcs-smtp-hero-facts > div:nth-child(4){border-left:0}
+  .bcs-smtp-hero-facts > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+}
+@media (max-width:1100px){
+  .bcs-smtp-overview-grid,.bcs-smtp-split,.bcs-smtp-alerts-grid{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-split > .bcs-smtp-test,.bcs-smtp-health-side{position:static}
+}
+@media (max-width:900px){
+  .bcs-smtp-hero-main{grid-template-columns:auto minmax(0,1fr)}
+  .bcs-smtp-hero-actions{grid-column:1/-1;justify-content:flex-start}
+  .bcs-smtp-figures{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}
+  .bcs-smtp-figures--5{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:0}
+  .bcs-smtp-figures--5 > div:nth-child(4){border-left:0}
+  .bcs-smtp-figures--5 > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-report-grid{grid-template-columns:minmax(0,1fr)}
+}
+@media (max-width:782px){
+  .bcs-smtp-wrap{padding:16px 12px 40px 0;font-size:15px}
+  .bcs-smtp-header h1{font-size:19px}
+  .bcs-smtp-header-actions{width:100%}
+  .bcs-smtp-header-actions .bcs-smtp-btn{flex:1}
+  .bcs-smtp-tabs{width:100%;gap:2px;padding:4px}
+  .bcs-smtp-tab{height:36px;padding:0 11px;font-size:13.5px}
+  .bcs-smtp-tab .dashicons{font-size:16px;width:16px;height:16px}
+  .bcs-smtp-panel{padding:18px}
+  .bcs-smtp-panel--flush{padding:0}
+  .bcs-smtp-hero{padding:20px 18px 0}
+  .bcs-smtp-hero-main{gap:14px 16px;padding-bottom:20px}
+  .bcs-smtp-hero-copy h2{font-size:21px}
+  .bcs-smtp-beacon{width:42px;height:42px}
+  .bcs-smtp-beacon span{width:13px;height:13px}
+  .bcs-smtp-hero-actions .bcs-smtp-btn{flex:1 1 auto}
+  .bcs-smtp-hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));margin:0 -18px}
+  .bcs-smtp-hero-facts > div{padding:12px 18px;border-left:0;border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:nth-child(-n+2){border-top:0}
+  .bcs-smtp-hero-facts > div:nth-child(even){border-left:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:last-child:nth-child(odd){grid-column:1/-1}
+  .bcs-smtp-hero-facts dd{white-space:normal;overflow-wrap:anywhere}
+  .bcs-smtp-linechart{height:200px}
+  .bcs-smtp-linechart--lg{height:190px}
+  .bcs-smtp-figures--5{grid-template-columns:repeat(2,minmax(0,1fr));margin:0 -18px 20px}
+  .bcs-smtp-figures--5 > div{padding:14px 18px}
+  .bcs-smtp-figures--5 > div:nth-child(odd){border-left:0}
+  .bcs-smtp-figures--5 > div:nth-child(4){border-left:1px solid var(--bcs-seam)}
+  .bcs-smtp-figures--5 > div:nth-child(n+3){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-figures--5 > div:last-child{grid-column:1/-1;border-left:0}
+  .bcs-smtp-report-tools{width:100%}
+  .bcs-smtp-report-tools .bcs-smtp-segmented{width:100%}
+  .bcs-smtp-activity-foot{margin:16px -18px -18px!important;padding:14px 18px}
+  .bcs-smtp-field-row,.bcs-smtp-field-row:has(.bcs-smtp-field--port),.bcs-smtp-field-row:has(> .bcs-smtp-field--grow:first-child):not(:has(.bcs-smtp-field--port)){grid-template-columns:minmax(0,1fr);gap:0}
+  .bcs-smtp-provider-grid,.bcs-smtp-provider-grid--compact{grid-template-columns:repeat(2,minmax(0,1fr))}
+  .bcs-smtp-wrap .bcs-smtp-input{min-height:44px;height:44px;font-size:16px}
+  .bcs-smtp-btn{min-height:44px}
+  .bcs-smtp-btn-sm{min-height:36px}
+  .bcs-smtp-facts{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-facts > div:nth-child(odd){padding-right:0}
+  .bcs-smtp-filters{padding:14px}
+  .bcs-smtp-filters .bcs-smtp-btn{margin-left:0}
+  .bcs-smtp-filters .bcs-smtp-select{flex:1 1 140px}
+  .bcs-smtp-segmented{width:100%}
+  .bcs-smtp-segmented label{flex:1}
+  .bcs-smtp-segmented span{justify-content:center;padding:0 8px}
+
+  /* Email log becomes stacked rows */
+  .bcs-smtp-table{table-layout:auto}
+  .bcs-smtp-table thead{display:none}
+  .bcs-smtp-table tbody tr{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:4px 8px;padding:12px 14px;border-bottom:1px solid var(--bcs-seam)}
+  .bcs-smtp-table tbody tr:last-child{border-bottom:0}
+  .bcs-smtp-table td{display:block;padding:0!important;border:0;width:auto!important;text-align:left}
+  .bcs-smtp-table td.bcs-smtp-col-date{grid-column:1;grid-row:1}
+  .bcs-smtp-table td.bcs-smtp-col-status{grid-column:2;grid-row:1;justify-self:end}
+  .bcs-smtp-table td.bcs-smtp-col-more{grid-column:3;grid-row:1;align-self:center}
+  .bcs-smtp-table .bcs-smtp-view-btn{height:26px;padding:0 2px 0 6px}
+  .bcs-smtp-table tbody tr.bcs-smtp-day-row{display:block;padding:0}
+  .bcs-smtp-table tbody tr.bcs-smtp-day-row th{display:block;padding:14px 14px 8px}
+  .bcs-smtp-table td.bcs-smtp-col-subject{grid-column:1/-1}
+  .bcs-smtp-table td.bcs-smtp-col-to{grid-column:1/-1}
+  .bcs-smtp-table td.bcs-smtp-table-empty{grid-column:1/-1;text-align:center}
+  .bcs-smtp-pager{padding:12px 14px}
+  .bcs-smtp-pager-nav{width:100%;justify-content:space-between}
+  .bcs-smtp-toast{left:16px;right:16px;bottom:16px}
+}
+@media (max-width:480px){
+  .bcs-smtp-figures dd{font-size:24px}
+}
+
+/* Tablet: five-item rows fill as 3 + 2 (two halves) instead of leaving an empty cell. */
+@media (min-width:783px) and (max-width:1200px){
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child){grid-template-columns:repeat(6,minmax(0,1fr))}
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child) > div:nth-child(-n+3){grid-column:span 2}
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child) > div:nth-child(n+4){grid-column:span 3}
+}
+@media (min-width:783px) and (max-width:900px){
+  .bcs-smtp-figures--5{grid-template-columns:repeat(6,minmax(0,1fr))}
+  .bcs-smtp-figures--5 > div:nth-child(-n+3){grid-column:span 2}
+  .bcs-smtp-figures--5 > div:nth-child(n+4){grid-column:span 3}
+}
+/* Tablet: the four activity numbers fit on one row; the two side cards sit side by side. */
+@media (min-width:601px) and (max-width:900px){
+  .bcs-smtp-figures:not(.bcs-smtp-figures--5){grid-template-columns:repeat(4,minmax(0,1fr))}
+}
+@media (min-width:601px) and (max-width:1100px){
+  .bcs-smtp-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch}
+  .bcs-smtp-side > :only-child{grid-column:1/-1}
+}
+/* Tablet email log: the recipient moves under the subject so subjects get the room. */
+.bcs-smtp-cell-to{display:none}
+@media (min-width:783px) and (max-width:1100px){
+  /* Collapsed, not display:none: the day rows span five columns, so all five must still exist. */
+  .bcs-smtp-table .bcs-smtp-col-to{width:0!important;padding:0!important;font-size:0;border-left:0;border-right:0;overflow:hidden}
+  .bcs-smtp-cell-to{display:block;margin-top:3px;font-size:12px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+}
+/* Phone: one fact per line, label left and value right, so values don't break mid-word;
+   and no desktop/mobile preview switch on a screen that is already phone-sized. */
+@media (max-width:600px){
+  .bcs-smtp-hero-facts{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-hero-facts > div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;grid-column:auto!important;border-left:0!important;border-top:1px solid var(--bcs-seam)!important}
+  .bcs-smtp-hero-facts > div:first-child{border-top:0!important}
+  .bcs-smtp-hero-facts dt{margin:0;flex-shrink:0}
+  .bcs-smtp-hero-facts dd{text-align:right;min-width:0}
+  .bcs-smtp-device{display:none!important}
+}
+
+@media (prefers-reduced-motion:reduce){
+  .bcs-smtp-tab-pill{transition:none}
+  .bcs-smtp-wrap *,.bcs-smtp-wrap *::after,.bcs-smtp-toast *{animation:none!important;transition:none!important}
+}
+.bcs-smtp-log-retention{margin-bottom:16px}
+.bcs-smtp-log-retention a{margin-left:6px;font-weight:600}
+
+/* Failure alerts card — header and channel list */
+.bcs-smtp-alerts-card{padding:0;overflow:hidden}
+.bcs-smtp-alerts-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:22px 24px}
+.bcs-smtp-alerts-badge{display:grid!important;place-items:center;width:42px!important;height:42px!important;border-radius:11px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:20px!important}
+.bcs-smtp-alerts-intro h2{margin:0 0 3px;font-size:16px;line-height:1.3}
+.bcs-smtp-alerts-intro h2 label{cursor:pointer}
+.bcs-smtp-alerts-intro p{font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-alerts-card .bcs-smtp-reveal{padding:0 24px}
+.bcs-smtp-ch-list-head{display:flex;align-items:center;justify-content:space-between;padding:14px 0 10px;border-top:1px solid var(--bcs-seam);font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--bcs-ink-3)}
+.bcs-smtp-ch-count{font-weight:500;letter-spacing:0;text-transform:none;font-size:12.5px}
+.bcs-smtp-ch-list{list-style:none;margin:0 0 20px;padding:0;border:1px solid var(--bcs-seam);border-radius:12px;overflow:hidden;background:var(--bcs-bg)}
+.bcs-smtp-ch{margin:0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-ch:first-child{border-top:0}
+.bcs-smtp-ch-row{display:flex;align-items:center;gap:12px;padding-right:16px;transition:background var(--bcs-t)}
+.bcs-smtp-ch-row:hover{background:rgba(255,255,255,.02)}
+.bcs-smtp-ch.is-open .bcs-smtp-ch-row{background:var(--bcs-field)}
+.bcs-smtp-ch-main{flex:1;min-width:0;display:flex;align-items:center;gap:12px;padding:12px 4px 12px 16px;border:0;background:none;color:inherit;font:inherit;text-align:left;cursor:pointer}
+.bcs-smtp-ch-main:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:-2px;border-radius:10px}
+.bcs-smtp-ch-icon{display:grid!important;place-items:center;width:34px!important;height:34px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-panel);border:1px solid var(--bcs-seam-strong);color:var(--bcs-ink-3);font-size:17px!important;transition:all var(--bcs-t)}
+.bcs-smtp-ch:not([data-state="off"]) .bcs-smtp-ch-icon{background:var(--bcs-brand);border-color:var(--bcs-brand);color:#fff}
+.bcs-smtp-ch-text{min-width:0;flex:1;display:flex;flex-direction:column;gap:1px}
+.bcs-smtp-ch-name{font-size:14px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-ch-sub{font-size:12.5px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-ch-pill{flex-shrink:0;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:600;line-height:1.4;color:var(--bcs-ink-3);background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-ch[data-state="ready"] .bcs-smtp-ch-pill{color:var(--bcs-ok);background:rgba(52,211,153,.1);border-color:rgba(52,211,153,.28)}
+.bcs-smtp-ch[data-state="missing"] .bcs-smtp-ch-pill{color:var(--bcs-warn);background:rgba(251,191,36,.1);border-color:rgba(251,191,36,.28)}
+.bcs-smtp-ch[data-state="bad"] .bcs-smtp-ch-pill{color:var(--bcs-bad);background:rgba(251,113,133,.1);border-color:rgba(251,113,133,.3)}
+.bcs-smtp-ch-chevron{flex-shrink:0;color:var(--bcs-ink-3);font-size:16px!important;width:16px!important;height:16px!important;transition:transform var(--bcs-t),opacity var(--bcs-t)}
+.bcs-smtp-ch[data-state="off"] .bcs-smtp-ch-chevron{opacity:0}
+.bcs-smtp-ch.is-open .bcs-smtp-ch-chevron{transform:rotate(180deg)}
+.bcs-smtp-ch .bcs-smtp-webhook{margin:0;padding:4px 16px 16px 62px;background:var(--bcs-field)}
+.bcs-smtp-ch .bcs-smtp-webhook .bcs-smtp-field-label{font-size:12.5px}
+.bcs-smtp-alerts-card .bcs-smtp-alerts-off{margin:0 24px 20px}
+.bcs-smtp-alerts-card .bcs-smtp-card-foot{margin:auto 0 0;padding:16px 24px;border-top:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-alerts-card .bcs-smtp-msg{margin:0 24px 16px}
+@media (max-width:600px){
+  .bcs-smtp-alerts-head{padding:18px}
+  .bcs-smtp-alerts-card .bcs-smtp-reveal{padding:0 18px}
+  .bcs-smtp-ch-sub{display:none}
+  .bcs-smtp-ch .bcs-smtp-webhook{padding:4px 14px 14px}
+  .bcs-smtp-alerts-card .bcs-smtp-card-foot{padding:14px 18px}
+  .bcs-smtp-alerts-card .bcs-smtp-alerts-off,.bcs-smtp-alerts-card .bcs-smtp-msg{margin-left:18px;margin-right:18px}
+}
+
+/* Connection — header, labelled rows, provider chips, footer */
+.bcs-smtp-setup{padding:0;overflow:hidden;display:flex;flex-direction:column}
+.bcs-smtp-setup-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:22px 24px}
+.bcs-smtp-setup-badge,.bcs-smtp-test-badge{display:grid!important;place-items:center;width:42px!important;height:42px!important;border-radius:11px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:20px!important}
+.bcs-smtp-setup-head h2{margin:0 0 3px;font-size:16px;line-height:1.3}
+.bcs-smtp-setup-head h2 label{cursor:pointer}
+.bcs-smtp-setup-head p{font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-provider-chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(138px,1fr));gap:6px}
+.bcs-smtp-provider-chips .bcs-smtp-provider{min-height:40px;padding:6px 10px;gap:9px;border-radius:9px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-mark{width:24px;height:24px;border-radius:6px;font-size:10px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-mark .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-inline-switch{display:flex;align-items:flex-start;gap:10px;margin:14px 0 0;font-size:13.5px;color:var(--bcs-ink);cursor:pointer;line-height:1.45}
+.bcs-smtp-toggle--sm{width:34px;height:20px;margin-top:1px}
+.bcs-smtp-toggle--sm .bcs-smtp-toggle-slider::before{width:14px;height:14px}
+.bcs-smtp-toggle--sm input:checked + .bcs-smtp-toggle-slider::before{transform:translateX(14px)}
+.bcs-smtp-setup-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:auto;padding:16px 24px;border-top:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-setup-foot .bcs-smtp-msg{flex-basis:100%;margin-top:0}
+.bcs-smtp-test-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:6px}
+.bcs-smtp-test .bcs-smtp-test-badge{flex-shrink:0;background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-test-head h2{margin:0 0 3px;font-size:16px}
+.bcs-smtp-test-head p{font-size:13px!important;color:var(--bcs-ink-2);line-height:1.5}
+@media (max-width:782px){
+  .bcs-smtp-setup-head{padding:18px}
+  .bcs-smtp-setup-body{padding:4px 18px 20px}
+  .bcs-smtp-setup-body .bcs-smtp-field-row .bcs-smtp-field + .bcs-smtp-field{margin-top:14px!important}
+  .bcs-smtp-setup-foot{padding:14px 18px}
+  .bcs-smtp-setup-foot .bcs-smtp-btn{flex:1 1 100%}
+  .bcs-smtp-provider-chips{grid-template-columns:repeat(2,minmax(0,1fr))}
+}
+
+/* Connection — one compact column */
+.bcs-smtp-setup-body{display:flex;flex-direction:column;gap:20px;padding:4px 24px 24px}
+.bcs-smtp-setup-body .bcs-smtp-field,.bcs-smtp-setup-body .bcs-smtp-field-row .bcs-smtp-field{margin-top:0}
+.bcs-smtp-setup-body .bcs-smtp-field-row{gap:14px}
+.bcs-smtp-setup-body .bcs-smtp-field-label{margin-bottom:7px}
+.bcs-smtp-setup-body .bcs-smtp-provider-chips{grid-template-columns:repeat(auto-fill,minmax(118px,1fr))}
+.bcs-smtp-setup-body .bcs-smtp-provider-note{margin-top:8px!important;padding:0;background:none;border:0;font-size:12.5px!important;color:var(--bcs-ink-3)}
+.bcs-smtp-setup-body .bcs-smtp-provider-note .dashicons{font-size:15px;width:15px;height:15px;margin-top:1px}
+.bcs-smtp-setup-body .bcs-smtp-auth-warning{margin:0}
+.bcs-smtp-setup-body .bcs-smtp-disclosure{margin:0}
+.bcs-smtp-setup-body .bcs-smtp-disclosure-body .bcs-smtp-field{margin-top:14px}
+.bcs-smtp-setup-body .bcs-smtp-disclosure-body .bcs-smtp-field-row .bcs-smtp-field{margin-top:0}
+#bcs-smtp-pw-status:empty,#bcs-smtp-pw-status.is-good{display:none}
+.bcs-smtp-setup-head{border-bottom:0}
+.bcs-smtp-setup-body .bcs-smtp-auth-switch{margin:0 0 -6px}
+.bcs-smtp-provider-picked{display:flex;align-items:center;gap:11px;min-height:44px;padding:7px 14px 7px 9px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam-strong)}
+.bcs-smtp-provider-picked[hidden]{display:none}
+.bcs-smtp-provider-picked .bcs-smtp-provider-mark{width:28px;height:28px;border-radius:7px;font-size:10.5px;background:var(--tone);border-color:var(--tone);color:#fff}
+.bcs-smtp-picked-name{flex:1;min-width:0;font-size:14px;font-weight:600;color:var(--bcs-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-provider-picked .bcs-smtp-link{font-weight:600}
+.bcs-smtp-setup .bcs-smtp-smtp-off{margin:0 24px 24px}
+.bcs-smtp-setup .bcs-smtp-smtp-off .dashicons{color:var(--bcs-warn)}
+.bcs-smtp-setup-body[hidden]{display:none}

bcs-smtp-manager/tags/1.3.0/assets/js/admin.js

@@ -1 @@
-/* global bcsSmtpData, jQuery, Chart */
+/* global bcsSmtpData, jQuery */
 ( function ( $ ) {
 'use strict';
 
-/* Always dark mode */
-document.documentElement.setAttribute( 'data-bcs-smtp-theme', 'dark' );
+var i18n = ( bcsSmtpData && bcsSmtpData.i18n ) || {};
+var T = function ( key, fallback ) { return i18n[ key ] || fallback || ''; };
+
+/* Minimal sprintf for %s / %1$s placeholders in translated strings. */
+function fmt( str ) {
+        var args = Array.prototype.slice.call( arguments, 1 );
+        var i = 0;
+        return String( str ).replace( /%(\d+)\$s|%s/g, function ( m, n ) {
+                return n ? args[ n - 1 ] : args[ i++ ];
+        } );
+}
+
+/* Storage can throw in private windows or with blocked site data. */
+var store = {
+        get: function ( k ) { try { return window.localStorage.getItem( k ); } catch ( e ) { return null; } },
+        set: function ( k, v ) { try { window.localStorage.setItem( k, v ); } catch ( e ) {} }
+};
 
 /* =====================================================================
-   Tab Navigation — with persistence
+   Busy-state + message helpers
    ===================================================================== */
-var TAB_KEY = 'bcs_smtp_active_tab';
-
-function getStoredTab() { return localStorage.getItem( TAB_KEY ) || 'settings'; }
-
-/* Scroll the tab bar so $tab's left edge aligns with the container's left edge —
-   keeps the active tab pinned to the start instead of wherever it happened to land. */
-function scrollTabIntoViewLeft( $tab, $container ) {
-        if ( ! $tab.length || ! $container.length ) { return; }
-        var containerEl = $container[ 0 ];
-        var delta = $tab[ 0 ].getBoundingClientRect().left - containerEl.getBoundingClientRect().left;
-        containerEl.scrollLeft += delta;
-}
-
-function setActiveTab( panel ) {
-        localStorage.setItem( TAB_KEY, panel );
-        $( '.bcs-smtp-tab' ).removeClass( 'active' );
-        var $activeTab = $( '.bcs-smtp-tab[data-panel="' + panel + '"]' ).addClass( 'active' );
-        scrollTabIntoViewLeft( $activeTab, $( '.bcs-smtp-tabs' ) );
+function setBusy( $btn, label ) {
+        if ( ! $btn.data( 'bcsLabel' ) ) { $btn.data( 'bcsLabel', $btn.html() ); }
+        $btn.prop( 'disabled', true ).addClass( 'is-busy' ).attr( 'aria-busy', 'true' ).text( label );
+}
+function clearBusy( $btn ) {
+        $btn.prop( 'disabled', false ).removeClass( 'is-busy' ).removeAttr( 'aria-busy' );
+        if ( $btn.data( 'bcsLabel' ) ) { $btn.html( $btn.data( 'bcsLabel' ) ); }
+}
+
+function alertHtml( type, msg ) {
+        var icons = { success: 'yes-alt', error: 'dismiss', warning: 'warning', info: 'info-outline' };
+        return '<div class="bcs-smtp-alert bcs-smtp-alert-' + type + '">' +
+                '<span class="dashicons dashicons-' + ( icons[ type ] || icons.info ) + '" aria-hidden="true"></span>' +
+                '<div class="bcs-smtp-alert-content">' + msg + '</div></div>';
+}
+
+function showInlineMsg( selector, type, msg ) {
+        var $el = $( selector );
+        clearTimeout( $el.data( 'bcsHideTimer' ) );
+        $el.html( alertHtml( type, msg ) );
+        // Errors and warnings stay until the next message so they can actually be read.
+        if ( type !== 'success' ) { return; }
+        $el.data( 'bcsHideTimer', setTimeout( function () { $el.empty(); }, 7000 ) );
+}
+
+function toast( type, msg ) {
+        var $t = $( '#bcs-smtp-toast' );
+        clearTimeout( $t.data( 'bcsHideTimer' ) );
+        $t.html( alertHtml( type, msg ) );
+        $t.data( 'bcsHideTimer', setTimeout( function () { $t.empty(); }, type === 'success' ? 4000 : 9000 ) );
+}
+
+function errorText( r, fallback ) {
+        if ( r && r.data ) {
+                if ( typeof r.data === 'string' ) { return r.data; }
+                if ( r.data.message ) { return r.data.message; }
+        }
+        return fallback;
+}
+function failText( xhr ) {
+        return xhr && xhr.status ? fmt( T( 'requestFailedCode' ), xhr.status ) : T( 'requestFailed' );
+}
+
+/* =====================================================================
+   Overview health banner — re-rendered from saved state after anything that
+   changes it (save, health check, test email), so it never shows a stale verdict.
+   ===================================================================== */
+var healthDirty = false;
+var overviewShown = false;
+
+function refreshHealthBanner() {
+        healthDirty = false;
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_get_health_banner', nonce: bcsSmtpData.nonce }, function ( r ) {
+                if ( r && r.success && r.data && r.data.html ) {
+                        $( '#bcs-smtp-health-banner' ).html( r.data.html );
+                        syncConnectionDot();
+                }
+        } );
+}
+
+/* After a save, test or check the banner is re-rendered right away, even from another tab,
+   so the Connection tab's status dot never shows an old result. */
+function markHealthDirty() {
+        refreshHealthBanner();
+}
+
+/* The Connection tab's dot mirrors the Overview banner: green flowing, red failing, amber otherwise */
+function syncConnectionDot() {
+        var $hero = $( '#bcs-smtp-health-banner .bcs-smtp-hero' );
+        if ( ! $hero.length ) { return; }
+        var tone = ( /bcs-smtp-hero--(ok|bad|warn|off)/.exec( $hero.attr( 'class' ) ) || [] )[ 1 ] || 'off';
+        $( '#bcs-smtp-conn-dot' ).attr( 'data-tone', 'off' === tone ? 'warn' : tone );
+        $( '#bcs-smtp-conn-dot-label' ).text( ' (' + $.trim( $hero.find( '#bcs-smtp-hero-title' ).text() ) + ')' );
+}
+
+/* The active tab's highlight slides between tabs instead of jumping */
+function movePill( instant ) {
+        var $nav = $( '.bcs-smtp-tabs' );
+        var tab  = $nav.find( '.bcs-smtp-tab[aria-selected="true"]' )[ 0 ];
+        var pill = $nav.find( '.bcs-smtp-tab-pill' )[ 0 ];
+        if ( ! tab || ! pill ) { return; }
+        $nav.toggleClass( 'is-instant', !! instant ).addClass( 'has-pill' );
+        pill.style.width     = tab.offsetWidth + 'px';
+        pill.style.height    = tab.offsetHeight + 'px';
+        pill.style.transform = 'translate(' + tab.offsetLeft + 'px,' + tab.offsetTop + 'px)';
+        if ( instant ) { setTimeout( function () { $nav.removeClass( 'is-instant' ); }, 50 ); }
+}
+$( window ).on( 'resize', function () { movePill( true ); } );
+if ( document.fonts && document.fonts.ready ) { document.fonts.ready.then( function () { movePill( true ); } ); }
+
+/* =====================================================================
+   Tabs — ARIA tablist with arrow-key support and persistence
+   ===================================================================== */
+var TAB_KEY = 'bcs_smtp_tab_v2';
+var emailLogLoaded = false;
+
+function setActiveTab( panel, focusTab ) {
+        var $tab = $( '.bcs-smtp-tab[data-panel="' + panel + '"]' );
+        if ( ! $tab.length ) { panel = 'overview'; $tab = $( '.bcs-smtp-tab[data-panel="overview"]' ); }
+        store.set( TAB_KEY, panel );
+        // Keep the URL fragment in step with the active tab, so a refresh (or a copied link)
+        // opens the tab you were on instead of whichever one the URL happened to name.
+        if ( window.history && history.replaceState && window.location.hash !== '#' + panel ) {
+                history.replaceState( null, '', window.location.pathname + window.location.search + '#' + panel );
+        }
+
+        var firstPaint = ! $( '.bcs-smtp-tabs' ).hasClass( 'has-pill' );
+        $( '.bcs-smtp-tab' ).attr( { 'aria-selected': 'false', tabindex: '-1' } );
+        $tab.attr( { 'aria-selected': 'true', tabindex: '0' } );
+        movePill( firstPaint );
+        if ( focusTab ) { $tab.trigger( 'focus' ); }
+
+        var tabsEl = $( '.bcs-smtp-tabs' )[ 0 ];
+        if ( tabsEl && $tab[ 0 ] ) {
+                var delta = $tab[ 0 ].getBoundingClientRect().left - tabsEl.getBoundingClientRect().left;
+                if ( delta < 0 || delta + $tab[ 0 ].offsetWidth > tabsEl.clientWidth ) { tabsEl.scrollLeft += delta - 8; }
+        }
+
         $( '.bcs-smtp-tab-panel' ).removeClass( 'active' );
         $( '#bcs-smtp-panel-' + panel ).addClass( 'active' );
 
-        // Lazy-load data on first visit to these panels
-        if ( panel === 'email-log' && ! emailLogLoaded ) {
-                emailLogLoaded = true;
-                loadEmailLog();
-        }
-        if ( panel === 'email-report' && ! emailReportLoaded ) {
-                emailReportLoaded = true;
-                loadEmailReport();
-        }
+        // Background health checks can change the verdict too, so redraw on every return to Overview.
+        if ( panel === 'overview' ) { initOverviewChart(); if ( healthDirty || overviewShown ) { refreshHealthBanner(); } overviewShown = true; }
+        if ( panel === 'email-log' && ! emailLogLoaded ) { emailLogLoaded = true; loadEmailLog(); }
+        if ( panel === 'reports' ) { initReportChart(); }
 }
 
@@ -45 +155 @@
 } );
 
-$( function () {
-        var stored = getStoredTab();
-        if ( stored && $( '.bcs-smtp-tab[data-panel="' + stored + '"]' ).length ) {
-                setActiveTab( stored );
-        }
+$( document ).on( 'keydown', '.bcs-smtp-tab', function ( e ) {
+        var $tabs = $( '.bcs-smtp-tab' );
+        var idx   = $tabs.index( this );
+        var next  = null;
+        if ( e.key === 'ArrowRight' ) { next = ( idx + 1 ) % $tabs.length; }
+        if ( e.key === 'ArrowLeft' )  { next = ( idx - 1 + $tabs.length ) % $tabs.length; }
+        if ( e.key === 'Home' )       { next = 0; }
+        if ( e.key === 'End' )        { next = $tabs.length - 1; }
+        if ( next === null ) { return; }
+        e.preventDefault();
+        setActiveTab( $tabs.eq( next ).data( 'panel' ), true );
+} );
+
+/* Any [data-goto] control jumps to a tab; optional data-focus moves focus, data-provider-pick preselects. */
+$( document ).on( 'click', '[data-goto]', function ( e ) {
+        e.preventDefault();
+        var $el = $( this );
+        var logStatus = $el.data( 'log-status' );
+        if ( logStatus !== undefined ) {
+                $( '.bcs-smtp-log-status-radio[value="' + logStatus + '"]' ).prop( 'checked', true );
+                $( '#bcs-smtp-log-status' ).val( logStatus );
+                if ( emailLogLoaded ) { loadEmailLog( 1 ); }
+        }
+        setActiveTab( $el.data( 'goto' ) );
+        var pick = $el.data( 'provider-pick' );
+        if ( pick ) {
+                $( '.bcs-smtp-provider-radio[value="' + pick + '"]' ).prop( 'checked', true ).trigger( 'change' );
+        }
+        var focus = $el.data( 'focus' );
+        window.scrollTo( { top: 0, behavior: 'auto' } );
+        if ( focus ) { setTimeout( function () { $( focus ).trigger( 'focus' ); }, 30 ); }
 } );
 
 /* =====================================================================
-   Accordion toggle
+   CONNECTION: provider presets
    ===================================================================== */
-$( document ).on( 'click', '.bcs-smtp-accordion-head', function () {
-        $( this ).closest( '.bcs-smtp-accordion' ).toggleClass( 'open' );
-} );
-
-/* =====================================================================
-   SETTINGS TAB: SMTP toggle → accordion
-   ===================================================================== */
+var ENC_PORTS = { ssl: 465, tls: 587, none: 25 };
+var PRESET_HOSTS = $( '.bcs-smtp-provider-radio' ).not( '[value="other"]' ).map( function () { return $( this ).data( 'host' ); } ).get().filter( Boolean );
+var PRESET_USERS = $( '.bcs-smtp-provider-radio' ).map( function () { return $( this ).data( 'user' ); } ).get().filter( Boolean );
+
+function updateServerSummary() {
+        var host = $.trim( $( '#bcs-smtp-smtp-host' ).val() );
+        var port = $( '#bcs-smtp-smtp-port' ).val();
+        var enc  = ( $( '.bcs-smtp-enc-radio:checked' ).val() || '' ).toUpperCase();
+        $( '#bcs-smtp-server-summary' ).text( host ? host + ' · ' + port + ' · ' + enc : T( 'pickServer' ) );
+}
+
+function setDisclosure( $d, open ) {
+        $d.toggleClass( 'is-open', open ).find( '.bcs-smtp-disclosure-head' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+}
+
+$( document ).on( 'click', '.bcs-smtp-disclosure-head', function () {
+        var $d = $( this ).closest( '.bcs-smtp-disclosure' );
+        setDisclosure( $d, ! $d.hasClass( 'is-open' ) );
+} );
+
+/* Remember what was typed for each provider while the user clicks around, so switching
+   to another provider and back never loses a server, port, encryption or username. */
+var providerMemory  = {};
+var currentProvider = $( '.bcs-smtp-provider-radio:checked' ).val() || '';
+
+function readConnectionFields() {
+        return {
+                host : $( '#bcs-smtp-smtp-host' ).val(),
+                port : $( '#bcs-smtp-smtp-port' ).val(),
+                enc  : $( '.bcs-smtp-enc-radio:checked' ).val(),
+                user : $( '#bcs-smtp-smtp-username' ).val()
+        };
+}
+
+function writeConnectionFields( f ) {
+        $( '#bcs-smtp-smtp-host' ).val( f.host );
+        $( '#bcs-smtp-smtp-port' ).val( f.port );
+        if ( f.enc ) { $( '.bcs-smtp-enc-radio[value="' + f.enc + '"]' ).prop( 'checked', true ); }
+        $( '#bcs-smtp-smtp-username' ).val( f.user );
+}
+
+/* SMTP switch off: the form folds away, like the Alerts card, and a note says what that means */
 $( document ).on( 'change', '#bcs-smtp-smtp-enabled', function () {
-        $( '#bcs-smtp-smtp-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Encryption radio → auto-fill port */
-var ENC_PORTS = { ssl: 465, tls: 587, none: 25 };
+        $( '#bcs-smtp-setup-body' ).prop( 'hidden', ! this.checked );
+        $( '#bcs-smtp-smtp-off' ).prop( 'hidden', this.checked );
+} );
+
+/* Provider picker: after a choice, show just that provider with a Change link */
+function syncPickedProvider() {
+        var $r = $( '.bcs-smtp-provider-radio:checked' );
+        if ( ! $r.length ) { return; }
+        var $chip = $r.closest( '.bcs-smtp-provider' );
+        $( '#bcs-smtp-picked-mark' ).html( $chip.find( '.bcs-smtp-provider-mark' ).html() ).attr( 'style', $chip.attr( 'style' ) );
+        $( '#bcs-smtp-picked-name' ).text( $chip.attr( 'title' ) );
+}
+function setProviderListOpen( open ) {
+        if ( ! $( '.bcs-smtp-provider-radio:checked' ).length ) { open = true; } // Nothing chosen yet: the list stays.
+        $( '#bcs-smtp-provider-chips' ).prop( 'hidden', ! open );
+        $( '#bcs-smtp-provider-picked' ).prop( 'hidden', open );
+        $( '#bcs-smtp-provider-change' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+}
+$( document ).on( 'click', '#bcs-smtp-provider-change', function () {
+        setProviderListOpen( true );
+        $( '.bcs-smtp-provider-radio:checked' ).trigger( 'focus' );
+} );
+/* A pointer pick closes the list straight away; keyboard users can arrow through it and it closes when they move on.
+   Pressing the mouse on a chip moves focus off the current one before the click lands, so focus leaving
+   during a press inside the list must not close it. */
+var providerPress = false;
+$( document ).on( 'mousedown touchstart', '#bcs-smtp-provider-chips', function () { providerPress = true; } );
+$( document ).on( 'click', '.bcs-smtp-provider', function ( e ) {
+        if ( e.target.tagName === 'INPUT' ) { return; } // The label's own click already handled this pick.
+        providerPress = false;
+        setTimeout( function () { syncPickedProvider(); setProviderListOpen( false ); }, 0 );
+} );
+$( document ).on( 'mouseup touchend', function () {
+        // A press that started in the list but ended outside it picked nothing; forget it.
+        setTimeout( function () { providerPress = false; }, 0 );
+} );
+$( document ).on( 'mousedown touchstart', function ( e ) {
+        // Clicking anywhere else closes an open list, even when nothing inside it holds focus.
+        if ( $( '#bcs-smtp-provider-chips' ).prop( 'hidden' ) ) { return; }
+        if ( $( e.target ).closest( '#bcs-smtp-provider-chips, #bcs-smtp-provider-change' ).length ) { return; }
+        syncPickedProvider();
+        setProviderListOpen( false );
+} );
+$( document ).on( 'focusout', '#bcs-smtp-provider-chips', function ( e ) {
+        if ( providerPress ) { return; }
+        if ( e.relatedTarget && $( e.relatedTarget ).closest( '#bcs-smtp-provider-chips' ).length ) { return; }
+        syncPickedProvider();
+        setProviderListOpen( false );
+} );
+
+$( document ).on( 'change', '.bcs-smtp-provider-radio', function () {
+        var $r      = $( this );
+        var d       = $r.data();
+        var key     = $r.val();
+        var isOther = key === 'other';
+        var $user   = $( '#bcs-smtp-smtp-username' );
+
+        if ( currentProvider && currentProvider !== key ) {
+                providerMemory[ currentProvider ] = readConnectionFields();
+        }
+
+        if ( providerMemory[ key ] ) {
+                // Been here before in this visit: put back exactly what was there.
+                writeConnectionFields( providerMemory[ key ] );
+        } else {
+                var f = readConnectionFields();
+                if ( isOther ) {
+                        // Bring back the last saved custom server; never carry another provider's server over.
+                        if ( d.host ) {
+                                f.host = d.host;
+                                f.port = d.port;
+                                f.enc  = d.enc;
+                        } else if ( PRESET_HOSTS.indexOf( $.trim( f.host ) ) !== -1 ) {
+                                f.host = '';
+                        }
+                } else {
+                        f.host = d.host;
+                        f.port = d.port;
+                        f.enc  = d.enc;
+                }
+                // Fixed usernames (SendGrid's "apikey") are set; one left over from such a preset is cleared.
+                if ( d.user ) {
+                        f.user = d.user;
+                } else if ( PRESET_USERS.indexOf( $.trim( f.user ) ) !== -1 ) {
+                        f.user = '';
+                }
+                writeConnectionFields( f );
+        }
+        currentProvider = key;
+
+        $( '#bcs-smtp-user-hint' ).text( d.userHint || '' );
+        $user.attr( 'placeholder', d.userHint || '' );
+        $( '#bcs-smtp-pass-label' ).text( d.passLabel || '' );
+        $( '#bcs-smtp-provider-note-text' ).text( d.note || '' );
+        var $link = $( '#bcs-smtp-provider-note-link' );
+        if ( d.link ) {
+                $link.attr( 'href', d.link ).prop( 'hidden', false );
+                $( '#bcs-smtp-provider-note-link-text' ).text( d.linkLabel || '' );
+        } else {
+                $link.prop( 'hidden', true );
+        }
+        $( '#bcs-smtp-provider-note' ).prop( 'hidden', false );
+
+        // "Other", and presets without a fixed server (Amazon SES is per region), need the server typed in.
+        var needsHost = isOther || ! d.host;
+        setDisclosure( $( '#bcs-smtp-server-details' ), needsHost || ! $.trim( $( '#bcs-smtp-smtp-host' ).val() ) );
+        updateServerSummary();
+
+        if ( needsHost && ! $.trim( $( '#bcs-smtp-smtp-host' ).val() ) ) {
+                $( '#bcs-smtp-smtp-host' ).trigger( 'focus' );
+        } else if ( ! $.trim( $user.val() ) ) {
+                $user.trigger( 'focus' );
+        }
+} );
+
+/* Encryption radio → auto-fill port (only when the port is still a standard one) */
 $( document ).on( 'change', '.bcs-smtp-enc-radio', function () {
-        var enc  = $( this ).val();
-        var $port = $( '#bcs-smtp-smtp-port' );
-        // Only auto-fill if the user hasn't customised the port
+        var $port   = $( '#bcs-smtp-smtp-port' );
         var current = parseInt( $port.val(), 10 );
-        var knownPorts = [ 25, 465, 587 ];
-        if ( knownPorts.indexOf( current ) !== -1 || ! current ) {
-                $port.val( ENC_PORTS[ enc ] || 587 );
-        }
-} );
+        if ( [ 25, 465, 587 ].indexOf( current ) !== -1 || ! current ) {
+                $port.val( ENC_PORTS[ $( this ).val() ] || 587 );
+        }
+        updateServerSummary();
+} );
+$( document ).on( 'input', '#bcs-smtp-smtp-host, #bcs-smtp-smtp-port', updateServerSummary );
 
 /* Auth toggle → show/hide username + password */
+/* Warn when sign-in is off for a provider that always requires it */
+function syncAuthWarning() {
+        var $p   = $( '.bcs-smtp-provider-radio:checked' );
+        var need = $p.length && $p.val() !== 'other' && ! $( '#bcs-smtp-smtp-auth' ).is( ':checked' );
+        if ( need ) {
+                $( '#bcs-smtp-auth-warning-title' ).text( fmt( T( 'needsAuth', '%s needs a username and password.' ), $.trim( $p.closest( 'label' ).find( '.bcs-smtp-provider-name' ).text() ) ) );
+        }
+        $( '#bcs-smtp-auth-warning' ).prop( 'hidden', ! need );
+}
+
 $( document ).on( 'change', '#bcs-smtp-smtp-auth', function () {
-        $( '#bcs-smtp-auth-fields' ).toggle( this.checked );
+        $( '#bcs-smtp-auth-fields' ).prop( 'hidden', ! this.checked );
+        syncAuthWarning();
+} );
+$( document ).on( 'change', '.bcs-smtp-provider-radio', syncAuthWarning );
+
+/* Password: change / keep / show */
+function showSavedPassword() {
+        $( '#bcs-smtp-pw-input' ).prop( 'hidden', true );
+        $( '#bcs-smtp-cancel-pw-btn' ).prop( 'hidden', true );
+        $( '#bcs-smtp-pw-display' ).prop( 'hidden', false );
+        $( '#bcs-smtp-smtp-password' ).val( '' );
+        $( '#bcs-smtp-pw-status' ).removeClass( 'is-bad' ).addClass( 'is-good' ).text( T( 'pwSaved' ) );
+}
+$( document ).on( 'click', '#bcs-smtp-change-pw-btn', function () {
+        $( '#bcs-smtp-pw-display' ).prop( 'hidden', true );
+        $( '#bcs-smtp-pw-input' ).prop( 'hidden', false );
+        $( '#bcs-smtp-cancel-pw-btn' ).prop( 'hidden', false );
+        $( '#bcs-smtp-smtp-password' ).val( '' ).trigger( 'focus' );
+        $( '#bcs-smtp-pw-status' ).removeClass( 'is-good is-bad' ).text( T( 'pwChanging' ) );
+} );
+$( document ).on( 'click', '#bcs-smtp-cancel-pw-btn', function ( e ) {
+        e.preventDefault();
+        showSavedPassword();
+        $( '#bcs-smtp-change-pw-btn' ).trigger( 'focus' );
+} );
+$( document ).on( 'click', '#bcs-smtp-toggle-pw-btn', function () {
+        var $input = $( '#bcs-smtp-smtp-password' );
+        var hidden = $input.attr( 'type' ) === 'password';
+        $input.attr( 'type', hidden ? 'text' : 'password' );
+        $( this ).attr( 'aria-label', hidden ? T( 'hidePw' ) : T( 'showPw' ) )
+                .find( '.dashicons' ).toggleClass( 'dashicons-visibility', ! hidden ).toggleClass( 'dashicons-hidden', hidden );
 } );
 
 /* Save SMTP settings */
+/* Unsaved changes on the Connection card: only real edits count, not values the page fills in itself */
+$( document ).on( 'input change', '.bcs-smtp-setup input', function ( e ) {
+        if ( e.originalEvent ) { $( '#bcs-smtp-smtp-unsaved' ).prop( 'hidden', false ); }
+} );
+
 $( document ).on( 'click', '#bcs-smtp-save-smtp-btn', function () {
         var $btn      = $( this );
-        var hasHost   = $( '#bcs-smtp-smtp-host' ).val().trim() !== '';
+        var hasHost   = $.trim( $( '#bcs-smtp-smtp-host' ).val() ) !== '';
         var isEnabled = $( '#bcs-smtp-smtp-enabled' ).is( ':checked' );
-        var btnLabel  = '<span class="dashicons dashicons-saved"></span> Save SMTP Settings';
-
-        $btn.prop( 'disabled', true ).html(
-                '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> ' +
-                ( isEnabled && hasHost ? 'Saving & testing connection…' : 'Saving…' )
-        );
+        var newPw     = $( '#bcs-smtp-smtp-password' ).val();
+
+        setBusy( $btn, isEnabled && hasHost ? T( 'savingTesting' ) : T( 'saving' ) );
 
         $.post( bcsSmtpData.ajaxurl, {
@@ -108 +431 @@
                 smtp_auth       : $( '#bcs-smtp-smtp-auth' ).is( ':checked' ) ? 1 : 0,
                 smtp_username   : $( '#bcs-smtp-smtp-username' ).val(),
-                smtp_password   : $( '#bcs-smtp-smtp-password' ).val(),
+                smtp_password   : newPw,
+                provider        : $( '.bcs-smtp-provider-radio:checked' ).val() || '',
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnLabel );
-
+                clearBusy( $btn );
                 if ( ! r || ! r.success ) {
-                        var errMsg = ( r && r.data ) ? r.data : 'Save failed — check server error logs.';
-                        showInlineMsg( '#bcs-smtp-smtp-msg', 'error', errMsg );
+                        showInlineMsg( '#bcs-smtp-smtp-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                         return;
                 }
-
-                // Update password display after save
-                var newPw = $( '#bcs-smtp-smtp-password' ).val();
-                if ( newPw !== '' && r.data.password_set ) {
-                        // New password saved — switch back to masked display + Change button
-                        $( '#bcs-smtp-pw-display' )
-                                .css( 'display', 'flex' )
-                                .html(
-                                        '<input type="password" class="bcs-smtp-input" value="placeholder_pw" disabled style="flex:1" aria-label="Saved password (masked)">' +
-                                        '<button type="button" id="bcs-smtp-change-pw-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" style="flex-shrink:0;white-space:nowrap">' +
-                                        '<span class="dashicons dashicons-edit"></span> Change</button>'
-                                );
-                        $( '#bcs-smtp-pw-input' ).hide();
-                        $( '#bcs-smtp-smtp-password' ).val( '' );
-                        $( '#bcs-smtp-pw-status' )
-                                .text( '✓ Password saved — leave blank to keep it.' )
-                                .css( 'color', 'var(--bcs-smtp-emerald)' );
-                }
-
-                // Show save result
+                if ( newPw !== '' && r.data.password_set ) { showSavedPassword(); }
+                $( '#bcs-smtp-smtp-unsaved' ).prop( 'hidden', true );
+
                 var msg = '<strong>' + r.data.message + '</strong>';
-
-                // Show connection test result if returned
                 if ( r.data.connection ) {
                         var conn = r.data.connection;
-                        if ( conn.success ) {
-                                msg += '<br><span style="color:var(--bcs-smtp-emerald)">✓ ' + conn.message + '</span>';
-                        } else {
-                                msg += '<br><span style="color:var(--bcs-smtp-rose)">✗ Connection failed: ' + conn.message + '</span>';
-                        }
-                        // Use warning type if connection failed (settings saved but not reachable)
+                        msg += conn.success
+                                ? '<br><span class="is-good">' + conn.message + '</span>'
+                                : '<br><span class="is-bad">' + T( 'connFailed' ) + ' ' + conn.message + '</span>';
                         showInlineMsg( '#bcs-smtp-smtp-msg', conn.success ? 'success' : 'warning', msg );
+                        markHealthDirty();
+                        if ( conn.success ) { $( '#bcs-smtp-send-test-btn' ).trigger( 'focus' ); }
                 } else {
                         showInlineMsg( '#bcs-smtp-smtp-msg', 'success', msg );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( btnLabel );
-                var detail = xhr.status ? ' (HTTP ' + xhr.status + ')' : '';
-                showInlineMsg( '#bcs-smtp-smtp-msg', 'error', 'Request failed' + detail + ' — check server error logs or enable WP_DEBUG.' );
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-smtp-msg', 'error', failText( xhr ) );
         } );
 } );
 
 /* =====================================================================
-   EMAIL LOG TAB
+   Test email + health check
    ===================================================================== */
-var emailLogLoaded = false;
+$( document ).on( 'click', '#bcs-smtp-send-test-btn', function () {
+        var $btn = $( this );
+        var to   = $.trim( $( '#bcs-smtp-test-to' ).val() );
+        if ( ! to ) {
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', T( 'enterRecipient' ) );
+                $( '#bcs-smtp-test-to' ).trigger( 'focus' );
+                return;
+        }
+        setBusy( $btn, T( 'sending' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_send_test', nonce: bcsSmtpData.nonce, to: to }, function ( r ) {
+                clearBusy( $btn );
+                if ( r && r.success ) {
+                        showInlineMsg( '#bcs-smtp-test-msg', 'success', r.data.message );
+                        return;
+                }
+                // Error payload is either { message, failure_type } or a plain string (validation / rate limit).
+                var d   = r ? r.data : null;
+                var msg = ! d ? T( 'testFailed' )
+                        : ( typeof d === 'string' ? d
+                        : ( d.failure_type ? '<strong>' + d.failure_type + ':</strong> ' + d.message : d.message ) );
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', msg );
+        } ).fail( function ( xhr ) {
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', failText( xhr ) );
+        } );
+} );
+
+$( document ).on( 'click', '[data-check-now]', function () {
+        var $btn  = $( this );
+        var msgEl = $btn.data( 'msg' );
+        setBusy( $btn, T( 'checking' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_check_now', nonce: bcsSmtpData.nonce }, function ( r ) {
+                clearBusy( $btn );
+                if ( r && r.success ) {
+                        showInlineMsg( msgEl, r.data.success ? 'success' : 'error', r.data.message );
+                        markHealthDirty();
+                } else {
+                        showInlineMsg( msgEl, 'error', errorText( r, T( 'checkFailed' ) ) );
+                }
+        } ).fail( function ( xhr ) {
+                clearBusy( $btn );
+                showInlineMsg( msgEl, 'error', failText( xhr ) );
+        } );
+} );
+
+/* =====================================================================
+   EMAIL LOG
+   ===================================================================== */
 var emailLogPage      = 1;
 var emailLogSearchTmr = null;
 
 function emailLogSkeletonHtml() {
-        var widths = [ 85, 150, 120, 120, 64, 90, 70 ];
-        var row    = '<tr class="bcs-smtp-skeleton-row">' + widths.map( function ( w ) {
-                return '<td><span class="bcs-smtp-skel" style="width:' + w + 'px"></span></td>';
+        var widths = [ 60, 78, 66, 54, 30 ];
+        var row = '<tr class="bcs-smtp-skeleton-row" aria-hidden="true">' + widths.map( function ( w ) {
+                return '<td><span class="bcs-smtp-skel" style="width:' + w + '%"></span></td>';
         } ).join( '' ) + '</tr>';
         return new Array( 6 ).fill( row ).join( '' );
@@ -178 +526 @@
         emailLogPage = page;
         var $tbody = $( '#bcs-smtp-log-tbody' );
-        $tbody.html( emailLogSkeletonHtml() );
+        $tbody.attr( 'aria-busy', 'true' ).html( emailLogSkeletonHtml() );
 
         $.post( bcsSmtpData.ajaxurl, {
-                action      : 'bcs_smtp_get_email_log',
-                nonce       : bcsSmtpData.nonce,
-                page        : page,
-                per_page    : parseInt( $( '#bcs-smtp-log-per-page' ).val(), 10 ) || 10,
-                status      : $( '#bcs-smtp-log-status' ).val(),
-                search      : $( '#bcs-smtp-log-search' ).val(),
-                date_range  : $( '#bcs-smtp-log-date-range' ).val(),
+                action     : 'bcs_smtp_get_email_log',
+                nonce      : bcsSmtpData.nonce,
+                page       : page,
+                per_page   : parseInt( $( '#bcs-smtp-log-per-page' ).val(), 10 ) || 25,
+                status     : $( '#bcs-smtp-log-status' ).val(),
+                search     : $( '#bcs-smtp-log-search' ).val(),
+                date_range : $( '#bcs-smtp-log-date-range' ).val(),
         }, function ( r ) {
+                $tbody.removeAttr( 'aria-busy' );
                 if ( r && r.success ) {
                         $tbody.html( r.data.html );
-                        var info = 'Page ' + r.data.page + ' of ' + ( r.data.pages || 1 ) + ' — ' + r.data.total + ' email(s)';
-                        $( '#bcs-smtp-log-page-info' ).text( info );
+                        $.each( r.data.counts || {}, function ( key, n ) {
+                                $( '.bcs-smtp-seg-count[data-count="' + key + '"]' ).text( n );
+                        } );
+                        $( '#bcs-smtp-log-page-info' ).text( fmt( T( 'pageInfo' ), r.data.page, r.data.pages || 1, r.data.total ) );
                         $( '#bcs-smtp-log-prev' ).prop( 'disabled', page <= 1 );
                         $( '#bcs-smtp-log-next' ).prop( 'disabled', page >= r.data.pages );
                 } else {
-                        $tbody.html( '<tr><td colspan="7" style="text-align:center;padding:20px;color:var(--bcs-smtp-text-3)">Error loading log.</td></tr>' );
+                        $tbody.html( '<tr><td colspan="5" class="bcs-smtp-table-empty">' + T( 'loadError' ) + '</td></tr>' );
                 }
-        } ).fail( function () {
-                $tbody.html( '<tr><td colspan="7" style="text-align:center;padding:20px;color:var(--bcs-smtp-text-3)">Request failed.</td></tr>' );
-        } );
-}
+        } ).fail( function ( xhr ) {
+                $tbody.removeAttr( 'aria-busy' ).html( '<tr><td colspan="5" class="bcs-smtp-table-empty">' + failText( xhr ) + '</td></tr>' );
+        } );
+}
+
+/* Full email view: size the preview to its content; switch between preview and HTML source */
+function fitMailFrame( frame ) {
+        try {
+                frame.contentDocument.documentElement.style.overflow = 'hidden'; // The frame grows to fit, so no inner scrollbar.
+                frame.style.height = '0px'; // Collapse first, or a short email reports the frame's own height.
+                frame.style.height = Math.max( 160, frame.contentDocument.documentElement.scrollHeight ) + 'px';
+        } catch ( e ) {} // Not readable: keep the default height.
+}
+$( '.bcs-smtp-mailframe' ).each( function () {
+        var frame = this;
+        frame.addEventListener( 'load', function () { fitMailFrame( frame ); } );
+        if ( frame.contentDocument && 'complete' === frame.contentDocument.readyState ) { fitMailFrame( frame ); }
+} );
+$( window ).on( 'resize', function () { $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } ); } );
+$( document ).on( 'change', 'input[name="bcs_smtp_mailview_mode"]', function () {
+        var mode = this.value;
+        $( '.bcs-smtp-mailview-message [data-mode]' ).each( function () {
+                $( this ).prop( 'hidden', $( this ).data( 'mode' ) !== mode );
+        } );
+        if ( 'preview' === mode ) { $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } ); }
+} );
+$( document ).on( 'change', 'input[name="bcs_smtp_mailview_device"]', function () {
+        $( '.bcs-smtp-mailframe-stage' ).toggleClass( 'is-mobile', 'mobile' === this.value );
+        $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } );
+} );
+
+$( document ).on( 'click', '.bcs-smtp-copy-btn', function () {
+        var $btn = $( this );
+        var text = $btn.closest( '.bcs-smtp-log-error, .bcs-smtp-mailview-source' ).find( 'pre' ).text();
+        var done = function () {
+                $btn.find( '.bcs-smtp-copy-label' ).text( T( 'copied' ) );
+                setTimeout( function () { $btn.find( '.bcs-smtp-copy-label' ).text( T( 'copy' ) ); }, 1600 );
+        };
+        if ( navigator.clipboard && window.isSecureContext ) {
+                navigator.clipboard.writeText( text ).then( done );
+        } else {
+                var ta = $( '<textarea readonly>' ).val( text ).css( { position: 'fixed', opacity: 0 } ).appendTo( 'body' );
+                ta[ 0 ].select();
+                document.execCommand( 'copy' );
+                ta.remove();
+                done();
+        }
+} );
 
 $( document ).on( 'input', '#bcs-smtp-log-search', function () {
         clearTimeout( emailLogSearchTmr );
-        emailLogSearchTmr = setTimeout( function () { loadEmailLog( 1 ); }, 400 );
+        emailLogSearchTmr = setTimeout( function () { loadEmailLog( 1 ); }, 350 );
 } );
 $( document ).on( 'keydown', '#bcs-smtp-log-search', function ( e ) {
@@ -214 +609 @@
         }
 } );
-$( document ).on( 'change', '#bcs-smtp-log-date-range, #bcs-smtp-log-status, #bcs-smtp-log-per-page', function () {
+$( document ).on( 'change', '.bcs-smtp-log-status-radio', function () {
+        $( '#bcs-smtp-log-status' ).val( $( this ).val() );
         loadEmailLog( 1 );
 } );
-$( document ).on( 'click', '#bcs-smtp-log-prev', function () {
-        if ( emailLogPage > 1 ) { loadEmailLog( emailLogPage - 1 ); }
-} );
-$( document ).on( 'click', '#bcs-smtp-log-next', function () {
-        loadEmailLog( emailLogPage + 1 );
-} );
-
+$( document ).on( 'change', '#bcs-smtp-log-date-range, #bcs-smtp-log-per-page', function () { loadEmailLog( 1 ); } );
+$( document ).on( 'click', '#bcs-smtp-log-prev', function () { if ( emailLogPage > 1 ) { loadEmailLog( emailLogPage - 1 ); } } );
+$( document ).on( 'click', '#bcs-smtp-log-next', function () { loadEmailLog( emailLogPage + 1 ); } );
+
+$( document ).on( 'click', '[data-export-log]', function () {
+        window.location.href = bcsSmtpData.exportUrl + '&nonce=' + encodeURIComponent( bcsSmtpData.exportNonce ) + '&date_range=30days&status=all&search=';
+} );
+
+$( document ).on( 'click', '#bcs-smtp-export-csv-btn', function ( e ) {
+        e.preventDefault();
+        window.location.href = bcsSmtpData.exportUrl
+                + '&nonce='      + encodeURIComponent( bcsSmtpData.exportNonce )
+                + '&date_range=' + encodeURIComponent( $( '#bcs-smtp-log-date-range' ).val() )
+                + '&status='     + encodeURIComponent( $( '#bcs-smtp-log-status' ).val() || 'all' )
+                + '&search='     + encodeURIComponent( $( '#bcs-smtp-log-search' ).val() );
+} );
 
 /* =====================================================================
-   EMAIL REPORT TAB
+   OVERVIEW — email activity line chart (dependency-free SVG)
    ===================================================================== */
-var emailReportLoaded = false;
-var reportChart       = null;
+var SVGNS = 'http://www.w3.org/2000/svg';
+
+function dayLabel( ymd, opts ) {
+        var m = /^(\d{4})-(\d{2})-(\d{2})$/.exec( ymd );
+        if ( ! m ) { return ymd; }
+        return new Date( +m[ 1 ], m[ 2 ] - 1, +m[ 3 ] ).toLocaleDateString( document.documentElement.lang || undefined, opts || { month: 'short', day: 'numeric' } );
+}
+
+/* A "nice" axis: 4 steps of 1, 2, 2.5 or 5 × 10^n, never below 1 per step. */
+function niceStep( max ) {
+        var raw = Math.max( 1, max / 4 );
+        var pow = Math.pow( 10, Math.floor( Math.log10( raw ) ) );
+        var n   = raw / pow;
+        var m   = n <= 1 ? 1 : n <= 2 ? 2 : n <= 2.5 ? 2.5 : n <= 5 ? 5 : 10;
+        return Math.max( 1, Math.ceil( m * pow ) );
+}
+
+/* Monotone cubic interpolation (Fritsch–Carlson) — smooth without overshooting below zero. */
+function smoothPath( pts ) {
+        var n = pts.length;
+        if ( n < 2 ) { return n ? 'M' + pts[ 0 ][ 0 ] + ',' + pts[ 0 ][ 1 ] : ''; }
+        var dx = [], dy = [], s = [], t = [];
+        for ( var i = 0; i < n - 1; i++ ) {
+                dx[ i ] = pts[ i + 1 ][ 0 ] - pts[ i ][ 0 ];
+                dy[ i ] = pts[ i + 1 ][ 1 ] - pts[ i ][ 1 ];
+                s[ i ]  = dy[ i ] / dx[ i ];
+        }
+        t[ 0 ] = s[ 0 ];
+        t[ n - 1 ] = s[ n - 2 ];
+        for ( i = 1; i < n - 1; i++ ) {
+                t[ i ] = ( s[ i - 1 ] * s[ i ] <= 0 ) ? 0 : 3 * ( dx[ i - 1 ] + dx[ i ] ) / ( ( 2 * dx[ i ] + dx[ i - 1 ] ) / s[ i - 1 ] + ( dx[ i ] + 2 * dx[ i - 1 ] ) / s[ i ] );
+        }
+        var d = 'M' + pts[ 0 ][ 0 ].toFixed( 1 ) + ',' + pts[ 0 ][ 1 ].toFixed( 1 );
+        for ( i = 0; i < n - 1; i++ ) {
+                var h = dx[ i ] / 3;
+                d += 'C' + ( pts[ i ][ 0 ] + h ).toFixed( 1 ) + ',' + ( pts[ i ][ 1 ] + h * t[ i ] ).toFixed( 1 ) + ' ' +
+                        ( pts[ i + 1 ][ 0 ] - h ).toFixed( 1 ) + ',' + ( pts[ i + 1 ][ 1 ] - h * t[ i + 1 ] ).toFixed( 1 ) + ' ' +
+                        pts[ i + 1 ][ 0 ].toFixed( 1 ) + ',' + pts[ i + 1 ][ 1 ].toFixed( 1 );
+        }
+        return d;
+}
+
+function svgEl( name, attrs, parent ) {
+        var el = document.createElementNS( SVGNS, name );
+        for ( var k in attrs ) { if ( attrs.hasOwnProperty( k ) ) { el.setAttribute( k, attrs[ k ] ); } }
+        if ( parent ) { parent.appendChild( el ); }
+        return el;
+}
+
+function LineChart( el ) {
+        this.el   = el;
+        this.tip  = el.querySelector( '.bcs-smtp-linechart-tip' );
+        this.idx  = -1;
+        this.data = null;
+        var self  = this;
+
+        el.addEventListener( 'mousemove', function ( e ) { self.pointAt( e.clientX ); } );
+        el.addEventListener( 'mouseleave', function () { self.hide(); } );
+        el.addEventListener( 'blur', function () { self.hide(); } );
+        el.addEventListener( 'keydown', function ( e ) {
+                if ( ! self.data ) { return; }
+                var n = self.data.labels.length;
+                if ( e.key === 'ArrowRight' || e.key === 'ArrowLeft' ) {
+                        e.preventDefault();
+                        var i = self.idx < 0 ? n - 1 : self.idx + ( e.key === 'ArrowRight' ? 1 : -1 );
+                        self.show( Math.max( 0, Math.min( n - 1, i ) ) );
+                } else if ( e.key === 'Escape' ) {
+                        self.hide();
+                }
+        } );
+        if ( window.ResizeObserver ) {
+                var lastW = 0;
+                new ResizeObserver( function () {
+                        var w = el.clientWidth;
+                        if ( self.data && w && Math.abs( w - lastW ) > 2 ) { lastW = w; self.render( self.data, true ); }
+                } ).observe( el );
+        }
+}
+
+/* Long ranges read better per week than as daily spikes. */
+function bucketWeekly( data ) {
+        if ( data.labels.length <= 45 ) { return data; }
+        var size = data.labels.length > 200 ? 14 : 7;
+        var out = { labels: [], success: [], failed: [], unconfirmed: [], weekly: true, span: size };
+        for ( var i = 0; i < data.labels.length; i += size ) {
+                out.labels.push( data.labels[ i ] );
+                [ 'success', 'failed', 'unconfirmed' ].forEach( function ( k ) {
+                        out[ k ].push( data[ k ].slice( i, i + size ).reduce( function ( a, b ) { return a + ( +b ); }, 0 ) );
+                } );
+        }
+        return out;
+}
+
+LineChart.prototype.render = function ( data, quiet ) {
+        data = bucketWeekly( data );
+        this.data = data;
+        this.idx  = -1;
+        var el = this.el;
+        var old = el.querySelector( 'svg' );
+        if ( old ) { el.removeChild( old ); }
+
+        var W = el.clientWidth, H = el.clientHeight;
+        if ( ! W || ! H ) { return; }
+        var pad = { l: 40, r: 12, t: 12, b: 28 };
+        var n   = data.labels.length;
+        var series = [ { key: 'success', cls: 'is-sent', color: 'var(--bcs-brand-ink)' } ];
+        if ( data.failed.some( function ( v ) { return v > 0; } ) ) { series.push( { key: 'failed', cls: 'is-failed', color: 'var(--bcs-bad)' } ); }
+        if ( data.unconfirmed.some( function ( v ) { return v > 0; } ) ) { series.push( { key: 'unconfirmed', cls: 'is-unconfirmed', color: 'var(--bcs-warn)' } ); }
+
+        var max = 0;
+        series.forEach( function ( s ) { data[ s.key ].forEach( function ( v ) { max = Math.max( max, v ); } ); } );
+        var step = niceStep( max ), top = step * 4;
+        var iw = W - pad.l - pad.r, ih = H - pad.t - pad.b;
+        var x = function ( i ) { return pad.l + ( n > 1 ? i * iw / ( n - 1 ) : iw / 2 ); };
+        var y = function ( v ) { return pad.t + ih - ( v / top ) * ih; };
+        this.geom = { x: x, y: y, pad: pad, iw: iw, n: n, series: series };
+
+        var svg = svgEl( 'svg', { viewBox: '0 0 ' + W + ' ' + H, 'aria-hidden': 'true', focusable: 'false' } );
+        if ( quiet ) { svg.setAttribute( 'class', 'is-quiet' ); }
+
+        var grid = svgEl( 'g', { 'class': 'bcs-smtp-lc-grid' }, svg );
+        for ( var g = 0; g <= 4; g++ ) {
+                var gy = y( step * g );
+                svgEl( 'line', { x1: pad.l, x2: W - pad.r, y1: gy, y2: gy, 'class': g === 0 ? 'is-base' : '' }, grid );
+                var lbl = svgEl( 'text', { x: pad.l - 10, y: gy + 4, 'text-anchor': 'end', 'class': 'bcs-smtp-lc-label' }, grid );
+                lbl.textContent = ( step * g ).toLocaleString();
+        }
+        var ticks = n > 1 ? [ 0, Math.round( ( n - 1 ) / 4 ), Math.round( ( n - 1 ) / 2 ), Math.round( 3 * ( n - 1 ) / 4 ), n - 1 ] : [ 0 ];
+        ticks.filter( function ( v, i, a ) { return a.indexOf( v ) === i; } ).forEach( function ( i, k, arr ) {
+                var anchor = k === 0 ? 'start' : ( k === arr.length - 1 ? 'end' : 'middle' );
+                var t = svgEl( 'text', { x: x( i ), y: H - 6, 'text-anchor': anchor, 'class': 'bcs-smtp-lc-label' }, grid );
+                t.textContent = dayLabel( data.labels[ i ] );
+        } );
+
+        // Area under "sent", then each line on top.
+        var sentPts = data.success.map( function ( v, i ) { return [ x( i ), y( v ) ]; } );
+        var line0 = smoothPath( sentPts );
+        if ( n > 1 ) {
+                svgEl( 'path', { d: line0 + 'L' + x( n - 1 ) + ',' + y( 0 ) + 'L' + x( 0 ) + ',' + y( 0 ) + 'Z', 'class': 'bcs-smtp-lc-area' }, svg );
+        }
+        var paths = [];
+        series.slice().reverse().forEach( function ( s ) {
+                var pts = data[ s.key ].map( function ( v, i ) { return [ x( i ), y( v ) ]; } );
+                paths.push( svgEl( 'path', { d: smoothPath( pts ), 'class': 'bcs-smtp-lc-line ' + s.cls }, svg ) );
+        } );
+
+        this.cursor = svgEl( 'line', { x1: 0, x2: 0, y1: pad.t, y2: pad.t + ih, 'class': 'bcs-smtp-lc-cursor' }, svg );
+        this.dots = series.map( function ( s ) { return svgEl( 'circle', { r: 4.5, cx: 0, cy: 0, fill: s.color, 'class': 'bcs-smtp-lc-dot' }, svg ); } );
+
+        el.insertBefore( svg, el.firstChild );
+        paths.forEach( function ( p ) {
+                var len = p.getTotalLength ? Math.ceil( p.getTotalLength() ) : 0;
+                p.style.setProperty( '--len', len );
+                if ( quiet ) { p.style.animation = 'none'; p.style.strokeDashoffset = 0; }
+        } );
+        this.hide();
+};
+
+LineChart.prototype.pointAt = function ( clientX ) {
+        if ( ! this.geom ) { return; }
+        var r = this.el.getBoundingClientRect();
+        var g = this.geom;
+        var i = g.n > 1 ? Math.round( ( clientX - r.left - g.pad.l ) / ( g.iw / ( g.n - 1 ) ) ) : 0;
+        this.show( Math.max( 0, Math.min( g.n - 1, i ) ) );
+};
+
+LineChart.prototype.show = function ( i ) {
+        var g = this.geom, d = this.data;
+        if ( ! g ) { return; }
+        this.idx = i;
+        var cx = g.x( i );
+        this.cursor.setAttribute( 'x1', cx );
+        this.cursor.setAttribute( 'x2', cx );
+        g.series.forEach( function ( s, k ) {
+                this.dots[ k ].setAttribute( 'cx', cx );
+                this.dots[ k ].setAttribute( 'cy', g.y( d[ s.key ][ i ] ) );
+        }, this );
+        this.el.classList.add( 'is-hover' );
+
+        var rows = [
+                [ 'sent', T( 'sent', 'Sent' ), d.success[ i ] ],
+                [ 'bad', T( 'failed', 'Failed' ), d.failed[ i ] ],
+                [ 'warn', T( 'unconfirmed', 'Unconfirmed' ), d.unconfirmed[ i ] ],
+        ];
+        var when = d.weekly ? fmt( d.span === 14 ? T( 'twoWeeksOf', '2 weeks from %s' ) : T( 'weekOf', 'Week of %s' ), dayLabel( d.labels[ i ] ) ) : dayLabel( d.labels[ i ], { weekday: 'short', month: 'short', day: 'numeric' } );
+        var html = '<strong>' + when + '</strong>';
+        rows.forEach( function ( r ) {
+                html += '<span><i class="bcs-smtp-key bcs-smtp-key--' + r[ 0 ] + '"></i>' + r[ 1 ] + '<b>' + Number( r[ 2 ] ).toLocaleString() + '</b></span>';
+        } );
+        this.tip.innerHTML = html;
+        this.tip.hidden = false;
+        var w = this.tip.offsetWidth, W = this.el.clientWidth;
+        this.tip.style.left = Math.max( w / 2, Math.min( W - w / 2, cx ) ) + 'px';
+};
+
+LineChart.prototype.hide = function () {
+        this.idx = -1;
+        this.el.classList.remove( 'is-hover' );
+        if ( this.tip ) { this.tip.hidden = true; }
+};
+
+var ovChart = null;
+
+function updateOverviewFigures( sum ) {
+        var nf = function ( v ) { return Number( v ).toLocaleString(); };
+        var $f = $( '#bcs-smtp-ov-figures' );
+        $f.find( '[data-fig="success"]' ).text( nf( sum.success ) );
+        $f.find( '[data-fig="failed"]' ).text( nf( sum.failed ) ).toggleClass( 'is-bad', sum.failed > 0 );
+        $f.find( '[data-fig="unconfirmed"]' ).text( nf( sum.unconfirmed ) );
+        $f.find( '[data-fig="rate"]' ).html( sum.total > 0
+                ? ( Math.round( sum.success / sum.total * 1000 ) / 10 ).toLocaleString() + '<small>%</small>'
+                : '—' );
+        $( '#bcs-smtp-ov-empty' ).prop( 'hidden', sum.total > 0 );
+}
+
+$( document ).on( 'change', '.bcs-smtp-ov-range', function () {
+        var range = $( this ).val();
+        $( '#bcs-smtp-ov-chart' ).attr( 'aria-busy', 'true' );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_get_email_report', nonce: bcsSmtpData.nonce, date_range: range }, function ( r ) {
+                $( '#bcs-smtp-ov-chart' ).removeAttr( 'aria-busy' );
+                if ( ! r || ! r.success ) { return; }
+                updateOverviewFigures( r.data.summary );
+                if ( ovChart ) { ovChart.render( r.data.chart ); }
+        } );
+} );
+
+function initOverviewChart() {
+        var el = document.getElementById( 'bcs-smtp-ov-chart' );
+        if ( ! el || ovChart ) { return; }
+        var data;
+        try { data = JSON.parse( el.getAttribute( 'data-chart' ) ); } catch ( e ) { return; }
+        ovChart = new LineChart( el );
+        ovChart.render( data, window.matchMedia && window.matchMedia( '(prefers-reduced-motion: reduce)' ).matches );
+}
+
+/* =====================================================================
+   REPORTS
+   ===================================================================== */
+var reportChart = null;
+var reportRange = '30days';
+
+/* Facts derived from the daily series: no extra queries needed. */
+var RANGE_DAYS = { '7days': 7, '30days': 30, '3months': 90 };
+
+function showRecipients( count ) {
+        var $dd = $( '#bcs-smtp-highlights [data-hl="recipients"]' );
+        if ( count === undefined || count === null || isNaN( count ) ) { $dd.text( '—' ); return; }
+        count = +count;
+        $dd.html( count.toLocaleString() + ' <small>' + ( 1 === count ? T( 'oneRecipient', 'recipient' ) : T( 'manyRecipients', 'recipients' ) ) + '</small>' )
+                .toggleClass( 'is-good', count > 0 );
+}
+
+function updateHighlights( raw ) {
+        var n = raw.labels.length;
+        // The series runs from the start date through today, so it holds one more calendar day
+        // than the range's name; describe the period by its nominal length.
+        var days = RANGE_DAYS[ reportRange ] || n;
+        var total = 0, peak = -1, peakIdx = -1;
+        for ( var i = 0; i < n; i++ ) {
+                var day = ( +raw.success[ i ] ) + ( +raw.failed[ i ] ) + ( +raw.unconfirmed[ i ] );
+                total  += day;
+                if ( day > peak ) { peak = day; peakIdx = i; }
+        }
+        var $h = $( '#bcs-smtp-highlights' );
+        var avg = days ? total / days : 0;
+        $h.find( '[data-hl="avg"]' ).text( ! days ? '—' : ( total > 0 && avg < 0.5 ? T( 'lessThanOne', 'Less than 1' ) : Math.round( avg ).toLocaleString() ) );
+        $h.find( '[data-hl="peak"]' ).html( peak > 0
+                ? dayLabel( raw.labels[ peakIdx ] ) + ' <small>' + fmt( T( 'emailsCount', '%s emails' ), peak.toLocaleString() ) + '</small>'
+                : '—' );
+        // Failure-free counts use exactly the period's days (the most recent ones, through today).
+        var start = Math.max( 0, n - days );
+        var clean = 0, run = 0, best = 0;
+        for ( var d = start; d < n; d++ ) {
+                if ( +raw.failed[ d ] > 0 ) {
+                        run = 0;
+                } else {
+                        clean++;
+                        run++;
+                        best = Math.max( best, run );
+                }
+        }
+        var daysText = function ( v ) { return v.toLocaleString() + ' <small>' + ( 1 === v ? T( 'oneDay', 'day' ) : T( 'manyDays', 'days' ) ) + '</small>'; };
+        $h.find( '[data-hl="cleandays"]' ).html( n ? clean.toLocaleString() + ' <small>' + fmt( T( 'ofDays', 'of %s days' ), Math.min( days, n - start ).toLocaleString() ) + '</small>' : '—' )
+                .toggleClass( 'is-good', clean > 0 );
+        $h.find( '[data-hl="beststreak"]' ).html( n ? daysText( best ) : '—' ).toggleClass( 'is-good', best > 0 );
+
+}
+
+function renderReport( sum, chart ) {
+        var nf = function ( v ) { return Number( v ).toLocaleString(); };
+        $( '#bcs-smtp-report-total' ).text( nf( sum.total ) );
+        $( '#bcs-smtp-report-success' ).text( nf( sum.success ) );
+        $( '#bcs-smtp-report-failed' ).text( nf( sum.failed ) ).toggleClass( 'is-bad', sum.failed > 0 );
+        $( '#bcs-smtp-report-unconfirmed' ).text( nf( sum.unconfirmed ) );
+        var rate = sum.total > 0 ? Math.round( sum.success / sum.total * 1000 ) / 10 : null;
+        $( '#bcs-smtp-report-rate' ).html( null === rate ? '—' : rate.toLocaleString() + '<small>%</small>' );
+        $( '#bcs-smtp-report-ratebar' ).css( 'width', ( rate || 0 ) + '%' );
+        $( '#bcs-smtp-chart-empty' ).prop( 'hidden', sum.total > 0 );
+        if ( reportChart ) { reportChart.render( chart ); }
+        updateHighlights( chart );
+        showRecipients( sum.recipients );
+}
 
 function loadEmailReport() {
+        var $chart = $( '#bcs-smtp-report-chart' ).attr( 'aria-busy', 'true' );
         $.post( bcsSmtpData.ajaxurl, {
                 action     : 'bcs_smtp_get_email_report',
                 nonce      : bcsSmtpData.nonce,
-                date_range : $( '#bcs-smtp-report-date-range' ).val(),
+                date_range : reportRange,
         }, function ( r ) {
-                if ( ! r || ! r.success ) { return; }
-                var d = r.data;
-
-                $( '#bcs-smtp-report-success' ).text( d.summary.success );
-                $( '#bcs-smtp-report-failed' ).text( d.summary.failed );
-                $( '#bcs-smtp-report-unconfirmed' ).text( d.summary.unconfirmed );
-                $( '#bcs-smtp-report-total' ).text( d.summary.total );
-
-                updateReportChart( d.chart );
-        } );
-}
-
-function updateReportChart( chartData ) {
-        var ctx = document.getElementById( 'bcs-smtp-report-chart' );
-        if ( ! ctx ) { return; }
-
-        // Filter out days where all values are 0 (no email activity).
-        var filteredLabels = [], filteredSuccess = [], filteredFailed = [], filteredUnconf = [];
-        for ( var fi = 0; fi < chartData.labels.length; fi++ ) {
-                if ( chartData.success[ fi ] > 0 || chartData.failed[ fi ] > 0 || chartData.unconfirmed[ fi ] > 0 ) {
-                        filteredLabels.push( chartData.labels[ fi ] );
-                        filteredSuccess.push( chartData.success[ fi ] );
-                        filteredFailed.push( chartData.failed[ fi ] );
-                        filteredUnconf.push( chartData.unconfirmed[ fi ] );
+                $chart.removeAttr( 'aria-busy' );
+                if ( r && r.success ) { renderReport( r.data.summary, r.data.chart ); }
+        } );
+}
+
+function initReportChart() {
+        var el = document.getElementById( 'bcs-smtp-report-chart' );
+        if ( ! el || reportChart ) { return; }
+        var data;
+        try { data = JSON.parse( el.getAttribute( 'data-chart' ) ); } catch ( e ) { return; }
+        reportChart = new LineChart( el );
+        reportChart.render( data, window.matchMedia && window.matchMedia( '(prefers-reduced-motion: reduce)' ).matches );
+        updateHighlights( data );
+        showRecipients( $( '#bcs-smtp-highlights [data-hl="recipients"]' ).data( 'initial' ) );
+}
+
+$( document ).on( 'change', '.bcs-smtp-rp-range', function () {
+        reportRange = $( this ).val();
+        $( '#bcs-smtp-report-period' ).text( fmt( T( 'lastPeriod', 'Last %s' ), $( this ).data( 'label' ) ) );
+        loadEmailReport();
+} );
+
+$( document ).on( 'click', '#bcs-smtp-report-export', function () {
+        window.location.href = bcsSmtpData.exportUrl + '&nonce=' + encodeURIComponent( bcsSmtpData.exportNonce ) + '&date_range=' + encodeURIComponent( reportRange ) + '&status=all&search=';
+} );
+
+/* Same rule as the server: comma-separated, every entry a valid address. */
+var EMAIL_RE = /^[^\s@,]+@[^\s@,]+\.[^\s@,]{2,}$/;
+
+/* =====================================================================
+   Recipient chips (Gmail-style) — the hidden #bcs-smtp-report-emails keeps the
+   comma-separated value the save handlers and validation read.
+   ===================================================================== */
+var $chipsWrap  = $( '#bcs-smtp-report-chips' );
+var $chipList   = $chipsWrap.find( '.bcs-smtp-chip-list' );
+var $chipEntry  = $( '#bcs-smtp-report-emails-entry' );
+var $chipHidden = $( '#bcs-smtp-report-emails' );
+var CHIP_PLACEHOLDER = $chipEntry.attr( 'placeholder' ) || '';
+
+function chipValues() {
+        return String( $chipHidden.val() || '' ).split( ',' ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+}
+
+function renderChips() {
+        $chipList.empty();
+        chipValues().forEach( function ( email, i ) {
+                var ok    = EMAIL_RE.test( email );
+                var $chip = $( '<li class="bcs-smtp-chip" />' ).toggleClass( 'is-invalid', ! ok ).attr( 'data-i', i );
+                $( '<span class="bcs-smtp-chip-text" />' ).text( email ).attr( 'title', ok ? email : T( 'notAnEmail', 'Not a valid email address' ) ).appendTo( $chip );
+                $( '<button type="button" class="bcs-smtp-chip-x" />' )
+                        .attr( 'aria-label', fmt( T( 'removeEmail', 'Remove %s' ), email ) )
+                        .html( '<span class="dashicons dashicons-no-alt" aria-hidden="true"></span>' )
+                        .appendTo( $chip );
+                $chipList.append( $chip );
+        } );
+        $chipEntry.attr( 'placeholder', chipValues().length ? '' : CHIP_PLACEHOLDER );
+}
+
+function setChipValues( list ) {
+        var seen = {};
+        list = list.filter( function ( v ) {
+                var k = v.toLowerCase();
+                if ( seen[ k ] ) { return false; }
+                seen[ k ] = true;
+                return true;
+        } );
+        $chipHidden.val( list.join( ', ' ) );
+        $chipsWrap.removeClass( 'is-invalid' );
+        renderChips();
+}
+
+/* Turn whatever is typed or pasted into chips. */
+function commitChipEntry() {
+        var raw = $chipEntry.val();
+        if ( ! $.trim( raw ) ) { return; }
+        var added = raw.split( /[\s,;]+/ ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+        $chipEntry.val( '' );
+        setChipValues( chipValues().concat( added ) );
+}
+
+$chipEntry.on( 'keydown', function ( e ) {
+        if ( e.key === 'Enter' || e.key === ',' || e.key === ';' || ( e.key === ' ' && $.trim( this.value ) ) || ( e.key === 'Tab' && $.trim( this.value ) ) ) {
+                e.preventDefault();
+                commitChipEntry();
+                return;
+        }
+        if ( e.key === 'Backspace' && ! this.value ) {
+                var $last = $chipList.children().last();
+                if ( ! $last.length ) { return; }
+                if ( $last.hasClass( 'is-armed' ) ) {
+                        var vals = chipValues();
+                        vals.pop();
+                        setChipValues( vals );
+                } else {
+                        $last.addClass( 'is-armed' );
                 }
-        }
-        // Fall back to full data if nothing has activity (avoids empty chart).
-        if ( filteredLabels.length === 0 ) {
-                filteredLabels  = chartData.labels;
-                filteredSuccess = chartData.success;
-                filteredFailed  = chartData.failed;
-                filteredUnconf  = chartData.unconfirmed;
-        }
-        chartData = { labels: filteredLabels, success: filteredSuccess, failed: filteredFailed, unconfirmed: filteredUnconf };
-
-        // Resolve colours based on active theme
-        var isDark    = document.documentElement.getAttribute( 'data-bcs-smtp-theme' ) === 'dark';
-        var gridColor = isDark ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.06)';
-        var textColor = isDark ? '#94a3b8' : '#64748b';
-
-        var datasets = [
-                {
-                        label           : 'Sent',
-                        data            : chartData.success,
-                        backgroundColor : 'rgba(16,185,129,0.75)',
-                        borderColor     : '#10b981',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-                {
-                        label           : 'Failed',
-                        data            : chartData.failed,
-                        backgroundColor : 'rgba(239,68,68,0.75)',
-                        borderColor     : '#ef4444',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-                {
-                        label           : 'Unconfirmed',
-                        data            : chartData.unconfirmed,
-                        backgroundColor : 'rgba(245,158,11,0.75)',
-                        borderColor     : '#f59e0b',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-        ];
-
-        if ( reportChart ) {
-                reportChart.data.labels   = chartData.labels;
-                reportChart.data.datasets = datasets;
-                reportChart.update();
                 return;
         }
-
-        reportChart = new Chart( ctx, {
-                type : 'bar',
-                data : {
-                        labels   : chartData.labels,
-                        datasets : datasets,
-                },
-                options : {
-                        responsive          : true,
-                        maintainAspectRatio : false,
-                        interaction         : { mode: 'index', intersect: false },
-                        plugins : {
-                                legend  : { labels : { color: textColor, font: { size: 12 } } },
-                                tooltip : { mode: 'index' },
-                        },
-                        scales : {
-                                x : {
-                                        stacked   : false,
-                                        grid      : { color: gridColor },
-                                        ticks     : { color: textColor, font: { size: 11 } },
-                                },
-                                y : {
-                                        stacked    : false,
-                                        beginAtZero: true,
-                                        grid       : { color: gridColor },
-                                        ticks      : { color: textColor, font: { size: 11 }, precision: 0 },
-                                },
-                        },
-                },
-        } );
-}
-
-$( document ).on( 'change', '#bcs-smtp-report-date-range', function () {
-        loadEmailReport();
-} );
-
-/* Accordion toggle */
-$( document ).on( 'click', '.bcs-smtp-accordion-header', function () {
-        var $header = $( this );
-        var $body   = $header.next( '.bcs-smtp-accordion-body' );
-        var open    = $body.is( ':visible' );
-        $body.slideToggle( 200 );
-        $header.attr( 'aria-expanded', open ? 'false' : 'true' );
-        $header.find( '.bcs-smtp-accordion-arrow' )
-                .toggleClass( 'dashicons-arrow-down-alt2', open )
-                .toggleClass( 'dashicons-arrow-up-alt2', ! open );
-} );
-
-/* Save schedule */
+        $chipList.children().removeClass( 'is-armed' );
+} );
+$chipEntry.on( 'paste', function () { setTimeout( commitChipEntry, 0 ); } );
+$chipEntry.on( 'blur', commitChipEntry );
+$chipEntry.on( 'input', function () { $chipsWrap.removeClass( 'is-invalid' ); } );
+
+$chipList.on( 'click', '.bcs-smtp-chip-x', function () {
+        var i    = +$( this ).closest( '.bcs-smtp-chip' ).attr( 'data-i' );
+        var vals = chipValues();
+        vals.splice( i, 1 );
+        setChipValues( vals );
+        $chipEntry.trigger( 'focus' );
+} );
+$chipsWrap.on( 'click', function ( e ) {
+        if ( e.target === this || $( e.target ).is( '.bcs-smtp-chip-list' ) ) { $chipEntry.trigger( 'focus' ); }
+} );
+
+
+function checkReportEmails( required ) {
+        commitChipEntry();
+        var $f    = $( '#bcs-smtp-report-emails' );
+        var parts = $f.val().split( ',' ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+        var bad   = parts.filter( function ( v ) { return ! EMAIL_RE.test( v ); } );
+        var msg   = '';
+        if ( bad.length ) {
+                msg = fmt( T( 'badEmails', 'These aren’t valid email addresses: %s' ), $( '<span>' ).text( bad.join( ', ' ) ).html() );
+        } else if ( required && ! parts.length ) {
+                msg = T( 'needEmail', 'Enter at least one email address to send the report to.' );
+        }
+        $chipsWrap.toggleClass( 'is-invalid', !! msg );
+        $chipEntry.attr( 'aria-invalid', msg ? 'true' : null );
+        if ( msg ) {
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', msg );
+                $chipEntry.trigger( 'focus' );
+        }
+        return ! msg;
+}
+
+
+$( document ).on( 'change', '#bcs-smtp-report-schedule-enabled', function () {
+        $( '#bcs-smtp-report-body, #bcs-smtp-send-report-now-btn' ).prop( 'hidden', ! this.checked );
+        $( '#bcs-smtp-report-off' ).prop( 'hidden', this.checked );
+} );
+
 $( document ).on( 'click', '#bcs-smtp-save-report-schedule-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-saved"></span>Save Schedule';
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
+        var $btn = $( this );
+        if ( ! checkReportEmails( $( '#bcs-smtp-report-schedule-enabled' ).is( ':checked' ) ) ) { return; }
+        setBusy( $btn, T( 'saving' ) );
         $.post( bcsSmtpData.ajaxurl, {
                 action    : 'bcs_smtp_save_report_schedule',
@@ -368 +1094 @@
                 enabled   : $( '#bcs-smtp-report-schedule-enabled' ).is( ':checked' ) ? 1 : 0,
                 emails    : $( '#bcs-smtp-report-emails' ).val(),
-                frequency : $( '#bcs-smtp-report-frequency' ).val(),
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
+                clearBusy( $btn );
                 if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || 'Schedule saved.' );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || T( 'saved' ) );
+                        $( '#bcs-smtp-report-next-text' ).text( r.data.next || '' );
+                        if ( r.data.emails !== undefined ) { $chipHidden.val( r.data.emails ); renderChips(); }
+                        $( '#bcs-smtp-report-next' ).prop( 'hidden', ! r.data.next );
                 } else {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-/* Send report now — date_range is derived server-side from saved frequency */
-$( document ).on( 'click', '#bcs-smtp-send-report-now-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-email-alt"></span>Send Report Now';
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-        $.post( bcsSmtpData.ajaxurl, {
-                action  : 'bcs_smtp_send_report_now',
-                nonce   : bcsSmtpData.nonce,
-                emails  : $( '#bcs-smtp-report-emails' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || 'Report sent.' );
-                } else {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', ( r && r.data ) ? r.data : 'Send failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-/* =====================================================================
-   SEND TEST EMAIL TAB
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-send-test-btn', function () {
-        var $btn = $( this );
-        var to   = $( '#bcs-smtp-test-to' ).val().trim();
-        if ( ! to ) {
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Please enter a recipient email address.' );
-                return;
-        }
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_send_test',
-                nonce  : bcsSmtpData.nonce,
-                to     : to,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-email-alt"></span> Send Test Email' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-test-msg', 'success', r.data.message );
-                } else {
-                        var msg = ( r && r.data )
-                                ? ( r.data.failure_type ? '<strong>' + r.data.failure_type + ':</strong> ' + r.data.message : r.data.message )
-                                : 'Test failed.';
-                        showInlineMsg( '#bcs-smtp-test-msg', 'error', msg );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-email-alt"></span> Send Test Email' );
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-$( document ).on( 'click', '#bcs-smtp-check-now-btn', function () {
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', failText( xhr ) );
+        } );
+} );
+
+/* Send report now — date_range is derived server-side from the saved frequency */
+$( document ).on( 'click', '#bcs-smtp-send-report-now-btn', function () {
         var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Running…' );
-
+        if ( ! checkReportEmails( true ) ) { return; }
+        setBusy( $btn, T( 'sending' ) );
         $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_check_now',
+                action : 'bcs_smtp_send_report_now',
                 nonce  : bcsSmtpData.nonce,
+                emails : $( '#bcs-smtp-report-emails' ).val(),
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-update"></span> Run Health Check Now' );
+                clearBusy( $btn );
                 if ( r && r.success ) {
-                        var type = r.data.success ? 'success' : 'error';
-                        showInlineMsg( '#bcs-smtp-test-msg', type, r.data.message );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message );
+                } else {
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-update"></span> Run Health Check Now' );
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', failText( xhr ) );
         } );
 } );
 
 /* =====================================================================
-   ALERTS TAB: toggles + channel
+   ALERTS
    ===================================================================== */
-
-/* Monitor toggle → accordion */
-$( document ).on( 'change', '#bcs-smtp-monitor-enabled', function () {
-        $( '#bcs-smtp-monitor-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Alert channel toggle → accordion */
 $( document ).on( 'change', '#bcs-smtp-alert-channel-enabled', function () {
         $( '#bcs-smtp-alert-channel-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Channel radio → show only the matching webhook field, preserve both values */
+        $( '#bcs-smtp-alerts-off' ).prop( 'hidden', this.checked );
+} );
+
+/* Channel list: each channel has its own switch; its webhook field opens under its row.
+   One row is open at a time. Every URL is kept and saved, even for channels that are off. */
+var WEBHOOK_ROWS  = { slack: 'slack', teams: 'teams', google_chat: 'google-chat', discord: 'discord', custom: 'custom' };
+var activeWebhook = null;
+
+function webhookInput( key ) {
+        return $( '#bcs-smtp-' + WEBHOOK_ROWS[ key ] + '-webhook-url' );
+}
+
+function channelState( box ) {
+        if ( ! box.checked ) { return 'off'; }
+        var url = $.trim( webhookInput( box.value ).val() );
+        return ! url ? 'missing' : ( webhookProblem( box.value, url ) ? 'bad' : 'ready' );
+}
+
 function syncWebhookFields() {
-        var ch = $( '.bcs-smtp-channel-radio:checked' ).val();
-        $( '#bcs-smtp-slack-webhook-row' ).toggle( ch === 'slack' );
-        $( '#bcs-smtp-teams-webhook-row' ).toggle( ch === 'teams' );
-        $( '#bcs-smtp-google-chat-webhook-row' ).toggle( ch === 'google_chat' );
-        $( '#bcs-smtp-discord-webhook-row' ).toggle( ch === 'discord' );
-        $( '#bcs-smtp-custom-webhook-row' ).toggle( ch === 'custom' );
-}
-$( document ).on( 'change', '.bcs-smtp-channel-radio', syncWebhookFields );
-
-
-/* Save monitor settings */
-$( document ).on( 'click', '#bcs-smtp-save-monitor-btn', function () {
-        var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action            : 'bcs_smtp_save_monitor',
-                nonce             : bcsSmtpData.nonce,
-                monitor_enabled   : $( '#bcs-smtp-monitor-enabled' ).is( ':checked' ) ? 1 : 0,
-                check_interval    : $( '#bcs-smtp-check-interval' ).val(),
-                failure_threshold : $( '#bcs-smtp-failure-threshold' ).val(),
-                max_alert_count   : $( '#bcs-smtp-max-alert-count' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Monitor Settings' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-monitor-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-monitor-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Monitor Settings' );
-                showInlineMsg( '#bcs-smtp-monitor-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-/* Save alert channel settings */
-$( document ).on( 'click', '#bcs-smtp-save-alerts-btn', function () {
-        var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action               : 'bcs_smtp_save_alerts',
-                nonce                : bcsSmtpData.nonce,
-                alert_channel_enabled: $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ? 1 : 0,
-                alert_channel        : $( '.bcs-smtp-channel-radio:checked' ).val(),
-                slack_webhook_url    : $( '#bcs-smtp-slack-webhook-url' ).val(),
-                teams_webhook_url    : $( '#bcs-smtp-teams-webhook-url' ).val(),
-                google_chat_webhook_url: $( '#bcs-smtp-google-chat-webhook-url' ).val(),
-                discord_webhook_url  : $( '#bcs-smtp-discord-webhook-url' ).val(),
-                custom_webhook_url   : $( '#bcs-smtp-custom-webhook-url' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Alert Settings' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Alert Settings' );
-                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-/* Send test alert */
+        var $boxes = $( '.bcs-smtp-channel-radio' );
+        // An open row stays open only while its channel is on.
+        if ( activeWebhook && ! $boxes.filter( '[value="' + activeWebhook + '"]' ).is( ':checked' ) ) {
+                activeWebhook = null;
+        }
+        var on = 0;
+        $boxes.each( function () {
+                var state = channelState( this );
+                var open  = this.value === activeWebhook;
+                var $row  = $( this ).closest( '.bcs-smtp-ch' );
+                on += this.checked ? 1 : 0;
+                $row.attr( 'data-state', state ).toggleClass( 'is-open', open );
+                $row.find( '.bcs-smtp-ch-main' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+                $row.find( '.bcs-smtp-ch-pill' ).text( { ready: T( 'chReady' ), missing: T( 'chAddUrl' ), bad: T( 'chCheckUrl' ), off: T( 'chOff' ) }[ state ] );
+                $( '#bcs-smtp-' + WEBHOOK_ROWS[ this.value ] + '-webhook-row' ).prop( 'hidden', ! open );
+        } );
+        $( '#bcs-smtp-ch-count' ).text( fmt( T( 'chCount' ), on, $boxes.length ) );
+}
+
+/* Same host rules the server enforces, so a wrong paste is caught before saving */
+var WEBHOOK_HOSTS = {
+        slack       : /^hooks\.slack\.com$/,
+        teams       : /(^|\.)(office\.com|logic\.azure\.com|api\.powerplatform\.com)$/,
+        google_chat : /^chat\.googleapis\.com$/,
+        discord     : /(^|\.)discord(app)?\.com$/
+};
+
+function webhookProblem( key, url ) {
+        var u;
+        try { u = new URL( url ); } catch ( e ) { return T( 'urlHttps' ); }
+        if ( 'https:' !== u.protocol ) { return T( 'urlHttps' ); }
+        var host = u.hostname.toLowerCase();
+        if ( 'custom' === key ) {
+                return ( 'localhost' === host || /^[\d.]+$/.test( host ) || -1 !== host.indexOf( ':' ) || '[' === host.charAt( 0 ) ) ? T( 'urlPublic' ) : '';
+        }
+        return WEBHOOK_HOSTS[ key ].test( host ) ? '' : fmt( T( 'urlHost' ), $( '.bcs-smtp-channel-radio[value="' + key + '"]' ).data( 'label' ) );
+}
+
+/* Show a field's problem; live once shown, so it clears the moment the URL is fixed */
+function checkWebhookField( input, force ) {
+        var $row = $( input ).closest( '.bcs-smtp-webhook' );
+        var $err = $row.find( '.bcs-smtp-webhook-err' );
+        if ( ! force && $err.prop( 'hidden' ) ) { return; }
+        var url  = $.trim( input.value );
+        var msg  = url ? webhookProblem( $row.data( 'channel' ), url ) : '';
+        $err.text( msg ).prop( 'hidden', ! msg );
+        $( input ).attr( 'aria-invalid', msg ? 'true' : null );
+}
+$( document ).on( 'blur', '.bcs-smtp-webhook input', function () { checkWebhookField( this, true ); } );
+$( document ).on( 'input', '.bcs-smtp-webhook input', function () { checkWebhookField( this, false ); } );
+
+/* Unsaved changes: the test alert uses saved settings, so it waits for a save */
+function setAlertsDirty( dirty ) {
+        var live = $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) && $( '.bcs-smtp-channel-radio:checked' ).length > 0;
+        $( '#bcs-smtp-alerts-unsaved' ).prop( 'hidden', ! dirty );
+        $( '#bcs-smtp-test-alert-btn' ).prop( 'disabled', dirty || ! live ).attr( 'title', dirty ? T( 'saveFirst' ) : null );
+}
+$( document ).on( 'change input', '.bcs-smtp-alerts-card input', function () { setAlertsDirty( true ); } );
+
+/* Edits live only in the page until saved, so warn before leaving with unsaved changes */
+$( window ).on( 'beforeunload', function ( e ) {
+        if ( $( '.bcs-smtp-unsaved' ).filter( function () { return ! this.hidden; } ).length ) {
+                e.preventDefault();
+                return '';
+        }
+} );
+
+function showWebhook( key, focus ) {
+        activeWebhook = key;
+        syncWebhookFields();
+        if ( focus ) { webhookInput( key ).trigger( 'focus' ); }
+}
+
+/* The row itself: a channel that's off is switched on; one that's on opens or closes its field */
+$( document ).on( 'click', '.bcs-smtp-ch-main', function () {
+        var box = $( this ).closest( '.bcs-smtp-ch' ).find( '.bcs-smtp-channel-radio' )[ 0 ];
+        if ( ! box.checked ) {
+                box.checked = true;
+                $( box ).trigger( 'change' );
+                setAlertsDirty( true );
+                return;
+        }
+        if ( activeWebhook === box.value ) {
+                activeWebhook = null;
+                syncWebhookFields();
+        } else {
+                showWebhook( box.value, false );
+        }
+} );
+
+/* Typing a URL updates its row's status straight away */
+$( document ).on( 'input', '.bcs-smtp-webhook input', syncWebhookFields );
+
+$( document ).on( 'change', '.bcs-smtp-channel-radio', function () {
+        if ( this.checked ) {
+                showWebhook( this.value, ! $.trim( webhookInput( this.value ).val() ) );
+        } else {
+                syncWebhookFields();
+        }
+} );
+
+function simpleSave( btnSel, msgSel, data, onSaved ) {
+        $( document ).on( 'click', btnSel, function () {
+                var $btn = $( this );
+                setBusy( $btn, T( 'saving' ) );
+                $.post( bcsSmtpData.ajaxurl, $.extend( { nonce: bcsSmtpData.nonce }, data() ) )
+                        .done( function ( r ) {
+                                if ( r && r.success ) {
+                                        showInlineMsg( msgSel, 'success', ( r.data && r.data.message ) || T( 'saved' ) );
+                                        if ( onSaved ) { onSaved( r ); }
+                                } else {
+                                        showInlineMsg( msgSel, 'error', errorText( r, T( 'saveFailed' ) ) );
+                                }
+                        } )
+                        .fail( function ( xhr ) { showInlineMsg( msgSel, 'error', failText( xhr ) ); } )
+                        .always( function () { clearBusy( $btn ); } );
+        } );
+}
+
+simpleSave( '#bcs-smtp-save-alerts-btn', '#bcs-smtp-alerts-msg', function () {
+        if ( $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ) {
+                $( '.bcs-smtp-channel-radio:checked' ).each( function () {
+                        var url = $.trim( webhookInput( this.value ).val() );
+                        if ( ! url || webhookProblem( this.value, url ) ) {
+                                showWebhook( this.value, true );
+                                checkWebhookField( webhookInput( this.value )[0], true );
+                                return false;
+                        }
+                } );
+        }
+        return {
+                action                  : 'bcs_smtp_save_alerts',
+                alert_channel_enabled   : $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ? 1 : 0,
+                alert_channels          : $( '.bcs-smtp-channel-radio:checked' ).map( function () { return this.value; } ).get(),
+                slack_webhook_url       : $( '#bcs-smtp-slack-webhook-url' ).val(),
+                teams_webhook_url       : $( '#bcs-smtp-teams-webhook-url' ).val(),
+                google_chat_webhook_url : $( '#bcs-smtp-google-chat-webhook-url' ).val(),
+                discord_webhook_url     : $( '#bcs-smtp-discord-webhook-url' ).val(),
+                custom_webhook_url      : $( '#bcs-smtp-custom-webhook-url' ).val(),
+        };
+}, function () { setAlertsDirty( false ); } );
+
 $( document ).on( 'click', '#bcs-smtp-test-alert-btn', function () {
         var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_send_test_alert',
-                nonce  : bcsSmtpData.nonce,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-megaphone"></span> Send Test Alert' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'error', ( r && r.data ) ? r.data : 'Alert dispatch failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-megaphone"></span> Send Test Alert' );
-                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
+        setBusy( $btn, T( 'sending' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_send_test_alert', nonce: bcsSmtpData.nonce } )
+                .done( function ( r ) {
+                        if ( r && r.success ) {
+                                showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
+                        } else {
+                                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
+                        }
+                } )
+                .fail( function ( xhr ) { showInlineMsg( '#bcs-smtp-alerts-msg', 'error', failText( xhr ) ); } )
+                .always( function () { clearBusy( $btn ); } );
 } );
 
 /* =====================================================================
-   SETTINGS TAB: Change Password button
+   SETTINGS
    ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-change-pw-btn', function () {
-        $( '#bcs-smtp-pw-display' ).hide();
-        $( '#bcs-smtp-pw-cancel-row' ).show();
-        $( '#bcs-smtp-pw-input' ).show();
-        $( '#bcs-smtp-smtp-password' ).val( '' ).focus();
-        $( '#bcs-smtp-pw-status' )
-                .text( 'Enter a new password — leave blank to keep the existing one.' )
-                .css( 'color', 'var(--bcs-smtp-text-3)' );
-} );
-
-$( document ).on( 'click', '#bcs-smtp-cancel-pw-btn', function ( e ) {
-        e.preventDefault();
-        $( '#bcs-smtp-pw-input' ).hide();
-        $( '#bcs-smtp-pw-cancel-row' ).hide();
-        $( '#bcs-smtp-pw-display' ).css( 'display', 'flex' );
-        $( '#bcs-smtp-smtp-password' ).val( '' );
-        $( '#bcs-smtp-pw-status' )
-                .text( '✓ Password saved — leave blank to keep it.' )
-                .css( 'color', 'var(--bcs-smtp-emerald)' );
-} );
-
-/* Show/hide the typed password */
-$( document ).on( 'click', '#bcs-smtp-toggle-pw-btn', function () {
-        var $btn   = $( this );
-        var $input = $( '#bcs-smtp-smtp-password' );
-        var $icon  = $btn.find( '.dashicons' );
-        var hidden = $input.attr( 'type' ) === 'password';
-
-        $input.attr( 'type', hidden ? 'text' : 'password' );
-        $icon.toggleClass( 'dashicons-visibility', ! hidden ).toggleClass( 'dashicons-hidden', hidden );
-        $btn.attr( 'aria-label', hidden ? 'Hide password' : 'Show password' );
-} );
-
-/* =====================================================================
-   RESEND FAILED EMAIL (Email Log tab)
-   ===================================================================== */
-$( document ).on( 'click', '.bcs-smtp-resend-btn', function () {
-        var $btn   = $( this );
-        var logId  = $btn.data( 'log-id' );
-        var orig   = $btn.html();
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Resending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action: 'bcs_smtp_resend_email',
-                nonce : bcsSmtpData.nonce,
-                log_id: logId,
-        } ).done( function ( r ) {
-                if ( r && r.success ) {
-                        // Remove the button in place rather than reloading the table — the original
-                        // row's status stays 'failed' (the resend created a separate log entry), so a
-                        // full reload would just show the same Resend button again.
-                        $btn.replaceWith( '<span class="bcs-smtp-badge bcs-smtp-badge-success">' +
-                                '<span class="dashicons dashicons-yes"></span> Resent</span>' );
-                } else {
-                        $btn.prop( 'disabled', false ).html( orig );
-                        window.alert( ( r && r.data ) ? r.data : 'Resend failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( orig );
-                window.alert( 'Request failed.' );
-        } );
-} );
-
-/* =====================================================================
-   RESEND SETTINGS (Config tab)
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-save-resend-btn', function () {
-        var $btn = $( this );
-        var orig = $btn.html();
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-        $.post( bcsSmtpData.ajaxurl, {
-                action            : 'bcs_smtp_save_resend_settings',
-                nonce             : bcsSmtpData.nonce,
-                store_failed_body : $( '#bcs-smtp-store-failed-body' ).is( ':checked' ) ? 1 : 0,
-                retention_days    : $( '#bcs-smtp-failed-body-retention' ).val(),
-        } ).done( function ( r ) {
-                showInlineMsg( '#bcs-smtp-resend-settings-msg', r && r.success ? 'success' : 'error', ( r && r.data && r.data.message ) ? r.data.message : ( ( r && r.data ) ? r.data : 'Save failed.' ) );
-        } ).fail( function () {
-                showInlineMsg( '#bcs-smtp-resend-settings-msg', 'error', 'Request failed.' );
-        } ).always( function () {
-                $btn.prop( 'disabled', false ).html( orig );
-        } );
-} );
-
-/* =====================================================================
-   Inline message helper
-   ===================================================================== */
-function showInlineMsg( selector, type, msg ) {
-        var icons = { success: 'yes-alt', error: 'dismiss', warning: 'warning', info: 'info-outline' };
-        var $el   = $( selector );
-        $el.css( { display: 'block', width: '100%' } ).html(
-                '<div class="bcs-smtp-alert bcs-smtp-alert-' + type + '" style="margin-top:0;width:100%;">' +
-                '<span class="dashicons dashicons-' + icons[ type ] + '"></span>' +
-                '<div class="bcs-smtp-alert-content">' + msg + '</div></div>'
-        );
-        setTimeout( function () {
-                $el.fadeOut( 400, function () { $el.empty().show().css( 'display', 'none' ); } );
-        }, 5000 );
-}
-
-
-/* =====================================================================
-   EMAIL LOG — Export CSV
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-export-csv-btn', function ( e ) {
-        e.preventDefault();
-        var url = bcsSmtpData.exportUrl
-                + '&nonce='      + encodeURIComponent( bcsSmtpData.exportNonce )
-                + '&date_range=' + encodeURIComponent( $( '#bcs-smtp-log-date-range' ).val() )
-                + '&status='     + encodeURIComponent( $( '#bcs-smtp-log-status' ).val() )
-                + '&search='     + encodeURIComponent( $( '#bcs-smtp-log-search' ).val() );
-        window.location.href = url;
-} );
-
-/* =====================================================================
-   EMAIL LOG — Log Retention / Auto-prune
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-save-log-prune-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-saved"></span>Save Retention Settings';
-        var mode    = $( '.bcs-smtp-prune-radio:checked' ).val();
-        var value   = mode === 'days'    ? $( '#bcs-smtp-prune-days' ).val()
-                    : mode === 'records' ? $( '#bcs-smtp-prune-records' ).val()
-                    : 30;
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action      : 'bcs_smtp_save_log_prune',
-                nonce       : bcsSmtpData.nonce,
-                prune_mode  : mode,
-                prune_value : value,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-log-prune-msg', 'success', r.data.message || 'Saved.' );
-                } else {
-                        showInlineMsg( '#bcs-smtp-log-prune-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-log-prune-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-
 /* =====================================================================
    Init
    ===================================================================== */
 $( function () {
+        // Browsers restore form state on reload, which can show a switch or field that no longer
+        // matches what is saved. Put every control back to the value the server rendered.
+        $( '.bcs-smtp-wrap' ).find( 'input, select, textarea' ).each( function () {
+                if ( this.type === 'checkbox' || this.type === 'radio' ) {
+                        this.checked = this.defaultChecked;
+                } else if ( this.tagName === 'SELECT' ) {
+                        var def = $( this ).find( 'option' ).filter( function () { return this.defaultSelected; } );
+                        this.selectedIndex = def.length ? def.index() : 0;
+                } else if ( this.type !== 'hidden' && this.type !== 'password' ) {
+                        this.value = this.defaultValue;
+                }
+        } );
         syncWebhookFields();
-
-        // Load the active panel's data if it's a data panel
-        var activePanel = getStoredTab();
-        if ( activePanel === 'email-log' ) {
-                emailLogLoaded = true;
-                loadEmailLog();
-        }
-        if ( activePanel === 'email-report' ) {
-                emailReportLoaded = true;
-                loadEmailReport();
+        updateServerSummary();
+        renderChips();
+        syncConnectionDot();
+        syncPickedProvider();
+        // The single-email page has no tabs; leave the remembered tab and its URL alone there.
+        if ( $( '.bcs-smtp-tab' ).length ) {
+                var hash   = ( window.location.hash || '' ).replace( '#', '' );
+                var stored = store.get( TAB_KEY );
+                setActiveTab( hash && $( '.bcs-smtp-tab[data-panel="' + hash + '"]' ).length ? hash : ( stored || 'overview' ) );
         }
 } );

bcs-smtp-manager/tags/1.3.0/bcs-smtp-manager.php

@@ -4 +4 @@
  * Plugin URI: https://bytecorestack.com/plugins/smtp-manager/
  * Description: Send WordPress email through any authenticated SMTP server, log every message, and get an alert on Slack, Microsoft Teams, Google Chat, or Discord the moment delivery fails.
- * Version: 1.2.1
+ * Version: 1.3.0
  * Author: ByteCore Stack
  * Author URI: https://bytecorestack.com/
@@ -21 +21 @@
 
 // Define plugin constants
-define( 'BCS_SMTP_VERSION',         '1.2.1' );
+define( 'BCS_SMTP_VERSION',         '1.3.0' );
 define( 'BCS_SMTP_PLUGIN_DIR',      plugin_dir_path( __FILE__ ) );
 define( 'BCS_SMTP_PLUGIN_URL',      plugin_dir_url( __FILE__ ) );
 define( 'BCS_SMTP_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
 
-// Monitor/alert option names — defined once so the read side and write side can
-// never drift apart (a literal-string mismatch caused the monitor toggle to silently
-// no-op in 1.1.0; see class-bcs-smtp-monitor.php).
-define( 'BCS_SMTP_OPT_MONITOR_ENABLED',       'bcs_monitor_enabled' );
-define( 'BCS_SMTP_OPT_CHECK_INTERVAL',        'bcs_check_interval' );
-define( 'BCS_SMTP_OPT_FAILURE_THRESHOLD',     'bcs_failure_threshold' );
+// Monitor/alert option names — defined once so the read side and write side can never drift apart.
 define( 'BCS_SMTP_OPT_CONSECUTIVE_FAILURES',  'bcs_consecutive_failures' );
 define( 'BCS_SMTP_OPT_LAST_CHECK',            'bcs_last_check' );
@@ -42 +37 @@
 define( 'BCS_SMTP_OPT_DISCORD_WEBHOOK_URL',     'bcs_discord_webhook_url' );
 define( 'BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL',      'bcs_custom_webhook_url' );
-define( 'BCS_SMTP_OPT_MAX_ALERT_COUNT',       'bcs_max_alert_count' );
 define( 'BCS_SMTP_OPT_ALERT_SENT_COUNT',      'bcs_alert_sent_count' );
 
-// Resend feature — failed-email body storage is opt-in and retained only briefly.
-define( 'BCS_SMTP_OPT_STORE_FAILED_BODY',           'bcs_store_failed_body' );
-define( 'BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS',  'bcs_failed_body_retention_days' );
+// The email log keeps this many days; reports and charts are limited to the same window.
+define( 'BCS_SMTP_LOG_RETENTION_DAYS', 90 );
+
+// Bumped whenever the log table's columns change, so dbDelta runs again on existing sites.
+define( 'BCS_SMTP_DB_VERSION', '1.3.0.1' );
+
+// Health checks are always on once SMTP is set up, with a fixed policy.
+define( 'BCS_SMTP_CHECK_INTERVAL_MINUTES', 15 ); // Minutes between checks.
+define( 'BCS_SMTP_FAILURE_THRESHOLD', 1 );       // Alert on the first failed check.
+define( 'BCS_SMTP_MAX_ALERTS_PER_OUTAGE', 1 );   // One alert until mail recovers.
+
+// Random secret the SMTP password is encrypted with (see BCS_SMTP_Mailer::get_crypto_key()).
+define( 'BCS_SMTP_OPT_CRYPTO_KEY', 'bcs_smtp_crypto_key' );
 
 // Load required files
@@ -62 +66 @@
 }
 
-// Settings link on the Plugins page.
-if ( ! function_exists( 'bcs_smtp_plugin_action_links' ) ) {
-        function bcs_smtp_plugin_action_links( $links ) {
-                $settings = '<a href="' . esc_url( admin_url( 'options-general.php?page=bcs-smtp-manager' ) ) . '">' . __( 'Settings', 'bcs-smtp-manager' ) . '</a>';
-                array_unshift( $links, $settings );
-                return $links;
-        }
-        add_filter( 'plugin_action_links_' . BCS_SMTP_PLUGIN_BASENAME, 'bcs_smtp_plugin_action_links' );
-}
-
-if ( ! function_exists( 'bcs_smtp_init' ) ) {
-        /**
-         * Initialize the plugin.
-         */
-        function bcs_smtp_init() {
-                $plugin = new BCS_SMTP_Core();
-                $plugin->run();
-        }
-        add_action( 'plugins_loaded', 'bcs_smtp_init' );
-}
-
-if ( ! function_exists( 'bcs_smtp_activate' ) ) {
-        /**
-         * Activation hook — creates tables and sets default options.
-         *
-         * @since 1.0
-         */
-        function bcs_smtp_activate() {
-                $db = new BCS_SMTP_DB();
-                $db->create_tables();
-
-                // SMTP connection settings
-                add_option( 'bcs_smtp_enabled',           false );
-                add_option( 'bcs_from_email',             get_option( 'admin_email' ) );
-                add_option( 'bcs_from_name',              get_option( 'blogname' ) );
-                add_option( 'bcs_smtp_host',              '' );
-                add_option( 'bcs_smtp_encryption',        'tls' );
-                add_option( 'bcs_smtp_port',              587 );
-                add_option( 'bcs_auto_tls',               true );
-                add_option( 'bcs_smtp_auth',              true );
-                add_option( 'bcs_smtp_username',          '' );
-                add_option( 'bcs_smtp_password',          '' );
-
-                // Monitoring settings
-                add_option( BCS_SMTP_OPT_MONITOR_ENABLED,      false );
-                add_option( BCS_SMTP_OPT_CHECK_INTERVAL,       5 );
-                add_option( BCS_SMTP_OPT_FAILURE_THRESHOLD,    2 );
-                add_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
-                add_option( BCS_SMTP_OPT_LAST_CHECK,           0 );
-                add_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS,   null );
-
-                // Alert channel settings
-                add_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
-                add_option( BCS_SMTP_OPT_ALERT_CHANNEL,         'none' );
-                add_option( 'bcs_alert_webhook_url',            '' );
-                add_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        '' );
-                add_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        '' );
-                add_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL,  '' );
-                add_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,      '' );
-                add_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,       '' );
-                add_option( BCS_SMTP_OPT_MAX_ALERT_COUNT,       0 );
-                add_option( BCS_SMTP_OPT_ALERT_SENT_COUNT,      0 );
-
-                // Migrate old single webhook URL to per-channel options.
-                $old_url = get_option( 'bcs_alert_webhook_url', '' );
-                $channel = get_option( 'bcs_alert_channel', 'none' );
-                if ( ! empty( $old_url ) ) {
-                        if ( 'slack' === $channel && ! get_option( 'bcs_slack_webhook_url' ) ) {
-                                update_option( 'bcs_slack_webhook_url', $old_url );
-                        } elseif ( 'teams' === $channel && ! get_option( 'bcs_teams_webhook_url' ) ) {
-                                update_option( 'bcs_teams_webhook_url', $old_url );
-                        }
+/**
+ * Settings link on the Plugins page.
+ *
+ * @param  string[] $links
+ * @return string[]
+ */
+function bcs_smtp_plugin_action_links( $links ) {
+        $settings = '<a href="' . esc_url( admin_url( 'options-general.php?page=bcs-smtp-manager' ) ) . '">' . esc_html__( 'Settings', 'bcs-smtp-manager' ) . '</a>';
+        array_unshift( $links, $settings );
+        return $links;
+}
+add_filter( 'plugin_action_links_' . BCS_SMTP_PLUGIN_BASENAME, 'bcs_smtp_plugin_action_links' );
+
+/**
+ * Initialize the plugin.
+ */
+function bcs_smtp_init() {
+        $plugin = new BCS_SMTP_Core();
+        $plugin->run();
+}
+add_action( 'plugins_loaded', 'bcs_smtp_init' );
+
+/**
+ * Activation hook — creates tables and sets default options.
+ *
+ * @since 1.0
+ */
+function bcs_smtp_activate() {
+        $db = new BCS_SMTP_DB();
+        $db->create_tables();
+
+        // SMTP connection settings
+        add_option( 'bcs_smtp_enabled',           false );
+        add_option( 'bcs_from_email',             get_option( 'admin_email' ) );
+        add_option( 'bcs_from_name',              get_option( 'blogname' ) );
+        add_option( 'bcs_smtp_host',              '' );
+        add_option( 'bcs_smtp_encryption',        'tls' );
+        add_option( 'bcs_smtp_port',              587 );
+        add_option( 'bcs_auto_tls',               true );
+        add_option( 'bcs_smtp_auth',              true );
+        add_option( 'bcs_smtp_username',          '' );
+        add_option( 'bcs_smtp_password',          '' );
+
+        // Monitoring settings
+        add_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+        add_option( BCS_SMTP_OPT_LAST_CHECK,           0 );
+        add_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS,   null );
+
+        // Alert channel settings
+        add_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+        add_option( BCS_SMTP_OPT_ALERT_CHANNEL,         'none' );
+        add_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        '' );
+        add_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        '' );
+        add_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL,  '' );
+        add_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,      '' );
+        add_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,       '' );
+        add_option( BCS_SMTP_OPT_ALERT_SENT_COUNT,      0 );
+
+        // Scheduled report settings (sent on the 1st of each month).
+        add_option( 'bcs_report_schedule_enabled',    false );
+        add_option( 'bcs_report_emails',              '' );
+}
+register_activation_hook( __FILE__, 'bcs_smtp_activate' );
+
+/**
+ * Deactivation hook — stops the scheduled checks, pruning and reports. They are booked again
+ * on the next page load after the plugin is reactivated.
+ */
+function bcs_smtp_deactivate() {
+        foreach ( array( 'bcs_smtp_health_check', 'bcs_smtp_prune_log', 'bcs_smtp_send_report' ) as $bcs_smtp_hook ) {
+                wp_clear_scheduled_hook( $bcs_smtp_hook );
+        }
+}
+register_deactivation_hook( __FILE__, 'bcs_smtp_deactivate' );
+
+/**
+ * One-time migration from 1.0: copy the old single webhook URL into the per-channel options.
+ */
+function bcs_smtp_migrate_webhook_options() {
+        if ( get_option( 'bcs_smtp_migrated_v2' ) ) {
+                return;
+        }
+        $bcs_smtp_old_url = get_option( 'bcs_alert_webhook_url', '' );
+        $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
+        if ( ! empty( $bcs_smtp_old_url ) ) {
+                if ( 'slack' === $bcs_smtp_channel && ! get_option( 'bcs_slack_webhook_url' ) ) {
+                        update_option( 'bcs_slack_webhook_url', $bcs_smtp_old_url );
+                } elseif ( 'teams' === $bcs_smtp_channel && ! get_option( 'bcs_teams_webhook_url' ) ) {
+                        update_option( 'bcs_teams_webhook_url', $bcs_smtp_old_url );
                 }
-
-                // Scheduled report settings
-                add_option( 'bcs_report_schedule_enabled',    false );
-                add_option( 'bcs_report_emails',              '' );
-                add_option( 'bcs_report_frequency',           'weekly' );
-
-                add_option( 'bcs_smtp_snapshot',              array() );
-
-                // Log retention / auto-prune settings
-                add_option( 'bcs_log_prune_mode',  'disabled' );
-                add_option( 'bcs_log_prune_value', 30 );
-
-                // Resend feature — opt-in, off by default.
-                add_option( BCS_SMTP_OPT_STORE_FAILED_BODY,          false );
-                add_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
-
-                flush_rewrite_rules();
-        }
-        register_activation_hook( __FILE__, 'bcs_smtp_activate' );
-}
-
-if ( ! function_exists( 'bcs_smtp_deactivate' ) ) {
-        /**
-         * Deactivation hook.
-         */
-        function bcs_smtp_deactivate() {
-                $timestamp = wp_next_scheduled( 'bcs_smtp_health_check' );
-                if ( $timestamp ) {
-                        wp_unschedule_event( $timestamp, 'bcs_smtp_health_check' );
-                }
-                flush_rewrite_rules();
-        }
-        register_deactivation_hook( __FILE__, 'bcs_smtp_deactivate' );
-}
-
-// One-time migration: copy old single webhook URL into per-channel options if not yet done.
-if ( ! function_exists( 'bcs_smtp_migrate_webhook_options' ) ) {
-        function bcs_smtp_migrate_webhook_options() {
-                if ( get_option( 'bcs_smtp_migrated_v2' ) ) {
-                        return;
-                }
-                $bcs_smtp_old_url = get_option( 'bcs_alert_webhook_url', '' );
-                $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
-                if ( ! empty( $bcs_smtp_old_url ) ) {
-                        if ( 'slack' === $bcs_smtp_channel ) {
-                                update_option( 'bcs_slack_webhook_url', $bcs_smtp_old_url );
-                        } elseif ( 'teams' === $bcs_smtp_channel ) {
-                                update_option( 'bcs_teams_webhook_url', $bcs_smtp_old_url );
-                        }
-                }
-                if ( false === get_option( 'bcs_max_alert_count', false ) ) {
-                        add_option( 'bcs_max_alert_count', 0 );
-                }
-                if ( false === get_option( 'bcs_alert_sent_count', false ) ) {
-                        add_option( 'bcs_alert_sent_count', 0 );
-                }
-                update_option( 'bcs_smtp_migrated_v2', true );
-
-                // Resend feature defaults for sites that installed before 1.2 (add_option is a no-op if already set).
-                add_option( BCS_SMTP_OPT_STORE_FAILED_BODY,          false );
-                add_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
-        }
-        add_action( 'plugins_loaded', 'bcs_smtp_migrate_webhook_options' );
-}
+        }
+        delete_option( 'bcs_alert_webhook_url' );
+        add_option( 'bcs_alert_sent_count', 0 );
+        update_option( 'bcs_smtp_migrated_v2', true );
+}
+add_action( 'plugins_loaded', 'bcs_smtp_migrate_webhook_options', 4 );
+
+/**
+ * One-time cleanup for 1.3: health checks, log retention and the report schedule became fixed,
+ * and the resend feature is gone. Drops the settings that no longer do anything, and the old
+ * daily/weekly report event; the monthly one is booked on init (BCS_SMTP_Core::schedule_events()).
+ * Saved email content is kept: 1.3 shows it on each email's page.
+ */
+function bcs_smtp_migrate_1_3() {
+        if ( get_option( 'bcs_smtp_migrated_1_3' ) ) {
+                return;
+        }
+        $bcs_smtp_retired = array(
+                'bcs_store_failed_body',
+                'bcs_failed_body_retention_days',
+                'bcs_log_prune_mode',
+                'bcs_log_prune_value',
+                'bcs_monitor_enabled',
+                'bcs_check_interval',
+                'bcs_failure_threshold',
+                'bcs_max_alert_count',
+                'bcs_report_frequency',
+                'bcs_smtp_snapshot',
+                'bcs_smtp_monitor_enabled', // 1.0.0
+        );
+        foreach ( $bcs_smtp_retired as $bcs_smtp_old ) {
+                delete_option( $bcs_smtp_old );
+        }
+
+        // The single webhook URL from the earliest builds: make sure it reached its channel, then drop it.
+        $bcs_smtp_old_url = (string) get_option( 'bcs_alert_webhook_url', '' );
+        $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
+        if ( '' !== $bcs_smtp_old_url && in_array( $bcs_smtp_channel, array( 'slack', 'teams' ), true ) && ! get_option( 'bcs_' . $bcs_smtp_channel . '_webhook_url' ) ) {
+                update_option( 'bcs_' . $bcs_smtp_channel . '_webhook_url', $bcs_smtp_old_url );
+        }
+        delete_option( 'bcs_alert_webhook_url' );
+
+        wp_clear_scheduled_hook( 'bcs_smtp_health_check' ); // Rescheduled on the fixed 15-minute interval.
+        wp_clear_scheduled_hook( 'bcs_smtp_send_report' );  // Rebooked for the 1st of the month.
+
+        // Earlier versions could keep the log forever; 1.3 keeps 90 days. Nothing is pruned for
+        // 30 days after updating, so older entries can be exported first (the Email log says so).
+        add_option( 'bcs_smtp_prune_after', time() + 30 * DAY_IN_SECONDS, '', false );
+
+        // 1.0.0 stored the SMTP password as plain text; encrypt it now rather than on the next save.
+        $bcs_smtp_pw = (string) get_option( 'bcs_smtp_password', '' );
+        if ( '' !== $bcs_smtp_pw && 0 !== strpos( $bcs_smtp_pw, 'enc:' ) && 0 !== strpos( $bcs_smtp_pw, 'enc2:' ) ) {
+                $bcs_smtp_mailer = new BCS_SMTP_Mailer();
+                update_option( 'bcs_smtp_password', $bcs_smtp_mailer->encrypt_password( $bcs_smtp_pw ) );
+        }
+
+        update_option( 'bcs_smtp_migrated_1_3', true );
+}
+add_action( 'plugins_loaded', 'bcs_smtp_migrate_1_3', 5 ); // After the 1.0 migration, before bcs_smtp_init().

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-core.php

@@ -55 +55 @@
                 add_action( 'wp_ajax_bcs_smtp_send_test',          array( $this->admin, 'ajax_send_test' ) );
                 add_action( 'wp_ajax_bcs_smtp_check_now',          array( $this->admin, 'ajax_check_now' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_monitor',       array( $this->admin, 'ajax_save_monitor' ) );
+                add_action( 'wp_ajax_bcs_smtp_get_health_banner', array( $this->admin, 'ajax_get_health_banner' ) );
                 add_action( 'wp_ajax_bcs_smtp_save_alerts',        array( $this->admin, 'ajax_save_alerts' ) );
                 add_action( 'wp_ajax_bcs_smtp_send_test_alert',    array( $this->admin, 'ajax_send_test_alert' ) );
@@ -62 +62 @@
                 add_action( 'wp_ajax_bcs_smtp_save_report_schedule', array( $this->admin, 'ajax_save_report_schedule' ) );
                 add_action( 'wp_ajax_bcs_smtp_send_report_now',    array( $this->admin, 'ajax_send_report_now' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_log_prune',     array( $this->admin, 'ajax_save_log_prune' ) );
-                add_action( 'wp_ajax_bcs_smtp_resend_email',       array( $this->admin, 'ajax_resend_email' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_resend_settings', array( $this->admin, 'ajax_save_resend_settings' ) );
         }
 
@@ -75 +72 @@
         public function run() {
                 $this->db->maybe_create_tables();
+
+                // Scheduling reads the cron schedules, whose labels are translated, so it waits for init:
+                // translations loaded earlier trigger a "_load_textdomain_just_in_time" notice (WP 6.7+).
+                add_action( 'init', array( $this, 'schedule_events' ) );
+        }
+
+        public function schedule_events() {
                 $this->monitor->maybe_schedule_event();
+                $this->admin->ensure_report_scheduled();
 
-                // Schedule daily log pruning cron (runs even when mode is 'disabled' — no-op in that case).
+                // Daily pruning keeps the log to the last BCS_SMTP_LOG_RETENTION_DAYS days.
                 if ( ! wp_next_scheduled( 'bcs_smtp_prune_log' ) ) {
                         wp_schedule_event( time() + DAY_IN_SECONDS, 'daily', 'bcs_smtp_prune_log' );

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-db.php

@@ -69 +69 @@
         public function maybe_create_tables() {
                 $this->migrate_table_names();
-                if ( get_option( 'bcs_db_version' ) !== BCS_SMTP_VERSION ) {
+                if ( get_option( 'bcs_db_version' ) !== BCS_SMTP_DB_VERSION ) {
                         $this->create_tables();
-                        update_option( 'bcs_db_version', BCS_SMTP_VERSION );
+                        update_option( 'bcs_db_version', BCS_SMTP_DB_VERSION );
                 }
         }
@@ -80 +80 @@
                 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
 
-                // Email log — every wp_mail() call is recorded here. Message body/headers are
-                // intentionally NOT in this schema by default — only delivery metadata is retained
-                // (see readme.txt). The `body`/`body_format` columns below are the sole exception:
-                // populated only for FAILED sends, only when the opt-in "Store failed email content"
-                // setting is enabled, and purged after a configurable retention window — see
-                // BCS_SMTP_Mailer::on_email_failed() and BCS_SMTP_Admin::run_log_pruning().
+                // Email log — every wp_mail() call is recorded here with its delivery details and message:
+                // `body`, `body_format`, `mail_headers` and `attachments` (file names only, never the files).
+                // Rows are pruned after BCS_SMTP_LOG_RETENTION_DAYS — see BCS_SMTP_Mailer::capture_outgoing_email().
                 $sql = "CREATE TABLE {$this->email_log_table()} (
                         id             bigint(20) unsigned NOT NULL AUTO_INCREMENT,
@@ -98 +95 @@
                         body           longtext,
                         body_format    varchar(10),
+                        mail_headers   text,
+                        attachments    text,
                         resend_count   smallint(5) unsigned NOT NULL DEFAULT 0,
                         last_resend_at datetime NULL,
@@ -114 +113 @@
                 // Migration: drop the legacy `headers` column from installs that pre-date 1.2 (dbDelta
                 // never drops columns). Note: `body` is deliberately NOT in this list from 1.2 onward —
-                // it was dropped in 1.1 but is re-added (conditionally populated) by the CREATE TABLE above
-                // to support the opt-in "Resend failed emails" feature.
+                // it was dropped in 1.1 and re-added for the resend feature (removed in 1.3; the column is
+                // kept so existing tables need no destructive change, and is cleared on upgrade).
                 $table = esc_sql( $this->email_log_table() );
                 foreach ( array( 'headers' ) as $col ) {
@@ -158 +157 @@
                                 'message_id'   => isset( $data['message_id'] )   ? $data['message_id']   : null,
                                 'provider'     => isset( $data['provider'] )     ? $data['provider']     : null,
+                                'body'         => isset( $data['body'] )         ? $data['body']         : null,
+                                'body_format'  => isset( $data['body_format'] )  ? $data['body_format']  : null,
+                                'mail_headers' => isset( $data['mail_headers'] ) ? $data['mail_headers'] : null,
+                                'attachments'  => isset( $data['attachments'] )  ? $data['attachments']  : null,
                         ),
-                        array( '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )
+                        array( '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )
                 );
                 return (int) $wpdb->insert_id;
@@ -258 +261 @@
         }
 
-        /**
-         * Store the message body for a failed send (opt-in, see BCS_SMTP_OPT_STORE_FAILED_BODY).
-         * Never called for successful/unconfirmed sends.
-         *
-         * @param int    $id
-         * @param string $body
-         * @param string $format 'html'|'text'
-         */
-        public function update_email_log_body( $id, $body, $format = 'text' ) {
-                global $wpdb;
-                $wpdb->update( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        $this->email_log_table(),
-                        array( 'body' => $body, 'body_format' => $format ),
-                        array( 'id' => (int) $id ),
-                        array( '%s', '%s' ),
-                        array( '%d' )
-                );
-        }
-
-        /**
-         * Bump the resend counter and timestamp on the original log row.
-         * Called regardless of whether the resend attempt itself succeeds.
-         *
-         * @param int $id
-         */
-        public function increment_resend_count( $id ) {
-                global $wpdb;
-                $table = esc_sql( $this->email_log_table() );
-                $wpdb->query( $wpdb->prepare( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        "UPDATE {$table} SET resend_count = resend_count + 1, last_resend_at = %s WHERE id = %d", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                        current_time( 'mysql' ),
-                        (int) $id
-                ) );
-        }
-
-        /**
-         * Clear stored bodies of failed emails older than $days — independent of (and typically
-         * shorter than) the overall log retention window, since bodies are more sensitive than metadata.
-         *
-         * @param int $days
-         */
-        public function clear_old_failed_bodies( $days ) {
-                global $wpdb;
-                $table = esc_sql( $this->email_log_table() );
-                $days  = max( 1, (int) $days );
-                $wpdb->query( $wpdb->prepare( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        "UPDATE {$table} SET body = NULL, body_format = NULL WHERE status = 'failed' AND body IS NOT NULL AND sent_at < DATE_SUB(NOW(), INTERVAL %d DAY)", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                        $days
-                ) );
-        }
-
         /* ─────────────────────────────────────────────────────────────────── */
         /* Email log — read                                                     */
@@ -324 +276 @@
          *   per_page   int     Rows per page
          * }
+         * Rows carry the delivery columns only, never message bodies, so a page of the log stays light.
+         *
          * @return array { rows, total, pages, page, per_page }
          */
@@ -367 +321 @@
                                 $wpdb->prepare(
                                         // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                                        "SELECT * FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
+                                        "SELECT id, sent_at, subject, from_address, to_address, status, error_msg, message_id, provider FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
                                         (int) $args['per_page'],
                                         $offset
@@ -381 +335 @@
                                 $wpdb->prepare( // phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.ReplacementsWrongNumber,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
                                         // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                                        "SELECT * FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
+                                        "SELECT id, sent_at, subject, from_address, to_address, status, error_msg, message_id, provider FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
                                         array_merge( $params, array( (int) $args['per_page'], $offset ) )
                                 ),
@@ -395 +349 @@
                         'per_page' => (int) $args['per_page'],
                 );
+        }
+
+
+        /**
+         * IDs of the next newer and older emails, for stepping through the log one email at a time.
+         *
+         * @param  int $id
+         * @return array{newer:int,older:int} 0 when there is none.
+         */
+        public function get_adjacent_log_ids( $id ) {
+                global $wpdb;
+                $table = esc_sql( $this->email_log_table() );
+                // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+                $newer = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM {$table} WHERE id > %d ORDER BY id ASC LIMIT 1", (int) $id ) );
+                $older = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM {$table} WHERE id < %d ORDER BY id DESC LIMIT 1", (int) $id ) );
+                // phpcs:enable
+                return array( 'newer' => (int) $newer, 'older' => (int) $older );
+        }
+
+        /**
+         * How many log entries are older than the given number of days.
+         *
+         * @param  int $days
+         * @return int
+         */
+        public function count_email_log_older_than( $days ) {
+                global $wpdb;
+                $table  = esc_sql( $this->email_log_table() );
+                $cutoff = gmdate( 'Y-m-d H:i:s', current_time( 'timestamp' ) - (int) $days * DAY_IN_SECONDS );
+                // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+                return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$table} WHERE sent_at < %s", $cutoff ) );
+        }
+
+        /**
+         * Emails per status for a date range and search, for the log's status filter.
+         *
+         * @param  string $date_range
+         * @param  string $search
+         * @return array{all:int,success:int,failed:int,unconfirmed:int}
+         */
+        public function count_email_log_by_status( $date_range = '30days', $search = '' ) {
+                global $wpdb;
+                $table  = esc_sql( $this->email_log_table() );
+                $where  = array( '1=1' );
+                $params = array();
+
+                $date_sql = $this->build_date_where( $date_range );
+                if ( $date_sql ) {
+                        $where[] = $date_sql;
+                }
+                if ( '' !== $search ) {
+                        $like     = '%' . $wpdb->esc_like( $search ) . '%';
+                        $where[]  = '( subject LIKE %s OR from_address LIKE %s OR to_address LIKE %s )';
+                        $params[] = $like;
+                        $params[] = $like;
+                        $params[] = $like;
+                }
+                $sql = "SELECT status, COUNT(*) AS n FROM {$table} WHERE " . implode( ' AND ', $where ) . ' GROUP BY status';
+                // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.NotPrepared,PluginCheck.Security.DirectDB.UnescapedDBParameter
+                $rows = $wpdb->get_results( $params ? $wpdb->prepare( $sql, $params ) : $sql, ARRAY_A );
+
+                $counts = array( 'all' => 0, 'success' => 0, 'failed' => 0, 'unconfirmed' => 0 );
+                foreach ( (array) $rows as $r ) {
+                        if ( isset( $counts[ $r['status'] ] ) ) {
+                                $counts[ $r['status'] ] = (int) $r['n'];
+                        }
+                        $counts['all'] += (int) $r['n'];
+                }
+                return $counts;
+        }
+
+        /**
+         * How many different people actually received email in the range: unique recipient
+         * addresses on successfully sent emails only (failed and unconfirmed sends don't count).
+         *
+         * @param string $date_range       Range key.
+         * @param array  $exclude          Addresses to leave out (the site's own team).
+         * @param array  $exclude_domains  Domains whose addresses are left out, e.g. "example.com".
+         * @return int
+         */
+        public function count_unique_recipients( $date_range = '30days', $exclude = array(), $exclude_domains = array() ) {
+                $exclude         = array_flip( array_map( 'strtolower', array_map( 'trim', (array) $exclude ) ) );
+                $exclude_domains = array_map( 'strtolower', array_filter( array_map( 'trim', (array) $exclude_domains ) ) );
+                global $wpdb;
+                $table    = esc_sql( $this->email_log_table() );
+                $date_sql = $this->build_date_where( $date_range );
+                $where    = "WHERE status = 'success'" . ( $date_sql ? " AND {$date_sql}" : '' );
+
+                $rows = $wpdb->get_col( "SELECT to_address FROM {$table} {$where}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,PluginCheck.Security.DirectDB.UnescapedDBParameter
+
+                // A row can hold several comma-separated addresses; count each person once.
+                $seen = array();
+                foreach ( (array) $rows as $list ) {
+                        foreach ( explode( ',', (string) $list ) as $addr ) {
+                                $addr = strtolower( trim( $addr ) );
+                                if ( preg_match( '/<([^>]+)>/', $addr, $m ) ) {
+                                        $addr = trim( $m[1] );
+                                }
+                                if ( '' === $addr || isset( $exclude[ $addr ] ) ) {
+                                        continue;
+                                }
+                                $domain = substr( strrchr( $addr, '@' ), 1 );
+                                if ( $domain && in_array( $domain, $exclude_domains, true ) ) {
+                                        continue;
+                                }
+                                $seen[ $addr ] = true;
+                        }
+                }
+                return count( $seen );
+        }
+
+        /**
+         * Return success/failed/unconfirmed/total counts for the given date range.
+         *
+         * @param  string $date_range
+         * @return array  { success, failed, unconfirmed, total, recipients }
+         */
+        public function get_email_summary_with_recipients( $date_range = '30days', $exclude = array(), $exclude_domains = array() ) {
+                $summary               = $this->get_email_summary( $date_range );
+                $summary['recipients'] = $this->count_unique_recipients( $date_range, $exclude, $exclude_domains );
+                return $summary;
         }
 
@@ -426 +501 @@
 
         /**
-         * Return daily counts per status, suitable for a Chart.js dataset.
+         * Return daily counts per status, used by the admin line charts and the report email.
          *
          * @param  string $date_range
@@ -591 +666 @@
                                 $s = gmdate( 'Y-m-01 00:00:00', $now );
                                 return "sent_at >= '{$s}'";
+                        case 'last_month':
+                                $s = gmdate( 'Y-m-01 00:00:00', strtotime( 'first day of last month', $now ) );
+                                $e = gmdate( 'Y-m-t 23:59:59', strtotime( 'first day of last month', $now ) );
+                                return "sent_at BETWEEN '{$s}' AND '{$e}'";
                         case '3months':
                                 $s = gmdate( 'Y-m-d 00:00:00', strtotime( '-3 months', $now ) );
@@ -615 +694 @@
                         'last_week'  => 14,
                         'this_month' => 30,
+                        'last_month' => 62,
                         '3months'    => 90,
                         '6months'    => 180,

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-email-template.php

@@ -1 +1 @@
 <?php
 /**
- * Shared HTML chrome for outgoing plugin emails (test email + scheduled report).
- * Holds only the markup that is genuinely identical between templates — each
- * template still builds its own header banner and body content.
+ * Shared layout for the plugin's own emails (test email + monthly report).
+ *
+ * Table-based and inline-styled so it holds up in Outlook and Gmail; fluid up to 600px
+ * so it fits phones; with a hidden preheader for the inbox preview line and dark-mode
+ * overrides for clients that support them (Apple Mail, Outlook for Mac/iOS).
  *
  * @package BCS_SMTP_Manager
@@ -13 +15 @@
 class BCS_SMTP_Email_Template {
 
+        const BRAND = '#1450c4';
+        const FONT  = "-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif";
+        const MONO  = "ui-monospace,SFMono-Regular,Menlo,Consolas,'Liberation Mono',monospace";
+
+        /** Status tones: text colour and soft background. */
+        const TONES = array(
+                'ok'   => array( '#0f7a4a', '#e6f6ee' ),
+                'bad'  => array( '#c62828', '#fdecec' ),
+                'warn' => array( '#a15c00', '#fdf3e1' ),
+                'info' => array( '#1450c4', '#e8effc' ),
+        );
+
         /**
-         * Opening half of the email: DOCTYPE/head/body + the outer centering table
-         * + the inner content card table (open only — caller fills in everything else).
+         * A whole email document.
          *
-         * @param string $title          <title> text.
-         * @param int    $width          Inner card width in px.
-         * @param int    $radius         Inner card border-radius in px.
-         * @param string $shadow_opacity Box-shadow alpha, e.g. '.08'.
+         * @param array $args {
+         *     @type string $title     Document title.
+         *     @type string $preheader Inbox preview text (plain).
+         *     @type string $label     Small label shown above the card, right of the site name (plain).
+         *     @type string $body      Card rows: one or more escaped `<tr>` elements.
+         *     @type string $footer    Escaped HTML for the line under the card.
+         * }
+         * @return string
          */
-        public static function wrapper_open( $title, $width = 600, $radius = 14, $shadow_opacity = '.08' ) {
+        public static function document( $args ) {
+                $args = wp_parse_args( $args, array( 'title' => '', 'preheader' => '', 'label' => '', 'body' => '', 'footer' => '' ) );
+                $site = get_bloginfo( 'name' );
+                // Pads the preview so clients don't fill it with the first lines of the body.
+                $pad = str_repeat( '&#847;&zwnj;&nbsp;', 40 );
+
                 return '<!DOCTYPE html>
-<html lang="en">
-<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>' . esc_html( $title ) . '</title></head>
-<body style="margin:0;padding:0;background:#f1f5f9;font-family:-apple-system,BlinkMacSystemFont,\'Segoe UI\',Roboto,sans-serif">
-<table width="100%" cellpadding="0" cellspacing="0" border="0" bgcolor="#f1f5f9" style="background-color:#f1f5f9;padding:40px 16px">
-<tr><td align="center">
-<table width="' . (int) $width . '" cellpadding="0" cellspacing="0" border="0" bgcolor="#ffffff" style="background-color:#ffffff;border-radius:' . (int) $radius . 'px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,' . esc_attr( $shadow_opacity ) . ')">
-';
-        }
-
-        /** Closing half of the email — matches wrapper_open(). */
-        public static function wrapper_close() {
-                return '
+<html lang="' . esc_attr( str_replace( '_', '-', get_locale() ) ) . '">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<meta name="color-scheme" content="light dark">
+<meta name="supported-color-schemes" content="light dark">
+<title>' . esc_html( $args['title'] ) . '</title>
+<style>
+body{margin:0;padding:0;-webkit-text-size-adjust:100%}
+a{color:' . self::BRAND . '}
+@media (max-width:620px){
+  .bcs-pad{padding-left:22px!important;padding-right:22px!important}
+  .bcs-h1{font-size:24px!important}
+  .bcs-big{font-size:40px!important}
+  .bcs-hide-sm{display:none!important}
+}
+@media (prefers-color-scheme:dark){
+  .bcs-bg{background:#0b1120!important}
+  .bcs-card{background:#111a2e!important;border-color:#1e2a44!important}
+  .bcs-ink{color:#e8edf6!important}
+  .bcs-ink2{color:#a7b3c8!important}
+  .bcs-ink3{color:#7d8aa1!important}
+  .bcs-line{border-color:#1e2a44!important}
+  .bcs-soft{background:#0d1526!important}
+  .bcs-track{background:#1e2a44!important}
+}
+</style>
+</head>
+<body class="bcs-bg" style="margin:0;padding:0;background:#eef1f6">
+<div style="display:none;max-height:0;max-width:0;overflow:hidden;opacity:0;mso-hide:all;font-size:1px;line-height:1px;color:#eef1f6">' . esc_html( $args['preheader'] ) . $pad . '</div>
+<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" class="bcs-bg" bgcolor="#eef1f6" style="background:#eef1f6">
+<tr><td align="center" style="padding:32px 12px 40px">
+<!--[if mso]><table role="presentation" width="600" cellpadding="0" cellspacing="0" border="0"><tr><td><![endif]-->
+<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="max-width:600px;font-family:' . self::FONT . '">
+  <tr><td style="padding:0 6px 14px">
+    <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+      <td class="bcs-ink" style="font-size:14px;font-weight:700;color:#0f172a;letter-spacing:-.1px">' . esc_html( $site ) . '</td>
+      <td class="bcs-ink3" align="right" style="font-size:12px;color:#8a94a6">' . esc_html( $args['label'] ) . '</td>
+    </tr></table>
+  </td></tr>
+  <tr><td class="bcs-card" bgcolor="#ffffff" style="background:#ffffff;border:1px solid #e2e7ef;border-radius:14px;overflow:hidden">
+    <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
+      <tr><td height="4" bgcolor="' . self::BRAND . '" style="background:' . self::BRAND . ';height:4px;font-size:0;line-height:0">&nbsp;</td></tr>
+' . $args['body'] . '
+    </table>
+  </td></tr>
+  <tr><td class="bcs-ink3" align="center" style="padding:22px 16px 0;font-size:12px;line-height:1.6;color:#8a94a6">' . $args['footer'] . '</td></tr>
 </table>
+<!--[if mso]></td></tr></table><![endif]-->
 </td></tr>
 </table>
@@ -44 +102 @@
 
         /**
-         * The small "Sent from / via ByteCoreStack SMTP" branding line
-         * used in every plugin email footer. $extra is appended after the brand name
-         * (e.g. a "Manage settings" link) so each template can still differ slightly.
+         * Small rounded status pill with a dot.
+         *
+         * @param string $text Plain text.
+         * @param string $tone ok|bad|warn|info.
          */
-        public static function brand_footer_line( $site_url, $site_name, $extra = '' ) {
-                return '<p style="margin:0;font-size:11px;color:#94a3b8">' .
-                        'Sent from <a href="' . esc_url( $site_url ) . '" style="color:#6366f1;text-decoration:none">' . esc_html( $site_name ) . '</a> ' .
-                        'via <strong style="color:#64748b">ByteCoreStack SMTP</strong>' . $extra .
-                        '</p>';
+        public static function pill( $text, $tone = 'info' ) {
+                list( $ink, $bg ) = isset( self::TONES[ $tone ] ) ? self::TONES[ $tone ] : self::TONES['info'];
+                return '<span style="display:inline-block;padding:5px 11px 5px 10px;border-radius:999px;background:' . $bg . ';color:' . $ink . ';font-size:12px;font-weight:600;line-height:1.2">'
+                        . '<span style="color:' . $ink . '">&#9679;</span>&nbsp;' . esc_html( $text ) . '</span>';
+        }
+
+        /**
+         * Solid brand button that renders as a button in Outlook too.
+         *
+         * @param string $url   Link.
+         * @param string $label Plain text.
+         */
+        public static function button( $url, $label ) {
+                return '<table role="presentation" cellpadding="0" cellspacing="0" border="0"><tr>
+  <td bgcolor="' . self::BRAND . '" style="background:' . self::BRAND . ';border-radius:9px">
+    <a href="' . esc_url( $url ) . '" style="display:inline-block;padding:13px 22px;font-family:' . self::FONT . ';font-size:14px;font-weight:600;color:#ffffff;text-decoration:none;border-radius:9px">' . esc_html( $label ) . '&nbsp;&rarr;</a>
+  </td></tr></table>';
+        }
+
+        /**
+         * Label / value rows separated by hairlines.
+         *
+         * @param array $rows List of array( label, value, mono? ). Plain text.
+         */
+        public static function details( $rows ) {
+                $html = '';
+                foreach ( $rows as $i => $row ) {
+                        $border = $i ? 'border-top:1px solid #edf0f5;' : '';
+                        $font   = ! empty( $row[2] ) ? 'font-family:' . self::MONO . ';font-size:13px;' : 'font-size:14px;';
+                        $html  .= '<tr>
+  <td class="bcs-ink3 bcs-line" width="34%" valign="top" style="' . $border . 'padding:12px 12px 12px 0;font-size:13px;color:#64748b">' . esc_html( $row[0] ) . '</td>
+  <td class="bcs-ink bcs-line" valign="top" style="' . $border . 'padding:12px 0;' . $font . 'color:#0f172a;word-break:break-word">' . esc_html( $row[1] ) . '</td>
+</tr>';
+                }
+                return '<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">' . $html . '</table>';
+        }
+
+        /**
+         * Footer line: "Sent from {site} by ByteCoreStack SMTP · {link}".
+         *
+         * @param string $link_url   Settings link.
+         * @param string $link_label Plain text.
+         * @param string $before     Escaped HTML shown on its own line above, optional.
+         */
+        public static function footer( $link_url, $link_label, $before = '' ) {
+                /* translators: 1: site name (linked), 2: plugin name. */
+                $sent = sprintf( esc_html__( 'Sent from %1$s by %2$s', 'bcs-smtp-manager' ), '<a href="' . esc_url( home_url( '/' ) ) . '" style="color:#64748b;text-decoration:underline">' . esc_html( get_bloginfo( 'name' ) ) . '</a>', 'ByteCoreStack SMTP' );
+                return ( $before ? $before . '<br>' : '' ) . $sent . ' &middot; <a href="' . esc_url( $link_url ) . '" style="color:#64748b;text-decoration:underline">' . esc_html( $link_label ) . '</a>';
+        }
+
+        /**
+         * Link to a tab of the plugin's settings page.
+         *
+         * @param string $tab overview|connection|alerts|reports|email-log.
+         */
+        public static function settings_url( $tab = '' ) {
+                return admin_url( 'options-general.php?page=bcs-smtp-manager' ) . ( $tab ? '#' . $tab : '' );
         }
 }

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-mailer.php

@@ -17 +17 @@
         public $pending_log_id = null;
 
-        /** Body/format of the email currently being sent — held in memory only, never persisted unless the send fails. */
-        private $pending_body        = '';
-        private $pending_body_format = 'text';
+        /** Server-side SMTP transcript lines for the email currently being sent (credentials never included). */
+        private $smtp_transcript = array();
 
         public function __construct( $db = null ) {
@@ -76 +75 @@
          */
         public function capture_outgoing_email( $args ) {
+                $this->smtp_transcript = array();
+
                 if ( ! $this->db ) {
                         return $args;
@@ -108 +109 @@
                 $args['headers'] = $headers;
 
-                // Note: message body/headers are NOT persisted to the log table for successful/unconfirmed
-                // sends — only delivery metadata is stored (see readme.txt "What is tracked"). The body is
-                // held here in memory only; it's written to the DB by on_email_failed() below, and only
-                // then, only when the send actually fails, and only if the opt-in retention setting is on.
-                $this->pending_body        = isset( $args['message'] ) ? (string) $args['message'] : '';
-                $this->pending_body_format = ( false !== stripos( implode( ' ', $headers ), 'text/html' ) ) ? 'html' : 'text';
-
-                $this->pending_log_id = $this->db->log_email( array(
+                $row = array(
                         'subject'      => isset( $args['subject'] ) ? $args['subject'] : '',
                         'from_address' => $from_address,
@@ -121 +115 @@
                         'status'       => 'pending',
                         'message_id'   => $tracking_id,
-                ) );
+                );
+
+                // Keep the message itself so the log can show the full email.
+                $row = array_merge( $row, $this->email_content_for_log( $args, $headers ) );
+
+                $this->pending_log_id = $this->db->log_email( $row );
 
                 return $args;
@@ -132 +131 @@
          * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer
          */
+        /** Most bytes of a message body kept per email, so one huge newsletter can't bloat the table. */
+        const MAX_LOGGED_BODY = 1048576;
+
+        /**
+         * Body, headers and attachment names to save with a log row.
+         *
+         * @param  array    $args    wp_mail() arguments.
+         * @param  string[] $headers Normalized header lines, including our tracking header.
+         * @return array
+         */
+        private function email_content_for_log( $args, $headers ) {
+                $body = isset( $args['message'] ) ? (string) $args['message'] : '';
+                if ( strlen( $body ) > self::MAX_LOGGED_BODY ) {
+                        $body = function_exists( 'mb_strcut' ) ? mb_strcut( $body, 0, self::MAX_LOGGED_BODY, 'UTF-8' ) : substr( $body, 0, self::MAX_LOGGED_BODY );
+                }
+
+                $kept         = array();
+                $content_type = '';
+                foreach ( $headers as $header ) {
+                        if ( 0 === stripos( $header, 'X-BPTSM-ID:' ) ) {
+                                continue;
+                        }
+                        $kept[] = $header;
+                        if ( 0 === stripos( $header, 'Content-Type:' ) ) {
+                                $content_type = $header;
+                        }
+                }
+                if ( '' === $content_type ) {
+                        // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- reading a WordPress core filter.
+                        $content_type = (string) apply_filters( 'wp_mail_content_type', 'text/plain' );
+                }
+                $is_html = false !== stripos( $content_type, 'text/html' ) || preg_match( '/<(html|body|table|div|p|br)\b/i', $body );
+
+                // Attachment file names only; the files themselves are never copied.
+                $attachments = isset( $args['attachments'] ) ? $args['attachments'] : array();
+                if ( is_string( $attachments ) ) {
+                        $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) );
+                }
+                $names = array();
+                foreach ( (array) $attachments as $name => $file ) {
+                        if ( '' !== trim( (string) $file ) ) {
+                                $names[] = is_string( $name ) ? $name : wp_basename( (string) $file );
+                        }
+                }
+
+                return array(
+                        'body'         => $body,
+                        'body_format'  => $is_html ? 'html' : 'text',
+                        'mail_headers' => $kept ? wp_json_encode( $kept ) : null,
+                        'attachments'  => $names ? wp_json_encode( $names ) : null,
+                );
+        }
+
         public function on_phpmailer_init( $phpmailer ) {
                 $smtp_enabled = (bool) get_option( 'bcs_smtp_enabled' );
@@ -137 +189 @@
                 if ( $smtp_enabled ) {
                         $this->configure_phpmailer( $phpmailer );
+                        $this->attach_transcript_capture( $phpmailer );
                 }
 
@@ -165 +218 @@
         public function on_email_failed( $error ) {
                 if ( $this->db && $this->pending_log_id ) {
-                        $msg = is_wp_error( $error ) ? $error->get_error_message() : 'Unknown error';
+                        $msg = $this->describe_failure( is_wp_error( $error ) ? $error->get_error_message() : 'Unknown error' );
                         $this->db->update_email_log_status( $this->pending_log_id, 'failed', $msg );
 
-                        if ( get_option( BCS_SMTP_OPT_STORE_FAILED_BODY, false ) && '' !== $this->pending_body ) {
-                                $this->db->update_email_log_body( $this->pending_log_id, $this->pending_body, $this->pending_body_format );
-                        }
-
-                        $this->pending_log_id     = null;
-                        $this->pending_body        = '';
-                        $this->pending_body_format = 'text';
-                }
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* Resend a failed email                                                */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        /**
-         * Resend a previously logged, failed email using its stored body.
-         * Re-enters the normal wp_mail()/capture/log hook chain, so a fresh log row
-         * is created for the resend attempt — the original row is untouched other
-         * than its resend_count/last_resend_at audit fields.
-         *
-         * @param  int $log_id
-         * @return array { success: bool, message: string }
-         */
-        public function resend_stored_email( $log_id ) {
-                if ( ! $this->db ) {
-                        return array( 'success' => false, 'message' => __( 'Internal error — database unavailable.', 'bcs-smtp-manager' ) );
-                }
-
-                $row = $this->db->get_email_log_row( $log_id );
-                if ( ! $row ) {
-                        return array( 'success' => false, 'message' => __( 'Log entry not found.', 'bcs-smtp-manager' ) );
-                }
-                if ( 'failed' !== $row['status'] ) {
-                        return array( 'success' => false, 'message' => __( 'Only failed emails can be resent.', 'bcs-smtp-manager' ) );
-                }
-                if ( empty( $row['body'] ) ) {
-                        return array( 'success' => false, 'message' => __( 'No stored content to resend — enable "Store failed email content" in the Config tab before the failure occurs.', 'bcs-smtp-manager' ) );
-                }
-                if ( empty( $row['to_address'] ) ) {
-                        return array( 'success' => false, 'message' => __( 'Log entry has no recipient address.', 'bcs-smtp-manager' ) );
-                }
-
-                $headers = array();
-                if ( 'html' === $row['body_format'] ) {
-                        $headers[] = 'Content-Type: text/html; charset=UTF-8';
-                }
-
-                $this->db->increment_resend_count( $log_id );
-
-                $sent = wp_mail( $row['to_address'], $row['subject'], $row['body'], $headers );
-
-                return array(
-                        'success' => (bool) $sent,
-                        'message' => $sent
-                                ? __( 'Resend attempted — check the Email Log for the new entry\'s delivery status.', 'bcs-smtp-manager' )
-                                : __( 'wp_mail() returned false when resending — check the new log entry for details.', 'bcs-smtp-manager' ),
-                );
+                        $this->pending_log_id = null;
+                }
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* SMTP transcript capture (failure diagnostics)                       */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /** @var callable|null The Debugoutput closure we installed, so we can recognise our own. */
+        private $transcript_cb = null;
+
+        /**
+         * Capture PHPMailer's debug output so a failure can report the server's actual reply
+         * (e.g. "535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled")
+         * instead of PHPMailer's generic "Could not authenticate.". Client lines are discarded, so
+         * nothing the site sends — including credentials — is ever retained.
+         *
+         * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer
+         */
+        private function attach_transcript_capture( $phpmailer ) {
+                if ( null === $this->transcript_cb ) {
+                        $this->transcript_cb = function ( $str ) {
+                                $str = trim( (string) $str );
+                                if ( '' === $str || 0 === strpos( $str, 'CLIENT -> SERVER' ) || count( $this->smtp_transcript ) >= 200 ) {
+                                        return;
+                                }
+                                $this->smtp_transcript[] = $str;
+                        };
+                }
+                // Respect a debug level another plugin or developer set deliberately.
+                if ( 0 !== (int) $phpmailer->SMTPDebug && $phpmailer->Debugoutput !== $this->transcript_cb ) {
+                        return;
+                }
+                $phpmailer->SMTPDebug   = 3; // SMTP::DEBUG_CONNECTION — includes connection-level errors.
+                $phpmailer->Debugoutput = $this->transcript_cb;
+        }
+
+        /**
+         * Most relevant error line from the last SMTP conversation, or '' if none.
+         *
+         * @return string
+         */
+        public function get_last_smtp_error_reply() {
+                $lines = array_reverse( $this->smtp_transcript );
+                // Prefer the server's own 4xx/5xx reply — it carries the actionable reason.
+                foreach ( $lines as $line ) {
+                        if ( preg_match( '/^SERVER -> CLIENT:\s*([45]\d\d[\s-].*)$/', $line, $m ) ) {
+                                return mb_substr( trim( $m[1] ), 0, 500 );
+                        }
+                }
+                // Otherwise a connection-level error from PHPMailer's SMTP class (upper-case "SMTP ERROR:",
+                // unlike PHPMailer's generic "SMTP Error: …" message that is already in the error text).
+                foreach ( $lines as $line ) {
+                        if ( 0 === strpos( $line, 'SMTP ERROR:' ) || false !== stripos( $line, 'Connection failed' ) ) {
+                                return mb_substr( $line, 0, 500 );
+                        }
+                }
+                return '';
+        }
+
+        /**
+         * Enrich a PHPMailer error message with the server's reply and, when relevant, the
+         * unreadable-password explanation.
+         *
+         * @param  string $msg
+         * @return string
+         */
+        public function describe_failure( $msg ) {
+                $reply = $this->get_last_smtp_error_reply();
+                if ( '' !== $reply && false === strpos( $msg, $reply ) ) {
+                        $msg .= ' — Server reply: ' . $reply;
+                }
+                if ( get_option( 'bcs_smtp_enabled' ) && get_option( 'bcs_smtp_auth' ) && $this->is_password_unreadable() ) {
+                        $msg .= ' ' . $this->unreadable_password_message();
+                }
+                return $msg;
         }
 
@@ -232 +304 @@
 
         /**
-         * Encrypt a plaintext password for storage in wp_options.
-         * Keyed off this install's AUTH salt, so the ciphertext is unusable outside this site.
+         * 32-byte key used to encrypt the SMTP password.
+         *
+         * Deliberately NOT derived from wp_salt(): security plugins rotate salts (AIOS "salt postfix"
+         * changes them weekly; Solid Security / Sucuri regenerate them on demand), which silently made
+         * the stored password undecryptable and every send fail with "Could not authenticate".
+         * A BCS_SMTP_CRYPTO_KEY constant in wp-config.php takes precedence; otherwise a random key is
+         * generated once and kept in its own non-autoloaded option.
+         *
+         * @return string Raw binary key.
+         */
+        private function get_crypto_key() {
+                if ( defined( 'BCS_SMTP_CRYPTO_KEY' ) && '' !== (string) BCS_SMTP_CRYPTO_KEY ) {
+                        return hash( 'sha256', (string) BCS_SMTP_CRYPTO_KEY, true );
+                }
+                $secret = get_option( BCS_SMTP_OPT_CRYPTO_KEY, '' );
+                if ( '' === $secret ) {
+                        add_option( BCS_SMTP_OPT_CRYPTO_KEY, wp_generate_password( 64, true, true ), '', false );
+                        $secret = get_option( BCS_SMTP_OPT_CRYPTO_KEY, '' );
+                }
+                return hash( 'sha256', $secret, true );
+        }
+
+        /**
+         * Encrypt a plaintext password for storage in wp_options (AES-256-CBC + HMAC-SHA256).
          *
          * @param  string $plain
-         * @return string Encrypted value (prefixed 'enc:'), or the plain value if openssl is unavailable.
+         * @return string Encrypted value (prefixed 'enc2:'), or the plain value if openssl is unavailable.
          */
         public function encrypt_password( $plain ) {
@@ -242 +336 @@
                         return $plain;
                 }
-                $key    = hash( 'sha256', wp_salt( 'auth' ), true );
+                $key    = $this->get_crypto_key();
                 $iv     = random_bytes( 16 );
                 $cipher = openssl_encrypt( $plain, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
@@ -248 +342 @@
                         return $plain;
                 }
-                return 'enc:' . base64_encode( $iv . $cipher ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode -- ciphertext encoding, not obfuscation.
+                $mac = hash_hmac( 'sha256', $iv . $cipher, $key, true );
+                return 'enc2:' . base64_encode( $iv . $mac . $cipher ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode -- ciphertext encoding, not obfuscation.
         }
 
         /**
          * Decrypt a password previously stored via encrypt_password().
-         * Values without the 'enc:' prefix are treated as legacy plaintext (pre-encryption upgrade)
-         * and returned as-is, so existing installs keep working until their next save.
+         *
+         * 'enc2:' — current format. 'enc:' — pre-1.2.2 format keyed off wp_salt('auth'); decrypted with
+         * that legacy key and transparently re-encrypted to 'enc2:' so later salt changes can't break it.
+         * Values with neither prefix are legacy plaintext and returned as-is.
          *
          * @param  string $stored
-         * @return string
+         * @return string Plaintext, or '' when the value can't be decrypted.
          */
         public function decrypt_password( $stored ) {
-                if ( '' === $stored || 0 !== strpos( $stored, 'enc:' ) ) {
+                if ( '' === $stored ) {
+                        return '';
+                }
+                if ( 0 === strpos( $stored, 'enc2:' ) ) {
+                        if ( ! function_exists( 'openssl_decrypt' ) ) {
+                                return '';
+                        }
+                        $raw = base64_decode( substr( $stored, 5 ), true ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode -- ciphertext decoding, not obfuscation.
+                        if ( false === $raw || strlen( $raw ) <= 48 ) {
+                                return '';
+                        }
+                        $key    = $this->get_crypto_key();
+                        $iv     = substr( $raw, 0, 16 );
+                        $mac    = substr( $raw, 16, 32 );
+                        $cipher = substr( $raw, 48 );
+                        if ( ! hash_equals( hash_hmac( 'sha256', $iv . $cipher, $key, true ), $mac ) ) {
+                                return '';
+                        }
+                        $plain = openssl_decrypt( $cipher, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
+                        return false === $plain ? '' : $plain;
+                }
+                if ( 0 !== strpos( $stored, 'enc:' ) ) {
                         return $stored;
                 }
@@ -274 +392 @@
                 $key    = hash( 'sha256', wp_salt( 'auth' ), true );
                 $plain  = openssl_decrypt( $cipher, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
-                return false === $plain ? '' : $plain;
+                if ( false === $plain ) {
+                        return '';
+                }
+                // Migrate to the salt-independent format while the legacy key still works.
+                if ( get_option( 'bcs_smtp_password', '' ) === $stored ) {
+                        update_option( 'bcs_smtp_password', $this->encrypt_password( $plain ) );
+                }
+                return $plain;
         }
 
@@ -280 +405 @@
         public function get_smtp_password() {
                 return $this->decrypt_password( get_option( 'bcs_smtp_password', '' ) );
+        }
+
+        /**
+         * True when a password is saved but can no longer be decrypted (e.g. it was saved under
+         * security keys that have since changed, or the database was migrated to another site).
+         */
+        public function is_password_unreadable() {
+                $stored = get_option( 'bcs_smtp_password', '' );
+                return '' !== $stored && '' === $this->decrypt_password( $stored );
+        }
+
+        /** User-facing explanation for is_password_unreadable(). */
+        public function unreadable_password_message() {
+                return __( 'The saved SMTP password can no longer be decrypted — this happens when WordPress security keys/salts change (e.g. a security plugin rotated them) or the database was moved to another site. Re-enter the password in SMTP Manager → Settings and save.', 'bcs-smtp-manager' );
         }
 
@@ -307 +446 @@
                 $phpmailer->Host = $host;
                 $phpmailer->Port = $port;
+
+                // PHPMailer's default 300s timeout outlives PHP's max_execution_time, so a firewalled port
+                // kills the request with a fatal error instead of returning a readable failure.
+                if ( 300 === (int) $phpmailer->Timeout ) {
+                        $phpmailer->Timeout = 20;
+                }
 
                 switch ( $encryption ) {
@@ -339 +484 @@
 
         /* ─────────────────────────────────────────────────────────────────── */
-        /* SMTP Plugin Detection (used by Config tab)                           */
+        /* SMTP Plugin Detection (used by the Settings tab)                     */
         /* ─────────────────────────────────────────────────────────────────── */
 
@@ -503 +648 @@
                         return array_merge( $base, array(
                                 'success'      => false,
-                                'error_msg'    => 'No SMTP host configured. Enter your SMTP server details in the Settings tab and save first.',
+                                'error_msg'    => __( 'No SMTP server is set up yet. Enter your server details on the Connection tab and save.', 'bcs-smtp-manager' ),
                                 'failure_type' => 'not_configured',
                         ) );
@@ -513 +658 @@
                                 return array_merge( $base, array(
                                         'success'      => false,
-                                        'error_msg'    => "PHP mail() is not available on this server. Configure SMTP in the Settings tab for reliable email delivery.",
+                                        'error_msg'    => __( 'PHP mail() is not available on this server. Set up SMTP on the Connection tab for reliable email delivery.', 'bcs-smtp-manager' ),
                                         'failure_type' => 'mail_unavailable',
                                 ) );
@@ -524 +669 @@
                 }
 
+                // Built-in SMTP: run the exact connect/STARTTLS/AUTH sequence a real send uses.
+                if ( get_option( 'bcs_smtp_enabled' ) ) {
+                        return array_merge( $base, $this->test_builtin_smtp() );
+                }
+
+                // Another SMTP plugin is in charge — we don't hold its credentials, so only
+                // reachability and the TLS handshake are checked below.
                 $encryption = strtolower( $info['encryption'] ?: 'tls' );
                 $timeout    = 8;
@@ -630 +782 @@
                 }
 
-                // Test SMTP AUTH LOGIN when credentials are configured. Reachable for SSL, successfully-upgraded
-                // TLS, and also plain/'none' connections — matching exactly what a real send would attempt, so a
-                // bad username/password doesn't get silently reported as a healthy connection.
-                $auth     = (bool) get_option( 'bcs_smtp_auth', false );
-                $username = get_option( 'bcs_smtp_username', '' );
-                $password = $this->get_smtp_password();
-
-                if ( $auth && $username && $password ) {
-                        fwrite( $socket, "AUTH LOGIN\r\n" );
-                        $auth_resp = fgets( $socket, 1024 );
-                        if ( '334' === substr( trim( $auth_resp ), 0, 3 ) ) {
-                                fwrite( $socket, base64_encode( $username ) . "\r\n" );
-                                $user_resp = fgets( $socket, 1024 );
-                                if ( '334' === substr( trim( $user_resp ), 0, 3 ) ) {
-                                        fwrite( $socket, base64_encode( $password ) . "\r\n" );
-                                        $pass_resp = fgets( $socket, 1024 );
-                                        fwrite( $socket, "QUIT\r\n" );
-                                        fclose( $socket );
-                                        if ( '235' !== substr( trim( $pass_resp ), 0, 3 ) ) {
-                                                return array_merge( $base, array(
-                                                        'success'      => false,
-                                                        'error_msg'    => 'Authentication failed: ' . trim( $pass_resp ) . ' — Verify your username and password (or app password).',
-                                                        'failure_type' => 'auth_failure',
-                                                ) );
-                                        }
-                                        return array_merge( $base, array(
-                                                'success'      => true,
-                                                'error_msg'    => null,
-                                                'failure_type' => null,
-                                        ) );
-                                }
-                        }
-                        // AUTH LOGIN not accepted — server may use a different mechanism.
-                        fwrite( $socket, "QUIT\r\n" );
-                        fclose( $socket );
-                        return array_merge( $base, array(
-                                'success'      => true,
-                                'error_msg'    => null,
-                                'failure_type' => null,
-                                'auth_note'    => 'Connection OK — AUTH LOGIN not supported by this server; credentials will be verified on send.',
-                        ) );
-                }
-
                 fwrite( $socket, "QUIT\r\n" );
                 fclose( $socket );
@@ -684 +793 @@
         }
 
+        /**
+         * Connection + authentication test for the built-in SMTP config, using PHPMailer itself so
+         * every AUTH mechanism, TLS option and phpmailer_init customisation matches a real send.
+         * Nothing is sent — the session ends right after authentication.
+         *
+         * @return array {success, error_msg, failure_type}
+         */
+        private function test_builtin_smtp() {
+                $fail = function ( $msg, $type ) {
+                        return array( 'success' => false, 'error_msg' => $msg, 'failure_type' => $type );
+                };
+
+                if ( get_option( 'bcs_smtp_auth', false ) ) {
+                        if ( $this->is_password_unreadable() ) {
+                                return $fail( $this->unreadable_password_message(), 'auth_failure' );
+                        }
+                        if ( '' === (string) get_option( 'bcs_smtp_username', '' ) || '' === $this->get_smtp_password() ) {
+                                return $fail( __( 'Sign-in is turned on but the username or password is empty. Enter both on the Connection tab and save.', 'bcs-smtp-manager' ), 'auth_failure' );
+                        }
+                }
+
+                $phpmailer = $this->create_phpmailer();
+                if ( ! $phpmailer ) {
+                        return $fail( __( 'PHPMailer is not available — WordPress 5.5 or newer is required for the connection test.', 'bcs-smtp-manager' ), 'plugin_failure' );
+                }
+
+                // Apply phpmailer_init exactly as wp_mail() does, so a conflicting plugin shows up here too.
+                // Our own handler runs as part of it; park the pending log row so it isn't touched.
+                $pending              = $this->pending_log_id;
+                $this->pending_log_id = null;
+                do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- firing the core hook, as wp_mail() does.
+                $this->pending_log_id = $pending;
+
+                if ( 'smtp' !== $phpmailer->Mailer ) {
+                        return $fail( __( 'Another plugin switched PHPMailer away from SMTP during phpmailer_init, so these SMTP settings are not being used for delivery.', 'bcs-smtp-manager' ), 'plugin_failure' );
+                }
+
+                $this->smtp_transcript = array();
+                $this->attach_transcript_capture( $phpmailer );
+                $phpmailer->Timeout = min( (int) $phpmailer->Timeout, 15 );
+
+                $error = '';
+                try {
+                        $ok = $phpmailer->smtpConnect();
+                } catch ( \Exception $e ) {
+                        $ok    = false;
+                        $error = $e->getMessage();
+                }
+
+                // Connecting (and signing in, when enabled) is not proof that mail can be sent:
+                // e.g. Microsoft 365 accepts the connection without AUTH but rejects every message
+                // with "530 5.7.57 Client not authenticated". Walk the envelope a real send uses —
+                // MAIL FROM and RCPT TO — then RSET before DATA, so nothing is delivered.
+                if ( $ok ) {
+                        $envelope_error = $this->test_envelope( $phpmailer );
+                        if ( '' !== $envelope_error ) {
+                                $ok    = false;
+                                $error = $envelope_error;
+                        }
+                }
+                $phpmailer->smtpClose();
+
+                if ( $ok ) {
+                        return array( 'success' => true, 'error_msg' => null, 'failure_type' => null );
+                }
+
+                $msg = $this->describe_failure( $error ?: ( $phpmailer->ErrorInfo ?: __( 'Could not connect to the SMTP server.', 'bcs-smtp-manager' ) ) );
+                return $fail( $msg, $this->classify_failure( $msg ) );
+        }
+
+        /**
+         * Ask the server to accept a sender and a recipient on an open connection, then reset
+         * the transaction before any message data is sent.
+         *
+         * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer Connected (and authenticated, if enabled) mailer.
+         * @return string Empty when the server accepts the envelope, otherwise an error with the server's reply.
+         */
+        private function test_envelope( $phpmailer ) {
+                $smtp = $phpmailer->getSMTPInstance();
+                if ( ! $smtp || ! $smtp->connected() ) {
+                        return '';
+                }
+
+                $from = $phpmailer->From;
+                if ( ! is_email( $from ) ) {
+                        $from = get_option( 'bcs_from_email', '' );
+                }
+                if ( ! is_email( $from ) ) {
+                        $from = get_option( 'admin_email' );
+                }
+                $to = get_option( 'admin_email' );
+
+                $no_auth = ! get_option( 'bcs_smtp_auth', false );
+                $prefix  = $no_auth
+                        ? __( 'The server refused to send mail without signing in. Turn on "My server needs a username and password" and enter your credentials.', 'bcs-smtp-manager' ) . ' '
+                        : '';
+
+                if ( ! $smtp->mail( $from ) ) {
+                        $reply = trim( $smtp->getLastReply() );
+                        $smtp->reset();
+                        /* translators: 1: sender email address, 2: the SMTP server's reply. */
+                        return $prefix . sprintf( __( 'The server would not accept mail from %1$s. Server reply: %2$s', 'bcs-smtp-manager' ), $from, $reply ? $reply : __( 'no response', 'bcs-smtp-manager' ) );
+                }
+                if ( is_email( $to ) && ! $smtp->recipient( $to ) ) {
+                        $reply = trim( $smtp->getLastReply() );
+                        $smtp->reset();
+                        /* translators: 1: recipient email address, 2: the SMTP server's reply. */
+                        return $prefix . sprintf( __( 'The server would not deliver to %1$s. Server reply: %2$s', 'bcs-smtp-manager' ), $to, $reply ? $reply : __( 'no response', 'bcs-smtp-manager' ) );
+                }
+                $smtp->reset();
+                return '';
+        }
+
+        /** @return \PHPMailer\PHPMailer\PHPMailer|null A fresh, exception-throwing PHPMailer instance. */
+        private function create_phpmailer() {
+                if ( ! class_exists( '\PHPMailer\PHPMailer\PHPMailer' ) && file_exists( ABSPATH . WPINC . '/PHPMailer/PHPMailer.php' ) ) {
+                        require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
+                        require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
+                        require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
+                }
+                return class_exists( '\PHPMailer\PHPMailer\PHPMailer' ) ? new \PHPMailer\PHPMailer\PHPMailer( true ) : null;
+        }
+
         /* ─────────────────────────────────────────────────────────────────── */
         /* Manual Test Email Send                                               */
@@ -711 +943 @@
 
                 $headers = array( 'Content-Type: text/html; charset=UTF-8' );
+
+                // Fail fast with the real reason instead of PHPMailer's generic "Could not authenticate."
+                if ( get_option( 'bcs_smtp_enabled' ) && get_option( 'bcs_smtp_auth' ) && $this->is_password_unreadable() ) {
+                        return array(
+                                'success'      => false,
+                                'error_msg'    => $this->unreadable_password_message(),
+                                'failure_type' => 'auth_failure',
+                                'smtp_host'    => $info['host'],
+                                'smtp_port'    => $info['port'],
+                                'mailbox'      => $info['mailbox'],
+                                'source_ip'    => $this->get_source_ip(),
+                        );
+                }
 
                 $captured_error = '';
@@ -745 +990 @@
                 }
 
+                $error_msg = $captured_error ? $this->describe_failure( $captured_error ) : 'wp_mail() returned false — no additional error details.';
                 return array(
                         'success'      => false,
-                        'error_msg'    => $captured_error ?: 'wp_mail() returned false — no additional error details.',
-                        'failure_type' => $this->classify_failure( $captured_error ),
+                        'error_msg'    => $error_msg,
+                        'failure_type' => $this->classify_failure( $error_msg ),
                         'smtp_host'    => $info['host'],
                         'smtp_port'    => $info['port'],
@@ -797 +1043 @@
 
         private function build_test_email_html( $site_name, $site_url, $timestamp, $info, $to ) {
-                return BCS_SMTP_Email_Template::wrapper_open( 'SMTP Test', 580, 14, '.08' ) . '
-  <!-- Header — bgcolor attr = Outlook fallback; background-color = Yahoo/other fallback; background-image = gradient for supporting clients -->
-  <tr><td bgcolor="#10b981" style="background-color:#10b981;background-image:linear-gradient(135deg,#10b981 0%,#059669 100%);padding:36px 40px;text-align:center">
-    <!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td align="center"><![endif]-->
-    <div style="width:56px;height:56px;background:#34d399;border-radius:50%;margin:0 auto 16px">
-      <span style="font-size:28px;line-height:56px;display:block;text-align:center">✓</span>
-    </div>
-    <!--[if mso]></td></tr></table><![endif]-->
-    <h1 style="margin:0;font-size:24px;font-weight:700;color:#ffffff;letter-spacing:-0.3px">Email Delivery Working</h1>
-    <p style="margin:8px 0 0;font-size:14px;color:#d1fae5">Your SMTP configuration is set up correctly</p>
-  </td></tr>
-
-  <!-- Body -->
-  <tr><td style="padding:36px 40px">
-    <p style="margin:0 0 24px;font-size:15px;color:#374151;line-height:1.6">
-      This is a test email from <strong>' . esc_html( $site_name ) . '</strong> to confirm that email delivery is working as expected through ByteCoreStack SMTP.
-    </p>
-
-    <!-- Info grid -->
-    <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden;margin-bottom:24px">
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;width:38%;background:#f1f5f9">Recipient</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b;font-family:monospace">' . esc_html( $to ) . '</td>
-      </tr>
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">SMTP Host</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b;font-family:monospace">' . esc_html( $info['host'] ?: 'PHP mail()' ) . ( $info['port'] ? ':' . esc_html( $info['port'] ) : '' ) . '</td>
-      </tr>
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">Plugin</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b">' . esc_html( $info['plugin'] ) . '</td>
-      </tr>
-      <tr>
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">Sent At</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b">' . esc_html( $timestamp ) . '</td>
-      </tr>
-    </table>
-
-    <div style="background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:14px 18px;margin-bottom:0">
-      <p style="margin:0;font-size:13px;color:#15803d;line-height:1.5">
-        <strong>All good!</strong> If you received this email, your WordPress site can send emails successfully. Check the Email Log tab in ByteCoreStack SMTP for delivery history.
-      </p>
-    </div>
-  </td></tr>
-
-  <!-- Footer -->
-  <tr><td style="padding:20px 40px 28px;border-top:1px solid #f1f5f9;text-align:center">
-    ' . BCS_SMTP_Email_Template::brand_footer_line( $site_url, $site_name ) . '
-  </td></tr>
-' . BCS_SMTP_Email_Template::wrapper_close();
+                $T      = 'BCS_SMTP_Email_Template';
+                $server = $info['host'] ? $info['host'] . ( $info['port'] ? ':' . $info['port'] : '' ) : __( 'PHP mail() — no SMTP server', 'bcs-smtp-manager' );
+
+                $body = '
+      <tr><td class="bcs-pad" style="padding:36px 40px 0">
+        ' . $T::pill( __( 'Delivered', 'bcs-smtp-manager' ), 'ok' ) . '
+        <h1 class="bcs-ink bcs-h1" style="margin:18px 0 10px;font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.4px;color:#0f172a">' . esc_html__( 'Your site can send email', 'bcs-smtp-manager' ) . '</h1>
+        <p class="bcs-ink2" style="margin:0;font-size:15px;line-height:1.65;color:#475569">' .
+                        /* translators: %s: site name. */
+                        esc_html( sprintf( __( '%s sent this message through your mail server. Contact forms, password resets and every other WordPress email go out the same way.', 'bcs-smtp-manager' ), $site_name ) ) . '</p>
+      </td></tr>
+      <tr><td class="bcs-pad" style="padding:26px 40px 0">
+        ' . $T::details( array(
+                        array( __( 'Sent to', 'bcs-smtp-manager' ), $to, true ),
+                        array( __( 'Mail server', 'bcs-smtp-manager' ), $server, true ),
+                        array( __( 'Sent by', 'bcs-smtp-manager' ), $info['plugin'] ),
+                        array( __( 'Time', 'bcs-smtp-manager' ), $timestamp ),
+                ) ) . '
+      </td></tr>
+      <tr><td class="bcs-pad" style="padding:28px 40px 36px">
+        ' . $T::button( $T::settings_url( 'email-log' ), __( 'Open the email log', 'bcs-smtp-manager' ) ) . '
+      </td></tr>';
+
+                return $T::document( array(
+                        'title'     => __( 'Test email', 'bcs-smtp-manager' ),
+                        /* translators: %s: site name. */
+                        'preheader' => sprintf( __( 'Good news: %s can send email. This test arrived through your mail server.', 'bcs-smtp-manager' ), $site_name ),
+                        'label'     => __( 'Test email', 'bcs-smtp-manager' ),
+                        'body'      => $body,
+                        'footer'    => $T::footer( $T::settings_url( 'connection' ), __( 'Connection settings', 'bcs-smtp-manager' ) ),
+                ) );
         }
 
@@ -862 +1089 @@
                 }
                 // Loopback or missing SERVER_ADDR — try external lookup (e.g. local dev / Docker).
+                // Cached for a day so health checks every 15 minutes don't each make a request.
+                $cached = get_transient( 'bcs_smtp_source_ip' );
+                if ( false !== $cached ) {
+                        return $cached;
+                }
+                $ip       = 'unknown';
                 $response = wp_remote_get( 'https://api.ipify.org', array( 'timeout' => 5 ) );
                 if ( ! is_wp_error( $response ) ) {
-                        $ip = trim( wp_remote_retrieve_body( $response ) );
-                        if ( filter_var( $ip, FILTER_VALIDATE_IP ) ) { return $ip; }
-                }
-                return 'unknown';
+                        $body = trim( wp_remote_retrieve_body( $response ) );
+                        if ( filter_var( $body, FILTER_VALIDATE_IP ) ) { $ip = $body; }
+                }
+                set_transient( 'bcs_smtp_source_ip', $ip, DAY_IN_SECONDS );
+                return $ip;
         }
 }

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-monitor.php

@@ -44 +44 @@
 
         private function get_interval_minutes() {
-                $mins = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-                return max( 1, min( 1440, $mins ) );
+                return (int) BCS_SMTP_CHECK_INTERVAL_MINUTES;
+        }
+
+        /**
+         * Health checks run whenever the plugin is sending through a configured SMTP server.
+         *
+         * @return bool
+         */
+        public static function is_active() {
+                return (bool) get_option( 'bcs_smtp_enabled', false ) && '' !== trim( (string) get_option( 'bcs_smtp_host', '' ) );
+        }
+
+        /**
+         * Channels that receive failure alerts. Older versions stored a single channel as a string.
+         *
+         * @return string[]
+         */
+        public static function get_channels() {
+                $saved = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, array() );
+                $saved = is_array( $saved ) ? $saved : array( $saved );
+                return array_values( array_intersect( array_keys( self::channel_labels() ), $saved ) );
+        }
+
+        /**
+         * @return array Channel key => display name.
+         */
+        public static function channel_labels() {
+                return array(
+                        'slack'       => __( 'Slack', 'bcs-smtp-manager' ),
+                        'teams'       => __( 'Microsoft Teams', 'bcs-smtp-manager' ),
+                        'google_chat' => __( 'Google Chat', 'bcs-smtp-manager' ),
+                        'discord'     => __( 'Discord', 'bcs-smtp-manager' ),
+                        'custom'      => __( 'Custom webhook', 'bcs-smtp-manager' ),
+                );
+        }
+
+        /**
+         * Human list of the given channels, e.g. "Slack and Discord".
+         *
+         * @param  string[] $channels
+         * @return string
+         */
+        public static function channel_list_label( $channels ) {
+                $labels = self::channel_labels();
+                $names  = array();
+                foreach ( $channels as $ch ) {
+                        if ( isset( $labels[ $ch ] ) ) {
+                                $names[] = $labels[ $ch ];
+                        }
+                }
+                return wp_sprintf_l( '%l', $names );
+        }
+
+        /**
+         * Book the next scheduled check one interval after a check that just ran. Every place that
+         * records a check calls this (cron runs late, and manual checks happen any time), so
+         * "last check" and "next check" always add up to the interval.
+         */
+        public function schedule_next_check() {
+                wp_clear_scheduled_hook( 'bcs_smtp_health_check' );
+                if ( self::is_active() ) {
+                        wp_schedule_event( time() + $this->get_interval_minutes() * 60, 'bcs_smtp_monitor', 'bcs_smtp_health_check' );
+                }
         }
 
         public function maybe_schedule_event() {
-                $enabled = get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false );
+                $enabled = self::is_active();
                 $next    = wp_next_scheduled( 'bcs_smtp_health_check' );
 
@@ -64 +125 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function run_health_check() {
-                if ( ! get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false ) ) {
-                        return;
+        /**
+         * @param  bool $force True for a manual "Run Health Check Now" — runs even when scheduled
+         *                     monitoring is off or a cron check holds the lock.
+         * @return array|null  The connection-test result, or null when the check was skipped.
+         */
+        public function run_health_check( $force = false ) {
+                if ( ! $force && ! self::is_active() ) {
+                        return null;
                 }
 
                 // Prevent concurrent runs (WP-Cron + manual AJAX can overlap).
-                if ( get_transient( 'bcs_smtp_check_lock' ) ) {
-                        return;
+                if ( ! $force && get_transient( 'bcs_smtp_check_lock' ) ) {
+                        return null;
                 }
                 $mins = $this->get_interval_minutes();
@@ -81 +147 @@
                 update_option( BCS_SMTP_OPT_LAST_CHECK, time() );
                 update_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, $result['success'] );
+                $this->schedule_next_check();
 
                 if ( $result['success'] ) {
@@ -89 +156 @@
 
                 delete_transient( 'bcs_smtp_check_lock' );
+                return $result;
         }
 
@@ -104 +172 @@
                 update_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, $failures );
 
-                $threshold = (int) get_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, 2 );
+                $threshold = (int) BCS_SMTP_FAILURE_THRESHOLD;
 
                 if ( $failures >= $threshold ) {
@@ -149 +217 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function send_alert( $result, $failures, $external_down = false ) {
+        /**
+         * Dispatch a failure alert to every selected channel.
+         *
+         * @param  array $result
+         * @param  int   $failures
+         * @param  bool  $external_down
+         * @param  bool  $is_test True for "Send test alert": ignores the one-per-outage limit and doesn't count toward it.
+         * @return array|\WP_Error Channel key => true or WP_Error, or a WP_Error when nothing was attempted.
+         */
+        public function send_alert( $result, $failures, $external_down = false, $is_test = false ) {
                 if ( ! get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false ) ) {
-                        return;
-                }
-
-                $channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-                if ( 'none' === $channel ) {
-                        return;
-                }
-
-                // Respect the max notification cap (0 = unlimited).
-                $max_count  = (int) get_option( BCS_SMTP_OPT_MAX_ALERT_COUNT, 0 );
+                        return new \WP_Error( 'bcs_alert_disabled', __( 'Failure alerts are turned off.', 'bcs-smtp-manager' ) );
+                }
+
+                $channels = self::get_channels();
+                if ( ! $channels ) {
+                        return new \WP_Error( 'bcs_alert_no_channel', __( 'No alert channel selected.', 'bcs-smtp-manager' ) );
+                }
+
+                // One alert per outage; the counter resets when a check passes again.
+                $max_count  = (int) BCS_SMTP_MAX_ALERTS_PER_OUTAGE;
                 $sent_count = (int) get_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, 0 );
-                if ( $max_count > 0 && $sent_count >= $max_count ) {
-                        return;
-                }
-
-                $payload = $this->build_alert_payload( $result, $failures, $external_down );
-
-                switch ( $channel ) {
-                        case 'slack':
-                                $this->send_slack( $payload );
-                                break;
-                        case 'teams':
-                                $this->send_teams( $payload );
-                                break;
-                        case 'google_chat':
-                                $this->send_google_chat( $payload );
-                                break;
-                        case 'discord':
-                                $this->send_discord( $payload );
-                                break;
-                        case 'custom':
-                                $this->send_custom_webhook( $payload );
-                                break;
-                }
-
-                update_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, $sent_count + 1 );
+                if ( ! $is_test && $max_count > 0 && $sent_count >= $max_count ) {
+                        return new \WP_Error( 'bcs_alert_capped', __( 'Notification limit reached for this failure cycle.', 'bcs-smtp-manager' ) );
+                }
+
+                $payload = $this->build_alert_payload( $result, $failures, $external_down, $is_test );
+                $senders = array(
+                        'slack'       => 'send_slack',
+                        'teams'       => 'send_teams',
+                        'google_chat' => 'send_google_chat',
+                        'discord'     => 'send_discord',
+                        'custom'      => 'send_custom_webhook',
+                );
+
+                $results   = array();
+                $delivered = false;
+                foreach ( $channels as $channel ) {
+                        $results[ $channel ] = $this->{ $senders[ $channel ] }( $payload );
+                        $delivered           = $delivered || true === $results[ $channel ];
+                }
+
+                // Only a delivered alert counts toward the limit, so a webhook outage doesn't use it up.
+                if ( $delivered && ! $is_test ) {
+                        update_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, $sent_count + 1 );
+                }
+                return $results;
+        }
+
+        /**
+         * POST a JSON body to a webhook and turn the response into true or a descriptive WP_Error.
+         *
+         * @param  string $webhook
+         * @param  array  $body
+         * @return true|\WP_Error
+         */
+        private function post_webhook( $webhook, $body ) {
+                $response = wp_safe_remote_post( $webhook, array(
+                        'body'    => wp_json_encode( $body ),
+                        'headers' => array( 'Content-Type' => 'application/json' ),
+                        'timeout' => 10,
+                ) );
+                if ( is_wp_error( $response ) ) {
+                        /* translators: %s: transport error message. */
+                        return new \WP_Error( 'bcs_alert_transport', sprintf( __( 'Webhook request failed: %s', 'bcs-smtp-manager' ), $response->get_error_message() ) );
+                }
+                $code = (int) wp_remote_retrieve_response_code( $response );
+                if ( $code < 200 || $code >= 300 ) {
+                        $detail = trim( wp_strip_all_tags( (string) wp_remote_retrieve_body( $response ) ) );
+                        /* translators: 1: HTTP status code, 2: response body excerpt. */
+                        return new \WP_Error( 'bcs_alert_http', sprintf( __( 'Webhook returned HTTP %1$d. %2$s', 'bcs-smtp-manager' ), $code, mb_substr( $detail, 0, 200 ) ) );
+                }
+                return true;
+        }
+
+        /** @return \WP_Error For a channel whose webhook URL is missing or not on the provider's domain. */
+        private function missing_webhook_error( $label ) {
+                /* translators: %s: channel name, e.g. Slack. */
+                return new \WP_Error( 'bcs_alert_no_url', sprintf( __( 'No valid %s webhook URL is saved — enter it in the Alerts tab and click Save Alert Settings.', 'bcs-smtp-manager' ), $label ) );
         }
 
@@ -213 +322 @@
                 if ( 'teams' === $channel ) {
                         // Microsoft has used several domains for Incoming Webhooks / Workflows over time.
-                        foreach ( array( 'webhook.office.com', 'office.com', 'logic.azure.com' ) as $suffix ) {
+                        foreach ( array( 'webhook.office.com', 'office.com', 'logic.azure.com', 'api.powerplatform.com' ) as $suffix ) {
                                 if ( $host === $suffix || ( strlen( $host ) > strlen( $suffix ) + 1 && '.' . $suffix === substr( $host, -( strlen( $suffix ) + 1 ) ) ) ) {
                                         return true;
@@ -250 +359 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function build_alert_payload( $result, $failures, $external_down = false ) {
+        /**
+         * Everything an alert needs, in one place. The chat channels all show the same message
+         * (title, explanation, fields, link); the custom webhook keeps its machine-readable keys.
+         *
+         * @param  array $result        Connection-test result.
+         * @param  int   $failures      Consecutive failed checks.
+         * @param  bool  $external_down True when the provider's status page reports a problem.
+         * @param  bool  $is_test       True for "Send test alert".
+         * @return array
+         */
+        public function build_alert_payload( $result, $failures, $external_down = false, $is_test = false ) {
                 $info       = $this->mailer->detect_smtp_plugin();
                 $site_name  = get_bloginfo( 'name' );
                 $site_url   = get_bloginfo( 'url' );
-                $timestamp  = current_time( 'M j, Y \a\t g:i A' );
-                $fail_label = $this->mailer->label_failure_type( isset( $result['failure_type'] ) ? $result['failure_type'] : '' );
-                $ext_note   = $external_down ? ' (External SMTP service may be down — check provider status.)' : '';
+                $type       = isset( $result['failure_type'] ) ? $result['failure_type'] : '';
+                $mailbox    = isset( $result['mailbox'] ) ? $result['mailbox'] : $info['mailbox'];
+                $smtp_host  = isset( $result['smtp_host'] ) ? $result['smtp_host'] : $info['host'];
+                $smtp_port  = isset( $result['smtp_port'] ) ? $result['smtp_port'] : $info['port'];
+                $error_msg  = isset( $result['error_msg'] ) ? $result['error_msg'] : __( 'No details available.', 'bcs-smtp-manager' );
+                $when       = wp_date( get_option( 'date_format', 'M j, Y' ) . ' ' . get_option( 'time_format', 'g:i a' ) );
+                $server     = $smtp_host ? $smtp_host . ( $smtp_port ? ':' . $smtp_port : '' ) : __( 'Not set', 'bcs-smtp-manager' );
+
+                if ( $is_test ) {
+                        /* translators: %s: site name. */
+                        $title   = sprintf( __( 'Test alert from %s', 'bcs-smtp-manager' ), $site_name );
+                        $summary = __( 'Your email alerts are working. If email stops sending on this site, an alert like this one will arrive here. No action needed.', 'bcs-smtp-manager' );
+                        $fields  = array(
+                                __( 'Mail server', 'bcs-smtp-manager' ) => $server,
+                                __( 'Sending as', 'bcs-smtp-manager' )  => $mailbox,
+                                __( 'Sent', 'bcs-smtp-manager' )        => $when,
+                        );
+                } else {
+                        /* translators: %s: site name. */
+                        $title   = sprintf( __( 'Email is failing on %s', 'bcs-smtp-manager' ), $site_name );
+                        $summary = __( 'WordPress can’t send email through your mail server, so emails from your site may not arrive. Check the error below.', 'bcs-smtp-manager' );
+                        $fields  = array(
+                                __( 'Problem', 'bcs-smtp-manager' )     => $this->problem_label( $type ),
+                                __( 'Error', 'bcs-smtp-manager' )       => $error_msg,
+                                __( 'Mail server', 'bcs-smtp-manager' ) => $server,
+                                __( 'Sending as', 'bcs-smtp-manager' )  => $mailbox,
+                                __( 'Detected', 'bcs-smtp-manager' )    => $when,
+                        );
+                }
 
                 return array(
-                        'site_name'     => $site_name,
-                        'site_url'      => $site_url,
-                        'timestamp'     => $timestamp,
-                        'mailbox'       => isset( $result['mailbox'] )   ? $result['mailbox']   : $info['mailbox'],
-                        'smtp_host'     => isset( $result['smtp_host'] ) ? $result['smtp_host'] : $info['host'],
-                        'smtp_port'     => isset( $result['smtp_port'] ) ? $result['smtp_port'] : $info['port'],
-                        'plugin'        => $info['plugin'],
-                        'error_msg'     => isset( $result['error_msg'] ) ? $result['error_msg'] : 'No details available.',
-                        'failure_type'  => $fail_label,
-                        'source_ip'     => isset( $result['source_ip'] ) ? $result['source_ip'] : '—',
-                        'failures'      => $failures,
-                        'external_down' => $external_down,
-                        'ext_note'      => $ext_note,
-                );
+                        // Shared message for the chat channels.
+                        'is_test'        => $is_test,
+                        'title'          => $title,
+                        'summary'        => $summary,
+                        'fields'         => $fields,
+                        'note'           => $external_down ? __( 'Your email provider’s status page also reports a problem, so this may be an outage on their side.', 'bcs-smtp-manager' ) : '',
+                        'footer'         => sprintf( '%s · %s', $site_name, preg_replace( '#^https?://#', '', $site_url ) ),
+                        // Machine-readable values for the custom webhook (keys unchanged since 1.1).
+                        'site_name'      => $site_name,
+                        'site_url'       => $site_url,
+                        'timestamp'      => current_time( 'M j, Y \a\t g:i A' ),
+                        'mailbox'        => $mailbox,
+                        'smtp_host'      => $smtp_host,
+                        'smtp_port'      => $smtp_port,
+                        'plugin'         => $info['plugin'],
+                        'error_msg'      => $error_msg,
+                        'failure_type'   => $this->mailer->label_failure_type( $type ),
+                        'source_ip'      => isset( $result['source_ip'] ) ? $result['source_ip'] : '',
+                        'failures'       => $failures,
+                        'external_down'  => $external_down,
+                );
+        }
+
+        /**
+         * What went wrong, in plain words, for the Problem line of an alert.
+         *
+         * @param  string $type Failure type from the connection test.
+         * @return string
+         */
+        private function problem_label( $type ) {
+                $labels = array(
+                        'auth_failure'     => __( 'Sign-in failed: the username or password wasn’t accepted', 'bcs-smtp-manager' ),
+                        'smtp_rejection'   => __( 'The mail server rejected the email', 'bcs-smtp-manager' ),
+                        'plugin_failure'   => __( 'Couldn’t connect to the mail server', 'bcs-smtp-manager' ),
+                        'mail_unavailable' => __( 'PHP mail() isn’t available on this server', 'bcs-smtp-manager' ),
+                        'not_configured'   => __( 'SMTP isn’t set up yet', 'bcs-smtp-manager' ),
+                );
+                return isset( $labels[ $type ] ) ? $labels[ $type ] : __( 'Email couldn’t be sent', 'bcs-smtp-manager' );
+        }
+
+        /**
+         * Slack treats <, > and & as control characters in message text.
+         *
+         * @param  string $text
+         * @return string
+         */
+        private static function slack_escape( $text ) {
+                return str_replace( array( '&', '<', '>' ), array( '&amp;', '&lt;', '&gt;' ), (string) $text );
         }
 
@@ -282 +461 @@
                 $webhook = get_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'slack' ) ) {
-                        return;
-                }
-
-                $text = sprintf(
-                        ":rotating_light: *WordPress SMTP Alert — %s*\n" .
-                        ">*Time:* %s\n" .
-                        ">*Site:* <%s|%s>\n" .
-                        ">*Sending mailbox:* `%s`\n" .
-                        ">*SMTP host:* `%s:%s`\n" .
-                        ">*Plugin:* %s\n" .
-                        ">*Error:* %s\n" .
-                        ">*Failure type:* %s\n" .
-                        ">*Source IP:* %s\n" .
-                        ">*Consecutive failures:* %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'], $payload['site_name'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'text' => $text ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
+                        return $this->missing_webhook_error( 'Slack' );
+                }
+
+                $icon  = $payload['is_test'] ? '✅' : '🔴';
+                $lines = array();
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $lines[] = '*' . self::slack_escape( $label ) . ':* ' . self::slack_escape( $value );
+                }
+
+                $blocks = array(
+                        array( 'type' => 'header', 'text' => array( 'type' => 'plain_text', 'text' => $icon . ' ' . $payload['title'], 'emoji' => true ) ),
+                        array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => self::slack_escape( $payload['summary'] ) ) ),
+                        array( 'type' => 'divider' ),
+                        array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => implode( "\n", $lines ) ) ),
+                );
+                if ( $payload['note'] ) {
+                        $blocks[] = array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => '⚠️ ' . self::slack_escape( $payload['note'] ) ) );
+                }
+                $blocks[] = array( 'type' => 'context', 'elements' => array( array( 'type' => 'mrkdwn', 'text' => self::slack_escape( $payload['footer'] ) ) ) );
+
+                // "text" is the notification preview and the fallback for clients without blocks.
+                return $this->post_webhook( $webhook, array(
+                        'text'   => $icon . ' ' . $payload['title'],
+                        'blocks' => $blocks,
                 ) );
         }
@@ -323 +495 @@
                 $webhook = get_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'teams' ) ) {
-                        return;
-                }
-
-                $card = array(
-                        '@type'      => 'MessageCard',
-                        '@context'   => 'http://schema.org/extensions',
-                        'themeColor' => 'FF0000',
-                        'summary'    => 'WordPress SMTP Failure Alert',
-                        'sections'   => array(
+                        return $this->missing_webhook_error( 'Teams' );
+                }
+
+                // Adaptive Card in a message envelope — accepted by Power Automate "Workflows" webhooks
+                // (the replacement for the retired Office 365 connectors) and by legacy connector URLs alike.
+                $facts = array();
+                foreach ( $payload['fields'] as $title => $value ) {
+                        $facts[] = array( 'title' => (string) $title, 'value' => (string) $value );
+                }
+
+                $body = array(
+                        array(
+                                'type'   => 'TextBlock',
+                                'text'   => ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . $payload['title'],
+                                'weight' => 'Bolder',
+                                'size'   => 'Large',
+                                'color'  => $payload['is_test'] ? 'Good' : 'Attention',
+                                'wrap'   => true,
+                        ),
+                        array( 'type' => 'TextBlock', 'text' => $payload['summary'], 'wrap' => true, 'spacing' => 'Small' ),
+                        array( 'type' => 'FactSet', 'facts' => $facts, 'spacing' => 'Medium' ),
+                );
+                if ( $payload['note'] ) {
+                        $body[] = array( 'type' => 'TextBlock', 'text' => '⚠️ ' . $payload['note'], 'wrap' => true, 'color' => 'Warning' );
+                }
+                $body[] = array( 'type' => 'TextBlock', 'text' => $payload['footer'], 'isSubtle' => true, 'size' => 'Small', 'wrap' => true );
+
+                return $this->post_webhook( $webhook, array(
+                        'type'        => 'message',
+                        'attachments' => array(
                                 array(
-                                        'activityTitle'    => sprintf( '🚨 SMTP Failure — %s', $payload['site_name'] ),
-                                        'activitySubtitle' => $payload['timestamp'],
-                                        'facts'            => array(
-                                                array( 'name' => 'Site',                 'value' => $payload['site_url'] ),
-                                                array( 'name' => 'Sending Mailbox',      'value' => $payload['mailbox'] ),
-                                                array( 'name' => 'SMTP Host',            'value' => $payload['smtp_host'] . ':' . $payload['smtp_port'] ),
-                                                array( 'name' => 'Plugin Used',          'value' => $payload['plugin'] ),
-                                                array( 'name' => 'Error',                'value' => $payload['error_msg'] ),
-                                                array( 'name' => 'Failure Type',         'value' => $payload['failure_type'] ),
-                                                array( 'name' => 'Source IP',            'value' => $payload['source_ip'] ),
-                                                array( 'name' => 'Consecutive Failures', 'value' => (string) $payload['failures'] ),
+                                        'contentType' => 'application/vnd.microsoft.card.adaptive',
+                                        'contentUrl'  => null,
+                                        'content'     => array(
+                                                '$schema' => 'http://adaptivecards.io/schemas/adaptive-card.json',
+                                                'type'    => 'AdaptiveCard',
+                                                'version' => '1.4',
+                                                'msteams' => array( 'width' => 'Full' ),
+                                                'body'    => $body,
                                         ),
-                                        'markdown' => true,
                                 ),
                         ),
-                );
-
-                if ( $payload['external_down'] ) {
-                        $card['sections'][] = array(
-                                'text' => '⚠️ External SMTP service may be down — check your provider\'s status page before escalating.',
-                        );
-                }
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( $card ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
                 ) );
         }
@@ -370 +547 @@
                 $webhook = get_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'google_chat' ) ) {
-                        return;
-                }
-
-                $text = sprintf(
-                        "🚨 *WordPress SMTP Alert — %s*\n" .
-                        "*Time:* %s\n" .
-                        "*Site:* <%s|%s>\n" .
-                        "*Sending mailbox:* `%s`\n" .
-                        "*SMTP host:* `%s:%s`\n" .
-                        "*Plugin:* %s\n" .
-                        "*Error:* %s\n" .
-                        "*Failure type:* %s\n" .
-                        "*Source IP:* %s\n" .
-                        "*Consecutive failures:* %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'], $payload['site_name'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'text' => $text ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
-                ) );
+                        return $this->missing_webhook_error( 'Google Chat' );
+                }
+
+                $lines = array( ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . '*' . $payload['title'] . '*', $payload['summary'], '' );
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $lines[] = '*' . $label . ':* ' . $value;
+                }
+                if ( $payload['note'] ) {
+                        $lines[] = '';
+                        $lines[] = '⚠️ ' . $payload['note'];
+                }
+                $lines[] = '';
+                $lines[] = $payload['footer'];
+
+                return $this->post_webhook( $webhook, array( 'text' => implode( "\n", $lines ) ) );
         }
 
@@ -411 +571 @@
                 $webhook = get_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'discord' ) ) {
-                        return;
-                }
-
-                // Discord messages don't support Slack-style <url|text> link aliasing — the
-                // site URL is appended plainly so it still autolinks.
-                $content = sprintf(
-                        "🚨 **WordPress SMTP Alert — %s**\n" .
-                        "**Time:** %s\n" .
-                        "**Site:** %s\n" .
-                        "**Sending mailbox:** `%s`\n" .
-                        "**SMTP host:** `%s:%s`\n" .
-                        "**Plugin:** %s\n" .
-                        "**Error:** %s\n" .
-                        "**Failure type:** %s\n" .
-                        "**Source IP:** %s\n" .
-                        "**Consecutive failures:** %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'content' => $content ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
+                        return $this->missing_webhook_error( 'Discord' );
+                }
+
+                $fields = array();
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $fields[] = array( 'name' => (string) $label, 'value' => (string) $value, 'inline' => false );
+                }
+                $description = $payload['summary'] . ( $payload['note'] ? "\n\n⚠️ " . $payload['note'] : '' );
+
+                // An embed shows as a card with a coloured edge: red for a failure, green for a test.
+                return $this->post_webhook( $webhook, array(
+                        'embeds' => array(
+                                array(
+                                        'title'       => ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . $payload['title'],
+                                        'description' => $description,
+                                        'color'       => $payload['is_test'] ? 0x2EA44F : 0xE5484D,
+                                        'fields'      => $fields,
+                                        'footer'      => array( 'text' => $payload['footer'] ),
+                                ),
+                        ),
                 ) );
         }
@@ -459 +606 @@
                 $webhook = get_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'custom' ) ) {
-                        return;
+                        return $this->missing_webhook_error( 'custom' );
                 }
 
                 $body = array(
                         'event'                 => 'smtp_failure',
+                        'test'                  => $payload['is_test'],
                         'site_name'             => $payload['site_name'],
                         'site_url'              => $payload['site_url'],
@@ -478 +626 @@
                 );
 
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( $body ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
-                ) );
+                return $this->post_webhook( $webhook, $body );
         }
 }

bcs-smtp-manager/tags/1.3.0/includes/class-bcs-smtp-wp-cli.php

@@ -10 +10 @@
 
 /**
- * Manage ByteCoreStack SMTP email sending, resending, and the email log.
+ * Manage ByteCoreStack SMTP email sending and the email log.
  */
 class BCS_SMTP_WP_CLI_Command {
@@ -38 +38 @@
                 // registered the real mailer's wp_mail/phpmailer_init/wp_mail_failed hooks, which is what
                 // actually logs this send. Calling init_hooks() again on a second instance would register
-                // a duplicate set of hooks and log two rows per send (see resend() below for the same note).
+                // a duplicate set of hooks and log two rows per send.
                 $mailer = new BCS_SMTP_Mailer();
                 $result = $mailer->send_test_email( $to );
@@ -50 +50 @@
 
         /**
-         * Resend a previously logged, failed email using its stored content.
-         *
-         * Requires "Store failed email content" to have been enabled (Config tab)
-         * at the time the original email failed — otherwise no content was stored.
+         * List recent email log entries.
          *
          * ## OPTIONS
          *
-         * <log_id>
-         * : The email log entry ID to resend (see `wp bcs-smtp log list`).
-         *
-         * ## EXAMPLES
-         *
-         *     wp bcs-smtp resend 482
-         *
-         * @when after_wp_load
-         */
-        public function resend( $args ) {
-                $log_id = isset( $args[0] ) ? absint( $args[0] ) : 0;
-                if ( ! $log_id ) {
-                        WP_CLI::error( 'Please provide a log entry ID.' );
-                        return;
-                }
-
-                // No init_hooks() here either — see the note in test() above. resend_stored_email()
-                // only needs $db directly (to read/update the log row); the actual send is logged
-                // by the already-registered global mailer instance's hooks, same as any other wp_mail() call.
-                $db     = new BCS_SMTP_DB();
-                $mailer = new BCS_SMTP_Mailer( $db );
-                $result = $mailer->resend_stored_email( $log_id );
-
-                if ( $result['success'] ) {
-                        WP_CLI::success( $result['message'] );
-                } else {
-                        WP_CLI::error( $result['message'] );
-                }
-        }
-
-        /**
-         * List recent email log entries.
-         *
-         * ## OPTIONS
+         * [<action>]
+         * : What to do with the log.
+         * ---
+         * default: list
+         * options:
+         *   - list
+         * ---
          *
          * [--status=<status>]

bcs-smtp-manager/tags/1.3.0/readme.txt

@@ -1 +1 @@
 === ByteCoreStack - SMTP & Health Monitor ===
 Contributors: bytecorestack
-Tags: smtp, wordpress smtp, email log, smtp alerts, email monitoring
+Tags: smtp, email log, email, email alerts, email monitoring
 Requires at least: 5.3
-Tested up to: 7.0
+Tested up to: 7.1
 Requires PHP: 7.2
-Stable tag: 1.2.1
+Stable tag: 1.3.0
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
-The WordPress SMTP plugin that logs every email, monitors delivery health, and alerts you on Slack, Teams, Discord & Google Chat when it fails.
+Fix WordPress email with SMTP, log every email with its full message, and get Slack, Teams, Discord or Google Chat alerts when sending fails.
 
 == Description ==
 
-**Is your WordPress site silently failing to send emails?** Order confirmations, password resets, contact form notifications, shipping updates — when they don't land in the inbox, you're usually the last person to find out, often from an angry customer. ByteCoreStack - SMTP & Health Monitor fixes email deliverability at the source, logs every single send, and alerts your team the instant delivery breaks again — on Slack, Microsoft Teams, Google Chat, or Discord, at no extra cost.
-
-This plugin doesn't stop the moment your email starts sending again. It keeps going: continuous SMTP health monitoring, a fully searchable email log with CSV export, scheduled delivery reports, and real-time failure alerts, all included.
-
-= Why your WordPress emails are failing =
-
-By default, WordPress sends email through your server's PHP `mail()` function. PHP mail has no authentication — no SPF, no DKIM, nothing that proves to Gmail, Outlook, or Yahoo that the message is legitimate. Most inbox providers either bin it as spam or drop it outright. That's why "WordPress not sending email" is one of the most common WordPress problems there is, and why every serious site needs proper SMTP — authenticated, encrypted mail delivery through a real mail server or transactional email provider.
-
-= How this plugin fixes it =
-
-The plugin reconfigures `wp_mail()` to send through the authenticated SMTP server you configure — your hosting provider, Gmail, Microsoft 365, or any transactional email service (SendGrid, Mailgun, Amazon SES, Brevo, Zoho, SMTP.com, and others all work over standard SMTP). Every email is logged with its delivery status, and an automated health check keeps testing your connection in the background — so instead of finding out about a broken mail server from an angry customer, you find out from a Slack message.
-
-= ✅ Core features =
-
-* **Universal SMTP connection** — host, port, and encryption (SSL / TLS / none) for any standard SMTP provider, with auto-TLS upgrade support
-* **Built-in quick-reference for popular providers** — Gmail / Google Workspace, Microsoft 365 / Outlook, Yahoo Mail, SendGrid, Amazon SES, and Mailgun host/port/encryption settings, right inside the settings page
-* **Full email log** — date, subject, sender, recipient, delivery status, and the actual error message for every email `wp_mail()` sends
-* **AJAX-driven search and filtering** — live search-as-you-type plus date-range presets (today through all time), no page reloads
-* **Resend failed emails** — an opt-in setting stores the content of an email only if it fails, so you can resend it straight from the Email Log instead of it being a dead end. Off by default; stored content auto-purges after a configurable number of days
-* **CSV export** of the filtered log for record-keeping or support tickets
-* **One-click "Send Test Email"** to verify your configuration instantly, with failure-type classification (authentication failure, SMTP rejection, or plugin/system error) so you know exactly what's wrong
-* **Scheduled HTML delivery reports** — daily, weekly, or monthly summary emails with a visual chart of sent/failed/unconfirmed volume
-* **Automatic log retention** — keep the last 30 days or the last 1,000 records, pruned automatically
-* **WordPress Dashboard widget** — SMTP health and 30-day send volume at a glance, without opening the plugin's settings page
-* **WP-CLI support** — `wp bcs-smtp test`, `wp bcs-smtp resend <id>`, and `wp bcs-smtp log list` for scripting test sends, resends, and log lookups from the command line or a CI/deploy pipeline
-* **Encrypted password storage** — your SMTP password is encrypted at rest, not stored as plaintext
-* **Dark-mode admin UI** built for clarity, not just decoration
-
-= 🔔 Real-time failure alerts =
-
-Included at no extra cost:
-
-* **Automated SMTP health checks** via WordPress Cron — a real connection + EHLO + STARTTLS + AUTH test on the interval you choose, with no test email sent on success
-* **Five alert channels**: Slack, Microsoft Teams, Google Chat, Discord, and a Custom Webhook option that POSTs a structured JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures`, and more) for Zapier, Make, n8n, or your own endpoint
-* **Configurable failure threshold** — alert after 1 failure or wait for N consecutive failures, your choice
-* **Notification cap** so a prolonged outage doesn't spam your channel forever
-* **External provider status check** — when an alert fires, the plugin checks whether the failure looks like an outage on your provider's end before notifying you
-* All webhook URLs are validated against the provider's real domain and sent over `wp_safe_remote_post()`, so a misconfigured webhook can't be used to reach internal network addresses
-
-= 🔌 Works with everything that uses wp_mail() =
-
-WooCommerce, Contact Form 7, WPForms, Gravity Forms, Elementor Forms, user registration/password reset emails, and literally any other plugin or theme that sends mail through WordPress's standard `wp_mail()` function — because that's exactly what this plugin hooks into. Nothing to reconfigure on the form/store plugin side.
-
-= 🌐 Supported SMTP providers =
-
-Anything that speaks standard SMTP with host/port/username/password authentication works, because the plugin talks SMTP directly rather than locking you into a specific provider's proprietary API:
-
-* [Gmail / Google Workspace](https://myaccount.google.com/apppasswords) (App Passwords, or [Workspace SMTP relay](https://support.google.com/a/answer/2956491) for higher volume)
-* [Microsoft 365 / Outlook](https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365)
+**Is your WordPress site quietly failing to send email?** Order confirmations, password resets and contact form messages that never arrive usually go unnoticed until a customer complains. ByteCoreStack - SMTP & Health Monitor sends your WordPress email through a real, authenticated SMTP server, keeps a searchable log of every email with its full message, and tells your team on Slack, Microsoft Teams, Google Chat or Discord the moment sending breaks.
+
+= Why WordPress emails fail =
+
+Out of the box, WordPress sends email with PHP `mail()`. It has no authentication, so Gmail, Outlook and Yahoo often send those messages to spam or reject them, and many hosts disable it entirely. That's why "WordPress not sending email" is one of the most common WordPress problems. The fix is SMTP: sending through a real mail server that signs in, such as Gmail, Microsoft 365, your host's mail server or a transactional email service.
+
+= Set up in about a minute =
+
+1. Pick your provider. The server, port and encryption fill in for you, with sign-in tips for that provider.
+2. Enter your username and password (or app password / API key) and click **Save and test connection**. The plugin signs in to your server right away and tells you whether it worked.
+3. Send a test email to confirm a real message arrives.
+
+= Features =
+
+**Reliable sending**
+
+* Send all WordPress email through any SMTP server: SSL, TLS or no encryption, with automatic TLS upgrade
+* Ready-made settings for Gmail / Google Workspace, Microsoft 365 / Outlook, SendGrid, Amazon SES, Mailgun, Brevo, Zoho Mail and Yahoo Mail, plus any other SMTP server
+* Test email with a plain explanation when it fails: sign-in failed, rejected by the server, or couldn't connect, along with the server's own reply
+* SMTP password encrypted at rest
+
+**Email log**
+
+* Every email WordPress sends, grouped by day, with its delivery status and the server's reason for any failure
+* Open any email on its own page: a safe preview of the message, its HTML source, a text version, every header and attachment names, with a phone-width preview to check mobile layout
+* Search, filter by status (with counts) and date range, and export to CSV
+* Keeps the last 90 days and removes older entries automatically
+
+**Health checks and failure alerts**
+
+* Automatic health check every 15 minutes once SMTP is set up: a real sign-in and sender check, with no email sent
+* Alerts to Slack, Microsoft Teams, Google Chat, Discord and a custom webhook (for Zapier, Make or n8n), as many at once as you like
+* An alert on the first failed check, and one alert per outage, so a long outage never floods your channel
+* Checks whether Microsoft 365 reports an outage before alerting, when you send through Microsoft 365
+
+**Reports**
+
+* Delivery chart and totals for the last 7, 30 or 90 days, with highlights such as your busiest day, failure-free days and how many people your email reached
+* Monthly summary email on the 1st of every month at 9:00, covering the previous month, sent to whoever you choose
+
+**Built for WordPress**
+
+* Overview screen showing whether mail is flowing, when the last and next checks run, and what's left to set up
+* Dashboard widget with SMTP health and 30-day totals
+* WP-CLI commands: `wp bcs-smtp test` and `wp bcs-smtp log list`
+* Dark, responsive admin that works on phones and tablets, with keyboard-accessible controls and bundled fonts (no external requests)
+
+= Works with any plugin that sends email =
+
+WooCommerce, Contact Form 7, WPForms, Gravity Forms, Elementor Forms, Easy Digital Downloads, membership and booking plugins, and WordPress's own password reset and new user emails all send through `wp_mail()`, so they use your SMTP connection automatically. There's nothing to change in those plugins.
+
+= Supported SMTP providers =
+
+Any provider that offers standard SMTP sign-in works:
+
+* [Gmail / Google Workspace](https://myaccount.google.com/apppasswords) (app password, or the [Workspace SMTP relay](https://support.google.com/a/answer/2956491) for higher volume)
+* [Microsoft 365 / Outlook](https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission)
 * [SendGrid](https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp)
+* [Amazon SES](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
 * [Mailgun](https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/)
-* [Amazon SES](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
 * [Brevo](https://help.brevo.com/hc/en-us/articles/209462765)
-* [Zoho Mail](https://www.zoho.com/mail/help/)
-* Yahoo Mail, SMTP.com, or your own hosting provider's mail server
-
-= 🆚 What sets this plugin apart =
-
-Getting your email sending again is only half the job. If the connection breaks next month — expired app password, host changed something, provider outage — you need to know before a customer tells you. ByteCoreStack - SMTP & Health Monitor treats failure alerting as core functionality, included for every user, because a delivery plugin that can't tell you when delivery breaks isn't finished doing its job.
-
-= Documentation & support =
-
-Full plugin details: [bytecorestack.com/plugins/smtp-manager](https://bytecorestack.com/plugins/smtp-manager/). For SMTP protocol background, see the [WordPress wp_mail() developer reference](https://developer.wordpress.org/reference/functions/wp_mail/).
+* [Zoho Mail](https://www.zoho.com/mail/help/zoho-smtp.html)
+* [Yahoo Mail](https://help.yahoo.com/kb/SLN15241.html), SMTP.com, or your web host's mail server
+
+= Privacy =
+
+Everything the plugin stores stays in your own WordPress database: your SMTP settings, and the email log (each email's date, subject, sender, recipients, delivery status, message body, headers and attachment file names). Attached files themselves are never copied. Log entries are deleted automatically after 90 days, only administrators can see them, and uninstalling the plugin removes all of its data. Nothing is sent to ByteCore Stack. See **External services** below for the services the plugin contacts.
+
+= Documentation and support =
+
+Plugin home page: [bytecorestack.com/plugins/smtp-manager](https://bytecorestack.com/plugins/smtp-manager/). For questions or bug reports, use the support forum on this plugin's WordPress.org page.
+
+= Credits =
+
+The admin screens use two fonts bundled with the plugin, both under the SIL Open Font License 1.1 (license files included in `assets/fonts`): [Outfit](https://github.com/Outfitio/Outfit-Fonts) and [Geist Mono](https://github.com/vercel/geist-font).
 
 == Installation ==
 
-1. Upload the `bcs-smtp-manager` folder to `/wp-content/plugins/`, or install directly from the WordPress Plugins screen.
-2. Activate the plugin through the **Plugins** menu in WordPress.
-3. Go to **Settings → SMTP Manager** and enter your SMTP host, port, encryption, and credentials (use the built-in provider quick-reference if you're not sure what to enter).
-4. Click **Save Settings** — the plugin runs a connection test immediately and tells you if it worked.
-5. Use **Send Test Email** to confirm an actual message is delivered end-to-end.
-6. Open the **Alerts** tab, enable a channel (Slack, Teams, Google Chat, Discord, or a custom webhook), and turn on automated health monitoring so you're notified the next time something breaks.
+1. In WordPress, go to **Plugins → Add New**, search for "ByteCoreStack SMTP" and click **Install Now**, or upload the `bcs-smtp-manager` folder to `/wp-content/plugins/`.
+2. Activate the plugin.
+3. Go to **Settings → SMTP Manager** and open the **Connection** tab. Pick your provider (Gmail, Microsoft 365, SendGrid, Amazon SES, Mailgun, Brevo, Zoho, Yahoo or another SMTP server).
+4. Enter your username and password (or app password / API key), then click **Save and test connection**.
+5. Click **Send test email** to confirm a real message arrives.
+6. Optional: open the **Alerts** tab and choose where failure alerts go, and turn on the monthly report on the **Reports** tab. Health checks start automatically.
 
 == Frequently Asked Questions ==
 
-= What is SMTP and why do I need it for WordPress? =
-SMTP (Simple Mail Transfer Protocol) is the standard, authenticated way to send email. WordPress's default `mail()` function has no authentication, which is why its messages are frequently marked as spam or rejected outright by Gmail, Outlook, and Yahoo. Routing through a real SMTP connection — your host, Gmail, Microsoft 365, or a transactional provider — fixes that.
-
-= Why isn't my WordPress site sending emails right now? =
-The most common causes are: your host has disabled the PHP `mail()` function, your SMTP credentials are wrong or expired (Gmail/Microsoft App Passwords expire or get revoked), the wrong port/encryption combination is selected, or your host blocks outbound SMTP ports entirely. Use **Send Test Email** in this plugin — it classifies the failure (authentication, rejection, or system error) so you know which of these it is instead of guessing.
-
-= Does this work with Gmail? =
-Yes. You must use a Gmail App Password — Google no longer allows regular account passwords for third-party SMTP clients. Enable 2-Step Verification on your Google account, then generate an App Password under [Security → App Passwords](https://myaccount.google.com/apppasswords).
-
-= Does this work with Outlook / Microsoft 365? =
-Yes. Use your Microsoft 365 account password or an app password. Set the host to `smtp.office365.com`, port `587`, encryption `TLS`. See Microsoft's [official SMTP relay setup guide](https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365) if you need app-specific credentials or hit a sending limit.
-
-= Does this work with Google Workspace (not just regular Gmail)? =
-Yes. Google Workspace also supports a [dedicated SMTP relay service](https://support.google.com/a/answer/2956491) for higher sending limits than a personal Gmail App Password allows — useful if you're sending a high volume of transactional email.
-
-= Does this work with SendGrid, Mailgun, Amazon SES, Brevo, or Zoho? =
-Yes — any provider that offers SMTP relay credentials works, since this plugin speaks standard SMTP rather than a provider-specific API. Grab your SMTP host/port/username/password from each provider's own setup docs:
-* [SendGrid SMTP setup](https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp)
-* [Mailgun SMTP setup](https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/)
-* [Amazon SES SMTP setup](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
-* [Brevo SMTP relay](https://help.brevo.com/hc/en-us/articles/209462765)
-* [Zoho Mail help center](https://www.zoho.com/mail/help/)
-
-= Does this work with WooCommerce? =
-Yes. WooCommerce order emails, and any other plugin that sends email through `wp_mail()`, automatically use the SMTP settings configured here — no separate configuration needed on the WooCommerce side.
-
-= Does this work with Contact Form 7, WPForms, Gravity Forms, or Elementor Forms? =
-Yes. Any plugin that uses the standard WordPress `wp_mail()` function routes through your configured SMTP settings automatically.
-
-= Can I use this for bulk email marketing or newsletters? =
-No. This plugin is built for transactional email — order confirmations, password resets, contact form notifications, account emails. For bulk marketing sends, use a dedicated service such as Mailchimp, Klaviyo, or Brevo's marketing product.
-
-= Can I switch from another SMTP plugin to this one? =
-Yes, and there's nothing destructive about it. Deactivate your current SMTP plugin (or leave it active and just enable this plugin's "Enable SMTP" toggle — whichever hooks `phpmailer_init` last wins), enter your SMTP credentials here, and send a test email to confirm. Nothing about switching SMTP plugins affects your site's actual email content or past history.
-
-= How does the free real-time alerting work? =
-Enable monitoring in the Alerts tab and pick a channel — Slack, Microsoft Teams, Google Chat, Discord, or a Custom Webhook. WordPress Cron then opens a real connection to your SMTP server at the interval you set (EHLO, STARTTLS, and AUTH are all tested, not just a TCP port check) with no email actually sent on a successful check. If it fails for as many consecutive checks as your configured threshold, an alert goes out immediately.
-
-= How do I set up Slack alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Slack, paste your Incoming Webhook URL, and save. Create the webhook at [api.slack.com/messaging/webhooks](https://api.slack.com/messaging/webhooks).
-
-= How do I set up Microsoft Teams alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Microsoft Teams, paste your Incoming Webhook URL, and save. Follow Microsoft's [official guide to adding an Incoming Webhook to a Teams channel](https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook) to create the URL.
-
-= How do I set up Google Chat alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Google Chat, paste your Incoming Webhook URL, and save. Follow Google's [official Chat webhooks quickstart](https://developers.google.com/workspace/chat/quickstart/webhooks) to create the URL from your Chat space's Apps & Integrations menu.
-
-= How do I set up Discord alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Discord, paste your Incoming Webhook URL, and save. Follow Discord's [official "Intro to Webhooks" guide](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks) to create the URL from your channel's Server Settings → Integrations → Webhooks.
-
-= How do I set up a custom webhook for Zapier, Make, or n8n? =
-In the Alerts tab, enable the Alert Channel toggle, select Custom Webhook, and paste the URL of your endpoint. Unlike the chat-app channels, this sends a structured JSON payload — `event`, `site_name`, `error_msg`, `consecutive_failures`, and more — built for automation tools to parse rather than for a human to read directly. Docs for the most common automation tools:
-* [Webhooks by Zapier](https://zapier.com/page/webhooks/) — trigger a Zap from this plugin's alert payload
-* [Make (Integromat) webhooks](https://www.make.com/en/help/tools/webhooks) — use a "Custom webhook" trigger module
-* [n8n Webhook node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.webhook/) — for self-hosted automation
-
-= Does this support multisite networks? =
-The plugin activates and works on individual sites within a multisite network, but there's currently no centralized network-wide settings screen — each site is configured independently.
-
-= How does log pruning work? =
-Log entries are pruned automatically once per day via WordPress Cron. Choose to keep either the last 30 days or the last 1,000 records — older entries beyond your choice are removed automatically so the table doesn't grow unbounded.
-
-= Can I resend a failed email? =
-Yes, if you've enabled "Store failed email content" in the Config tab first. This is off by default — email bodies are never stored otherwise, matching the plugin's normal metadata-only logging. When enabled, the content of an email is stored *only if it fails to send*, so a "Resend" button appears on that row in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content is auto-purged after the number of days you configure (default 7), independent of your overall log retention setting.
-
-= Can I send test emails, resend failed emails, or check the log from the command line? =
-Yes. The plugin includes WP-CLI support: `wp bcs-smtp test you@example.com` sends a test email, `wp bcs-smtp resend <id>` resends a failed email by its log ID (same requirements as the admin Resend button — "Store failed email content" must have been enabled when it failed), and `wp bcs-smtp log list` lists recent log entries with `--status`, `--days`, and `--format` options. Handy for CI/deploy pipelines or server automation.
+= Why is my WordPress site not sending emails? =
+
+The usual causes: your host has disabled PHP `mail()`, your SMTP password is wrong or has expired (Gmail and Microsoft app passwords can be revoked), the port and encryption don't match, or your host blocks outgoing SMTP ports. Send a test email from this plugin. It tells you which of these it is and shows the mail server's own reply.
+
+= What is SMTP and why do I need it? =
+
+SMTP is the standard, authenticated way to send email. WordPress's default PHP `mail()` doesn't sign in to anything, so its messages are often marked as spam or rejected. Sending through a real SMTP server (your host, Gmail, Microsoft 365 or a transactional email service) fixes that.
+
+= Does it work with Gmail? =
+
+Yes. Use a Gmail app password: Google no longer accepts your normal account password for SMTP. Turn on 2-Step Verification, then create an app password under [Security → App passwords](https://myaccount.google.com/apppasswords). Google Workspace accounts can also use the [SMTP relay service](https://support.google.com/a/answer/2956491) for higher sending limits.
+
+= Does it work with Microsoft 365 / Outlook? =
+
+Yes. Pick Microsoft 365 / Outlook and the server (`smtp.office365.com`, port 587, TLS) fills in. SMTP sign-in (SMTP AUTH) must be allowed for the mailbox in your Microsoft 365 admin center; see Microsoft's [authenticated SMTP guide](https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission).
+
+= Does it work with SendGrid, Mailgun, Amazon SES, Brevo or Zoho? =
+
+Yes. Any service that gives you SMTP credentials works. For Amazon SES, copy the SMTP endpoint for your region from the SES console, and use your SES SMTP credentials rather than your AWS access keys.
+
+= Does it work with WooCommerce, Contact Form 7, WPForms or Gravity Forms? =
+
+Yes. Any plugin that sends email through WordPress's `wp_mail()` function uses your SMTP connection automatically, with nothing to configure on their side.
+
+= Can I see the full content of an email that was sent? =
+
+Yes. Click **View** on any row of the Email log to open the email: a safe preview of the message, its HTML source, a plain-text version, every header and the names of any attachments. Failed emails also show the mail server's complete reply.
+
+= What does the email log store, and for how long? =
+
+Each entry keeps the date, subject, sender, recipients, delivery status, any error, the message body, headers and attachment file names (never the files themselves). Entries are deleted automatically after 90 days. Saved emails can include sensitive details such as password reset links or form submissions, so only administrators can view the log.
+
+= How do failure alerts work? =
+
+Health checks run automatically every 15 minutes once SMTP is set up. Each check signs in to your mail server and checks your sender address, without sending an email. If a check fails, one alert goes to every channel you picked on the Alerts tab. You won't get another until mail has recovered and broken again.
+
+= How do I set up Slack, Microsoft Teams, Google Chat or Discord alerts? =
+
+On the Alerts tab, turn on failure alerts, tick the channel and paste its incoming webhook URL. Each channel has a setup guide link next to its field:
+* [Slack incoming webhooks](https://api.slack.com/messaging/webhooks)
+* [Microsoft Teams incoming webhooks](https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook)
+* [Google Chat webhooks](https://developers.google.com/workspace/chat/quickstart/webhooks)
+* [Discord webhooks](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks)
+
+= Can I send alerts to Zapier, Make or n8n? =
+
+Yes. Use the custom webhook channel. It sends a JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures` and more) that automation tools can read: [Zapier webhooks](https://zapier.com/page/webhooks/), [Make webhooks](https://www.make.com/en/help/tools/webhooks), [n8n Webhook node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.webhook/).
+
+= When is the monthly report sent? =
+
+On the 1st of every month at 9:00 (your site's time zone), covering the whole previous month. "Send a report now" sends the current month so far.
+
+= Can I use it for newsletters or bulk email? =
+
+No. It's built for transactional email such as orders, password resets, form notifications and account emails. Use a dedicated email marketing service for newsletters.
+
+= Can I switch from another SMTP plugin? =
+
+Yes. Set up your connection here and send a test email, then deactivate the other SMTP plugin. Switching doesn't affect your emails or other plugins.
 
 = Is my SMTP password stored securely? =
-Yes. The password is encrypted at rest using a key derived from your WordPress installation's own salts before it's saved, not stored as plaintext.
-
-= Where are my SMTP credentials stored, and are they sent anywhere? =
-Credentials are stored in the WordPress options table (`wp_options`) on your own server using the standard `update_option()` API. They are never transmitted to ByteCore Stack or any third party — the only network connection your credentials are used for is the SMTP server you configured them for.
-
-= What external services does this plugin use? =
-See the "External Services" section below for a full breakdown — your SMTP server, and optionally whichever alert channel(s) you choose to enable.
-
-= I found a bug or have a feature request — where do I report it? =
-Use the Support forum on this plugin's WordPress.org page, or reach out via [bytecorestack.com](https://bytecorestack.com/).
-
-== External Services ==
-
-This plugin may contact the following external services. All connections are either user-initiated or require explicit configuration by the site administrator.
-
-**1. Your SMTP server (user-configured)**
-The plugin routes all WordPress emails through the SMTP server credentials you enter in Settings → SMTP Manager. The hostname, port, username, and password are provided entirely by you. No data is sent to any ByteCore Stack server.
-
-**2. Slack Incoming Webhooks (optional)**
-If you enable Slack alerts, the plugin will POST a JSON failure notification to the Slack Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Slack workspace and is created by you.
+
+Yes. It's encrypted before it's saved, using a random key the plugin creates for your site (or a `BCS_SMTP_CRYPTO_KEY` constant you can define in `wp-config.php`), and it's never sent anywhere except your own SMTP server.
+
+= Does it work on multisite? =
+
+Yes, on each site of a network. Each site is set up separately; there's no network-wide settings screen yet.
+
+= Can I use it from the command line? =
+
+Yes. `wp bcs-smtp test you@example.com` sends a test email, and `wp bcs-smtp log list` lists recent log entries, with `--status`, `--days` and `--format` options.
+
+== External services ==
+
+The plugin contacts the services below. None of them receive data from ByteCore Stack, and nothing is sent to ByteCore Stack.
+
+**1. Your SMTP server (set up by you)**
+All email WordPress sends goes through the SMTP server you enter on the Connection tab, using the credentials you provide. Health checks, run every 15 minutes once SMTP is set up, sign in to the same server without sending an email.
+
+**2. Slack (optional)**
+If you turn on Slack alerts, the plugin sends a failure notification (site name and address, time, the problem and the mail server's error, mail server and sending address) to the Slack incoming webhook URL you provide, only when a health check fails or you click "Send test alert".
 * Service: Slack Technologies, LLC
+* Terms of service: https://slack.com/terms-of-service
 * Privacy policy: https://slack.com/privacy-policy
-* Terms of service: https://slack.com/terms-of-service
-
-**3. Microsoft Teams Incoming Webhooks (optional)**
-If you enable Teams alerts, the plugin will POST a JSON failure notification to the Teams Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Teams channel and is created by you.
+
+**3. Microsoft Teams (optional)**
+If you turn on Teams alerts, the same notification is sent to the Teams webhook URL you provide, only when a health check fails or you click "Send test alert".
 * Service: Microsoft Corporation
+* Terms of service: https://www.microsoft.com/en-us/servicesagreement
 * Privacy policy: https://privacy.microsoft.com/en-us/privacystatement
+
+**4. Google Chat (optional)**
+If you turn on Google Chat alerts, the same notification is sent to the Google Chat webhook URL you provide, only when a health check fails or you click "Send test alert".
+* Service: Google LLC
+* Terms of service: https://policies.google.com/terms
+* Privacy policy: https://policies.google.com/privacy
+
+**5. Discord (optional)**
+If you turn on Discord alerts, the same notification is sent to the Discord webhook URL you provide, only when a health check fails or you click "Send test alert".
+* Service: Discord Inc.
+* Terms of service: https://discord.com/terms
+* Privacy policy: https://discord.com/privacy
+
+**6. Custom webhook (optional)**
+If you turn on the custom webhook, the notification is sent as JSON to the URL you provide (the same details, plus your server's IP address and the number of failed checks), only when a health check fails or you click "Send test alert". The URL is entirely your choice, such as Zapier, Make, n8n or your own server.
+
+**7. ipify (automatic, only on some servers)**
+The server's outgoing IP address is included in diagnostics and alerts. If your server doesn't report its own address (common on local, Docker or some proxied setups), the plugin asks the ipify public API for it, at most once a day. The request carries no site or email data; the reply is just an IP address.
+* Service: ipify
+* Website and terms: https://www.ipify.org/
+
+**8. Microsoft 365 service status (automatic, only for Microsoft 365)**
+When a health check fails and your SMTP server is Microsoft 365 / Outlook, the plugin reads Microsoft's public service status page to tell you whether Microsoft is reporting an outage. No site or email data is sent.
+* Service: Microsoft Corporation
 * Terms of service: https://www.microsoft.com/en-us/servicesagreement
-
-**4. Google Chat Incoming Webhooks (optional)**
-If you enable Google Chat alerts, the plugin will POST a JSON failure notification to the Google Chat Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Chat space and is created by you.
-* Service: Google LLC
-* Privacy policy: https://policies.google.com/privacy
-* Terms of service: https://policies.google.com/terms
-
-**5. Discord Incoming Webhooks (optional)**
-If you enable Discord alerts, the plugin will POST a JSON failure notification to the Discord Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Discord channel and is created by you.
-* Service: Discord Inc.
-* Privacy policy: https://discord.com/privacy
-* Terms of service: https://discord.com/terms
-
-**6. Custom Webhook (optional)**
-If you enable the Custom Webhook channel, the plugin will POST a structured JSON failure notification to the URL you provide when consecutive SMTP failures are detected. This URL is entirely user-supplied — point it at Zapier, Make, n8n, or your own server. No data is sent unless you configure this channel.
-
-**7. ipify.org (automatic, no configuration)**
-When determining the server's outbound IP address for connection diagnostics (used only if the server's own `SERVER_ADDR` is unavailable, e.g. in some local/Docker/proxy environments), the plugin makes a GET request to the ipify.org public IP-lookup API. No data is sent beyond the request itself; the response is just an IP address string.
-* Service: ipify (Randomize.io)
-* Privacy policy: https://www.ipify.org/
-
-**8. Microsoft 365 Service Status API (automatic, only when your configured SMTP host is Microsoft 365/Outlook)**
-When the automated SMTP health check (see "Real-time failure alerts") detects a connection failure and your configured SMTP host is `office365` or `outlook`, the plugin queries Microsoft's public service status API to check whether the failure is a known Microsoft-side outage before sending you an alert. No site or email data is sent — only an outbound GET request is made.
-* Service: Microsoft Corporation
 * Privacy policy: https://privacy.microsoft.com/en-us/privacystatement
 
-No data is collected, transmitted to, or processed by ByteCore Stack servers.
-
 == Screenshots ==
 
-1. Dashboard overview — SMTP authentication status and recent email log activity at a glance
-2. SMTP server connection panel — host, port, encryption, and credentials in one place
-3. Email log — full delivery history with search, status filters, and automatic log retention
-4. Email report — visual delivery chart with scheduled report configuration
-5. Send Test Email — verify your SMTP configuration and delivery instantly
-6. Alerts tab — enabling automated SMTP health monitoring
-7. Alert channel setup — Slack, Microsoft Teams, Google Chat, Discord, or a custom webhook
-8. SMTP configuration — encryption, authentication, and provider-specific settings
-9. A live failure alert delivered to a chat channel — real-time SMTP notification in action
-10. Email Log — a Resend button on a failed row
+1. Overview — whether mail is flowing, last and next health check, email activity chart and what's left to set up
+2. Connection — pick your provider and the server details fill in; send a test email right alongside
+3. Alerts — automatic health checks and failure alerts to Slack, Teams, Google Chat, Discord or a webhook
+4. Reports — delivery chart, totals, highlights and the monthly report email
+5. Email log — grouped by day, with status filters, counts and search; open any email to see the full message
+6. Email details — the full message as it was sent, with delivery status, recipients and headers
 
 == Changelog ==
+
+= 1.3.0 =
+**Redesigned admin.** A new Overview shows whether mail is flowing, which server and sender address are in use, when the last and next health checks run, where alerts go, a 7, 30 or 90-day activity chart, quick actions and what's left to set up. Tabs are now Overview, Connection, Alerts, Reports and Email log, and every screen works on phones and tablets.
+
+**One-minute setup.** Pick your provider (Gmail / Google Workspace, Microsoft 365, SendGrid, Amazon SES, Mailgun, Brevo, Zoho, Yahoo or any other SMTP server) and the server, port and encryption fill in, with sign-in tips for that provider. The password field is labelled for that provider (for example "App password" for Gmail). Testing sits right next to the connection form, and you're warned before leaving with unsaved changes.
+
+**View the full email.** Every email is now saved with its body, headers and attachment names for 90 days. Click **View** on any row of the Email log to open it on its own page: a safe preview, the HTML source, a text version, a phone-width preview, every header and the mail server's reply. Emails saved by 1.2.1's "store failed emails" option are kept and can be viewed too.
+
+**Email log.** Grouped by day (Today, Yesterday, then by date), with status filters that show counts, search, date ranges, 10 to 100 rows per page and CSV export. Rows stay short and easy to scan; the server's full reason for a failure is on the email's own page. The log keeps the last 90 days. If you're updating from a version that kept everything, older entries stay for 30 days after the update, and the Email log offers an export of all entries before they go.
+
+**Clearer alerts.** Every alert now opens with a plain title ("Email is failing on your site"), and says what's wrong in plain words. Slack, Teams and Discord get properly formatted cards, and test alerts say clearly that they're a test.
+
+**Alerts to several channels at once.** Pick any mix of Slack, Microsoft Teams, Google Chat, Discord and a custom webhook. Each one gets the alert, and "Send test alert" reports how each did. Webhook URLs are checked as you type.
+
+**Always-on health checks.** Checks run every 15 minutes once SMTP is set up, alert on the first failure and send one alert per outage. The interval, threshold and alert-limit settings are gone. The health check now also checks your sender address, so a server that accepts the connection but rejects your email is reported as failing.
+
+**Monthly report.** The report email now goes out on the 1st of every month at 9:00 (site time) and covers the whole previous month, instead of 24 hours after saving and drifting from there. Your daily or weekly report is switched to monthly when you update. "Send a report now" sends the current month so far. Recipients are entered as tags, the next send date is shown, and turning "Email me this report" off hides the report options.
+
+**Redesigned emails.** The test email and the monthly report have a cleaner layout that fits phones and supports dark mode. The report leads with a clear verdict and the delivery rate, then shows sent, failed and unconfirmed totals and a day-by-day chart for every day of the month, with a button to open the full report. The test email confirms which server and sender it went through and when.
+
+**Reports.** Delivery chart for 7, 30 or 90 days with totals and highlights: average per day, busiest day, failure-free days, longest failure-free run and how many people your email reached (not counting your own team). Charts are drawn by the plugin, so the bundled Chart.js library (about 200 KB) is no longer loaded.
+
+**Fixes** (including fixes prepared for 1.2.2, which wasn't released separately):
+* Fixed "Could not authenticate" errors when a security plugin rotates the WordPress salts (All-In-One Security, Solid Security, Sucuri) or the site moves: the SMTP password now uses its own encryption key, or a `BCS_SMTP_CRYPTO_KEY` constant in `wp-config.php`. Existing passwords are moved over automatically.
+* Fixed the health check reporting "healthy" when the password was empty, unreadable or not accepted.
+* Fixed a "translation loading was triggered too early" notice on WordPress 6.7 and later.
+* Errors now include the mail server's actual reply, such as Microsoft 365's `535 5.7.139` codes, and a blocked SMTP port times out after 20 seconds instead of hanging.
+* Microsoft Teams alerts are sent as Adaptive Cards and accept Teams Workflows (Power Automate) webhook URLs.
+* The "last check" and "next check" times always add up to the 15-minute interval.
+* Amazon SES no longer pre-fills a region: paste the SMTP endpoint for your own region.
+* CSV export now protects against spreadsheet formula injection: a subject or address starting with =, +, - or @ (which can come from a contact form) is exported as plain text.
+* Uninstalling on a multisite network now removes the plugin's data from every site, not just the main one.
+* A password saved by 1.0.0, which was stored as plain text, is encrypted when you update.
+
+**Removed.** The Settings tab, the opt-in "resend failed emails" feature and `wp bcs-smtp resend`.
+
+**Under the hood.** Bundled Outfit and Geist Mono fonts (no external requests), the outgoing IP lookup is cached for a day, the email log loads only the columns it shows, uninstalling also removes the plugin's temporary data, and the readme now documents every external service.
 
 = 1.2.1 =
@@ -234 +270 @@
 **Renamed** from "SMTP Manager – Email Logs, Monitoring & Alerts" to "ByteCoreStack - SMTP & Health Monitor" for a clearer, more distinctive plugin name. Display name only — the plugin slug (`bcs-smtp-manager`) and all your settings are unchanged.
 
-**Resend failed emails** — a new opt-in "Store failed email content" setting (Config tab, off by default) retains the body of an email only when it fails to send, so a "Resend" button now appears on failed rows in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content auto-purges after a configurable number of days (default 7), independently of your overall log retention setting. Successful and unconfirmed sends are never affected — this plugin's metadata-only logging is unchanged unless you explicitly enable this setting.
+**Resend failed emails** — a new opt-in "Store failed email content" setting (Config tab, off by default) retains the body of an email only when it fails to send, so a "Resend" button now appears on failed rows in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content auto-purges after a configurable number of days (default 7), independently of your overall log retention setting.
 
 **WP-CLI support** — `wp bcs-smtp test <email>`, `wp bcs-smtp resend <log_id>`, and `wp bcs-smtp log list` for scripted test sends, resends, and log lookups from the command line or a CI/deploy pipeline.
 
-**Directory compliance** — rewrote parts of the description and admin UI to remove comparative claims about other SMTP plugins, and confirmed the plugin's use of external services (SMTP server, alert webhooks, ipify.org, Microsoft 365 status API) is fully documented in the External Services section below, per WordPress.org directory guidelines.
-
-**Self-hosted admin fonts** — the admin UI no longer loads DM Sans/DM Mono from the Google Fonts CDN (`@import` in `admin.css`); it now uses the system font stack instead. Fixes a Plugin Check "offloaded content" error and removes an external request that was previously made on every visit to the settings page.
+**Directory compliance** — rewrote parts of the description and admin UI to remove comparative claims about other SMTP plugins, and documented the plugin's use of external services (SMTP server, alert webhooks, ipify.org, Microsoft 365 status API) in the External Services section, per WordPress.org directory guidelines.
+
+**Self-hosted admin fonts** — the admin UI no longer loads DM Sans/DM Mono from the Google Fonts CDN; it uses the system font stack instead. Fixes a Plugin Check "offloaded content" error and removes an external request made on every visit to the settings page.
 
 **Readme fix** — `Tested up to` now uses major.minor format (`7.0`) instead of including a patch version, per the WordPress.org readme spec.
 
-= 1.1.0 =
-**Renamed** from "SMTP Manager by ByteCore Stack" to "SMTP Manager – Email Logs, Monitoring & Alerts" — display name only, the plugin slug and all your settings are unchanged.
-
-**New alert channels** — Google Chat and Discord join Slack and Microsoft Teams, plus a Custom Webhook channel for Zapier/Make/n8n/your own endpoint. The Custom Webhook channel POSTs a structured JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures`, etc.) instead of a formatted chat message. All webhook URLs are validated against the provider's real domain and sent via `wp_safe_remote_post()`.
-
-**New WordPress Dashboard widget** — SMTP health status and a 30-day sent/failed/unconfirmed volume summary, visible without opening the plugin's settings page.
-
-**Admin UI redesign** — full-width layout, boxed/gradient header, cards split into header/body sections, icon tiles on stat boxes, a "Common SMTP Providers" quick-reference card, full mobile/tablet responsive pass (dropdowns, pagination, button widths, tab bar scrolling), a show/hide eye icon on the password field, and AJAX-driven Email Log filtering with a skeleton loading state.
-
-**Security**
-* The SMTP password is now encrypted at rest instead of stored in plaintext (existing installs migrate automatically on next save).
-* All alert webhook URLs are validated against the provider's real domain and sent via `wp_safe_remote_post()`, closing an SSRF vector where a malicious/misconfigured webhook URL could make the server POST to internal addresses.
-* Stopped storing full email message bodies and headers in the Email Log table — only delivery metadata is retained, matching what the UI has always claimed.
-* Added a 30-second rate limit to "Run Health Check Now" to match the other test/send actions.
-
-**Reliability**
-* Fixed a bug where the automated SMTP health check could report "healthy" after a bare EHLO even when the server's STARTTLS upgrade failed, TLS was selected but STARTTLS wasn't offered, or SMTP auth was never actually verified over an unencrypted connection.
-* Scheduled/manual delivery reports now report exactly which recipients succeeded and which failed, instead of one pass/fail flag for the whole batch.
-
-**Performance**: composite database index on (status, sent_at) for the common Email Log filter combination; CSV export capped at 50,000 rows.
-
-**Compatibility**: bumped minimum WordPress version to 5.3 (`wp_timezone_string()`/`wp_date()` require it — the plugin previously declared 5.0 but used functions that didn't exist yet).
-
-**Accessibility & i18n**: AJAX status messages use `role="status" aria-live="polite"`; nearly every user-facing string is now wrapped for translation (previously ~2 out of hundreds, despite declaring a text domain).
-
-= 1.0.0 =
-* Initial release.
+Older versions are listed in changelog.txt, included with the plugin.
 
 == Upgrade Notice ==
+
+= 1.3.0 =
+Redesigned admin, full email viewer, multi-channel alerts and automatic health checks. Your settings and email log are kept. The log now keeps 90 days: older entries stay for 30 days after updating so you can export them.
 
 = 1.2.1 =
 First update since 1.1.0. Renamed to "ByteCoreStack - SMTP & Health Monitor" (slug and settings unchanged), adds opt-in "Resend failed emails" and WP-CLI support (`wp bcs-smtp test|resend|log`). No settings change automatically.
-
-= 1.1.0 =
-Major update: full admin UI redesign, renamed to "SMTP Manager – Email Logs, Monitoring & Alerts" (slug unchanged), 3 new alert channels (Google Chat, Discord, Custom Webhook), a Dashboard widget, password encryption, and SSRF-hardened webhooks. Settings migrate automatically.
-
-= 1.0.0 =
-Initial release.

bcs-smtp-manager/tags/1.3.0/uninstall.php

@@ -1 +1 @@
 <?php
 /**
- * Fired when the plugin is uninstalled — removes all data.
+ * Fired when the plugin is uninstalled — removes all data, on every site of a network.
  *
  * @package BCS_SMTP_Manager
@@ -10 +10 @@
 }
 
-// Unschedule cron
-$bcs_smtp_timestamp = wp_next_scheduled( 'bcs_smtp_health_check' );
-if ( $bcs_smtp_timestamp ) {
-        wp_unschedule_event( $bcs_smtp_timestamp, 'bcs_smtp_health_check' );
+/**
+ * Remove the plugin's scheduled events, tables, options and temporary values from the current site.
+ */
+function bcs_smtp_uninstall_site() {
+        global $wpdb;
+
+        // Unschedule cron
+        foreach ( array( 'bcs_smtp_health_check', 'bcs_smtp_prune_log', 'bcs_smtp_send_report' ) as $bcs_smtp_hook ) {
+                wp_clear_scheduled_hook( $bcs_smtp_hook );
+        }
+
+        // Drop custom tables
+        // phpcs:disable WordPress.DB.PreparedSQL.NotPrepared,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,PluginCheck.Security.DirectDB.UnescapedDBParameter -- uninstall routine; table names are hardcoded plugin prefixes, not user input.
+        $bcs_smtp_tables = array(
+                $wpdb->prefix . 'bcs_smtp_email_log',
+                $wpdb->prefix . 'bch_smtp_email_log',
+                $wpdb->prefix . 'bptsm_incidents',
+        );
+        foreach ( $bcs_smtp_tables as $bcs_smtp_table ) {
+                $wpdb->query( "DROP TABLE IF EXISTS {$bcs_smtp_table}" );
+        }
+        // phpcs:enable
+
+        // Delete all options
+        $bcs_smtp_options = array(
+                'bcs_smtp_enabled',
+                'bcs_from_email',
+                'bcs_from_name',
+                'bcs_smtp_host',
+                'bcs_smtp_port',
+                'bcs_smtp_encryption',
+                'bcs_auto_tls',
+                'bcs_smtp_auth',
+                'bcs_smtp_username',
+                'bcs_smtp_custom_server',
+                'bcs_smtp_password',
+                'bcs_smtp_crypto_key',
+                'bcs_smtp_snapshot',
+                'bcs_monitor_enabled',
+                'bcs_check_interval',
+                'bcs_failure_threshold',
+                'bcs_consecutive_failures',
+                'bcs_last_check',
+                'bcs_last_check_success',
+                'bcs_alert_channel_enabled',
+                'bcs_alert_channel',
+                'bcs_alert_webhook_url',
+                'bcs_slack_webhook_url',
+                'bcs_teams_webhook_url',
+                'bcs_google_chat_webhook_url',
+                'bcs_discord_webhook_url',
+                'bcs_custom_webhook_url',
+                'bcs_max_alert_count',
+                'bcs_alert_sent_count',
+                'bcs_report_schedule_enabled',
+                'bcs_report_emails',
+                'bcs_report_frequency',
+                'bcs_log_prune_mode',
+                'bcs_log_prune_value',
+                'bcs_smtp_migrated_v2',
+                'bcs_db_version',
+                'bcs_store_failed_body',
+                'bcs_failed_body_retention_days',
+                'bcs_smtp_migrated_1_3',
+                'bcs_smtp_prune_after',
+                'bcs_smtp_monitor_enabled',
+        );
+        foreach ( $bcs_smtp_options as $bcs_smtp_option ) {
+                delete_option( $bcs_smtp_option );
+        }
+
+        // Temporary values: the health-check lock, the cached server IP and per-user rate limits.
+        delete_transient( 'bcs_smtp_check_lock' );
+        delete_transient( 'bcs_smtp_source_ip' );
+        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching -- uninstall routine; removes this plugin's own rate-limit transients.
+        $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s", $wpdb->esc_like( '_transient_bcs_smtp_rl_' ) . '%', $wpdb->esc_like( '_transient_timeout_bcs_smtp_rl_' ) . '%' ) );
 }
 
-// Drop custom tables
-global $wpdb;
-// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,PluginCheck.Security.DirectDB.UnescapedDBParameter -- uninstall routine; table names are hardcoded plugin prefixes, not user input.
-$bcs_smtp_tables = array(
-        $wpdb->prefix . 'bcs_smtp_email_log',
-        $wpdb->prefix . 'bch_smtp_email_log',
-        $wpdb->prefix . 'bptsm_incidents',
-);
-foreach ( $bcs_smtp_tables as $bcs_smtp_table ) {
-        $wpdb->query( "DROP TABLE IF EXISTS {$bcs_smtp_table}" );
+// On a network each site has its own log table and settings, so clean every one of them.
+if ( is_multisite() ) {
+        foreach ( get_sites( array( 'fields' => 'ids', 'number' => 0 ) ) as $bcs_smtp_site_id ) {
+                switch_to_blog( $bcs_smtp_site_id );
+                bcs_smtp_uninstall_site();
+                restore_current_blog();
+        }
+} else {
+        bcs_smtp_uninstall_site();
 }
-// phpcs:enable
-
-// Delete all options
-$bcs_smtp_options = array(
-        'bcs_smtp_enabled',
-        'bcs_from_email',
-        'bcs_from_name',
-        'bcs_smtp_host',
-        'bcs_smtp_port',
-        'bcs_smtp_encryption',
-        'bcs_auto_tls',
-        'bcs_smtp_auth',
-        'bcs_smtp_username',
-        'bcs_smtp_password',
-        'bcs_monitor_enabled',
-        'bcs_check_interval',
-        'bcs_failure_threshold',
-        'bcs_consecutive_failures',
-        'bcs_last_check',
-        'bcs_last_check_success',
-        'bcs_alert_channel_enabled',
-        'bcs_alert_channel',
-        'bcs_alert_webhook_url',
-        'bcs_slack_webhook_url',
-        'bcs_teams_webhook_url',
-        'bcs_google_chat_webhook_url',
-        'bcs_discord_webhook_url',
-        'bcs_custom_webhook_url',
-        'bcs_max_alert_count',
-        'bcs_alert_sent_count',
-        'bcs_report_schedule_enabled',
-        'bcs_report_emails',
-        'bcs_report_frequency',
-        'bcs_log_prune_mode',
-        'bcs_log_prune_value',
-        'bcs_smtp_migrated_v2',
-        'bcs_db_version',
-        'bcs_store_failed_body',
-        'bcs_failed_body_retention_days',
-);
-foreach ( $bcs_smtp_options as $bcs_smtp_option ) {
-        delete_option( $bcs_smtp_option );
-}

bcs-smtp-manager/trunk/admin/class-bcs-smtp-admin.php

@@ -146 +146 @@
                 wp_enqueue_style(  'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/css/admin.css', array(), BCS_SMTP_VERSION );
 
-                wp_enqueue_script( 'chartjs', BCS_SMTP_PLUGIN_URL . 'assets/js/chart.umd.min.js', array(), '4.4.0', true );
-                wp_enqueue_script( 'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery', 'chartjs' ), BCS_SMTP_VERSION, true );
+                wp_enqueue_script( 'bcs-smtp-admin', BCS_SMTP_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery' ), BCS_SMTP_VERSION, true );
 
                 wp_localize_script( 'bcs-smtp-admin', 'bcsSmtpData', array(
@@ -158 +157 @@
                         'smtpAuth'             => (bool) get_option( 'bcs_smtp_auth', true ),
                         'smtpEncryption'       => get_option( 'bcs_smtp_encryption', 'tls' ),
-                        'monitorEnabled'       => (bool) get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false ),
                         'alertChannelEnabled'  => (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false ),
-                        'alertChannel'         => get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' ),
                         'passwordIsSet'        => ! empty( get_option( 'bcs_smtp_password', '' ) ),
+                        'firstRun'             => '' === trim( (string) get_option( 'bcs_smtp_host', '' ) ),
+                        'i18n'                 => array(
+                                'chReady'         => __( 'Active', 'bcs-smtp-manager' ),
+                                'chAddUrl'        => __( 'Needs URL', 'bcs-smtp-manager' ),
+                                'chOff'           => __( 'Off', 'bcs-smtp-manager' ),
+                                /* translators: 1: channels switched on, 2: all channels. */
+                                'chCount'         => __( '%1$s of %2$s on', 'bcs-smtp-manager' ),
+                                'chCheckUrl'      => __( 'Check URL', 'bcs-smtp-manager' ),
+                                'urlHttps'        => __( 'Paste the full address, starting with https://', 'bcs-smtp-manager' ),
+                                /* translators: %s: alert channel name, e.g. Slack. */
+                                'urlHost'         => __( 'This doesn’t look like a %s webhook URL.', 'bcs-smtp-manager' ),
+                                'urlPublic'       => __( 'Use a public https:// address, not localhost or an IP address.', 'bcs-smtp-manager' ),
+                                'saveFirst'       => __( 'Save your changes first. The test uses your saved settings.', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of alert channels. */
+                                'nChannels'       => __( '%s channels', 'bcs-smtp-manager' ),
+                                'saving'          => __( 'Saving…', 'bcs-smtp-manager' ),
+                                'savingTesting'   => __( 'Saving and testing…', 'bcs-smtp-manager' ),
+                                'sending'         => __( 'Sending…', 'bcs-smtp-manager' ),
+                                'checking'        => __( 'Checking…', 'bcs-smtp-manager' ),
+                                'saved'           => __( 'Saved.', 'bcs-smtp-manager' ),
+                                'saveFailed'      => __( 'Couldn’t save. Please try again.', 'bcs-smtp-manager' ),
+                                'requestFailed'   => __( 'The request didn’t reach WordPress. Check your connection and try again.', 'bcs-smtp-manager' ),
+                                /* translators: %s: HTTP status code. */
+                                'requestFailedCode' => __( 'WordPress returned an error (HTTP %s). Check the server error log or turn on WP_DEBUG.', 'bcs-smtp-manager' ),
+                                'connFailed'      => __( 'Connection failed:', 'bcs-smtp-manager' ),
+                                'enterRecipient'  => __( 'Enter an email address to send the test to.', 'bcs-smtp-manager' ),
+                                'testFailed'      => __( 'The test email wasn’t sent.', 'bcs-smtp-manager' ),
+                                'checkFailed'     => __( 'The health check couldn’t run.', 'bcs-smtp-manager' ),
+                                'resent'          => __( 'Resent', 'bcs-smtp-manager' ),
+                                'pwSaved'         => __( 'Saved and encrypted.', 'bcs-smtp-manager' ),
+                                'pwChanging'      => __( 'Enter the new password. Leave it empty to keep the saved one.', 'bcs-smtp-manager' ),
+                                'showPw'          => __( 'Show password', 'bcs-smtp-manager' ),
+                                'hidePw'          => __( 'Hide password', 'bcs-smtp-manager' ),
+                                'copy'            => __( 'Copy', 'bcs-smtp-manager' ),
+                                'copied'          => __( 'Copied', 'bcs-smtp-manager' ),
+                                'loadError'       => __( 'The email log couldn’t be loaded. Reload the page to try again.', 'bcs-smtp-manager' ),
+                                /* translators: 1: current page, 2: total pages, 3: number of emails. */
+                                'pageInfo'        => __( 'Page %1$s of %2$s · %3$s emails', 'bcs-smtp-manager' ),
+                                'pickServer'      => __( 'Filled in when you pick a provider', 'bcs-smtp-manager' ),
+                                'sent'            => __( 'Sent', 'bcs-smtp-manager' ),
+                                'failed'          => __( 'Failed', 'bcs-smtp-manager' ),
+                                'unconfirmed'     => __( 'Unconfirmed', 'bcs-smtp-manager' ),
+                                /* translators: %s: date the week starts, e.g. "Oct 1". */
+                                'weekOf'          => __( 'Week of %s', 'bcs-smtp-manager' ),
+                                /* translators: %s: date the two-week period starts, e.g. "Oct 1". */
+                                'twoWeeksOf'      => __( '2 weeks from %s', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of emails. */
+                                'emailsCount'     => __( '%s emails', 'bcs-smtp-manager' ),
+                                /* translators: %s: number of days in the period. */
+                                'ofDays'          => __( 'of %s days', 'bcs-smtp-manager' ),
+                                /* translators: %s: period length, e.g. "30 days". */
+                                'lastPeriod'      => __( 'Last %s', 'bcs-smtp-manager' ),
+                                'lessThanOne'     => __( 'Less than 1', 'bcs-smtp-manager' ),
+                                /* translators: %s: the entries that are not valid email addresses. */
+                                'badEmails'       => __( 'These aren’t valid email addresses: %s', 'bcs-smtp-manager' ),
+                                'needEmail'       => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ),
+                                /* translators: %s: email address. */
+                                'removeEmail'     => __( 'Remove %s', 'bcs-smtp-manager' ),
+                                'notAnEmail'      => __( 'Not a valid email address', 'bcs-smtp-manager' ),
+                                'oneRecipient'    => _x( 'person', 'count label: 1 person', 'bcs-smtp-manager' ),
+                                'manyRecipients'  => _x( 'people', 'count label: 2 or more people', 'bcs-smtp-manager' ),
+                                'oneDay'          => _x( 'day', 'streak length: 1 day', 'bcs-smtp-manager' ),
+                                'manyDays'        => _x( 'days', 'streak length: 2 or more days', 'bcs-smtp-manager' ),
+                                /* translators: %s: email provider name, e.g. Microsoft 365 / Outlook. */
+                                'needsAuth'       => __( '%s needs a username and password.', 'bcs-smtp-manager' ),
+                        ),
                 ) );
         }
@@ -226 +289 @@
                 update_option( 'bcs_smtp_username',   $username );
 
+                // Keep the "Other SMTP server" details on their own, so switching to a preset provider
+                // and saving doesn't lose them — choosing "Other" again brings them back.
+                $provider = isset( $_POST['provider'] ) ? sanitize_key( wp_unslash( $_POST['provider'] ) ) : '';
+                if ( 'other' === $provider && '' !== $host ) {
+                        update_option( 'bcs_smtp_custom_server', array( 'host' => $host, 'port' => $port, 'encryption' => $encryption ), false );
+                }
+
                 // Only overwrite the stored password if the user submitted a non-empty value.
                 // Encrypted at rest — see BCS_SMTP_Mailer::encrypt_password()/get_smtp_password().
@@ -241 +311 @@
                                 update_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
                         }
+                        // This test counts as a check, so the next scheduled one is counted from it.
+                        $this->monitor->schedule_next_check();
                 }
 
@@ -254 +326 @@
                                         /* translators: 1: SMTP host, 2: SMTP port. */
                                         ? sprintf( __( 'Connection test passed — SMTP server is reachable on %1$s:%2$s.', 'bcs-smtp-manager' ), esc_html( $host ), esc_html( (string) $port ) )
-                                        : ( isset( $test_result['error_msg'] ) ? $test_result['error_msg'] : __( 'Connection test failed.', 'bcs-smtp-manager' ) ),
+                                        : ( isset( $test_result['error_msg'] ) ? esc_html( $test_result['error_msg'] ) : __( 'Connection test failed.', 'bcs-smtp-manager' ) ),
                         );
                 }
@@ -271 +343 @@
                 check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
                 if ( ! current_user_can( 'manage_options' ) ) { ob_end_clean(); wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-                if ( $this->is_rate_limited( 'send_test', 60 ) ) { ob_end_clean(); wp_send_json_error( __( 'Please wait 60 seconds before sending another test email.', 'bcs-smtp-manager' ) ); }
 
                 $to = isset( $_POST['to'] ) ? sanitize_email( wp_unslash( $_POST['to'] ) ) : '';
@@ -278 +349 @@
                         wp_send_json_error( __( 'Invalid recipient email address.', 'bcs-smtp-manager' ) );
                 }
+                if ( $this->is_rate_limited( 'send_test', 15 ) ) { ob_end_clean(); wp_send_json_error( __( 'Please wait 15 seconds before sending another test email.', 'bcs-smtp-manager' ) ); }
 
                 $result = $this->mailer->send_test_email( $to );
@@ -296 +368 @@
                                         $hint = ' ' . __( 'SMTP is configured but PHPMailer is still using PHP mail(). Try deactivating and reactivating this plugin, or check if another email plugin is overriding the settings.', 'bcs-smtp-manager' );
                                 } else {
-                                        $hint = ' ' . __( 'Configure and enable SMTP in the Settings tab — PHP mail() is not available on this server.', 'bcs-smtp-manager' );
+                                        $hint = ' ' . __( 'Set up and enable SMTP on the Connection tab — PHP mail() is not available on this server.', 'bcs-smtp-manager' );
                                 }
                         } elseif ( 'not_configured' === $result['failure_type'] ) {
-                                $hint = ' ' . __( 'Go to Settings, enter your SMTP details, and save before sending a test.', 'bcs-smtp-manager' );
+                                $hint = ' ' . __( 'Enter your server details on the Connection tab and save before sending a test.', 'bcs-smtp-manager' );
                         }
                         wp_send_json_error( array(
-                                'message'      => $result['error_msg'] . $hint,
+                                'message'      => esc_html( $result['error_msg'] ) . $hint,
                                 'failure_type' => $type,
                         ) );
@@ -317 +389 @@
                 if ( $this->is_rate_limited( 'check_now', 30 ) ) { wp_send_json_error( __( 'Please wait 30 seconds before running another health check.', 'bcs-smtp-manager' ) ); }
 
-                $this->monitor->run_health_check();
-
-                $success  = (bool) get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS );
-                $failures = (int)  get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $result   = $this->monitor->run_health_check( true );
+                $success  = ! empty( $result['success'] );
+                $failures = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+
+                if ( $success ) {
+                        $message = __( 'Health check passed — connected and authenticated with the SMTP server.', 'bcs-smtp-manager' );
+                } else {
+                        /* translators: 1: number of consecutive failures, 2: error detail. */
+                        $message = sprintf( __( 'Health check failed (%1$d consecutive failure(s)): %2$s', 'bcs-smtp-manager' ), $failures, esc_html( isset( $result['error_msg'] ) ? $result['error_msg'] : '' ) );
+                }
 
                 wp_send_json_success( array(
                         'success'  => $success,
                         'failures' => $failures,
-                        'message'  => $success
-                                ? __( 'Health check passed — SMTP connection successful.', 'bcs-smtp-manager' )
-                                /* translators: %d: number of consecutive failures. */
-                                : sprintf( __( 'Health check failed — %d consecutive failure(s).', 'bcs-smtp-manager' ), $failures ),
+                        'message'  => $message,
                 ) );
         }
@@ -334 +409 @@
         /* ─────────────────────────────────────────────────────────────────── */
         /* AJAX — Save monitor settings                                          */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_monitor() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $enabled        = ! empty( $_POST['monitor_enabled'] );
-                $interval       = isset( $_POST['check_interval'] )    ? absint( $_POST['check_interval'] )    : 5;
-                $threshold      = isset( $_POST['failure_threshold'] ) ? absint( $_POST['failure_threshold'] ) : 2;
-                $max_alert      = isset( $_POST['max_alert_count'] )   ? absint( $_POST['max_alert_count'] )   : 0;
-
-                $interval  = max( 1, min( 1440, $interval ) );
-                $threshold = max( 1, min( 10, $threshold ) );
-                $max_alert = min( 100, $max_alert );
-
-                $old_interval = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-
-                update_option( BCS_SMTP_OPT_MONITOR_ENABLED,   $enabled );
-                update_option( BCS_SMTP_OPT_CHECK_INTERVAL,    $interval );
-                update_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, $threshold );
-                update_option( BCS_SMTP_OPT_MAX_ALERT_COUNT,   $max_alert );
-
-                if ( $enabled && $interval !== $old_interval ) {
-                        $next = wp_next_scheduled( 'bcs_smtp_health_check' );
-                        if ( $next ) {
-                                wp_unschedule_event( $next, 'bcs_smtp_health_check' );
-                        }
-                }
-
-                $this->monitor->maybe_schedule_event();
-
-                wp_send_json_success( array( 'message' => __( 'Monitor settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
         /* ─────────────────────────────────────────────────────────────────── */
         /* AJAX — Save alert channel settings                                    */
@@ -377 +418 @@
 
                 $channel_enabled = ! empty( $_POST['alert_channel_enabled'] );
-                $allowed         = array( 'none', 'slack', 'teams', 'google_chat', 'discord', 'custom' );
-                $channel         = isset( $_POST['alert_channel'] ) ? sanitize_key( wp_unslash( $_POST['alert_channel'] ) ) : 'none';
-                $channel         = in_array( $channel, $allowed, true ) ? $channel : 'none';
+                $labels          = BCS_SMTP_Monitor::channel_labels();
+                $posted          = isset( $_POST['alert_channels'] ) ? array_map( 'sanitize_key', (array) wp_unslash( $_POST['alert_channels'] ) ) : array(); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- sanitized by array_map.
+                $channels        = array_values( array_intersect( array_keys( $labels ), $posted ) );
                 $slack_url       = isset( $_POST['slack_webhook_url'] ) ? esc_url_raw( wp_unslash( $_POST['slack_webhook_url'] ) ) : '';
                 $teams_url       = isset( $_POST['teams_webhook_url'] ) ? esc_url_raw( wp_unslash( $_POST['teams_webhook_url'] ) ) : '';
@@ -391 +432 @@
                 }
                 if ( '' !== $teams_url && ! BCS_SMTP_Monitor::is_allowed_webhook_host( $teams_url, 'teams' ) ) {
-                        wp_send_json_error( __( 'Teams webhook URL must be a Microsoft Office/Logic Apps https:// URL.', 'bcs-smtp-manager' ) );
+                        wp_send_json_error( __( 'Teams webhook URL must be a Microsoft Teams Workflows (Power Automate / Logic Apps) or Office 365 connector https:// URL.', 'bcs-smtp-manager' ) );
                 }
                 if ( '' !== $google_chat_url && ! BCS_SMTP_Monitor::is_allowed_webhook_host( $google_chat_url, 'google_chat' ) ) {
@@ -403 +444 @@
                 }
 
+                $channel_urls = array( 'slack' => $slack_url, 'teams' => $teams_url, 'google_chat' => $google_chat_url, 'discord' => $discord_url, 'custom' => $custom_url );
+                if ( $channel_enabled && ! $channels ) {
+                        wp_send_json_error( __( 'Choose at least one place to send alerts.', 'bcs-smtp-manager' ) );
+                }
+                foreach ( $channel_enabled ? $channels : array() as $ch ) {
+                        if ( '' === $channel_urls[ $ch ] ) {
+                                /* translators: %s: alert channel name, e.g. Slack. */
+                                wp_send_json_error( sprintf( __( 'Enter the %s webhook URL.', 'bcs-smtp-manager' ), $labels[ $ch ] ) );
+                        }
+                }
+
                 update_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED,    $channel_enabled );
-                update_option( BCS_SMTP_OPT_ALERT_CHANNEL,            $channel );
+                update_option( BCS_SMTP_OPT_ALERT_CHANNEL,            $channels );
                 update_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        $slack_url );
                 update_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        $teams_url );
@@ -427 +479 @@
                 }
 
-                $channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-                if ( 'none' === $channel ) {
-                        wp_send_json_error( __( 'No alert channel configured.', 'bcs-smtp-manager' ) );
-                }
 
                 $mock_result = array(
@@ -442 +490 @@
                 );
 
-                $this->monitor->send_alert( $mock_result, 2, false );
-                $channel_labels = array( 'slack' => 'Slack', 'teams' => 'Teams', 'google_chat' => 'Google Chat', 'discord' => 'Discord', 'custom' => 'Custom Webhook' );
-                $channel_label  = isset( $channel_labels[ $channel ] ) ? $channel_labels[ $channel ] : ucfirst( $channel );
-                /* translators: %s: alert channel name (e.g. Slack, Teams, Google Chat). */
-                wp_send_json_success( array( 'message' => sprintf( __( 'Test alert dispatched via %s channel.', 'bcs-smtp-manager' ), $channel_label ) ) );
+                $results = $this->monitor->send_alert( $mock_result, 2, false, true );
+                if ( is_wp_error( $results ) ) {
+                        wp_send_json_error( esc_html( $results->get_error_message() ) );
+                }
+
+                $labels = BCS_SMTP_Monitor::channel_labels();
+                $ok     = array_keys( array_filter( $results, function ( $r ) { return true === $r; } ) );
+                $errors = array();
+                foreach ( $results as $ch => $r ) {
+                        if ( is_wp_error( $r ) ) {
+                                /* translators: 1: alert channel name, 2: error message. */
+                                $errors[] = sprintf( __( '%1$s: %2$s', 'bcs-smtp-manager' ), $labels[ $ch ], $r->get_error_message() );
+                        }
+                }
+                /* translators: %s: list of alert channels, e.g. "Slack and Discord". */
+                $delivered = $ok ? sprintf( __( 'Test alert delivered to %s.', 'bcs-smtp-manager' ), BCS_SMTP_Monitor::channel_list_label( $ok ) ) : '';
+                if ( ! $errors ) {
+                        wp_send_json_success( array( 'message' => $delivered ) );
+                }
+                /* translators: %s: one or more "Channel: error" entries. */
+                $failed = sprintf( __( 'Not delivered — %s', 'bcs-smtp-manager' ), implode( '; ', $errors ) );
+                wp_send_json_error( esc_html( trim( $delivered . ' ' . $failed ) ) );
         }
 
@@ -469 +534 @@
                 ob_start();
                 if ( empty( $result['rows'] ) ) {
-                        echo '<tr><td colspan="7" style="text-align:center;padding:24px;color:var(--bcs-smtp-text-3)">' . esc_html__( 'No emails found matching your filters.', 'bcs-smtp-manager' ) . '</td></tr>';
+                        $filtered = '' !== $args['search'] || '' !== $args['status'];
+                        echo '<tr><td colspan="5" class="bcs-smtp-table-empty"><strong>' . esc_html( $filtered ? __( 'No emails match these filters', 'bcs-smtp-manager' ) : __( 'No emails in this period', 'bcs-smtp-manager' ) ) . '</strong><span>' . esc_html( $filtered ? __( 'Try a wider date range or clear the search.', 'bcs-smtp-manager' ) : __( 'Every email WordPress sends will be listed here with its delivery status.', 'bcs-smtp-manager' ) ) . '</span></td></tr>';
                 } else {
+                        $last_day = '';
                         foreach ( $result['rows'] as $row ) {
+                                $day = mysql2date( 'Y-m-d', $row['sent_at'] );
+                                if ( $day !== $last_day ) {
+                                        echo '<tr class="bcs-smtp-day-row"><th colspan="5" scope="colgroup">' . esc_html( $this->log_day_label( $day ) ) . '</th></tr>';
+                                        $last_day = $day;
+                                }
                                 $this->render_email_log_row( $row );
                         }
@@ -478 +550 @@
 
                 wp_send_json_success( array(
-                        'html'  => $html,
-                        'total' => $result['total'],
-                        'pages' => $result['pages'],
-                        'page'  => $result['page'],
+                        'html'   => $html,
+                        'counts' => $this->db->count_email_log_by_status( $args['date_range'], $args['search'] ),
+                        'total'  => $result['total'],
+                        'pages'  => $result['pages'],
+                        'page'   => $result['page'],
                 ) );
         }
@@ -495 +568 @@
                 $date_range = isset( $_POST['date_range'] ) ? sanitize_key( wp_unslash( $_POST['date_range'] ) ) : '30days';
 
-                $summary    = $this->db->get_email_summary( $date_range );
+                list( $own, $own_domains ) = $this->internal_recipients();
+                $summary    = $this->db->get_email_summary_with_recipients( $date_range, $own, $own_domains );
                 $chart_data = $this->db->get_email_chart_data( $date_range );
 
@@ -509 +583 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
+        /**
+         * A CSV cell that spreadsheet apps won't run as a formula. Subjects and addresses can come
+         * from visitors (contact forms), so a value starting with =, +, -, @, tab or CR gets a
+         * leading apostrophe, which Excel and Google Sheets show as plain text.
+         *
+         * @param  mixed $value
+         * @return string
+         */
+        private static function csv_cell( $value ) {
+                $value = (string) $value;
+                return ( '' !== $value && false !== strpos( "=+-@\t\r", $value[0] ) ) ? "'" . $value : $value;
+        }
+
         public function handle_export_csv() {
                 if ( ! isset( $_GET['bcs_smtp_action'] ) || 'export_csv' !== $_GET['bcs_smtp_action'] ) {
                         return;
                 }
-                if ( ! isset( $_GET['nonce'] ) || ! wp_verify_nonce( sanitize_key( wp_unslash( $_GET['nonce'] ) ), 'bcs_smtp_export' ) ) {
-                        wp_die( esc_html__( 'Security check failed.', 'bcs-smtp-manager' ) );
-                }
                 if ( ! current_user_can( 'manage_options' ) ) {
-                        wp_die( esc_html__( 'Permission denied.', 'bcs-smtp-manager' ) );
+                        wp_die( esc_html__( 'Permission denied.', 'bcs-smtp-manager' ), '', array( 'response' => 403 ) );
+                }
+                if ( ! isset( $_GET['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_GET['nonce'] ) ), 'bcs_smtp_export' ) ) {
+                        wp_die( esc_html__( 'This export link has expired. Reload the page and try again.', 'bcs-smtp-manager' ), '', array( 'response' => 403 ) );
                 }
 
@@ -537 +624 @@
                 $out = fopen( 'php://output', 'w' );
                 fwrite( $out, "\xEF\xBB\xBF" ); // UTF-8 BOM for Excel compatibility
-                fputcsv( $out, array( 'ID', 'Date', 'Subject', 'From', 'To', 'Status', 'Error' ) );
+                // Delimiter, enclosure and escape are passed explicitly: PHP 8.4 deprecates relying on the default escape.
+                fputcsv( $out, array( 'ID', 'Date', 'Subject', 'From', 'To', 'Status', 'Error' ), ',', '"', '\\' );
                 foreach ( $rows as $row ) {
                         fputcsv( $out, array(
                                 $row['id'],
                                 $row['sent_at'],
-                                $row['subject'],
-                                $row['from_address'],
-                                $row['to_address'],
+                                self::csv_cell( $row['subject'] ),
+                                self::csv_cell( $row['from_address'] ),
+                                self::csv_cell( $row['to_address'] ),
                                 $row['status'],
-                                $row['error_msg'],
-                        ) );
+                                self::csv_cell( $row['error_msg'] ),
+                        ), ',', '"', '\\' );
                 }
                 fclose( $out );
@@ -555 +643 @@
 
         /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save log retention / auto-prune settings                      */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_log_prune() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $allowed_modes = array( 'days', 'records' );
-                $mode = isset( $_POST['prune_mode'] ) ? sanitize_key( wp_unslash( $_POST['prune_mode'] ) ) : 'days';
-
-                if ( ! in_array( $mode, $allowed_modes, true ) ) { $mode = 'days'; }
-
-                // Values are locked — 30 days or 1000 records. Server always enforces these limits.
-                $value = ( 'records' === $mode ) ? 1000 : 30;
-
-                update_option( 'bcs_log_prune_mode',  $mode );
-                update_option( 'bcs_log_prune_value', $value );
-
-                wp_send_json_success( array( 'message' => __( 'Log retention settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* Cron callback — run auto-prune                                        */
+        /* Cron callback — prune the email log                                   */
         /* ─────────────────────────────────────────────────────────────────── */
 
         public function run_log_pruning() {
-                $mode  = get_option( 'bcs_log_prune_mode',  'days' );
-                $value = (int) get_option( 'bcs_log_prune_value', 30 );
-                $this->db->prune_email_log( $mode, $value );
-
-                // Failed-email bodies get their own, typically shorter, retention window.
-                $this->db->clear_old_failed_bodies( (int) get_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Resend a failed email                                          */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_resend_email() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $log_id = isset( $_POST['log_id'] ) ? absint( $_POST['log_id'] ) : 0;
-                if ( ! $log_id ) { wp_send_json_error( __( 'Missing log entry ID.', 'bcs-smtp-manager' ) ); }
-
-                if ( $this->is_rate_limited( 'resend_' . $log_id, 30 ) ) {
-                        wp_send_json_error( __( 'Please wait 30 seconds before resending this email again.', 'bcs-smtp-manager' ) );
-                }
-
-                $result = $this->mailer->resend_stored_email( $log_id );
-                if ( $result['success'] ) {
-                        wp_send_json_success( array( 'message' => $result['message'] ) );
-                }
-                wp_send_json_error( $result['message'] );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save Resend settings                                           */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        public function ajax_save_resend_settings() {
-                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
-                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
-
-                $enabled = ! empty( $_POST['store_failed_body'] );
-                $days    = isset( $_POST['retention_days'] ) ? absint( $_POST['retention_days'] ) : 7;
-                $days    = max( 1, min( 30, $days ) );
-
-                update_option( BCS_SMTP_OPT_STORE_FAILED_BODY, $enabled );
-                update_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, $days );
-
-                wp_send_json_success( array( 'message' => __( 'Resend settings saved.', 'bcs-smtp-manager' ) ) );
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* AJAX — Save report schedule                                           */
-        /* ─────────────────────────────────────────────────────────────────── */
+                // After updating from a version that kept everything, wait out the grace period first.
+                $grace_until = (int) get_option( 'bcs_smtp_prune_after', 0 );
+                if ( $grace_until > time() ) {
+                        return;
+                }
+                if ( $grace_until ) {
+                        delete_option( 'bcs_smtp_prune_after' );
+                }
+                // The log keeps the last 90 days; the reports and charts never look further back.
+                $this->db->prune_email_log( 'days', BCS_SMTP_LOG_RETENTION_DAYS );
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* Report recipients + AJAX — Save report schedule                       */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /**
+         * Split a comma-separated recipient list into valid and invalid entries.
+         *
+         * @param string $list Raw input.
+         * @return array { valid: string[] (lower-cased, de-duplicated), invalid: string[] }
+         */
+        private function parse_report_recipients( $list ) {
+                $valid   = array();
+                $invalid = array();
+                foreach ( explode( ',', (string) $list ) as $part ) {
+                        $part = trim( $part );
+                        if ( '' === $part ) {
+                                continue;
+                        }
+                        if ( is_email( $part ) ) {
+                                $valid[ strtolower( $part ) ] = strtolower( $part );
+                        } else {
+                                $invalid[] = $part;
+                        }
+                }
+                return array( 'valid' => array_values( $valid ), 'invalid' => $invalid );
+        }
+
+        /**
+         * Error text naming the entries that are not email addresses.
+         *
+         * @param string[] $invalid Bad entries.
+         * @return string
+         */
+        private function invalid_recipients_message( $invalid ) {
+                return sprintf(
+                        /* translators: %s: the entries that are not valid email addresses, comma-separated. */
+                        _n( 'This isn’t a valid email address: %s', 'These aren’t valid email addresses: %s', count( $invalid ), 'bcs-smtp-manager' ),
+                        esc_html( implode( ', ', $invalid ) )
+                );
+        }
 
         public function ajax_save_report_schedule() {
@@ -637 +704 @@
                 if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
 
-                $enabled   = ! empty( $_POST['enabled'] );
-                $emails    = isset( $_POST['emails'] )    ? sanitize_text_field( wp_unslash( $_POST['emails'] ) )    : '';
-                $frequency = isset( $_POST['frequency'] ) ? sanitize_key( wp_unslash( $_POST['frequency'] ) )        : 'weekly';
-
-                if ( ! in_array( $frequency, array( 'daily', 'weekly', 'monthly' ), true ) ) {
-                        $frequency = 'weekly';
-                }
+                $enabled = ! empty( $_POST['enabled'] );
+                $parsed  = $this->parse_report_recipients( isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '' );
+
+                if ( ! empty( $parsed['invalid'] ) ) {
+                        wp_send_json_error( array( 'message' => $this->invalid_recipients_message( $parsed['invalid'] ), 'field' => 'emails' ) );
+                }
+                if ( $enabled && empty( $parsed['valid'] ) ) {
+                        wp_send_json_error( array( 'message' => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ), 'field' => 'emails' ) );
+                }
+                $emails = implode( ', ', $parsed['valid'] );
 
                 update_option( 'bcs_report_schedule_enabled', $enabled );
                 update_option( 'bcs_report_emails',           $emails );
-                update_option( 'bcs_report_frequency',        $frequency );
-
-                // Re-schedule the cron event.
-                $timestamp = wp_next_scheduled( 'bcs_smtp_send_report' );
-                if ( $timestamp ) {
-                        wp_unschedule_event( $timestamp, 'bcs_smtp_send_report' );
-                }
-                if ( $enabled && ! empty( $emails ) ) {
-                        $recurrence = ( 'daily' === $frequency ) ? 'daily' : ( ( 'monthly' === $frequency ) ? 'bcs_smtp_monthly' : 'weekly' );
-                        wp_schedule_event( time() + DAY_IN_SECONDS, $recurrence, 'bcs_smtp_send_report' );
-                }
-
-                wp_send_json_success( array( 'message' => __( 'Report schedule saved.', 'bcs-smtp-manager' ) ) );
+                // Reports are monthly, on the 1st at 9:00; options from the old schedule picker are retired.
+
+                $next = $this->schedule_next_report();
+
+                wp_send_json_success( array(
+                        'message' => __( 'Report schedule saved.', 'bcs-smtp-manager' ),
+                        'next'    => $next ? $this->describe_next_report( $next ) : '',
+                        'emails'  => $emails,
+                ) );
         }
 
@@ -669 +735 @@
                 check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
                 if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
+                $parsed = $this->parse_report_recipients( isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '' );
+                if ( ! empty( $parsed['invalid'] ) ) {
+                        wp_send_json_error( array( 'message' => $this->invalid_recipients_message( $parsed['invalid'] ), 'field' => 'emails' ) );
+                }
+                if ( empty( $parsed['valid'] ) ) {
+                        wp_send_json_error( array( 'message' => __( 'Enter at least one email address to send the report to.', 'bcs-smtp-manager' ), 'field' => 'emails' ) );
+                }
                 if ( $this->is_rate_limited( 'send_report', 120 ) ) { wp_send_json_error( __( 'Please wait 2 minutes before sending another report.', 'bcs-smtp-manager' ) ); }
 
-                $emails    = isset( $_POST['emails'] ) ? sanitize_text_field( wp_unslash( $_POST['emails'] ) ) : '';
-                $frequency = get_option( 'bcs_report_frequency', 'weekly' );
-                $range_map = array( 'daily' => 'today', 'weekly' => '7days', 'monthly' => 'this_month' );
-                $date_range = isset( $range_map[ $frequency ] ) ? $range_map[ $frequency ] : '7days';
-
-                if ( empty( $emails ) ) {
-                        wp_send_json_error( __( 'No recipient email addresses entered.', 'bcs-smtp-manager' ) );
-                }
+                $emails     = implode( ', ', $parsed['valid'] );
+                // "Send now" shows the current month so far; the scheduled report on the 1st covers the full previous month.
+                $date_range = 'this_month';
 
                 $result = $this->send_report_to( $emails, $date_range );
@@ -699 +767 @@
         public function send_scheduled_report() {
                 if ( ! get_option( 'bcs_report_schedule_enabled', false ) ) {
+                        wp_clear_scheduled_hook( 'bcs_smtp_send_report' );
                         return;
                 }
-                $emails    = get_option( 'bcs_report_emails', '' );
-                $frequency = get_option( 'bcs_report_frequency', 'weekly' );
-                $range_map = array( 'daily' => 'today', 'weekly' => '7days', 'monthly' => 'this_month' );
-                $date_range = isset( $range_map[ $frequency ] ) ? $range_map[ $frequency ] : '7days';
+                $emails = get_option( 'bcs_report_emails', '' );
                 if ( ! empty( $emails ) ) {
-                        $this->send_report_to( $emails, $date_range );
-                }
+                        $this->send_report_to( $emails, $this->report_range_for() );
+                }
+                // One-off events chained at the chosen time; this also replaces the interval-based
+                // recurring event older versions created, which drifted from the save time.
+                $this->schedule_next_report();
+        }
+
+        /**
+         * The period a report covers: reports go out on the 1st, so they cover the whole previous month.
+         *
+         * @return string Date-range key understood by BCS_SMTP_DB.
+         */
+        private function report_range_for() {
+                return 'last_month';
+        }
+
+        /**
+         * Next send time for the saved schedule, in the site's timezone.
+         *
+         * @return int|null Unix timestamp, or null when no schedule is active.
+         */
+        private function next_report_timestamp() {
+                if ( ! get_option( 'bcs_report_schedule_enabled', false ) || '' === trim( (string) get_option( 'bcs_report_emails', '' ) ) ) {
+                        return null;
+                }
+                $now = new DateTimeImmutable( 'now', wp_timezone() );
+                $at  = $now->modify( 'first day of this month' )->setTime( 9, 0 );
+                if ( $at <= $now ) {
+                        $at = $at->modify( 'first day of next month' );
+                }
+                return $at->getTimestamp();
+        }
+
+        /**
+         * Replace any pending report event with one at the next scheduled time.
+         *
+         * @return int|null The booked timestamp.
+         */
+        /**
+         * Keep the monthly report booked while reports are on: the 1.3 upgrade replaces the old
+         * daily/weekly event, and a cron run that never happened can leave nothing queued.
+         */
+        public function ensure_report_scheduled() {
+                if ( get_option( 'bcs_report_schedule_enabled', false ) && ! wp_next_scheduled( 'bcs_smtp_send_report' ) ) {
+                        $this->schedule_next_report();
+                }
+        }
+
+        private function schedule_next_report() {
+                wp_clear_scheduled_hook( 'bcs_smtp_send_report' );
+                $next = $this->next_report_timestamp();
+                if ( $next ) {
+                        wp_schedule_single_event( $next, 'bcs_smtp_send_report' );
+                }
+                return $next;
+        }
+
+        /**
+         * "Next report: Mon, Oct 27 at 9:00 am" in the site's date/time format.
+         *
+         * @param int $timestamp Unix timestamp.
+         * @return string
+         */
+        private function describe_next_report( $timestamp ) {
+                /* translators: 1: date, e.g. "Mon, Oct 27", 2: time, e.g. "9:00 am". */
+                return sprintf( __( 'Next report: %1$s at %2$s', 'bcs-smtp-manager' ), wp_date( 'D, M j', $timestamp ), wp_date( get_option( 'time_format', 'g:i a' ), $timestamp ) );
         }
 
@@ -723 +853 @@
                 $summary    = $this->db->get_email_summary( $date_range );
                 $chart_data = $this->db->get_email_chart_data( $date_range );
-                $subject    = sprintf( '[%s] Email Delivery Report', get_bloginfo( 'name' ) );
+                /* translators: 1: site name, 2: period, e.g. "October 2026". */
+                $subject    = sprintf( __( '%1$s email report: %2$s', 'bcs-smtp-manager' ), get_bloginfo( 'name' ), $this->report_period_label( $date_range ) );
                 $body       = $this->build_report_html_email( $summary, $chart_data, $date_range );
 
@@ -739 +870 @@
         }
 
+        /**
+         * "October 2026", or "October 2026 (so far)" for the current month.
+         *
+         * @param string $date_range Date-range key.
+         * @return string
+         */
+        private function report_period_label( $date_range ) {
+                if ( 'last_month' === $date_range ) {
+                        return wp_date( 'F Y', strtotime( 'first day of last month', current_time( 'timestamp' ) ) );
+                }
+                if ( 'this_month' === $date_range ) {
+                        /* translators: %s: month and year, e.g. "October 2026". */
+                        return sprintf( __( '%s (so far)', 'bcs-smtp-manager' ), wp_date( 'F Y' ) );
+                }
+                return __( 'Last 30 days', 'bcs-smtp-manager' );
+        }
+
+        /**
+         * Days the report chart covers, as Y-m-d keys in site time, plus whether each is still to come.
+         * A month report shows every day of that month, so the shape reads the same every time.
+         *
+         * @param string $date_range Date-range key.
+         * @param array  $labels     Day keys the chart data has.
+         * @return array List of array( 'Y-m-d', is_future ).
+         */
+        private function report_days( $date_range, $labels ) {
+                $now = current_time( 'timestamp' );
+                if ( 'last_month' === $date_range || 'this_month' === $date_range ) {
+                        $first = 'last_month' === $date_range ? strtotime( 'first day of last month', $now ) : $now;
+                        $today = gmdate( 'Y-m-d', $now );
+                        $days  = array();
+                        for ( $d = 1, $n = (int) gmdate( 't', $first ); $d <= $n; $d++ ) {
+                                $key    = gmdate( 'Y-m-', $first ) . sprintf( '%02d', $d );
+                                $days[] = array( $key, $key > $today );
+                        }
+                        return $days;
+                }
+                return array_map( function ( $key ) { return array( $key, false ); }, array_slice( $labels, -31 ) );
+        }
+
         private function build_report_html_email( $summary, $chart_data, $date_range ) {
-                $site_name = get_bloginfo( 'name' );
-                $site_url  = get_bloginfo( 'url' );
-                $timestamp = current_time( 'M j, Y \a\t g:i A' );
-                $range_labels = array(
-                        'today'      => 'Today',
-                        '7days'      => 'Last 7 Days',
-                        '30days'     => 'Last 30 Days',
-                        'this_week'  => 'This Week',
-                        'this_month' => 'This Month',
-                        '3months'    => 'Last 3 Months',
-                        '6months'    => 'Last 6 Months',
-                        'year'       => 'Last Year',
-                        'all'        => 'All Time',
+                $T       = 'BCS_SMTP_Email_Template';
+                $period  = $this->report_period_label( $date_range );
+                $total   = (int) $summary['total'];
+                $sent    = (int) $summary['success'];
+                $failed  = (int) $summary['failed'];
+                $unconf  = (int) $summary['unconfirmed'];
+                $rate    = $total > 0 ? round( ( $sent / $total ) * 100, 1 ) : 0;
+                $rate_tx = rtrim( rtrim( number_format_i18n( $rate, 1 ), '0' ), '.,' );
+                $colors  = array( 'sent' => '#16a36a', 'failed' => '#e5484d', 'unconfirmed' => '#f0a020' );
+
+                // Headline verdict for the period.
+                if ( 0 === $total ) {
+                        $tone    = 'info';
+                        $verdict = __( 'No email was sent', 'bcs-smtp-manager' );
+                        $note    = __( 'Nothing went out in this period. If your site has contact forms or a shop, send a test email to make sure the connection still works.', 'bcs-smtp-manager' );
+                } elseif ( 0 === $failed ) {
+                        $tone    = 'ok';
+                        $verdict = __( 'Every email was delivered', 'bcs-smtp-manager' );
+                        /* translators: %s: number of emails. */
+                        $note    = sprintf( _n( '%s email went out without a single failure.', 'All %s emails went out without a single failure.', $total, 'bcs-smtp-manager' ), number_format_i18n( $total ) );
+                } else {
+                        $tone    = $rate >= 90 ? 'warn' : 'bad';
+                        /* translators: %s: number of failed emails. */
+                        $verdict = sprintf( _n( '%s email failed', '%s emails failed', $failed, 'bcs-smtp-manager' ), number_format_i18n( $failed ) );
+                        /* translators: 1: delivered count, 2: total count. */
+                        $note    = sprintf( __( '%1$s of %2$s emails were delivered. The failed ones never reached their inbox.', 'bcs-smtp-manager' ), number_format_i18n( $sent ), number_format_i18n( $total ) );
+                }
+
+                // Share-of-total bar.
+                $bar = '';
+                if ( $total > 0 ) {
+                        foreach ( array( 'sent' => $sent, 'failed' => $failed, 'unconfirmed' => $unconf ) as $k => $v ) {
+                                if ( $v > 0 ) {
+                                        $bar .= '<td width="' . max( 1, round( $v / $total * 100 ) ) . '%" bgcolor="' . $colors[ $k ] . '" style="background:' . $colors[ $k ] . ';height:8px;font-size:0;line-height:0">&nbsp;</td>';
+                                }
+                        }
+                } else {
+                        $bar = '<td class="bcs-track" bgcolor="#e8ecf2" style="background:#e8ecf2;height:8px;font-size:0;line-height:0">&nbsp;</td>';
+                }
+
+                // Stat columns.
+                $stats = '';
+                foreach ( array(
+                        array( __( 'Delivered', 'bcs-smtp-manager' ), $sent, $colors['sent'] ),
+                        array( __( 'Failed', 'bcs-smtp-manager' ), $failed, $colors['failed'] ),
+                        array( __( 'Unconfirmed', 'bcs-smtp-manager' ), $unconf, $colors['unconfirmed'] ),
+                ) as $i => $st ) {
+                        $stats .= '<td width="33%" valign="top" class="bcs-line" style="padding:16px 0 0 ' . ( $i ? '16px;border-left:1px solid #edf0f5' : '0' ) . '">
+          <div class="bcs-ink3" style="font-size:12px;color:#64748b"><span style="color:' . $st[2] . '">&#9679;</span>&nbsp;' . esc_html( $st[0] ) . '</div>
+          <div class="bcs-ink" style="margin-top:4px;font-size:24px;font-weight:700;color:#0f172a;letter-spacing:-.3px">' . esc_html( number_format_i18n( $st[1] ) ) . '</div>
+        </td>';
+                }
+
+                // Daily column chart: every day of the period, stacked delivered / failed / unconfirmed.
+                $by_day = array();
+                foreach ( $chart_data['labels'] as $i => $key ) {
+                        $by_day[ $key ] = array( (int) $chart_data['success'][ $i ], (int) $chart_data['failed'][ $i ], (int) $chart_data['unconfirmed'][ $i ] );
+                }
+                $days = $this->report_days( $date_range, $chart_data['labels'] );
+                $max  = 1;
+                foreach ( $days as $day ) {
+                        if ( isset( $by_day[ $day[0] ] ) ) { $max = max( $max, array_sum( $by_day[ $day[0] ] ) ); }
+                }
+                $plot  = 96;
+                $cols  = '';
+                $width = round( 100 / max( 1, count( $days ) ), 2 );
+                foreach ( $days as $day ) {
+                        list( $s, $f, $u ) = isset( $by_day[ $day[0] ] ) ? $by_day[ $day[0] ] : array( 0, 0, 0 );
+                        $stack = '';
+                        if ( $day[1] ) {
+                                $stack = '';
+                        } elseif ( $s + $f + $u > 0 ) {
+                                foreach ( array( array( $u, $colors['unconfirmed'] ), array( $f, $colors['failed'] ), array( $s, $colors['sent'] ) ) as $seg ) {
+                                        if ( $seg[0] > 0 ) {
+                                                $h      = max( 3, (int) round( $seg[0] / $max * $plot ) );
+                                                $stack .= '<tr><td height="' . $h . '" bgcolor="' . $seg[1] . '" style="background:' . $seg[1] . ';height:' . $h . 'px;font-size:0;line-height:0">&nbsp;</td></tr>';
+                                        }
+                                }
+                        } else {
+                                $stack = '<tr><td height="2" class="bcs-track" bgcolor="#e3e8ef" style="background:#e3e8ef;height:2px;font-size:0;line-height:0">&nbsp;</td></tr>';
+                        }
+                        /* translators: 1: date, 2: delivered count, 3: failed count. */
+                        $tip   = sprintf( __( '%1$s: %2$s delivered, %3$s failed', 'bcs-smtp-manager' ), wp_date( 'M j', strtotime( $day[0] . ' 12:00:00' ) ), $s, $f );
+                        $cols .= '<td width="' . $width . '%" valign="bottom" title="' . esc_attr( $tip ) . '" style="padding:0 1px;height:' . $plot . 'px">'
+                                . ( $stack ? '<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">' . $stack . '</table>' : '' ) . '</td>';
+                }
+                $first_day = $days ? wp_date( 'M j', strtotime( $days[0][0] . ' 12:00:00' ) ) : '';
+                $mid_day   = $days ? wp_date( 'M j', strtotime( $days[ (int) floor( count( $days ) / 2 ) ][0] . ' 12:00:00' ) ) : '';
+                $last_day  = $days ? wp_date( 'M j', strtotime( $days[ count( $days ) - 1 ][0] . ' 12:00:00' ) ) : '';
+                $legend    = '';
+                foreach ( array( 'sent' => __( 'Delivered', 'bcs-smtp-manager' ), 'failed' => __( 'Failed', 'bcs-smtp-manager' ), 'unconfirmed' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ) as $k => $label ) {
+                        $legend .= '<span style="white-space:nowrap;margin-left:12px"><span style="color:' . $colors[ $k ] . '">&#9632;</span>&nbsp;' . esc_html( $label ) . '</span>';
+                }
+
+                $body = '
+      <tr><td class="bcs-pad" style="padding:34px 40px 0">
+        ' . $T::pill( $verdict, $tone ) . '
+        <h1 class="bcs-ink bcs-h1" style="margin:16px 0 8px;font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.4px;color:#0f172a">' . esc_html( $period ) . '</h1>
+        <p class="bcs-ink2" style="margin:0;font-size:15px;line-height:1.65;color:#475569">' . esc_html( $note ) . '</p>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:28px 40px 0">
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+          <td valign="bottom">
+            <div class="bcs-ink3" style="font-size:12px;color:#64748b">' . esc_html__( 'Delivery rate', 'bcs-smtp-manager' ) . '</div>
+            <div class="bcs-ink bcs-big" style="margin-top:2px;font-size:46px;line-height:1.05;font-weight:700;letter-spacing:-1.2px;color:#0f172a">' . esc_html( $total ? $rate_tx . '%' : '—' ) . '</div>
+          </td>
+          <td valign="bottom" align="right" class="bcs-ink3" style="font-size:13px;color:#64748b;padding-bottom:6px">' .
+                        /* translators: %s: number of emails. */
+                        esc_html( sprintf( _n( '%s email in total', '%s emails in total', $total, 'bcs-smtp-manager' ), number_format_i18n( $total ) ) ) . '</td>
+        </tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="margin-top:14px;border-radius:4px;overflow:hidden"><tr>' . $bar . '</tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>' . $stats . '</tr></table>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:32px 40px 0">
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+          <td class="bcs-ink" style="font-size:15px;font-weight:700;color:#0f172a">' . esc_html__( 'Day by day', 'bcs-smtp-manager' ) . '</td>
+          <td align="right" class="bcs-ink3 bcs-hide-sm" style="font-size:12px;color:#64748b">' . $legend . '</td>
+        </tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" class="bcs-line" style="margin-top:16px;border-bottom:1px solid #e3e8ef"><tr>' . $cols . '</tr></table>
+        <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="margin-top:8px"><tr>
+          <td class="bcs-ink3" style="font-size:11px;color:#8a94a6">' . esc_html( $first_day ) . '</td>
+          <td class="bcs-ink3" align="center" style="font-size:11px;color:#8a94a6">' . esc_html( $mid_day ) . '</td>
+          <td class="bcs-ink3" align="right" style="font-size:11px;color:#8a94a6">' . esc_html( $last_day ) . '</td>
+        </tr></table>
+      </td></tr>
+
+      <tr><td class="bcs-pad" style="padding:28px 40px 36px">
+        ' . $T::button( $T::settings_url( $failed ? 'email-log' : 'reports' ), $failed ? __( 'Review failed emails', 'bcs-smtp-manager' ) : __( 'Open the full report', 'bcs-smtp-manager' ) ) . '
+      </td></tr>';
+
+                return $T::document( array(
+                        /* translators: %s: period, e.g. "October 2026". */
+                        'title'     => sprintf( __( 'Email report: %s', 'bcs-smtp-manager' ), $period ),
+                        /* translators: 1: period, 2: delivery-rate verdict, e.g. "3 emails failed". */
+                        'preheader' => sprintf( __( '%1$s: %2$s.', 'bcs-smtp-manager' ), $period, $total ? $verdict . ' · ' . $rate_tx . '% ' . __( 'delivered', 'bcs-smtp-manager' ) : $verdict ),
+                        'label'     => __( 'Monthly email report', 'bcs-smtp-manager' ),
+                        'body'      => $body,
+                        'footer'    => $T::footer( $T::settings_url( 'reports' ), __( 'Change or stop these reports', 'bcs-smtp-manager' ), esc_html__( 'You get this because you’re on the report list for this site.', 'bcs-smtp-manager' ) ),
+                ) );
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* Helpers: status chips, provider presets                              */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /**
+         * Status vocabulary shared by the log table, the overview and the JS.
+         *
+         * @return array status => array( 'tone' => css modifier, 'label' => visible word )
+         */
+        private function status_marks() {
+                return array(
+                        'success'     => array( 'tone' => 'ok',   'label' => __( 'Sent', 'bcs-smtp-manager' ) ),
+                        'failed'      => array( 'tone' => 'bad',  'label' => __( 'Failed', 'bcs-smtp-manager' ) ),
+                        'unconfirmed' => array( 'tone' => 'warn', 'label' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ),
                 );
-                $range_label = isset( $range_labels[ $date_range ] ) ? $range_labels[ $date_range ] : $date_range;
-
-                // Build simple HTML bar chart rows.
-                $max_total = 1;
-                foreach ( $chart_data['labels'] as $i => $day ) {
-                        $day_total = $chart_data['success'][ $i ] + $chart_data['failed'][ $i ] + $chart_data['unconfirmed'][ $i ];
-                        if ( $day_total > $max_total ) { $max_total = $day_total; }
-                }
-
-                // Build bar chart rows — skip days with zero activity; show last 14 days with data.
-                $active_days = array();
-                foreach ( $chart_data['labels'] as $i => $label ) {
-                        if ( $chart_data['success'][ $i ] > 0 || $chart_data['failed'][ $i ] > 0 || $chart_data['unconfirmed'][ $i ] > 0 ) {
-                                $active_days[] = $i;
+        }
+
+        /**
+         * Status chip for one email's delivery status.
+         *
+         * @param string $status success|failed|unconfirmed.
+         * @return string Escaped HTML.
+         */
+        /**
+         * Whole minutes since the last health check (rounded down) or until the next (rounded up),
+         * so the two always add up to the check interval.
+         *
+         * @param  int  $timestamp
+         * @param  bool $until True for a time in the future.
+         * @return string
+         */
+        private function check_minutes( $timestamp, $until = false ) {
+                $seconds = $until ? $timestamp - time() : time() - $timestamp;
+                $mins    = $until ? (int) ceil( $seconds / 60 ) : (int) floor( $seconds / 60 );
+                if ( $mins < 1 ) {
+                        return __( 'less than a minute', 'bcs-smtp-manager' );
+                }
+                /* translators: %d: number of minutes. */
+                return sprintf( _n( '%d minute', '%d minutes', $mins, 'bcs-smtp-manager' ), $mins );
+        }
+
+        private function status_html( $status ) {
+                $marks = $this->status_marks();
+                $mark  = isset( $marks[ $status ] ) ? $marks[ $status ] : array( 'tone' => 'off', 'label' => $status );
+                return '<span class="bcs-smtp-status bcs-smtp-status--' . esc_attr( $mark['tone'] ) . '"><span class="bcs-smtp-status-dot" aria-hidden="true"></span>' . esc_html( $mark['label'] ) . '</span>';
+        }
+
+        /**
+         * Provider presets for guided setup. Host/port/encryption are standard published SMTP settings.
+         *
+         * @return array
+         */
+        private function provider_presets() {
+                // Last saved "Other SMTP server" details. Older installs that saved a custom host
+                // before this option existed fall back to the current host when it isn't a preset.
+                $custom = wp_parse_args( (array) get_option( 'bcs_smtp_custom_server', array() ), array( 'host' => '', 'port' => 587, 'encryption' => 'tls' ) );
+                $saved  = strtolower( trim( (string) get_option( 'bcs_smtp_host', '' ) ) );
+                $known  = array( 'smtp.gmail.com', 'smtp.office365.com', 'smtp-mail.outlook.com', 'smtp.sendgrid.net', 'smtp.mailgun.org', 'smtp-relay.brevo.com', 'smtp.zoho.com', 'smtp.zoho.eu', 'smtp.zoho.in', 'smtp.mail.yahoo.com' );
+                if ( '' === $custom['host'] && '' !== $saved && ! in_array( $saved, $known, true ) && ! preg_match( '/^email-smtp\.[a-z0-9-]+\.amazonaws\.com$/', $saved ) ) {
+                        $custom = array( 'host' => $saved, 'port' => (int) get_option( 'bcs_smtp_port', 587 ), 'encryption' => get_option( 'bcs_smtp_encryption', 'tls' ) );
+                }
+
+                return array(
+                        'gmail'     => array(
+                                'label' => __( 'Gmail / Google Workspace', 'bcs-smtp-manager' ),
+                                'short' => 'G',
+                                'host'  => 'smtp.gmail.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Gmail or Workspace address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'App password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Google needs a 16-character App Password here, not your normal password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://myaccount.google.com/apppasswords',
+                                'link_label' => __( 'Create an App Password', 'bcs-smtp-manager' ),
+                        ),
+                        'microsoft' => array(
+                                'label' => __( 'Microsoft 365 / Outlook', 'bcs-smtp-manager' ),
+                                'short' => 'M',
+                                'host'  => 'smtp.office365.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Microsoft 365 email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password or app password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'SMTP sign-in (SMTP AUTH) must be allowed for this mailbox in Microsoft 365 admin.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission',
+                                'link_label' => __( 'How to allow SMTP AUTH', 'bcs-smtp-manager' ),
+                        ),
+                        'sendgrid'  => array(
+                                'label' => __( 'SendGrid', 'bcs-smtp-manager' ),
+                                'short' => 'SG',
+                                'host'  => 'smtp.sendgrid.net',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => 'apikey',
+                                'user_hint' => __( 'Always the word apikey', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'API key', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Paste a SendGrid API key with Mail Send permission as the password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp',
+                                'link_label' => __( 'SendGrid SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'ses'       => array(
+                                'label' => __( 'Amazon SES', 'bcs-smtp-manager' ),
+                                'short' => 'SES',
+                                // SES servers are per region, so there's no single right default: the user pastes theirs.
+                                'host'  => '',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'SMTP username from the SES console', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Copy the SMTP endpoint for your region from the SES console (SMTP settings) into Server details. Use SES SMTP credentials, not your AWS access keys.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html',
+                                'link_label' => __( 'SES SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'mailgun'   => array(
+                                'label' => __( 'Mailgun', 'bcs-smtp-manager' ),
+                                'short' => 'MG',
+                                'host'  => 'smtp.mailgun.org',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'For example postmaster@mg.yourdomain.com', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Find the SMTP login and password under your sending domain in Mailgun.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/',
+                                'link_label' => __( 'Mailgun SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'brevo'     => array(
+                                'label' => __( 'Brevo', 'bcs-smtp-manager' ),
+                                'short' => 'B',
+                                'host'  => 'smtp-relay.brevo.com',
+                                'port'  => 587,
+                                'enc'   => 'tls',
+                                'user'  => '',
+                                'user_hint' => __( 'Your Brevo SMTP login', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'SMTP key', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Use an SMTP key from Brevo, not your account password.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://help.brevo.com/hc/en-us/articles/209462765',
+                                'link_label' => __( 'Brevo SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'zoho'      => array(
+                                'label' => __( 'Zoho Mail', 'bcs-smtp-manager' ),
+                                'short' => 'Z',
+                                'host'  => 'smtp.zoho.com',
+                                'port'  => 465,
+                                'enc'   => 'ssl',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Zoho email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password or app password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'EU accounts use smtp.zoho.eu. Use an app-specific password if two-factor sign-in is on.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://www.zoho.com/mail/help/zoho-smtp.html',
+                                'link_label' => __( 'Zoho SMTP guide', 'bcs-smtp-manager' ),
+                        ),
+                        'yahoo'     => array(
+                                'label' => __( 'Yahoo Mail', 'bcs-smtp-manager' ),
+                                'short' => 'Y',
+                                'host'  => 'smtp.mail.yahoo.com',
+                                'port'  => 465,
+                                'enc'   => 'ssl',
+                                'user'  => '',
+                                'user_hint' => __( 'Your full Yahoo email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'App password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Generate an app password under Yahoo Account Security.', 'bcs-smtp-manager' ),
+                                'link'  => 'https://help.yahoo.com/kb/SLN15241.html',
+                                'link_label' => __( 'Yahoo app passwords', 'bcs-smtp-manager' ),
+                        ),
+                        'other'     => array(
+                                'label' => __( 'Other SMTP server', 'bcs-smtp-manager' ),
+                                'short' => '',
+                                'host'  => $custom['host'],
+                                'port'  => $custom['port'],
+                                'enc'   => $custom['encryption'],
+                                'user'  => '',
+                                'user_hint' => __( 'Usually your full email address', 'bcs-smtp-manager' ),
+                                'pass_label' => __( 'Password', 'bcs-smtp-manager' ),
+                                'note'  => __( 'Your host or email provider lists these details. Port 587 with TLS works for most servers.', 'bcs-smtp-manager' ),
+                                'link'  => '',
+                                'link_label' => '',
+                        ),
+                );
+        }
+
+        /**
+         * Which preset matches the saved host. Empty string when nothing is saved yet.
+         *
+         * @param string $host Saved SMTP host.
+         * @return string
+         */
+        private function detect_provider( $host ) {
+                $host = strtolower( trim( $host ) );
+                if ( '' === $host ) {
+                        return '';
+                }
+                if ( preg_match( '/^email-smtp\.[a-z0-9-]+\.amazonaws\.com$/', $host ) ) {
+                        return 'ses';
+                }
+                if ( 'smtp.zoho.eu' === $host || 'smtp.zoho.in' === $host ) {
+                        return 'zoho';
+                }
+                if ( 'smtp-mail.outlook.com' === $host ) {
+                        return 'microsoft';
+                }
+                foreach ( $this->provider_presets() as $key => $preset ) {
+                        if ( $preset['host'] && $preset['host'] === $host ) {
+                                return $key;
                         }
                 }
-                $active_days = array_slice( $active_days, -14 ); // cap at 14
-
-                $chart_rows = '';
-                foreach ( $active_days as $i ) {
-                        $s   = $chart_data['success'][ $i ];
-                        $f   = $chart_data['failed'][ $i ];
-                        $u   = $chart_data['unconfirmed'][ $i ];
-                        $tot = $s + $f + $u;
-                        $sw  = $max_total > 0 ? round( ( $s / $max_total ) * 100 ) : 0;
-                        $fw  = $max_total > 0 ? round( ( $f / $max_total ) * 100 ) : 0;
-                        $uw  = $max_total > 0 ? round( ( $u / $max_total ) * 100 ) : 0;
-                        $day = substr( $chart_data['labels'][ $i ], 5 ); // MM-DD
-                        $chart_rows .= '<tr>
-                                <td style="font-size:10px;color:#64748b;width:44px;text-align:right;padding-right:8px;white-space:nowrap">' . esc_html( $day ) . '</td>
-                                <td style="padding:2px 0">
-                                        <table cellpadding="0" cellspacing="0" border="0" width="100%"><tr>
-                                                ' . ( $sw > 0 ? '<td style="background:#10b981;width:' . $sw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                ' . ( $fw > 0 ? '<td style="background:#ef4444;width:' . $fw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                ' . ( $uw > 0 ? '<td style="background:#f59e0b;width:' . $uw . '%;height:14px;border-radius:2px"></td>' : '' ) . '
-                                                <td></td>
-                                        </tr></table>
-                                </td>
-                                <td style="font-size:10px;color:#64748b;width:32px;text-align:right;padding-left:6px">' . $tot . '</td>
-                        </tr>';
-                }
-
-                $success_rate = $summary['total'] > 0 ? round( ( $summary['success'] / $summary['total'] ) * 100 ) : 0;
-
-                return BCS_SMTP_Email_Template::wrapper_open( 'Email Report', 620, 16, '.09' ) . '
-  <!-- Header — bgcolor attr = Outlook fallback; background-color = Yahoo/other fallback; background-image = gradient for supporting clients -->
-  <tr><td bgcolor="#6366f1" style="background-color:#6366f1;background-image:linear-gradient(135deg,#6366f1 0%,#4f46e5 100%);padding:36px 48px">
-    <p style="margin:0;font-size:11px;color:#c7d2fe;letter-spacing:1.5px;text-transform:uppercase;font-weight:600">Email Delivery Report</p>
-    <h1 style="margin:8px 0 4px;font-size:26px;color:#ffffff;font-weight:700;letter-spacing:-0.3px">' . esc_html( $site_name ) . '</h1>
-    <p style="margin:0;font-size:13px;color:#e0e7ff">' . esc_html( $range_label ) . ' &nbsp;&bull;&nbsp; Generated ' . esc_html( $timestamp ) . '</p>
-  </td></tr>
-
-  <!-- Delivery rate banner -->
-  <tr><td bgcolor="#4f46e5" style="background-color:#4f46e5;padding:14px 48px">
-    <p style="margin:0;font-size:13px;color:#e0e7ff">
-      <strong style="color:#ffffff">Delivery Rate: ' . $success_rate . '%</strong>
-      &nbsp;&mdash;&nbsp;' . intval( $summary['success'] ) . ' of ' . intval( $summary['total'] ) . ' emails delivered successfully
-    </p>
-  </td></tr>
-
-  <!-- Stat boxes -->
-  <tr><td style="padding:36px 48px 0">
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-    <tr>
-      <td width="25%" style="padding:0 5px 0 0">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#15803d;line-height:1">' . intval( $summary['success'] ) . '</div>
-            <div style="font-size:11px;color:#16a34a;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Sent</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#fef2f2;border:1px solid #fecaca;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#dc2626;line-height:1">' . intval( $summary['failed'] ) . '</div>
-            <div style="font-size:11px;color:#ef4444;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Failed</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#fffbeb;border:1px solid #fde68a;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#d97706;line-height:1">' . intval( $summary['unconfirmed'] ) . '</div>
-            <div style="font-size:11px;color:#f59e0b;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Unconfirmed</div>
-          </td></tr>
-        </table>
-      </td>
-      <td width="25%" style="padding:0 0 0 5px">
-        <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px">
-          <tr><td style="padding:18px 12px;text-align:center">
-            <div style="font-size:32px;font-weight:700;color:#334155;line-height:1">' . intval( $summary['total'] ) . '</div>
-            <div style="font-size:11px;color:#64748b;margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px">Total</div>
-          </td></tr>
-        </table>
-      </td>
-    </tr>
-    </table>
-  </td></tr>
-
-  <!-- Chart -->
-  <tr><td style="padding:32px 48px 0">
-    <p style="margin:0 0 16px;font-size:14px;font-weight:700;color:#1e293b;letter-spacing:-0.2px">Daily Activity</p>
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-      ' . $chart_rows . '
-    </table>
-    <!-- Legend -->
-    <table cellpadding="0" cellspacing="0" border="0" style="margin-top:16px">
-      <tr>
-        <td style="width:10px;height:10px;background:#10b981;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 16px 0 6px;vertical-align:middle">Sent</td>
-        <td style="width:10px;height:10px;background:#ef4444;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 16px 0 6px;vertical-align:middle">Failed</td>
-        <td style="width:10px;height:10px;background:#f59e0b;border-radius:2px;vertical-align:middle"></td>
-        <td style="font-size:11px;color:#64748b;padding:0 0 0 6px;vertical-align:middle">Unconfirmed</td>
-      </tr>
-    </table>
-  </td></tr>
-
-  <!-- Footer -->
-  <tr><td style="padding:32px 48px;margin-top:32px;border-top:1px solid #e2e8f0">
-    <table width="100%" cellpadding="0" cellspacing="0" border="0">
-      <tr>
-        <td style="text-align:center">
-          <p style="margin:0 0 4px;font-size:12px;color:#64748b">
-            <a href="' . esc_url( $site_url ) . '" style="color:#6366f1;text-decoration:none;font-weight:600">' . esc_html( $site_name ) . '</a>
-          </p>
-          <p style="margin:0;font-size:11px;color:#94a3b8">Automated report by <strong>ByteCoreStack SMTP</strong> &bull; <a href="' . esc_url( $site_url ) . '/wp-admin/options-general.php?page=bcs-smtp-manager" style="color:#94a3b8;text-decoration:none">Manage settings</a></p>
-        </td>
-      </tr>
-    </table>
-  </td></tr>
-' . BCS_SMTP_Email_Template::wrapper_close();
+                return 'other';
         }
 
@@ -893 +1270 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
+        /**
+         * Heading for a day in the email log: Today, Yesterday, or the date.
+         *
+         * @param  string $ymd Site-local date, Y-m-d.
+         * @return string
+         */
+        private function log_day_label( $ymd ) {
+                $today = current_time( 'Y-m-d' );
+                if ( $ymd === $today ) {
+                        return __( 'Today', 'bcs-smtp-manager' );
+                }
+                if ( gmdate( 'Y-m-d', strtotime( $today . ' -1 day' ) ) === $ymd ) {
+                        return __( 'Yesterday', 'bcs-smtp-manager' );
+                }
+                return mysql2date( 'l, F j', $ymd . ' 00:00:00' );
+        }
+
+        /**
+         * Link to the full view of one logged email.
+         *
+         * @param  int $id Log row ID.
+         * @return string
+         */
+        private function email_view_url( $id ) {
+                return add_query_arg( array( 'page' => 'bcs-smtp-manager', 'email' => (int) $id ), admin_url( 'options-general.php' ) );
+        }
+
+        /**
+         * Plain-text version of an HTML email: line breaks kept, links shown as "text (url)".
+         *
+         * @param  string $html
+         * @return string
+         */
+        private function email_text_version( $html ) {
+                $html = preg_replace( '#<(script|style|head|title)\b[^>]*>.*?</\1>#is', '', $html );
+                $html = preg_replace( '/\s+/u', ' ', $html ); // Line breaks in the source aren't real ones; tags decide below.
+                $html = preg_replace( '#<a\b[^>]*href=["\']([^"\']+)["\'][^>]*>(.*?)</a>#is', '$2 ($1)', $html );
+                $html = preg_replace( '#<br\s*/?>#i', "\n", $html );
+                $html = preg_replace( '#<li\b[^>]*>#i', "\n• ", $html );
+                $html = preg_replace( '#</(p|div|tr|table|h[1-6]|li|ul|ol|blockquote)>#i', "\n", $html );
+                $text = html_entity_decode( wp_strip_all_tags( $html ), ENT_QUOTES, 'UTF-8' );
+                $text = implode( "\n", array_map( 'trim', explode( "\n", str_replace( "\r", '', $text ) ) ) );
+                return trim( preg_replace( "/\n{3,}/", "\n\n", $text ) );
+        }
+
+        /**
+         * Full view of one logged email, laid out like a mail client: who it was from and to,
+         * the message (preview, HTML source or text) and, alongside, how it was delivered.
+         * HTML messages render in a sandboxed frame with scripts and forms off.
+         *
+         * @param int $id Log row ID.
+         */
+        private function render_email_view( $id ) {
+                $row  = $id ? $this->db->get_email_log_row( $id ) : null;
+                $back = admin_url( 'options-general.php?page=bcs-smtp-manager#email-log' );
+                ?>
+                <div class="bcs-smtp-wrap wrap bcs-smtp-mailview">
+                        <a class="bcs-smtp-back" href="<?php echo esc_url( $back ); ?>"><span class="dashicons dashicons-arrow-left-alt2" aria-hidden="true"></span><?php esc_html_e( 'Email log', 'bcs-smtp-manager' ); ?></a>
+                <?php
+                if ( ! $row ) {
+                        ?>
+                        <div class="bcs-smtp-panel bcs-smtp-mailview-missing">
+                                <h1><?php esc_html_e( 'This email isn’t in the log', 'bcs-smtp-manager' ); ?></h1>
+                                <p><?php esc_html_e( 'It may be more than 90 days old, or the log was cleared.', 'bcs-smtp-manager' ); ?></p>
+                        </div>
+                </div>
+                        <?php
+                        return;
+                }
+
+                $subject = $row['subject'] ? $row['subject'] : __( '(no subject)', 'bcs-smtp-manager' );
+                $headers = $row['mail_headers'] ? (array) json_decode( $row['mail_headers'], true ) : array();
+                $files   = $row['attachments'] ? (array) json_decode( $row['attachments'], true ) : array();
+                $named   = array();
+                foreach ( $headers as $header ) {
+                        list( $name, $value ) = array_pad( explode( ':', (string) $header, 2 ), 2, '' );
+                        $key = strtolower( trim( $name ) );
+                        if ( in_array( $key, array( 'from', 'cc', 'bcc', 'reply-to' ), true ) ) {
+                                $named[ $key ][] = trim( $value );
+                        }
+                }
+                $has_body = isset( $row['body'] ) && '' !== (string) $row['body'];
+                $is_html  = 'html' === $row['body_format'];
+                $adjacent = $this->db->get_adjacent_log_ids( (int) $row['id'] );
+                // sent_at is stored in site-local time.
+                $sent     = mysql2date( get_option( 'date_format', 'F j, Y' ) . ' ' . get_option( 'time_format', 'g:i a' ), $row['sent_at'] );
+
+                // "Name <address>" → name and address, for the sender line.
+                $from       = (string) $row['from_address'];
+                $from_email = preg_match( '/<([^>]+)>/', $from, $m ) ? $m[1] : $from;
+                $from_name  = trim( preg_replace( '/<[^>]*>/', '', $from ), " \"'" );
+                $from_name  = '' !== $from_name && $from_name !== $from_email ? $from_name : '';
+                $initial    = strtoupper( function_exists( 'mb_substr' ) ? mb_substr( $from_name ? $from_name : $from_email, 0, 1 ) : substr( $from_name ? $from_name : $from_email, 0, 1 ) );
+
+                // The address the sending code asked for, when the mail server sent as someone else.
+                $requested = isset( $named['from'] ) ? $named['from'][0] : '';
+                if ( $requested && false !== stripos( $from, preg_match( '/<([^>]+)>/', $requested, $rm ) ? $rm[1] : $requested ) ) {
+                        $requested = '';
+                }
+
+                $recipients = array(
+                        __( 'to', 'bcs-smtp-manager' )       => $row['to_address'],
+                        __( 'cc', 'bcs-smtp-manager' )       => isset( $named['cc'] ) ? implode( ', ', $named['cc'] ) : '',
+                        __( 'bcc', 'bcs-smtp-manager' )      => isset( $named['bcc'] ) ? implode( ', ', $named['bcc'] ) : '',
+                        __( 'reply to', 'bcs-smtp-manager' ) => isset( $named['reply-to'] ) ? implode( ', ', $named['reply-to'] ) : '',
+                );
+                $explain = array(
+                        'success'     => __( 'Your mail server accepted this email for delivery.', 'bcs-smtp-manager' ),
+                        'failed'      => __( 'This email was not sent. The server’s reply above says why.', 'bcs-smtp-manager' ),
+                        'unconfirmed' => __( 'WordPress handed this email over, but the server didn’t confirm it.', 'bcs-smtp-manager' ),
+                );
+                ?>
+                        <header class="bcs-smtp-mailview-head">
+                                <div class="bcs-smtp-mailview-title">
+                                        <p class="bcs-smtp-mailview-when"><?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?><span><?php echo esc_html( $sent ); ?></span></p>
+                                        <h1><?php echo esc_html( $subject ); ?></h1>
+                                </div>
+                                <nav class="bcs-smtp-mailview-nav" aria-label="<?php esc_attr_e( 'Other emails', 'bcs-smtp-manager' ); ?>">
+                                        <?php
+                                        $steps = array(
+                                                'newer' => array( __( 'Newer', 'bcs-smtp-manager' ), 'arrow-left-alt2' ),
+                                                'older' => array( __( 'Older', 'bcs-smtp-manager' ), 'arrow-right-alt2' ),
+                                        );
+                                        foreach ( $steps as $dir => $step ) :
+                                                $icon  = '<span class="dashicons dashicons-' . esc_attr( $step[1] ) . '" aria-hidden="true"></span>';
+                                                $label = 'newer' === $dir ? $icon . esc_html( $step[0] ) : esc_html( $step[0] ) . $icon;
+                                                if ( $adjacent[ $dir ] ) :
+                                                        ?>
+                                                        <a class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" href="<?php echo esc_url( $this->email_view_url( $adjacent[ $dir ] ) ); ?>"><?php echo $label; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- built from escaped parts. ?></a>
+                                                <?php else : ?>
+                                                        <span class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm is-disabled" aria-disabled="true"><?php echo $label; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- built from escaped parts. ?></span>
+                                                        <?php
+                                                endif;
+                                        endforeach;
+                                        ?>
+                                </nav>
+                        </header>
+
+                        <?php if ( ! empty( $row['error_msg'] ) ) : ?>
+                                <div class="bcs-smtp-log-error bcs-smtp-mailview-error">
+                                        <div class="bcs-smtp-log-error-head">
+                                                <span><?php esc_html_e( 'Server reply', 'bcs-smtp-manager' ); ?></span>
+                                                <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                        </div>
+                                        <pre class="bcs-smtp-mono"><?php echo esc_html( $row['error_msg'] ); ?></pre>
+                                </div>
+                        <?php endif; ?>
+
+                        <div class="bcs-smtp-mailview-grid">
+                                <section class="bcs-smtp-panel bcs-smtp-mailview-message" aria-label="<?php esc_attr_e( 'Message', 'bcs-smtp-manager' ); ?>">
+                                        <div class="bcs-smtp-envelope">
+                                                <span class="bcs-smtp-envelope-avatar" aria-hidden="true"><?php echo esc_html( $initial ); ?></span>
+                                                <div class="bcs-smtp-envelope-lines">
+                                                        <p class="bcs-smtp-envelope-from">
+                                                                <?php if ( $from_name ) : ?>
+                                                                        <strong><?php echo esc_html( $from_name ); ?></strong>
+                                                                        <span>&lt;<?php echo esc_html( $from_email ); ?>&gt;</span>
+                                                                <?php else : ?>
+                                                                        <strong><?php echo esc_html( $from_email ); ?></strong>
+                                                                <?php endif; ?>
+                                                        </p>
+                                                        <?php foreach ( $recipients as $label => $value ) : ?>
+                                                                <?php if ( '' !== trim( (string) $value ) ) : ?>
+                                                                        <p class="bcs-smtp-envelope-to"><span><?php echo esc_html( $label ); ?></span> <?php echo esc_html( $value ); ?></p>
+                                                                <?php endif; ?>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                        </div>
+
+                                        <?php if ( $has_body ) : ?>
+                                                <div class="bcs-smtp-mailview-toolbar">
+                                                        <div class="bcs-smtp-segmented" role="radiogroup" aria-label="<?php esc_attr_e( 'Show the message as', 'bcs-smtp-manager' ); ?>">
+                                                                <?php if ( $is_html ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_mailview_mode" value="preview" checked><span><?php esc_html_e( 'Preview', 'bcs-smtp-manager' ); ?></span></label>
+                                                                        <label><input type="radio" name="bcs_smtp_mailview_mode" value="source"><span><?php esc_html_e( 'HTML', 'bcs-smtp-manager' ); ?></span></label>
+                                                                <?php endif; ?>
+                                                                <label><input type="radio" name="bcs_smtp_mailview_mode" value="text" <?php checked( ! $is_html ); ?>><span><?php esc_html_e( 'Text', 'bcs-smtp-manager' ); ?></span></label>
+                                                        </div>
+                                                        <?php if ( $is_html ) : ?>
+                                                                <div class="bcs-smtp-segmented bcs-smtp-device" role="radiogroup" aria-label="<?php esc_attr_e( 'Preview width', 'bcs-smtp-manager' ); ?>" data-mode="preview">
+                                                                        <label title="<?php esc_attr_e( 'Desktop', 'bcs-smtp-manager' ); ?>"><input type="radio" name="bcs_smtp_mailview_device" value="desktop" checked><span><svg class="bcs-smtp-device-icon" viewBox="0 0 20 20" aria-hidden="true" focusable="false"><rect x="2.5" y="3.5" width="15" height="10" rx="1.5"/><path d="M7 17h6M10 13.5V17"/></svg><span class="screen-reader-text"><?php esc_html_e( 'Desktop', 'bcs-smtp-manager' ); ?></span></span></label>
+                                                                        <label title="<?php esc_attr_e( 'Mobile', 'bcs-smtp-manager' ); ?>"><input type="radio" name="bcs_smtp_mailview_device" value="mobile"><span><svg class="bcs-smtp-device-icon" viewBox="0 0 20 20" aria-hidden="true" focusable="false"><rect x="6" y="2.5" width="8" height="15" rx="1.8"/><path d="M9 15h2"/></svg><span class="screen-reader-text"><?php esc_html_e( 'Mobile', 'bcs-smtp-manager' ); ?></span></span></label>
+                                                                </div>
+                                                        <?php endif; ?>
+                                                </div>
+                                        <?php endif; ?>
+
+                                        <div class="bcs-smtp-mailview-body">
+                                                <?php if ( $has_body && $is_html ) : ?>
+                                                        <div class="bcs-smtp-mailframe-stage" data-mode="preview">
+                                                                <div class="bcs-smtp-mailframe-wrap">
+                                                                        <?php // Full encoding (double_encode on) keeps entities in the email exactly as sent. ?>
+                                                                        <iframe class="bcs-smtp-mailframe" scrolling="no" title="<?php esc_attr_e( 'Email preview', 'bcs-smtp-manager' ); ?>" sandbox="allow-same-origin allow-popups allow-popups-to-escape-sandbox" referrerpolicy="no-referrer" srcdoc="<?php echo htmlspecialchars( '<base target="_blank">' . $row['body'], ENT_QUOTES, 'UTF-8', true ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- fully encoded for the attribute. ?>"></iframe>
+                                                                </div>
+                                                        </div>
+                                                        <div class="bcs-smtp-mailview-source" data-mode="source" hidden>
+                                                                <div class="bcs-smtp-mailview-source-head">
+                                                                        <span><?php esc_html_e( 'HTML source', 'bcs-smtp-manager' ); ?></span>
+                                                                        <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                                                </div>
+                                                                <pre class="bcs-smtp-mono"><?php echo esc_html( $row['body'] ); ?></pre>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( $has_body ) : ?>
+                                                        <div class="bcs-smtp-mailview-source bcs-smtp-mailview-plain" data-mode="text" <?php echo $is_html ? 'hidden' : ''; ?>>
+                                                                <div class="bcs-smtp-mailview-source-head">
+                                                                        <span><?php echo $is_html ? esc_html__( 'Text version', 'bcs-smtp-manager' ) : esc_html__( 'Plain text', 'bcs-smtp-manager' ); ?></span>
+                                                                        <button type="button" class="bcs-smtp-copy-btn"><span class="dashicons dashicons-admin-page" aria-hidden="true"></span><span class="bcs-smtp-copy-label"><?php esc_html_e( 'Copy', 'bcs-smtp-manager' ); ?></span></button>
+                                                                </div>
+                                                                <pre><?php echo esc_html( $is_html ? $this->email_text_version( $row['body'] ) : $row['body'] ); ?></pre>
+                                                        </div>
+                                                <?php else : ?>
+                                                        <div class="bcs-smtp-mailview-empty">
+                                                                <span class="dashicons dashicons-hidden" aria-hidden="true"></span>
+                                                                <strong><?php esc_html_e( 'The message wasn’t saved', 'bcs-smtp-manager' ); ?></strong>
+                                                                <p><?php esc_html_e( 'This email was sent before the log started keeping message content.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                <?php endif; ?>
+                                        </div>
+                                </section>
+
+                                <aside class="bcs-smtp-panel bcs-smtp-mailview-meta" aria-labelledby="bcs-smtp-mailview-meta-title">
+                                        <h2 id="bcs-smtp-mailview-meta-title"><?php esc_html_e( 'Delivery', 'bcs-smtp-manager' ); ?></h2>
+                                        <div class="bcs-smtp-mailview-verdict bcs-smtp-mailview-verdict--<?php echo esc_attr( $row['status'] ); ?>">
+                                                <?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?>
+                                                <p><?php echo esc_html( isset( $explain[ $row['status'] ] ) ? $explain[ $row['status'] ] : '' ); ?></p>
+                                        </div>
+                                        <dl class="bcs-smtp-mailview-facts">
+                                                <div><dt><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd><?php echo esc_html( $sent ); ?></dd></div>
+                                                <?php if ( $requested ) : ?>
+                                                        <div>
+                                                                <dt><?php esc_html_e( 'Requested sender', 'bcs-smtp-manager' ); ?></dt>
+                                                                <dd class="bcs-smtp-mono"><?php echo esc_html( $requested ); ?></dd>
+                                                                <dd class="bcs-smtp-mailview-note"><?php esc_html_e( 'Your mail server sent it from your connected address instead.', 'bcs-smtp-manager' ); ?></dd>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( $has_body ) : ?>
+                                                        <div>
+                                                                <dt><?php esc_html_e( 'Format', 'bcs-smtp-manager' ); ?></dt>
+                                                                <dd>
+                                                                        <?php
+                                                                        /* translators: 1: HTML or Plain text, 2: size such as "8 KB". */
+                                                                        printf( esc_html__( '%1$s · %2$s', 'bcs-smtp-manager' ), $is_html ? esc_html__( 'HTML', 'bcs-smtp-manager' ) : esc_html__( 'Plain text', 'bcs-smtp-manager' ), esc_html( size_format( strlen( $row['body'] ) ) ) );
+                                                                        ?>
+                                                                </dd>
+                                                        </div>
+                                                <?php endif; ?>
+                                                <?php if ( ! empty( $row['provider'] ) ) : ?>
+                                                        <div><dt><?php esc_html_e( 'Provider', 'bcs-smtp-manager' ); ?></dt><dd><?php echo esc_html( $row['provider'] ); ?></dd></div>
+                                                <?php endif; ?>
+                                                <?php if ( ! empty( $row['message_id'] ) ) : ?>
+                                                        <div><dt><?php esc_html_e( 'Tracking ID', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $row['message_id'] ); ?></dd></div>
+                                                <?php endif; ?>
+                                        </dl>
+
+                                        <?php if ( $files ) : ?>
+                                                <h3><?php esc_html_e( 'Attachments', 'bcs-smtp-manager' ); ?></h3>
+                                                <ul class="bcs-smtp-mailview-atts">
+                                                        <?php foreach ( $files as $file ) : ?>
+                                                                <li><span class="dashicons dashicons-media-default" aria-hidden="true"></span><?php echo esc_html( $file ); ?></li>
+                                                        <?php endforeach; ?>
+                                                </ul>
+                                                <p class="bcs-smtp-hint"><?php esc_html_e( 'File names only. The files themselves aren’t stored.', 'bcs-smtp-manager' ); ?></p>
+                                        <?php endif; ?>
+
+                                        <?php if ( $headers ) : ?>
+                                                <details class="bcs-smtp-mailview-headers">
+                                                        <summary>
+                                                                <?php
+                                                                /* translators: %d: number of email headers. */
+                                                                printf( esc_html( _n( 'All headers (%d)', 'All headers (%d)', count( $headers ), 'bcs-smtp-manager' ) ), (int) count( $headers ) );
+                                                                ?>
+                                                        </summary>
+                                                        <pre class="bcs-smtp-mono"><?php echo esc_html( implode( "\n", $headers ) ); ?></pre>
+                                                </details>
+                                        <?php endif; ?>
+                                </aside>
+                        </div>
+                </div>
+                <?php
+        }
+
         private function render_email_log_row( $row ) {
-                $status_map = array(
-                        'success'     => array( 'class' => 'bcs-smtp-badge-success', 'label' => __( '✓ Sent', 'bcs-smtp-manager' ) ),
-                        'failed'      => array( 'class' => 'bcs-smtp-badge-error',   'label' => __( '✗ Failed', 'bcs-smtp-manager' ) ),
-                        'unconfirmed' => array( 'class' => 'bcs-smtp-badge-warning', 'label' => __( '? Unconfirmed', 'bcs-smtp-manager' ) ),
-                );
-                $st = isset( $status_map[ $row['status'] ] ) ? $status_map[ $row['status'] ] : array( 'class' => '', 'label' => esc_html( $row['status'] ) );
-
-                $is_failed    = 'failed' === $row['status'];
-                $has_body     = ! empty( $row['body'] );
-                $resend_count = isset( $row['resend_count'] ) ? (int) $row['resend_count'] : 0;
+                $is_failed = 'failed' === $row['status'];
+                $subject   = $row['subject'] ? $row['subject'] : __( '(no subject)', 'bcs-smtp-manager' );
+                // sent_at is stored in site-local time.
+                $time      = mysql2date( get_option( 'time_format', 'g:i a' ), $row['sent_at'] );
                 ?>
-                <tr>
-                        <td style="font-size:11px;white-space:nowrap;font-family:monospace"><?php echo esc_html( wp_date( 'M j, Y g:i A', strtotime( $row['sent_at'] ) ) ); ?></td>
-                        <td style="max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap" title="<?php echo esc_attr( $row['subject'] ); ?>"><?php echo esc_html( $row['subject'] ?: __( '(no subject)', 'bcs-smtp-manager' ) ); ?></td>
-                        <td style="font-size:11px;font-family:monospace;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap"><?php echo esc_html( $row['from_address'] ); ?></td>
-                        <td style="font-size:11px;font-family:monospace;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap"><?php echo esc_html( $row['to_address'] ); ?></td>
-                        <td><span class="bcs-smtp-badge <?php echo esc_attr( $st['class'] ); ?>"><?php echo esc_html( $st['label'] ); ?></span></td>
-                        <td style="font-size:10px;color:var(--bcs-smtp-text-3);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap" title="<?php echo esc_attr( $row['error_msg'] ); ?>"><?php echo esc_html( $row['error_msg'] ?: '—' ); ?></td>
-                        <td style="white-space:nowrap">
-                                <?php if ( $is_failed ) : ?>
-                                        <button type="button"
-                                                class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-resend-btn"
-                                                data-log-id="<?php echo esc_attr( $row['id'] ); ?>"
-                                                <?php echo $has_body ? '' : 'disabled title="' . esc_attr__( 'No stored content — enable "Store failed email content" in the Config tab before this failure occurred.', 'bcs-smtp-manager' ) . '"'; ?>>
-                                                <span class="dashicons dashicons-controls-repeat"></span><?php esc_html_e( 'Resend', 'bcs-smtp-manager' ); ?>
-                                        </button>
-                                        <?php if ( $resend_count > 0 ) : ?>
-                                                <div style="font-size:10px;color:var(--bcs-smtp-text-3);margin-top:4px">
-                                                        <?php
-                                                        printf(
-                                                                /* translators: %d: number of times this email has been resent. */
-                                                                esc_html( _n( 'Resent %d time', 'Resent %d times', $resend_count, 'bcs-smtp-manager' ) ),
-                                                                esc_html( $resend_count )
-                                                        );
-                                                        ?>
-                                                </div>
-                                        <?php endif; ?>
-                                <?php else : ?>
-                                        <span style="color:var(--bcs-smtp-text-3)">—</span>
-                                <?php endif; ?>
+                <tr class="<?php echo $is_failed ? 'is-failed' : ''; ?>">
+                        <td class="bcs-smtp-col-date bcs-smtp-mono"><?php echo esc_html( $time ); ?></td>
+                        <td class="bcs-smtp-col-subject">
+                                <span class="bcs-smtp-cell-main"><?php echo esc_html( $subject ); ?></span>
+                                <span class="bcs-smtp-cell-to bcs-smtp-mono" aria-hidden="true"><?php echo esc_html( $row['to_address'] ); ?></span>
+                        </td>
+                        <td class="bcs-smtp-col-to bcs-smtp-mono"><?php echo esc_html( $row['to_address'] ); ?></td>
+                        <td class="bcs-smtp-col-status"><?php echo $this->status_html( $row['status'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped in status_html(). ?></td>
+                        <td class="bcs-smtp-col-more">
+                                <a class="bcs-smtp-view-btn" href="<?php echo esc_url( $this->email_view_url( (int) $row['id'] ) ); ?>">
+                                        <?php esc_html_e( 'View', 'bcs-smtp-manager' ); ?>
+                                        <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                        <span class="screen-reader-text">
+                                                <?php
+                                                /* translators: %s: email subject. */
+                                                printf( esc_html__( 'email: %s', 'bcs-smtp-manager' ), esc_html( $subject ) );
+                                                ?>
+                                        </span>
+                                </a>
                         </td>
                 </tr>
@@ -939 +1582 @@
         }
 
+        /**
+         * Overview health banner. Reads the saved state every time, so it can be re-rendered
+         * over AJAX after a save, test or health check and never shows a stale verdict.
+         */
+        public function render_health_banner() {
+                $smtp_host    = get_option( 'bcs_smtp_host', '' );
+                $is_first_run = '' === trim( (string) $smtp_host );
+                $smtp_enabled = (bool) get_option( 'bcs_smtp_enabled', false );
+                $smtp_auth    = (bool) get_option( 'bcs_smtp_auth', true );
+                $smtp_port    = (int) get_option( 'bcs_smtp_port', 587 );
+                $from_email   = get_option( 'bcs_from_email', get_option( 'admin_email' ) );
+                $monitor_on   = BCS_SMTP_Monitor::is_active();
+                $last_check   = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
+                $last_success = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $failures     = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $next_check   = $monitor_on ? wp_next_scheduled( 'bcs_smtp_health_check' ) : false;
+                $alert_on     = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+                $alert_chs    = BCS_SMTP_Monitor::get_channels();
+                $ch_labels    = array(
+                        'slack'       => __( 'Slack', 'bcs-smtp-manager' ),
+                        'teams'       => __( 'Microsoft Teams', 'bcs-smtp-manager' ),
+                        'google_chat' => __( 'Google Chat', 'bcs-smtp-manager' ),
+                        'discord'     => __( 'Discord', 'bcs-smtp-manager' ),
+                        'custom'      => __( 'Custom webhook', 'bcs-smtp-manager' ),
+                );
+
+                if ( ! $smtp_enabled || $is_first_run ) {
+                        $health = array( 'tone' => 'off', 'title' => __( 'WordPress is not using SMTP yet', 'bcs-smtp-manager' ), 'text' => __( 'Emails go out through PHP mail(), which inboxes often reject. Connect a mail server to fix that.', 'bcs-smtp-manager' ) );
+                } elseif ( null === $last_success ) {
+                        $health = array( 'tone' => 'warn', 'title' => __( 'Connection not checked yet', 'bcs-smtp-manager' ), 'text' => __( 'Run a health check to confirm WordPress can send through your mail server.', 'bcs-smtp-manager' ) );
+                } elseif ( $last_success ) {
+                        $health = array( 'tone' => 'ok', 'title' => __( 'Mail is flowing', 'bcs-smtp-manager' ), 'text' => $smtp_auth ? __( 'WordPress signed in to your mail server and it agreed to send on the last check.', 'bcs-smtp-manager' ) : __( 'Your mail server agreed to send without signing in on the last check.', 'bcs-smtp-manager' ) );
+                } else {
+                        $health = array(
+                                'tone'  => 'bad',
+                                'title' => __( 'Mail is not getting through', 'bcs-smtp-manager' ),
+                                /* translators: %d: number of consecutive failed health checks. */
+                                'text'  => sprintf( _n( 'The last health check failed (%d in a row). Check your sign-in details on the Connection tab.', 'The last health checks failed (%d in a row). Check your sign-in details on the Connection tab.', max( 1, $failures ), 'bcs-smtp-manager' ), max( 1, $failures ) ),
+                        );
+                }
+                ?>
+                <section class="bcs-smtp-hero bcs-smtp-hero--<?php echo esc_attr( $health['tone'] ); ?>" aria-labelledby="bcs-smtp-hero-title">
+                        <div class="bcs-smtp-hero-main">
+                                <span class="bcs-smtp-beacon" aria-hidden="true"><span></span></span>
+                                <div class="bcs-smtp-hero-copy">
+                                        <h2 id="bcs-smtp-hero-title"><?php echo esc_html( $health['title'] ); ?></h2>
+                                        <p><?php echo esc_html( $health['text'] ); ?></p>
+                                </div>
+                                <div class="bcs-smtp-hero-actions">
+                                        <?php if ( 'ok' !== $health['tone'] && 'warn' !== $health['tone'] ) : ?>
+                                                <button type="button" class="bcs-smtp-btn bcs-smtp-btn-primary" data-goto="connection">
+                                                        <?php echo $is_first_run ? esc_html__( 'Set up in a minute', 'bcs-smtp-manager' ) : esc_html__( 'Fix the connection', 'bcs-smtp-manager' ); ?>
+                                                </button>
+                                        <?php endif; ?>
+                                        <?php if ( ! $is_first_run ) : ?>
+                                                <button type="button" class="bcs-smtp-btn bcs-smtp-btn-secondary" data-check-now data-msg="#bcs-smtp-overview-msg">
+                                                        <?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?>
+                                                </button>
+                                        <?php endif; ?>
+                                </div>
+                        </div>
+                        <?php if ( ! $is_first_run ) : ?>
+                        <dl class="bcs-smtp-hero-facts">
+                                <div><dt><?php esc_html_e( 'Server', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $smtp_host . ':' . $smtp_port ); ?></dd></div>
+                                <div><dt><?php esc_html_e( 'Sending as', 'bcs-smtp-manager' ); ?></dt><dd class="bcs-smtp-mono"><?php echo esc_html( $from_email ? $from_email : '—' ); ?></dd></div>
+                                <div><dt><?php esc_html_e( 'Last check', 'bcs-smtp-manager' ); ?></dt><dd>
+                                        <?php
+                                        /* translators: %s: human-readable time difference, e.g. "5 mins". */
+                                        echo $last_check ? esc_html( sprintf( __( '%s ago', 'bcs-smtp-manager' ), $this->check_minutes( $last_check ) ) ) : esc_html__( 'Not yet', 'bcs-smtp-manager' );
+                                        ?>
+                                </dd></div>
+                                <div><dt><?php esc_html_e( 'Next check', 'bcs-smtp-manager' ); ?></dt><dd>
+                                        <?php
+                                        if ( ! $monitor_on ) {
+                                                esc_html_e( 'Automatic checks off', 'bcs-smtp-manager' );
+                                        } elseif ( $next_check ) {
+                                                /* translators: %s: human-readable time difference, e.g. "3 mins". */
+                                                echo esc_html( $next_check > time() ? sprintf( __( 'in %s', 'bcs-smtp-manager' ), $this->check_minutes( $next_check, true ) ) : __( 'due now', 'bcs-smtp-manager' ) );
+                                        } else {
+                                                esc_html_e( 'Scheduling…', 'bcs-smtp-manager' );
+                                        }
+                                        ?>
+                                </dd></div>
+                                <div><dt><?php esc_html_e( 'Alerts go to', 'bcs-smtp-manager' ); ?></dt><dd><?php echo ( $alert_on && $alert_chs ) ? esc_html( BCS_SMTP_Monitor::channel_list_label( $alert_chs ) ) : esc_html__( 'Nowhere yet', 'bcs-smtp-manager' ); ?></dd></div>
+                        </dl>
+                        <?php endif; ?>
+                </section>
+                <?php
+        }
+
+        /**
+         * AJAX — return the freshly rendered health banner.
+         */
+        public function ajax_get_health_banner() {
+                check_ajax_referer( 'bcs_smtp_nonce', 'nonce' );
+                if ( ! current_user_can( 'manage_options' ) ) { wp_send_json_error( __( 'Permission denied.', 'bcs-smtp-manager' ) ); }
+                ob_start();
+                $this->render_health_banner();
+                wp_send_json_success( array( 'html' => ob_get_clean() ) );
+        }
+
+        /**
+         * The site's own addresses, left out of "People reached" so it counts visitors and
+         * customers only: admin email and administrators, the sending address, report recipients,
+         * Contact Form 7 notification ("Mail") recipients, and anyone on the sending domain.
+         *
+         * @return array { 0: string[] addresses, 1: string[] domains }
+         */
+        private function internal_recipients() {
+                $emails   = array( get_option( 'admin_email' ), get_option( 'bcs_from_email', '' ) );
+                $emails   = array_merge( $emails, explode( ',', (string) get_option( 'bcs_report_emails', '' ) ) );
+                $emails   = array_merge( $emails, wp_list_pluck( get_users( array( 'role' => 'administrator', 'fields' => array( 'user_email' ) ) ), 'user_email' ) );
+
+                if ( class_exists( 'WPCF7_ContactForm' ) ) {
+                        foreach ( WPCF7_ContactForm::find() as $form ) {
+                                $mail = $form->prop( 'mail' );
+                                if ( ! empty( $mail['recipient'] ) ) {
+                                        $to = str_replace( '[_site_admin_email]', get_option( 'admin_email' ), $mail['recipient'] );
+                                        // Form-field tags like [your-email] are the visitor, not the team.
+                                        $emails = array_merge( $emails, explode( ',', preg_replace( '/\[[^\]]*\]/', '', $to ) ) );
+                                }
+                        }
+                }
+
+                $emails  = array_values( array_unique( array_filter( array_map( 'strtolower', array_map( 'trim', $emails ) ), 'is_email' ) ) );
+                $from    = strtolower( (string) get_option( 'bcs_from_email', '' ) );
+                $domains = ( is_email( $from ) && false !== strpos( $from, '@' ) ) ? array( substr( strrchr( $from, '@' ), 1 ) ) : array();
+
+                return apply_filters( 'bcs_smtp_internal_recipients', array( $emails, $domains ) );
+        }
+
         /* ═══════════════════════════════════════════════════════════════════
            PAGE RENDER
@@ -946 +1720 @@
                 if ( ! current_user_can( 'manage_options' ) ) { return; }
 
-                $info          = $this->mailer->detect_smtp_plugin();
+                // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only view, capability checked above.
+                if ( isset( $_GET['email'] ) ) {
+                        $this->render_email_view( absint( $_GET['email'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                        return;
+                }
+
 
                 // SMTP settings
+                $smtp_host     = get_option( 'bcs_smtp_host', '' );
+                $is_first_run  = '' === trim( $smtp_host );
                 $smtp_enabled  = (bool) get_option( 'bcs_smtp_enabled', false );
                 $from_email    = get_option( 'bcs_from_email', get_option( 'admin_email' ) );
                 $from_name     = get_option( 'bcs_from_name',  get_option( 'blogname' ) );
-                $smtp_host     = get_option( 'bcs_smtp_host', '' );
                 $smtp_port     = (int) get_option( 'bcs_smtp_port', 587 );
                 $smtp_enc      = get_option( 'bcs_smtp_encryption', 'tls' );
@@ -958 +1738 @@
                 $smtp_auth     = (bool) get_option( 'bcs_smtp_auth', true );
                 $smtp_user     = get_option( 'bcs_smtp_username', '' );
+                $has_pw        = ! empty( get_option( 'bcs_smtp_password', '' ) );
+                $pw_unreadable = $has_pw && $this->mailer->is_password_unreadable();
+                $presets       = $this->provider_presets();
+                $provider      = $this->detect_provider( $smtp_host );
+                $preset        = $provider ? $presets[ $provider ] : $presets['other'];
 
                 // Monitor settings
-                $monitor_on    = (bool) get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false );
-                $check_interval = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-                $threshold     = (int) get_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, 2 );
-                $last_check    = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
-                $last_success  = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $monitor_on     = BCS_SMTP_Monitor::is_active();
+                $last_check     = (int) get_option( BCS_SMTP_OPT_LAST_CHECK, 0 );
+                $last_success   = get_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, null );
+                $failures       = (int) get_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+                $next_check     = $monitor_on ? wp_next_scheduled( 'bcs_smtp_health_check' ) : false;
 
                 // Alert settings
-                $alert_enabled = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
-                $alert_channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-
-                // Summary for stat row
-                $smtp_status   = is_null( $last_success ) ? 'unknown' : ( $last_success ? 'ok' : 'fail' );
-
-                // Report defaults (30-day)
-                $summary_30d   = $this->db->get_email_summary( '30days' );
+                $alert_enabled  = (bool) get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+                $alert_chs      = BCS_SMTP_Monitor::get_channels();
+                $channels       = array(
+                        'slack'       => array( 'label' => __( 'Slack', 'bcs-smtp-manager' ),          'short' => 'S' ),
+                        'teams'       => array( 'label' => __( 'Microsoft Teams', 'bcs-smtp-manager' ), 'short' => 'T' ),
+                        'google_chat' => array( 'label' => __( 'Google Chat', 'bcs-smtp-manager' ),     'short' => 'GC' ),
+                        'discord'     => array( 'label' => __( 'Discord', 'bcs-smtp-manager' ),         'short' => 'D' ),
+                        'custom'      => array( 'label' => __( 'Custom webhook', 'bcs-smtp-manager' ),  'short' => '{ }' ),
+                );
+
+                // Overview data
+                $summary_30d  = $this->db->get_email_summary( '30days' );
+                $rate         = $summary_30d['total'] > 0 ? round( ( $summary_30d['success'] / $summary_30d['total'] ) * 100, 1 ) : null;
+                $chart        = $this->db->get_email_chart_data( '30days' );
 
                 // Scheduled report settings
                 $report_schedule_enabled = (bool) get_option( 'bcs_report_schedule_enabled', false );
                 $report_emails           = get_option( 'bcs_report_emails', '' );
-                $report_frequency        = get_option( 'bcs_report_frequency', 'weekly' );
-
-                // Resend settings
-                $store_failed_body     = (bool) get_option( BCS_SMTP_OPT_STORE_FAILED_BODY, false );
-                $failed_body_retention = (int) get_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
+
+
+                $setup_items = array(
+                        array( 'done' => $smtp_enabled && ! $is_first_run, 'label' => __( 'Connect your mail server', 'bcs-smtp-manager' ), 'goto' => 'connection' ),
+                        array( 'done' => $alert_enabled && $alert_chs, 'label' => __( 'Choose where failure alerts go', 'bcs-smtp-manager' ), 'goto' => 'alerts' ),
+                        array( 'done' => $report_schedule_enabled,          'label' => __( 'Get a delivery report by email', 'bcs-smtp-manager' ), 'goto' => 'reports' ),
+                );
+                $setup_left = count( array_filter( $setup_items, function ( $i ) { return ! $i['done']; } ) );
+
+                $tabs = array(
+                        'overview'   => __( 'Overview', 'bcs-smtp-manager' ),
+                        'connection' => __( 'Connection', 'bcs-smtp-manager' ),
+                        'alerts'     => __( 'Alerts', 'bcs-smtp-manager' ),
+                        'reports'    => __( 'Reports', 'bcs-smtp-manager' ),
+                        'email-log'  => __( 'Email log', 'bcs-smtp-manager' ),
+                );
+                $date_ranges = array(
+                        'today'      => __( 'Today', 'bcs-smtp-manager' ),
+                        'yesterday'  => __( 'Yesterday', 'bcs-smtp-manager' ),
+                        '7days'      => __( 'Last 7 days', 'bcs-smtp-manager' ),
+                        '30days'     => __( 'Last 30 days', 'bcs-smtp-manager' ),
+                        'this_week'  => __( 'This week', 'bcs-smtp-manager' ),
+                        'last_week'  => __( 'Last week', 'bcs-smtp-manager' ),
+                        'this_month' => __( 'This month', 'bcs-smtp-manager' ),
+                        '3months'    => __( 'Last 3 months', 'bcs-smtp-manager' ),
+                );
+                $time_fmt = get_option( 'time_format', 'g:i a' );
                 ?>
-                <div class="bcs-smtp-wrap wrap">
-
-                        <!-- ═══ HEADER ═══════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-header">
-                                <div class="bcs-smtp-header-left">
-                                        <div class="bcs-smtp-header-icon">
-                                                <span class="dashicons dashicons-email-alt"></span>
-                                        </div>
+                <div class="bcs-smtp-wrap wrap" data-first-run="<?php echo $is_first_run ? '1' : '0'; ?>">
+
+                        <header class="bcs-smtp-header">
+                                <div class="bcs-smtp-brand">
+                                        <span class="bcs-smtp-brand-mark" aria-hidden="true">
+                                                <svg viewBox="0 0 24 24" focusable="false"><rect x="3.5" y="6" width="17" height="12.5" rx="2.5"/><path d="m4.5 7.5 7.5 5.75 7.5-5.75"/></svg>
+                                        </span>
                                         <div>
-                                                <h1><?php esc_html_e( 'ByteCoreStack - SMTP & Health Monitor', 'bcs-smtp-manager' ); ?></h1>
-                                                <p class="bcs-smtp-header-sub"><?php esc_html_e( 'WordPress email monitoring & alerting by ByteCore Stack', 'bcs-smtp-manager' ); ?></p>
+                                                <h1><?php esc_html_e( 'SMTP & Health Monitor', 'bcs-smtp-manager' ); ?></h1>
+                                                <p class="bcs-smtp-header-sub">
+                                                        <?php echo esc_html( wp_parse_url( home_url(), PHP_URL_HOST ) ); ?>
+                                                        <span aria-hidden="true">·</span>
+                                                        <?php
+                                                        /* translators: %s: plugin version number. */
+                                                        printf( esc_html__( 'ByteCoreStack · v%s', 'bcs-smtp-manager' ), esc_html( BCS_SMTP_VERSION ) );
+                                                        ?>
+                                                </p>
                                         </div>
                                 </div>
-                                <div class="bcs-smtp-header-right">
-                                        <span class="bcs-smtp-header-badge">v<?php echo esc_html( BCS_SMTP_VERSION ); ?></span>
+                                <div class="bcs-smtp-header-actions">
+                                        <button type="button" class="bcs-smtp-btn bcs-smtp-btn-primary" data-goto="connection" data-focus="#bcs-smtp-test-to">
+                                                <?php esc_html_e( 'Send test email', 'bcs-smtp-manager' ); ?>
+                                        </button>
                                 </div>
-                        </div>
-
-                        <!-- ═══ STAT ROW ══════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-stat-row">
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo 'ok' === $smtp_status ? 'good' : ( 'fail' === $smtp_status ? 'bad' : '' ); ?>">
-                                                <span class="dashicons dashicons-yes-alt"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo 'ok' === $smtp_status ? 'good' : ( 'fail' === $smtp_status ? 'bad' : '' ); ?>">
-                                                        <?php echo 'ok' === $smtp_status ? '✓' : ( 'fail' === $smtp_status ? '✗' : '—' ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'SMTP Status', 'bcs-smtp-manager' ); ?></div>
+                        </header>
+
+                        <nav class="bcs-smtp-tabs" role="tablist" aria-label="<?php esc_attr_e( 'SMTP Manager sections', 'bcs-smtp-manager' ); ?>">
+                                <span class="bcs-smtp-tab-pill" aria-hidden="true"></span>
+                                <?php
+                                $tab_icons = array(
+                                        'overview'   => 'dashboard',
+                                        'connection' => 'admin-plugins',
+                                        'alerts'     => 'bell',
+                                        'reports'    => 'chart-bar',
+                                        'email-log'  => 'email-alt',
+                                );
+                                foreach ( $tabs as $key => $label ) :
+                                        ?>
+                                        <button type="button" role="tab" class="bcs-smtp-tab" id="bcs-smtp-tab-<?php echo esc_attr( $key ); ?>" data-panel="<?php echo esc_attr( $key ); ?>" aria-controls="bcs-smtp-panel-<?php echo esc_attr( $key ); ?>" aria-selected="false" tabindex="-1">
+                                                <span class="dashicons dashicons-<?php echo esc_attr( $tab_icons[ $key ] ); ?>" aria-hidden="true"></span>
+                                                <?php echo esc_html( $label ); ?>
+                                                <?php if ( 'connection' === $key ) : ?>
+                                                        <span class="bcs-smtp-tab-dot" id="bcs-smtp-conn-dot" aria-hidden="true"></span>
+                                                        <span class="screen-reader-text" id="bcs-smtp-conn-dot-label"></span>
+                                                <?php endif; ?>
+                                                <?php if ( 'email-log' === $key && $summary_30d['failed'] > 0 ) : ?>
+                                                        <span class="bcs-smtp-tab-count" title="<?php esc_attr_e( 'Failed in the last 30 days', 'bcs-smtp-manager' ); ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></span>
+                                                <?php endif; ?>
+                                        </button>
+                                <?php endforeach; ?>
+                        </nav>
+
+                        <div id="bcs-smtp-toast" class="bcs-smtp-toast" role="status" aria-live="polite"></div>
+
+                        <!-- ═══ PANEL: Overview ═══════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-overview" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-overview">
+
+                                <div id="bcs-smtp-health-banner"><?php $this->render_health_banner(); ?></div>
+                                <div id="bcs-smtp-overview-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+
+
+                                <div class="bcs-smtp-overview-grid">
+                                        <section class="bcs-smtp-panel bcs-smtp-activity" aria-labelledby="bcs-smtp-activity-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-activity-title"><?php esc_html_e( 'Email activity', 'bcs-smtp-manager' ); ?></h2>
+                                                        <div class="bcs-smtp-segmented bcs-smtp-segmented--sm" role="radiogroup" aria-label="<?php esc_attr_e( 'Time range', 'bcs-smtp-manager' ); ?>">
+                                                                <?php foreach ( array( '7days' => __( '7 days', 'bcs-smtp-manager' ), '30days' => __( '30 days', 'bcs-smtp-manager' ), '3months' => __( '90 days', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_ov_range" class="bcs-smtp-ov-range" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" <?php checked( '30days', $val ); ?>><span><?php echo esc_html( $label ); ?></span></label>
+                                                                <?php endforeach; ?>
+                                                        </div>
+                                                </div>
+                                                <dl class="bcs-smtp-figures" id="bcs-smtp-ov-figures">
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--sent" aria-hidden="true"></span><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd data-fig="success"><?php echo esc_html( number_format_i18n( $summary_30d['success'] ) ); ?></dd></div>
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--bad" aria-hidden="true"></span><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></dt><dd data-fig="failed" class="<?php echo $summary_30d['failed'] > 0 ? 'is-bad' : ''; ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></dd></div>
+                                                        <div><dt><span class="bcs-smtp-key bcs-smtp-key--warn" aria-hidden="true"></span><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></dt><dd data-fig="unconfirmed"><?php echo esc_html( number_format_i18n( $summary_30d['unconfirmed'] ) ); ?></dd></div>
+                                                        <div><dt><?php esc_html_e( 'Delivered', 'bcs-smtp-manager' ); ?></dt><dd data-fig="rate"><?php echo null === $rate ? '—' : esc_html( number_format_i18n( $rate, 1 ) ) . '<small>%</small>'; ?></dd></div>
+                                                </dl>
+                                                <div class="bcs-smtp-linechart" id="bcs-smtp-ov-chart" tabindex="0"
+                                                        role="img" aria-label="<?php esc_attr_e( 'Emails per day: sent, failed and unconfirmed. Use the left and right arrow keys to read each day.', 'bcs-smtp-manager' ); ?>"
+                                                        data-chart="<?php echo esc_attr( wp_json_encode( $chart ) ); ?>">
+                                                        <div class="bcs-smtp-linechart-tip" aria-live="polite" hidden></div>
+                                                </div>
+                                                <p class="bcs-smtp-chart-empty" id="bcs-smtp-ov-empty" <?php echo $summary_30d['total'] > 0 ? 'hidden' : ''; ?>><?php esc_html_e( 'No email was sent in this period.', 'bcs-smtp-manager' ); ?></p>
+                                                <?php if ( $summary_30d['failed'] > 0 ) : ?>
+                                                        <p class="bcs-smtp-activity-foot">
+                                                                <?php
+                                                                /* translators: %s: number of failed emails in the last 30 days. */
+                                                                printf( esc_html( _n( '%s email failed in the last 30 days.', '%s emails failed in the last 30 days.', $summary_30d['failed'], 'bcs-smtp-manager' ) ), esc_html( number_format_i18n( $summary_30d['failed'] ) ) );
+                                                                ?>
+                                                                <button type="button" class="bcs-smtp-link" data-goto="email-log" data-log-status="failed"><?php esc_html_e( 'Review failed emails', 'bcs-smtp-manager' ); ?></button>
+                                                        </p>
+                                                <?php endif; ?>
+                                        </section>
+
+                                        <div class="bcs-smtp-side">
+                                        <?php if ( $setup_left > 0 ) : ?>
+                                        <section class="bcs-smtp-panel bcs-smtp-setup-card" aria-labelledby="bcs-smtp-setup-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-setup-title"><?php esc_html_e( 'Finish setting up', 'bcs-smtp-manager' ); ?></h2>
+                                                        <span class="bcs-smtp-panel-sub">
+                                                                <?php
+                                                                /* translators: 1: completed setup steps, 2: total setup steps. */
+                                                                printf( esc_html__( '%1$d of %2$d done', 'bcs-smtp-manager' ), count( $setup_items ) - $setup_left, count( $setup_items ) );
+                                                                ?>
+                                                        </span>
+                                                </div>
+                                                <div class="bcs-smtp-progress" aria-hidden="true">
+                                                        <?php foreach ( $setup_items as $item ) : ?>
+                                                                <span class="<?php echo $item['done'] ? 'is-done' : ''; ?>"></span>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                                <ul class="bcs-smtp-checklist">
+                                                        <?php foreach ( $setup_items as $item ) : ?>
+                                                                <li class="<?php echo $item['done'] ? 'is-done' : ''; ?>">
+                                                                        <span class="bcs-smtp-check-dot dashicons <?php echo $item['done'] ? 'dashicons-yes' : ''; ?>" aria-hidden="true"></span>
+                                                                        <?php if ( $item['done'] ) : ?>
+                                                                                <span><?php echo esc_html( $item['label'] ); ?></span>
+                                                                                <span class="screen-reader-text"><?php esc_html_e( '(done)', 'bcs-smtp-manager' ); ?></span>
+                                                                        <?php else : ?>
+                                                                                <button type="button" class="bcs-smtp-link bcs-smtp-link--plain" data-goto="<?php echo esc_attr( $item['goto'] ); ?>"><?php echo esc_html( $item['label'] ); ?><span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span></button>
+                                                                        <?php endif; ?>
+                                                                </li>
+                                                        <?php endforeach; ?>
+                                                </ul>
+                                        </section>
+                                        <?php endif; ?>
+                                        <section class="bcs-smtp-panel bcs-smtp-quick" aria-labelledby="bcs-smtp-quick-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-quick-title"><?php esc_html_e( 'Quick actions', 'bcs-smtp-manager' ); ?></h2>
+                                                </div>
+                                                <ul class="bcs-smtp-quick-list">
+                                                        <li><button type="button" data-goto="connection" data-focus="#bcs-smtp-test-to">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Send a test email', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="email-log" data-log-status="failed">
+                                                                <span class="bcs-smtp-quick-icon bcs-smtp-quick-icon--bad dashicons dashicons-warning" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Review failed emails', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="alerts">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-bell" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Failure alerts', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-export-log>
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-download" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Export email log', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <?php if ( 0 === $setup_left ) : // The setup card is gone, so this card takes the whole column. ?>
+                                                        <li><button type="button" data-check-now data-msg="#bcs-smtp-overview-msg">
+                                                                <span class="bcs-smtp-quick-icon bcs-smtp-quick-icon--ok dashicons dashicons-heart" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="reports">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-chart-area" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Delivery report', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <li><button type="button" data-goto="connection">
+                                                                <span class="bcs-smtp-quick-icon dashicons dashicons-admin-network" aria-hidden="true"></span>
+                                                                <span class="bcs-smtp-quick-text"><strong><?php esc_html_e( 'Connection settings', 'bcs-smtp-manager' ); ?></strong></span>
+                                                                <span class="dashicons dashicons-arrow-right-alt2" aria-hidden="true"></span>
+                                                        </button></li>
+                                                        <?php endif; ?>
+                                                </ul>
+                                        </section>
                                         </div>
                                 </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo $smtp_enabled ? 'good' : ''; ?>">
-                                                <span class="dashicons dashicons-admin-plugins"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo $smtp_enabled ? 'good' : ''; ?>">
-                                                        <?php echo $smtp_enabled ? esc_html__( 'On', 'bcs-smtp-manager' ) : esc_html__( 'Off', 'bcs-smtp-manager' ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'SMTP Active', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon">
-                                                <span class="dashicons dashicons-email-alt"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value" style="font-size:18px"><?php echo esc_html( number_format( $summary_30d['total'] ) ); ?></div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Emails (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon good">
-                                                <span class="dashicons dashicons-yes"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value good" style="font-size:22px"><?php echo esc_html( number_format( $summary_30d['success'] ) ); ?></div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Sent (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                                <div class="bcs-smtp-stat">
-                                        <div class="bcs-smtp-stat-icon <?php echo $summary_30d['failed'] > 0 ? 'bad' : ( $last_check ? 'good' : '' ); ?>">
-                                                <span class="dashicons dashicons-warning"></span>
-                                        </div>
-                                        <div class="bcs-smtp-stat-body">
-                                                <div class="bcs-smtp-stat-value <?php echo $summary_30d['failed'] > 0 ? 'bad' : ( $last_check ? 'good' : '' ); ?>" style="font-size:22px">
-                                                        <?php echo esc_html( number_format( $summary_30d['failed'] ) ); ?>
-                                                </div>
-                                                <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Failed (30d)', 'bcs-smtp-manager' ); ?></div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══ TABS ══════════════════════════════════════════════════════ -->
-                        <div class="bcs-smtp-tabs">
-                                <button type="button" class="bcs-smtp-tab active" data-panel="settings">
-                                        <span class="dashicons dashicons-admin-settings"></span><?php esc_html_e( 'Settings', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="email-log">
-                                        <span class="dashicons dashicons-list-view"></span><?php esc_html_e( 'Email Log', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="email-report">
-                                        <span class="dashicons dashicons-chart-bar"></span><?php esc_html_e( 'Email Report', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="test">
-                                        <span class="dashicons dashicons-email"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="alerts">
-                                        <span class="dashicons dashicons-bell"></span><?php esc_html_e( 'Alerts', 'bcs-smtp-manager' ); ?>
-                                </button>
-                                <button type="button" class="bcs-smtp-tab" data-panel="config">
-                                        <span class="dashicons dashicons-admin-generic"></span><?php esc_html_e( 'Config', 'bcs-smtp-manager' ); ?>
-                                </button>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Settings (SMTP connection)
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-settings" class="bcs-smtp-tab-panel active">
-                                <div class="bcs-smtp-grid">
-                                <div>
-                                        <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-header">
-                                                        <p class="bcs-smtp-card-title"><span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'SMTP Connection', 'bcs-smtp-manager' ); ?></p>
-                                                        <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Configure this plugin to send all WordPress emails via your SMTP server. Leave disabled to use PHP mail or another SMTP plugin.', 'bcs-smtp-manager' ); ?></p>
-                                                </div>
-                                                <div class="bcs-smtp-card-body">
-                                                        <!-- Enable toggle -->
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable SMTP', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Override WordPress default email with your SMTP settings below', 'bcs-smtp-manager' ); ?></div>
+                        </section>
+
+                        <!-- ═══ PANEL: Connection (guided setup) ══════════════════════════ -->
+                        <section id="bcs-smtp-panel-connection" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-connection">
+                                <div class="bcs-smtp-split">
+                                        <div class="bcs-smtp-panel bcs-smtp-setup">
+
+                                                <div class="bcs-smtp-setup-head">
+                                                        <span class="bcs-smtp-setup-badge dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2><label for="bcs-smtp-smtp-enabled"><?php esc_html_e( 'SMTP connection', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p><?php esc_html_e( 'Send all WordPress email through your mail server.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-smtp-enabled" role="switch" aria-controls="bcs-smtp-setup-body" <?php checked( $smtp_enabled || $is_first_run ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+
+                                                <?php $smtp_on = $smtp_enabled || $is_first_run; ?>
+                                                <div class="bcs-smtp-alerts-off bcs-smtp-smtp-off" id="bcs-smtp-smtp-off" <?php echo $smtp_on ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'SMTP is off, so WordPress sends email with PHP mail(), which often lands in spam. Turn it on to send through your mail server. Your settings are kept.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+
+                                                <div class="bcs-smtp-setup-body" id="bcs-smtp-setup-body" <?php echo $smtp_on ? '' : 'hidden'; ?>>
+                                                        <div class="bcs-smtp-field" id="bcs-smtp-step-provider">
+                                                                <span class="bcs-smtp-field-label" id="bcs-smtp-provider-label"><?php esc_html_e( 'Email provider', 'bcs-smtp-manager' ); ?></span>
+                                                                <?php
+                                                                // Once a provider is chosen, show just that choice with a Change link; the full list opens on demand.
+                                                                $picked = ( $provider && isset( $presets[ $provider ] ) ) ? $presets[ $provider ] : null;
+                                                                ?>
+                                                                <div class="bcs-smtp-provider-picked" id="bcs-smtp-provider-picked" <?php echo $picked ? '' : 'hidden'; ?>>
+                                                                        <span class="bcs-smtp-provider-mark" id="bcs-smtp-picked-mark" aria-hidden="true"></span>
+                                                                        <span class="bcs-smtp-picked-name" id="bcs-smtp-picked-name"><?php echo $picked ? esc_html( $picked['label'] ) : ''; ?></span>
+                                                                        <button type="button" class="bcs-smtp-link" id="bcs-smtp-provider-change" aria-expanded="false" aria-controls="bcs-smtp-provider-chips"><?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?></button>
                                                                 </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-smtp-enabled" <?php checked( $smtp_enabled ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
+                                                                <div class="bcs-smtp-provider-chips" id="bcs-smtp-provider-chips" role="radiogroup" aria-labelledby="bcs-smtp-provider-label" <?php echo $picked ? 'hidden' : ''; ?>>
+                                                                        <?php
+                                                                        // Each provider's own colour tints its badge, so the list scans by colour as well as name.
+                                                                        $provider_tones = array(
+                                                                                'gmail'     => '#ea4335',
+                                                                                'microsoft' => '#2b88d8',
+                                                                                'sendgrid'  => '#1a82e2',
+                                                                                'ses'       => '#ff9900',
+                                                                                'mailgun'   => '#f06b66',
+                                                                                'brevo'     => '#0fae7b',
+                                                                                'zoho'      => '#f0b400',
+                                                                                'yahoo'     => '#8f4bff',
+                                                                        );
+                                                                        $provider_short = array(
+                                                                                'gmail'     => __( 'Gmail', 'bcs-smtp-manager' ),
+                                                                                'microsoft' => __( 'Microsoft 365', 'bcs-smtp-manager' ),
+                                                                                'zoho'      => __( 'Zoho', 'bcs-smtp-manager' ),
+                                                                                'yahoo'     => __( 'Yahoo', 'bcs-smtp-manager' ),
+                                                                                'other'     => __( 'Other', 'bcs-smtp-manager' ),
+                                                                        );
+                                                                        foreach ( $presets as $key => $p ) :
+                                                                                ?>
+                                                                                <label class="bcs-smtp-provider" title="<?php echo esc_attr( $p['label'] ); ?>" style="--tone:<?php echo esc_attr( isset( $provider_tones[ $key ] ) ? $provider_tones[ $key ] : '#8a97b0' ); ?>">
+                                                                                        <input type="radio" name="bcs_smtp_provider" class="bcs-smtp-provider-radio" value="<?php echo esc_attr( $key ); ?>"
+                                                                                                data-host="<?php echo esc_attr( $p['host'] ); ?>"
+                                                                                                data-port="<?php echo esc_attr( $p['port'] ); ?>"
+                                                                                                data-enc="<?php echo esc_attr( $p['enc'] ); ?>"
+                                                                                                data-user="<?php echo esc_attr( $p['user'] ); ?>"
+                                                                                                data-user-hint="<?php echo esc_attr( $p['user_hint'] ); ?>"
+                                                                                                data-pass-label="<?php echo esc_attr( $p['pass_label'] ); ?>"
+                                                                                                data-note="<?php echo esc_attr( $p['note'] ); ?>"
+                                                                                                data-link="<?php echo esc_url( $p['link'] ); ?>"
+                                                                                                data-link-label="<?php echo esc_attr( $p['link_label'] ); ?>"
+                                                                                                <?php checked( $provider, $key ); ?>>
+                                                                                        <span class="bcs-smtp-provider-mark" aria-hidden="true"><?php echo $p['short'] ? esc_html( $p['short'] ) : '<span class="dashicons dashicons-admin-generic"></span>'; ?></span>
+                                                                                        <span class="bcs-smtp-provider-name"><?php echo esc_html( isset( $provider_short[ $key ] ) ? $provider_short[ $key ] : $p['label'] ); ?></span>
+                                                                                </label>
+                                                                        <?php endforeach; ?>
+                                                                </div>
+                                                                <p class="bcs-smtp-provider-note" id="bcs-smtp-provider-note" <?php echo $provider ? '' : 'hidden'; ?>>
+                                                                        <span class="dashicons dashicons-info-outline" aria-hidden="true"></span>
+                                                                        <span>
+                                                                                <span id="bcs-smtp-provider-note-text"><?php echo esc_html( $preset['note'] ); ?></span>
+                                                                                <a id="bcs-smtp-provider-note-link" href="<?php echo esc_url( $preset['link'] ); ?>" target="_blank" rel="noopener noreferrer" <?php echo $preset['link'] ? '' : 'hidden'; ?>><span id="bcs-smtp-provider-note-link-text"><?php echo esc_html( $preset['link_label'] ); ?></span><span class="screen-reader-text"> <?php esc_html_e( '(opens in a new tab)', 'bcs-smtp-manager' ); ?></span></a>
+                                                                        </span>
+                                                                </p>
                                                         </div>
 
-                                                        <!-- SMTP settings accordion -->
-                                                        <div id="bcs-smtp-smtp-accordion" class="bcs-smtp-accordion <?php echo $smtp_enabled ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(99,102,241,.15);color:var(--bcs-smtp-indigo)">
-                                                                                        <span class="dashicons dashicons-admin-network"></span>
+                                                        <div class="bcs-smtp-field-row">
+                                                                <div class="bcs-smtp-field">
+                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-email"><?php esc_html_e( 'From address', 'bcs-smtp-manager' ); ?></label>
+                                                                        <input type="email" id="bcs-smtp-from-email" class="bcs-smtp-input" value="<?php echo esc_attr( $from_email ); ?>" spellcheck="false">
+                                                                </div>
+                                                                <div class="bcs-smtp-field">
+                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-name"><?php esc_html_e( 'From name', 'bcs-smtp-manager' ); ?></label>
+                                                                        <input type="text" id="bcs-smtp-from-name" class="bcs-smtp-input" value="<?php echo esc_attr( $from_name ); ?>">
+                                                                </div>
+                                                        </div>
+
+                                                        <label class="bcs-smtp-inline-switch bcs-smtp-auth-switch" for="bcs-smtp-smtp-auth">
+                                                                <span class="bcs-smtp-toggle bcs-smtp-toggle--sm">
+                                                                        <input type="checkbox" id="bcs-smtp-smtp-auth" role="switch" aria-controls="bcs-smtp-auth-fields" <?php checked( $smtp_auth ); ?>>
+                                                                        <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                </span>
+                                                                <span><?php esc_html_e( 'My server needs a username and password', 'bcs-smtp-manager' ); ?></span>
+                                                        </label>
+
+                                                        <div id="bcs-smtp-auth-fields" <?php echo $smtp_auth ? '' : 'hidden'; ?>>
+                                                                <div class="bcs-smtp-field-row">
+                                                                        <div class="bcs-smtp-field">
+                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-username"><?php esc_html_e( 'Username', 'bcs-smtp-manager' ); ?></label>
+                                                                                <input type="text" id="bcs-smtp-smtp-username" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_user ); ?>" placeholder="<?php echo esc_attr( $preset['user_hint'] ); ?>" autocomplete="off" spellcheck="false" aria-describedby="bcs-smtp-user-hint">
+                                                                                <span class="screen-reader-text" id="bcs-smtp-user-hint"><?php echo esc_html( $preset['user_hint'] ); ?></span>
+                                                                        </div>
+                                                                        <div class="bcs-smtp-field">
+                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-password" id="bcs-smtp-pass-label"><?php echo esc_html( $preset['pass_label'] ); ?></label>
+                                                                                <div id="bcs-smtp-pw-display" class="bcs-smtp-pw-saved" <?php echo $has_pw ? '' : 'hidden'; ?>>
+                                                                                        <span class="bcs-smtp-pw-dots" aria-hidden="true">••••••••••••</span>
+                                                                                        <span class="screen-reader-text"><?php esc_html_e( 'A password is saved.', 'bcs-smtp-manager' ); ?></span>
+                                                                                        <button type="button" id="bcs-smtp-change-pw-btn" class="bcs-smtp-link"><?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?></button>
                                                                                 </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'SMTP Server Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Host, port, encryption & authentication', 'bcs-smtp-manager' ); ?></div>
+                                                                                <div id="bcs-smtp-pw-input" <?php echo $has_pw ? 'hidden' : ''; ?>>
+                                                                                        <div class="bcs-smtp-pw-wrap">
+                                                                                                <input type="password" id="bcs-smtp-smtp-password" class="bcs-smtp-input" value="" autocomplete="new-password" spellcheck="false" aria-describedby="bcs-smtp-pw-status">
+                                                                                                <button type="button" id="bcs-smtp-toggle-pw-btn" class="bcs-smtp-pw-eye" aria-label="<?php esc_attr_e( 'Show password', 'bcs-smtp-manager' ); ?>" aria-controls="bcs-smtp-smtp-password">
+                                                                                                        <span class="dashicons dashicons-visibility" aria-hidden="true"></span>
+                                                                                                </button>
+                                                                                        </div>
+                                                                                        <button type="button" id="bcs-smtp-cancel-pw-btn" class="bcs-smtp-link bcs-smtp-hint" hidden><?php esc_html_e( 'Keep the saved password', 'bcs-smtp-manager' ); ?></button>
+                                                                                </div>
+                                                                                <?php if ( $pw_unreadable ) : ?>
+                                                                                        <span class="bcs-smtp-hint is-bad" id="bcs-smtp-pw-status"><?php esc_html_e( 'The saved password can no longer be read because your site’s security keys changed. Click Change and enter it again.', 'bcs-smtp-manager' ); ?></span>
+                                                                                <?php else : ?>
+                                                                                        <span class="bcs-smtp-hint <?php echo $has_pw ? 'is-good' : ''; ?>" id="bcs-smtp-pw-status"></span>
+                                                                                <?php endif; ?>
+                                                                        </div>
+                                                                </div>
+                                                        </div>
+
+                                                        <div class="bcs-smtp-alert bcs-smtp-alert-warning bcs-smtp-auth-warning" id="bcs-smtp-auth-warning" role="alert" <?php echo ( ! $smtp_auth && $provider && 'other' !== $provider ) ? '' : 'hidden'; ?>>
+                                                                <span class="dashicons dashicons-warning" aria-hidden="true"></span>
+                                                                <div class="bcs-smtp-alert-content">
+                                                                        <strong id="bcs-smtp-auth-warning-title">
+                                                                                <?php
+                                                                                /* translators: %s: email provider name, e.g. Microsoft 365. */
+                                                                                printf( esc_html__( '%s needs a username and password.', 'bcs-smtp-manager' ), esc_html( isset( $provider_short[ $provider ] ) ? $provider_short[ $provider ] : $preset['label'] ) );
+                                                                                ?>
+                                                                        </strong>
+                                                                        <?php esc_html_e( 'Turn on “My server needs a username and password” above and save, or every email will be rejected.', 'bcs-smtp-manager' ); ?>
+                                                                </div>
+                                                        </div>
+
+                                                        <div class="bcs-smtp-disclosure <?php echo ( 'other' === $provider ) ? 'is-open' : ''; ?>" id="bcs-smtp-server-details">
+                                                                <button type="button" class="bcs-smtp-disclosure-head" aria-expanded="<?php echo ( 'other' === $provider ) ? 'true' : 'false'; ?>" aria-controls="bcs-smtp-server-details-body">
+                                                                        <span>
+                                                                                <strong><?php esc_html_e( 'Server details', 'bcs-smtp-manager' ); ?></strong>
+                                                                                <span class="bcs-smtp-mono" id="bcs-smtp-server-summary"><?php echo $smtp_host ? esc_html( $smtp_host . ' · ' . $smtp_port . ' · ' . strtoupper( $smtp_enc ) ) : esc_html__( 'Filled in when you pick a provider', 'bcs-smtp-manager' ); ?></span>
+                                                                        </span>
+                                                                        <span class="dashicons dashicons-arrow-down-alt2" aria-hidden="true"></span>
+                                                                </button>
+                                                                <div class="bcs-smtp-disclosure-body" id="bcs-smtp-server-details-body">
+                                                                        <div class="bcs-smtp-field-row">
+                                                                                <div class="bcs-smtp-field bcs-smtp-field--grow">
+                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-host"><?php esc_html_e( 'SMTP server', 'bcs-smtp-manager' ); ?></label>
+                                                                                        <input type="text" id="bcs-smtp-smtp-host" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( $smtp_host ); ?>" placeholder="smtp.example.com" spellcheck="false" autocomplete="off">
+                                                                                </div>
+                                                                                <div class="bcs-smtp-field bcs-smtp-field--port">
+                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-port"><?php esc_html_e( 'Port', 'bcs-smtp-manager' ); ?></label>
+                                                                                        <input type="number" id="bcs-smtp-smtp-port" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( $smtp_port ); ?>" min="1" max="65535" inputmode="numeric">
                                                                                 </div>
                                                                         </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-email"><?php esc_html_e( 'Force From Email', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="email" id="bcs-smtp-from-email" class="bcs-smtp-input" value="<?php echo esc_attr( $from_email ); ?>" placeholder="no-reply@yoursite.com">
-                                                                                </div>
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-from-name"><?php esc_html_e( 'Force From Name', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-from-name" class="bcs-smtp-input" value="<?php echo esc_attr( $from_name ); ?>" placeholder="Your Site Name">
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-host"><?php esc_html_e( 'SMTP Host', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-smtp-host" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_host ); ?>" placeholder="smtp.gmail.com">
-                                                                                </div>
-                                                                                <div class="bcs-smtp-field">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-port"><?php esc_html_e( 'SMTP Port', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="number" id="bcs-smtp-smtp-port" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_port ); ?>" min="1" max="65535">
-                                                                                        <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'SSL = 465 • TLS = 587 • None = 25', 'bcs-smtp-manager' ); ?></small>
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <!-- Encryption -->
                                                                         <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></label>
-                                                                                <div class="bcs-smtp-check-list" style="flex-direction:row;gap:8px">
-                                                                                        <?php foreach ( array( 'none' => __( 'None', 'bcs-smtp-manager' ), 'ssl' => __( 'SSL', 'bcs-smtp-manager' ), 'tls' => __( 'TLS', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
-                                                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:6px;padding:8px 14px;min-width:70px">
-                                                                                                <input type="radio" name="bcs_smtp_encryption" class="bcs-smtp-enc-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $smtp_enc, $val ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                                                <span class="bcs-smtp-check-label-title"><?php echo esc_html( $label ); ?></span>
+                                                                                <span class="bcs-smtp-field-label" id="bcs-smtp-enc-label"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></span>
+                                                                                <div class="bcs-smtp-segmented" role="radiogroup" aria-labelledby="bcs-smtp-enc-label">
+                                                                                        <?php foreach ( array( 'tls' => __( 'TLS · 587', 'bcs-smtp-manager' ), 'ssl' => __( 'SSL · 465', 'bcs-smtp-manager' ), 'none' => __( 'None · 25', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                                        <label>
+                                                                                                <input type="radio" name="bcs_smtp_encryption" class="bcs-smtp-enc-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $smtp_enc, $val ); ?>>
+                                                                                                <span><?php echo esc_html( $label ); ?></span>
                                                                                         </label>
                                                                                         <?php endforeach; ?>
                                                                                 </div>
                                                                         </div>
-
-                                                                        <!-- Auto TLS toggle -->
-                                                                        <div class="bcs-smtp-toggle-row" style="padding:10px 0">
-                                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                                        <div class="bcs-smtp-toggle-row-label" style="font-size:13px"><?php esc_html_e( 'Auto TLS', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Automatically upgrade to TLS if supported by the server', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                                <label class="bcs-smtp-toggle">
-                                                                                        <input type="checkbox" id="bcs-smtp-auto-tls" <?php checked( $auto_tls ); ?>>
-                                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                                </label>
-                                                                        </div>
-
-                                                                        <!-- Authentication toggle -->
-                                                                        <div class="bcs-smtp-toggle-row" style="padding:10px 0">
-                                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                                        <div class="bcs-smtp-toggle-row-label" style="font-size:13px"><?php esc_html_e( 'Authentication', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Authenticate with the SMTP server using username & password', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                                <label class="bcs-smtp-toggle">
-                                                                                        <input type="checkbox" id="bcs-smtp-smtp-auth" <?php checked( $smtp_auth ); ?>>
-                                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                                </label>
-                                                                        </div>
-
-                                                                        <!-- Username + Password (shown when auth enabled) -->
-                                                                        <div id="bcs-smtp-auth-fields" style="<?php echo $smtp_auth ? '' : 'display:none'; ?>">
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field" style="flex:0 0 50%;max-width:50%">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-username"><?php esc_html_e( 'Username', 'bcs-smtp-manager' ); ?></label>
-                                                                                        <input type="text" id="bcs-smtp-smtp-username" class="bcs-smtp-input" value="<?php echo esc_attr( $smtp_user ); ?>" placeholder="your@email.com" autocomplete="off">
-                                                                                </div>
-                                                                        </div>
-                                                                        <?php $has_pw = ! empty( get_option( 'bcs_smtp_password', '' ) ); ?>
-                                                                        <div class="bcs-smtp-field-row">
-                                                                                <div class="bcs-smtp-field" style="flex:0 0 50%;max-width:50%">
-                                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-smtp-password"><?php esc_html_e( 'Password / App Password', 'bcs-smtp-manager' ); ?></label>
-
-                                                                                        <!-- Masked display — shown when a password is already saved -->
-                                                                                        <div id="bcs-smtp-pw-display" style="<?php echo $has_pw ? 'display:flex' : 'display:none'; ?>;gap:8px;align-items:center">
-                                                                                                <input type="password" class="bcs-smtp-input" value="placeholder_pw"
-                                                                                                   disabled style="flex:1" aria-label="<?php esc_attr_e( 'Saved password (masked)', 'bcs-smtp-manager' ); ?>">
-                                                                                                <button type="button" id="bcs-smtp-change-pw-btn"
-                                                                                                                class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"
-                                                                                                                style="flex-shrink:0;white-space:nowrap">
-                                                                                                        <span class="dashicons dashicons-edit"></span> <?php esc_html_e( 'Change', 'bcs-smtp-manager' ); ?>
-                                                                                                </button>
-                                                                                        </div>
-
-                                                                                        <!-- Actual input — visible when no password yet, or after Change is clicked -->
-                                                                                        <div id="bcs-smtp-pw-input" style="<?php echo $has_pw ? 'display:none' : ''; ?>">
-                                                                                                <div class="bcs-smtp-pw-wrap">
-                                                                                                        <input type="password" id="bcs-smtp-smtp-password" class="bcs-smtp-input"
-                                                                                                                   value="" placeholder="<?php esc_attr_e( 'Enter password or app password…', 'bcs-smtp-manager' ); ?>"
-                                                                                                                   autocomplete="new-password" style="width:100%">
-                                                                                                        <button type="button" id="bcs-smtp-toggle-pw-btn" class="bcs-smtp-pw-eye" aria-label="<?php esc_attr_e( 'Show password', 'bcs-smtp-manager' ); ?>" tabindex="-1">
-                                                                                                                <span class="dashicons dashicons-visibility"></span>
-                                                                                                        </button>
-                                                                                                </div>
-                                                                                                <!-- Cancel link — shown after Change is clicked -->
-                                                                                                <div id="bcs-smtp-pw-cancel-row" style="display:none;margin-top:6px">
-                                                                                                        <a href="#" id="bcs-smtp-cancel-pw-btn" style="font-size:12px;color:var(--bcs-smtp-text-3);text-decoration:none">
-                                                                                                                &#8592; <?php esc_html_e( 'Cancel — keep existing password', 'bcs-smtp-manager' ); ?>
-                                                                                                        </a>
-                                                                                                </div>
-                                                                                        </div>
-
-                                                                                        <small style="font-size:11px;margin-top:6px;display:block">
-                                                                                                <span id="bcs-smtp-pw-status" style="color:<?php echo $has_pw ? 'var(--bcs-smtp-emerald)' : 'var(--bcs-smtp-text-3)'; ?>">
-                                                                                                        <?php echo $has_pw ? esc_html__( '✓ Password saved — leave blank to keep it.', 'bcs-smtp-manager' ) : esc_html__( 'No password saved yet.', 'bcs-smtp-manager' ); ?>
-                                                                                                </span><br>
-                                                                                                <span style="color:var(--bcs-smtp-text-3)">
-                                                                                                        <?php esc_html_e( 'Gmail / Workspace: use a 16-char', 'bcs-smtp-manager' ); ?> <strong><?php esc_html_e( 'App Password', 'bcs-smtp-manager' ); ?></strong>
-                                                                                                        (<a href="https://myaccount.google.com/apppasswords" target="_blank" rel="noopener"><?php esc_html_e( 'generate ↗', 'bcs-smtp-manager' ); ?></a>).
-                                                                                                        <?php esc_html_e( 'Outlook / Microsoft 365: use your account or app password.', 'bcs-smtp-manager' ); ?>
-                                                                                                        <?php esc_html_e( 'Spaces are stripped automatically.', 'bcs-smtp-manager' ); ?>
-                                                                                                </span>
-                                                                                        </small>
-                                                                                </div>
-                                                                        </div>
-                                                                        </div>
+                                                                        <label class="bcs-smtp-inline-switch" for="bcs-smtp-auto-tls">
+                                                                                <span class="bcs-smtp-toggle bcs-smtp-toggle--sm">
+                                                                                        <input type="checkbox" id="bcs-smtp-auto-tls" role="switch" <?php checked( $auto_tls ); ?>>
+                                                                                        <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                                </span>
+                                                                                <span><?php esc_html_e( 'Upgrade to TLS when the server offers it', 'bcs-smtp-manager' ); ?></span>
+                                                                        </label>
                                                                 </div>
                                                         </div>
-
-                                                        <div style="margin-top:16px">
-                                                                <button type="button" id="bcs-smtp-save-smtp-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save SMTP Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <div id="bcs-smtp-smtp-msg" role="status" aria-live="polite" style="display:none;margin-top:10px;width:100%"></div>
+                                                </div>
+
+                                                <div class="bcs-smtp-setup-foot">
+                                                        <button type="button" id="bcs-smtp-save-smtp-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
+                                                                <?php esc_html_e( 'Save and test connection', 'bcs-smtp-manager' ); ?>
+                                                        </button>
+                                                        <span class="bcs-smtp-unsaved" id="bcs-smtp-smtp-unsaved" hidden><?php esc_html_e( 'Unsaved changes', 'bcs-smtp-manager' ); ?></span>
+                                                        <div id="bcs-smtp-smtp-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                                </div>
+                                        </div>
+
+                                        <aside class="bcs-smtp-panel bcs-smtp-test" aria-labelledby="bcs-smtp-test-title">
+                                                <div class="bcs-smtp-test-head">
+                                                        <span class="bcs-smtp-test-badge dashicons dashicons-yes-alt" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2 id="bcs-smtp-test-title"><?php esc_html_e( 'Check it works', 'bcs-smtp-manager' ); ?></h2>
+                                                                <p><?php esc_html_e( 'Send a real email through your connection. The result shows here and in the email log.', 'bcs-smtp-manager' ); ?></p>
                                                         </div>
                                                 </div>
+                                                <div class="bcs-smtp-field">
+                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-test-to"><?php esc_html_e( 'Send a test email to', 'bcs-smtp-manager' ); ?></label>
+                                                        <input type="email" id="bcs-smtp-test-to" class="bcs-smtp-input" value="<?php echo esc_attr( get_option( 'admin_email' ) ); ?>" spellcheck="false">
+                                                </div>
+                                                <div class="bcs-smtp-actions">
+                                                        <button type="button" id="bcs-smtp-send-test-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Send test email', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-check-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" data-check-now data-msg="#bcs-smtp-test-msg"><?php esc_html_e( 'Run health check', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
+                                                <div id="bcs-smtp-test-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </aside>
+                                </div>
+                        </section>
+
+                        <!-- ═══ PANEL: Email log ══════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-email-log" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-email-log">
+                                <?php
+                                $grace_until = (int) get_option( 'bcs_smtp_prune_after', 0 );
+                                $older_count = $grace_until > time() ? $this->db->count_email_log_older_than( BCS_SMTP_LOG_RETENTION_DAYS ) : 0;
+                                if ( $older_count > 0 ) :
+                                        $export_all = add_query_arg(
+                                                array(
+                                                        'bcs_smtp_action' => 'export_csv',
+                                                        'nonce'           => wp_create_nonce( 'bcs_smtp_export' ),
+                                                        'date_range'      => 'all',
+                                                        'status'          => 'all',
+                                                ),
+                                                admin_url( 'options-general.php?page=bcs-smtp-manager' )
+                                        );
+                                        ?>
+                                        <div class="bcs-smtp-alert bcs-smtp-alert-warning bcs-smtp-log-retention" role="status">
+                                                <span class="dashicons dashicons-info-outline" aria-hidden="true"></span>
+                                                <div class="bcs-smtp-alert-content">
+                                                        <?php
+                                                        printf(
+                                                                /* translators: 1: number of log entries, 2: date. */
+                                                                esc_html( _n( 'The email log now keeps the last 90 days. %1$s older entry will be removed on %2$s.', 'The email log now keeps the last 90 days. %1$s older entries will be removed on %2$s.', $older_count, 'bcs-smtp-manager' ) ),
+                                                                esc_html( number_format_i18n( $older_count ) ),
+                                                                esc_html( wp_date( get_option( 'date_format', 'F j, Y' ), $grace_until ) )
+                                                        );
+                                                        ?>
+                                                        <a href="<?php echo esc_url( $export_all ); ?>"><?php esc_html_e( 'Export all entries (CSV)', 'bcs-smtp-manager' ); ?></a>
+                                                </div>
                                         </div>
-                                </div>
-
-                                <div>
-                                        <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-header">
-                                                        <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'Common SMTP Providers', 'bcs-smtp-manager' ); ?></p>
-                                                        <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Reference host, port & encryption settings for popular providers.', 'bcs-smtp-manager' ); ?></p>
-                                                </div>
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-field-group" style="gap:10px">
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Gmail / Google Workspace', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.gmail.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Outlook / Microsoft 365', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.office365.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Yahoo Mail', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.mail.yahoo.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'SendGrid', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.sendgrid.net &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Amazon SES', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">email-smtp.[region].amazonaws.com &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                                <div class="bcs-smtp-server-row">
-                                                                        <span class="bcs-smtp-server-key"><?php esc_html_e( 'Mailgun', 'bcs-smtp-manager' ); ?></span>
-                                                                        <span class="bcs-smtp-server-val bcs-smtp-mono">smtp.mailgun.org &bull; 587 &bull; TLS</span>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-top:14px;margin-bottom:0">
-                                                                <span class="dashicons dashicons-info-outline"></span>
-                                                                <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'Gmail and Microsoft 365 require an app password when 2-factor authentication is enabled — your normal account password won’t work.', 'bcs-smtp-manager' ); ?></div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-
-                                </div>
-
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Email Log
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-email-log" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-card">
-                                        <div class="bcs-smtp-card-header">
-                                                <div style="display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:14px">
-                                                        <p class="bcs-smtp-card-title" style="margin:0"><span class="dashicons dashicons-list-view"></span><?php esc_html_e( 'Email Log', 'bcs-smtp-manager' ); ?></p>
-                                                        <div style="display:flex;gap:8px;flex-wrap:wrap">
-                                                                <a id="bcs-smtp-export-csv-btn" href="#" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm">
-                                                                        <span class="dashicons dashicons-download"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
-                                                                </a>
-                                                        </div>
-                                                </div>
-                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Every email sent via', 'bcs-smtp-manager' ); ?> <code>wp_mail()</code> <?php esc_html_e( 'is logged here with its delivery status.', 'bcs-smtp-manager' ); ?></p>
-                                        </div>
-                                        <div class="bcs-smtp-card-body">
-                                                <!-- Filters -->
-                                        <div style="display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center">
-                                                <select id="bcs-smtp-log-date-range" class="bcs-smtp-input" style="width:25%;min-width:130px">
-                                                        <option value="today"><?php esc_html_e( 'Today', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="yesterday"><?php esc_html_e( 'Yesterday', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="7days"><?php esc_html_e( 'Last 7 days', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="30days" selected><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="this_week"><?php esc_html_e( 'This week', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="last_week"><?php esc_html_e( 'Last week', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="this_month"><?php esc_html_e( 'This month', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="3months"><?php esc_html_e( 'Last 3 months', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="6months"><?php esc_html_e( 'Last 6 months', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="year"><?php esc_html_e( 'This year', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="all"><?php esc_html_e( 'All time', 'bcs-smtp-manager' ); ?></option>
+                                <?php endif; ?>
+                                <div class="bcs-smtp-panel bcs-smtp-panel--flush">
+                                        <div class="bcs-smtp-filters">
+                                                <div class="bcs-smtp-search">
+                                                        <span class="dashicons dashicons-search" aria-hidden="true"></span>
+                                                        <label class="screen-reader-text" for="bcs-smtp-log-search"><?php esc_html_e( 'Search email log', 'bcs-smtp-manager' ); ?></label>
+                                                        <input type="search" id="bcs-smtp-log-search" class="bcs-smtp-input" placeholder="<?php esc_attr_e( 'Search subject or address', 'bcs-smtp-manager' ); ?>">
+                                                </div>
+                                                <label class="screen-reader-text" for="bcs-smtp-log-date-range"><?php esc_html_e( 'Date range', 'bcs-smtp-manager' ); ?></label>
+                                                <select id="bcs-smtp-log-date-range" class="bcs-smtp-input bcs-smtp-select">
+                                                        <?php foreach ( $date_ranges as $val => $label ) : ?>
+                                                                <option value="<?php echo esc_attr( $val ); ?>" <?php selected( $val, '30days' ); ?>><?php echo esc_html( $label ); ?></option>
+                                                        <?php endforeach; ?>
                                                 </select>
-                                                <select id="bcs-smtp-log-status" class="bcs-smtp-input" style="width:25%;min-width:120px">
-                                                        <option value=""><?php esc_html_e( 'All statuses', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="success"><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="failed"><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></option>
-                                                        <option value="unconfirmed"><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></option>
-                                                </select>
-                                                <input type="text" id="bcs-smtp-log-search" class="bcs-smtp-input" style="width:50%;min-width:200px;flex:1" placeholder="<?php esc_attr_e( 'Search subject, from, or to email…', 'bcs-smtp-manager' ); ?>">
+                                                <div class="bcs-smtp-segmented bcs-smtp-status-filter" role="radiogroup" aria-label="<?php esc_attr_e( 'Status', 'bcs-smtp-manager' ); ?>">
+                                                        <?php foreach ( array( '' => __( 'All', 'bcs-smtp-manager' ), 'success' => __( 'Sent', 'bcs-smtp-manager' ), 'failed' => __( 'Failed', 'bcs-smtp-manager' ), 'unconfirmed' => __( 'Unconfirmed', 'bcs-smtp-manager' ) ) as $val => $label ) : ?>
+                                                                <label><input type="radio" name="bcs_smtp_log_status" class="bcs-smtp-log-status-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( '', $val ); ?>><span><?php echo esc_html( $label ); ?><b class="bcs-smtp-seg-count" data-count="<?php echo esc_attr( '' === $val ? 'all' : $val ); ?>"></b></span></label>
+                                                        <?php endforeach; ?>
+                                                </div>
+                                                <input type="hidden" id="bcs-smtp-log-status" value="">
+                                                <a id="bcs-smtp-export-csv-btn" href="#" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm">
+                                                        <span class="dashicons dashicons-download" aria-hidden="true"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
+                                                </a>
                                         </div>
 
                                         <div class="bcs-smtp-table-wrap">
                                                 <table class="bcs-smtp-table">
+                                                        <caption class="screen-reader-text"><?php esc_html_e( 'Emails sent by WordPress', 'bcs-smtp-manager' ); ?></caption>
                                                         <thead>
                                                                 <tr>
-                                                                        <th><?php esc_html_e( 'Date', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Subject', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'From', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'To', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Status', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Error', 'bcs-smtp-manager' ); ?></th>
-                                                                        <th><?php esc_html_e( 'Actions', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-date"><?php esc_html_e( 'Time', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-subject"><?php esc_html_e( 'Subject', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-to"><?php esc_html_e( 'To', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-status"><?php esc_html_e( 'Status', 'bcs-smtp-manager' ); ?></th>
+                                                                        <th scope="col" class="bcs-smtp-col-more"><span class="screen-reader-text"><?php esc_html_e( 'Open', 'bcs-smtp-manager' ); ?></span></th>
                                                                 </tr>
                                                         </thead>
                                                         <tbody id="bcs-smtp-log-tbody">
-                                                                <tr><td colspan="7" style="text-align:center;padding:24px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( 'Loading…', 'bcs-smtp-manager' ); ?></td></tr>
+                                                                <tr><td colspan="5" class="bcs-smtp-table-empty"><?php esc_html_e( 'Loading…', 'bcs-smtp-manager' ); ?></td></tr>
                                                         </tbody>
                                                 </table>
                                         </div>
 
-                                        <!-- Pagination + per-page at bottom -->
-                                        <div style="margin-top:12px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px">
-                                                <div style="display:flex;align-items:center;gap:8px">
-                                                        <label style="font-size:12px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'Show per page:', 'bcs-smtp-manager' ); ?></label>
-                                                        <select id="bcs-smtp-log-per-page" class="bcs-smtp-input" style="width:auto;min-width:80px">
-                                                                <option value="10" selected>10</option>
-                                                                <option value="20">20</option>
+                                        <div class="bcs-smtp-pager">
+                                                <div class="bcs-smtp-pager-size">
+                                                        <label for="bcs-smtp-log-per-page"><?php esc_html_e( 'Rows', 'bcs-smtp-manager' ); ?></label>
+                                                        <select id="bcs-smtp-log-per-page" class="bcs-smtp-input bcs-smtp-select bcs-smtp-select--sm">
+                                                                <option value="10">10</option>
+                                                                <option value="25" selected>25</option>
                                                                 <option value="50">50</option>
                                                                 <option value="100">100</option>
                                                         </select>
                                                 </div>
-                                                <div id="bcs-smtp-log-pagination" style="display:flex;align-items:center;gap:8px;flex-wrap:wrap">
-                                                        <button type="button" id="bcs-smtp-log-prev" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" disabled>&larr; <?php esc_html_e( 'Prev', 'bcs-smtp-manager' ); ?></button>
-                                                        <span id="bcs-smtp-log-page-info" style="font-size:12px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'Page 1', 'bcs-smtp-manager' ); ?></span>
-                                                        <button type="button" id="bcs-smtp-log-next" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"><?php esc_html_e( 'Next', 'bcs-smtp-manager' ); ?> &rarr;</button>
-                                                </div>
-                                        </div>
+                                                <div id="bcs-smtp-log-pagination" class="bcs-smtp-pager-nav">
+                                                        <button type="button" id="bcs-smtp-log-prev" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" disabled><?php esc_html_e( 'Previous', 'bcs-smtp-manager' ); ?></button>
+                                                        <span id="bcs-smtp-log-page-info" aria-live="polite"></span>
+                                                        <button type="button" id="bcs-smtp-log-next" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm"><?php esc_html_e( 'Next', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
                                         </div>
                                 </div>
-
-                                <!-- Log Retention accordion -->
+                        </section>
+
+                        <!-- ═══ PANEL: Alerts ═════════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-alerts" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-alerts">
+
+                                <div class="bcs-smtp-alerts-grid">
+                                        <section class="bcs-smtp-panel bcs-smtp-alerts-card" aria-labelledby="bcs-smtp-alerts-title">
+                                                <div class="bcs-smtp-alerts-head">
+                                                        <span class="bcs-smtp-alerts-badge dashicons dashicons-bell" aria-hidden="true"></span>
+                                                        <div class="bcs-smtp-alerts-intro">
+                                                                <h2 id="bcs-smtp-alerts-title"><label for="bcs-smtp-alert-channel-enabled"><?php esc_html_e( 'Failure alerts', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p><?php esc_html_e( 'A message in your team chat the moment email stops sending.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-alert-channel-enabled" role="switch" aria-controls="bcs-smtp-alert-channel-accordion" <?php checked( $alert_enabled ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+
+                                                <div id="bcs-smtp-alert-channel-accordion" class="bcs-smtp-reveal <?php echo $alert_enabled ? 'open' : ''; ?>">
+                                                        <div class="bcs-smtp-ch-list-head">
+                                                                <span id="bcs-smtp-channel-label"><?php esc_html_e( 'Channels', 'bcs-smtp-manager' ); ?></span>
+                                                                <span class="bcs-smtp-ch-count" id="bcs-smtp-ch-count" aria-live="polite"></span>
+                                                        </div>
+                                                        <?php
+                                                        $channel_icons = array(
+                                                                'slack'       => 'format-chat',
+                                                                'teams'       => 'groups',
+                                                                'google_chat' => 'format-status',
+                                                                'discord'     => 'games',
+                                                                'custom'      => 'admin-links',
+                                                        );
+                                                        $webhooks = array(
+                                                                'slack'       => array( 'opt' => BCS_SMTP_OPT_SLACK_WEBHOOK_URL,       'id' => 'slack',       'sub' => __( 'Incoming webhook', 'bcs-smtp-manager' ),                 'ph' => 'https://hooks.slack.com/services/…', 'how' => __( 'In Slack: Apps → Incoming Webhooks → Add to a channel.', 'bcs-smtp-manager' ), 'link' => 'https://api.slack.com/messaging/webhooks' ),
+                                                                'teams'       => array( 'opt' => BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,       'id' => 'teams',       'sub' => __( 'Workflows webhook', 'bcs-smtp-manager' ),                'ph' => 'https://…powerplatform.com/…/workflows/…', 'how' => __( 'In Teams: channel → Workflows → “Post to a channel when a webhook request is received”.', 'bcs-smtp-manager' ), 'link' => 'https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook' ),
+                                                                'google_chat' => array( 'opt' => BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, 'id' => 'google-chat', 'sub' => __( 'Space webhook', 'bcs-smtp-manager' ),                    'ph' => 'https://chat.googleapis.com/v1/spaces/…', 'how' => __( 'In Google Chat: space → Apps & integrations → Webhooks.', 'bcs-smtp-manager' ), 'link' => 'https://developers.google.com/workspace/chat/quickstart/webhooks' ),
+                                                                'discord'     => array( 'opt' => BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,     'id' => 'discord',     'sub' => __( 'Channel webhook', 'bcs-smtp-manager' ),                  'ph' => 'https://discord.com/api/webhooks/…', 'how' => __( 'In Discord: Server Settings → Integrations → Webhooks.', 'bcs-smtp-manager' ), 'link' => 'https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks' ),
+                                                                'custom'      => array( 'opt' => BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,      'id' => 'custom',      'sub' => __( 'JSON for Zapier, Make or n8n', 'bcs-smtp-manager' ),      'ph' => 'https://example.com/webhook', 'how' => __( 'Receives a JSON payload with the event, site, error and failure count.', 'bcs-smtp-manager' ), 'link' => '' ),
+                                                        );
+                                                        ?>
+                                                        <ul class="bcs-smtp-ch-list" aria-labelledby="bcs-smtp-channel-label">
+                                                                <?php
+                                                                foreach ( $channels as $val => $ch ) :
+                                                                        $w = $webhooks[ $val ];
+                                                                        ?>
+                                                                        <li class="bcs-smtp-ch" data-channel="<?php echo esc_attr( $val ); ?>">
+                                                                                <div class="bcs-smtp-ch-row">
+                                                                                        <button type="button" class="bcs-smtp-ch-main" aria-expanded="false" aria-controls="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-row">
+                                                                                                <span class="bcs-smtp-ch-icon dashicons dashicons-<?php echo esc_attr( $channel_icons[ $val ] ); ?>" aria-hidden="true"></span>
+                                                                                                <span class="bcs-smtp-ch-text">
+                                                                                                        <span class="bcs-smtp-ch-name"><?php echo esc_html( $ch['label'] ); ?></span>
+                                                                                                        <span class="bcs-smtp-ch-sub"><?php echo esc_html( $w['sub'] ); ?></span>
+                                                                                                </span>
+                                                                                                <span class="bcs-smtp-ch-pill" aria-live="polite"></span>
+                                                                                                <span class="bcs-smtp-ch-chevron dashicons dashicons-arrow-down-alt2" aria-hidden="true"></span>
+                                                                                        </button>
+                                                                                        <span class="bcs-smtp-toggle">
+                                                                                                <input type="checkbox" name="bcs_alert_channels[]" class="bcs-smtp-channel-radio" role="switch" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" data-label="<?php echo esc_attr( $ch['label'] ); ?>" aria-label="<?php echo esc_attr( sprintf( /* translators: %s: alert channel name, e.g. Slack. */ __( 'Send alerts to %s', 'bcs-smtp-manager' ), $ch['label'] ) ); ?>" <?php checked( in_array( $val, $alert_chs, true ) ); ?>>
+                                                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                                                        </span>
+                                                                                </div>
+                                                                                <div id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-row" class="bcs-smtp-webhook" data-channel="<?php echo esc_attr( $val ); ?>" hidden>
+                                                                                        <div class="bcs-smtp-webhook-head">
+                                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-url"><?php esc_html_e( 'Webhook URL', 'bcs-smtp-manager' ); ?></label>
+                                                                                                <?php if ( $w['link'] ) : ?>
+                                                                                                        <a class="bcs-smtp-webhook-guide" href="<?php echo esc_url( $w['link'] ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Setup guide', 'bcs-smtp-manager' ); ?><span class="dashicons dashicons-external" aria-hidden="true"></span><span class="screen-reader-text"> <?php esc_html_e( '(opens in a new tab)', 'bcs-smtp-manager' ); ?></span></a>
+                                                                                                <?php endif; ?>
+                                                                                        </div>
+                                                                                        <input type="url" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-url" class="bcs-smtp-input bcs-smtp-mono" value="<?php echo esc_attr( get_option( $w['opt'], '' ) ); ?>" placeholder="<?php echo esc_attr( $w['ph'] ); ?>" spellcheck="false" autocomplete="off" aria-describedby="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-err bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-how">
+                                                                                        <p class="bcs-smtp-webhook-err" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-err" hidden></p>
+                                                                                        <p class="bcs-smtp-webhook-how" id="bcs-smtp-<?php echo esc_attr( $w['id'] ); ?>-webhook-how"><?php echo esc_html( $w['how'] ); ?></p>
+                                                                                </div>
+                                                                        </li>
+                                                                <?php endforeach; ?>
+                                                        </ul>
+                                                </div>
+
+                                                <div class="bcs-smtp-alerts-off" id="bcs-smtp-alerts-off" <?php echo $alert_enabled ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-bell" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'Alerts are off. Health checks still run, but you’ll only see a problem when you open this page.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+
+                                                <div class="bcs-smtp-actions bcs-smtp-card-foot">
+                                                        <button type="button" id="bcs-smtp-save-alerts-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Save alerts', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-test-alert-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" <?php disabled( ! $alert_enabled || ! $alert_chs ); ?>><?php esc_html_e( 'Send test alert', 'bcs-smtp-manager' ); ?></button>
+                                                        <span class="bcs-smtp-unsaved" id="bcs-smtp-alerts-unsaved" hidden><?php esc_html_e( 'Unsaved changes', 'bcs-smtp-manager' ); ?></span>
+                                                </div>
+                                                <div id="bcs-smtp-alerts-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </section>
+
+                                        <aside class="bcs-smtp-panel bcs-smtp-health-side" aria-labelledby="bcs-smtp-monitor-title">
+                                                <div class="bcs-smtp-health-head">
+                                                        <span class="bcs-smtp-health-icon dashicons dashicons-heart" aria-hidden="true"></span>
+                                                        <div>
+                                                                <h2 id="bcs-smtp-monitor-title"><?php esc_html_e( 'Health checks run automatically', 'bcs-smtp-manager' ); ?></h2>
+                                                                <p><?php esc_html_e( 'Each check signs in to your mail server without sending an email.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                </div>
+
+                                                <?php if ( $monitor_on ) : ?>
+                                                        <dl class="bcs-smtp-health-times">
+                                                                <div>
+                                                                        <dt><?php esc_html_e( 'Last check', 'bcs-smtp-manager' ); ?></dt>
+                                                                        <dd>
+                                                                                <?php
+                                                                                /* translators: %s: time since the last check, e.g. "5 minutes". */
+                                                                                echo $last_check ? esc_html( sprintf( __( '%s ago', 'bcs-smtp-manager' ), $this->check_minutes( $last_check ) ) ) : esc_html__( 'Not checked yet', 'bcs-smtp-manager' );
+                                                                                ?>
+                                                                        </dd>
+                                                                </div>
+                                                                <div>
+                                                                        <dt><?php esc_html_e( 'Next check', 'bcs-smtp-manager' ); ?></dt>
+                                                                        <dd>
+                                                                                <?php
+                                                                                if ( ! $next_check ) {
+                                                                                        esc_html_e( 'Being scheduled', 'bcs-smtp-manager' );
+                                                                                } elseif ( $next_check > time() ) {
+                                                                                        /* translators: %s: time until the next check, e.g. "10 minutes". */
+                                                                                        echo esc_html( sprintf( __( 'in %s', 'bcs-smtp-manager' ), $this->check_minutes( $next_check, true ) ) );
+                                                                                } else {
+                                                                                        esc_html_e( 'Due now', 'bcs-smtp-manager' );
+                                                                                }
+                                                                                ?>
+                                                                        </dd>
+                                                                </div>
+                                                        </dl>
+                                                <?php else : ?>
+                                                        <p class="bcs-smtp-health-pending"><?php esc_html_e( 'Health checks start once your connection is set up.', 'bcs-smtp-manager' ); ?></p>
+                                                <?php endif; ?>
+
+                                                <ul class="bcs-smtp-health-rules">
+                                                        <li><span class="dashicons dashicons-clock" aria-hidden="true"></span>
+                                                                <?php
+                                                                /* translators: %d: minutes between health checks. */
+                                                                printf( esc_html__( 'Every %d minutes', 'bcs-smtp-manager' ), (int) BCS_SMTP_CHECK_INTERVAL_MINUTES );
+                                                                ?>
+                                                        </li>
+                                                        <li><span class="dashicons dashicons-bell" aria-hidden="true"></span><?php esc_html_e( 'Alert on the failed check', 'bcs-smtp-manager' ); ?></li>
+                                                        <li><span class="dashicons dashicons-shield" aria-hidden="true"></span><?php esc_html_e( 'One alert per outage, never a flood', 'bcs-smtp-manager' ); ?></li>
+                                                        <li><span class="dashicons dashicons-update" aria-hidden="true"></span><?php esc_html_e( 'Resets when mail recovers', 'bcs-smtp-manager' ); ?></li>
+                                                </ul>
+                                        </aside>
+                                </div>
+                        </section>
+
+                        <!-- ═══ PANEL: Reports ════════════════════════════════════════════ -->
+                        <section id="bcs-smtp-panel-reports" class="bcs-smtp-tab-panel" role="tabpanel" aria-labelledby="bcs-smtp-tab-reports">
                                 <?php
-                                $prune_mode = get_option( 'bcs_log_prune_mode', 'days' );
+                                $report_ranges = array(
+                                        '7days'   => __( '7 days', 'bcs-smtp-manager' ),
+                                        '30days'  => __( '30 days', 'bcs-smtp-manager' ),
+                                        '3months' => __( '90 days', 'bcs-smtp-manager' ),
+                                );
                                 ?>
-                                <div class="bcs-smtp-accordion" style="margin-top:12px">
-                                        <button type="button" class="bcs-smtp-accordion-header" aria-expanded="false">
-                                                <span class="dashicons dashicons-trash"></span>
-                                                <span><?php esc_html_e( 'Log Retention', 'bcs-smtp-manager' ); ?></span>
-                                                <span class="bcs-smtp-accordion-arrow dashicons dashicons-arrow-down-alt2" style="margin-left:auto"></span>
-                                        </button>
-                                        <div class="bcs-smtp-accordion-body" style="display:none">
-                                                <p style="font-size:13px;color:var(--bcs-smtp-text-2);margin:0 0 16px"><?php esc_html_e( 'Automatically delete old log entries to keep the database lean. Runs daily via WP-Cron.', 'bcs-smtp-manager' ); ?></p>
-                                                <div class="bcs-smtp-check-list" style="flex-direction:column;gap:6px;margin-bottom:16px">
-                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:10px;padding:10px 14px">
-                                                                <input type="radio" name="bcs_smtp_prune_mode" class="bcs-smtp-prune-radio" value="days" <?php checked( $prune_mode, 'days' ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                <span class="bcs-smtp-check-label-title"><?php esc_html_e( 'Keep last', 'bcs-smtp-manager' ); ?></span>
-                                                                <input type="number" class="bcs-smtp-input" value="30" readonly disabled
-                                                                        style="width:80px;display:inline-block;opacity:.7;cursor:not-allowed">
-                                                                <span style="font-size:13px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'days', 'bcs-smtp-manager' ); ?> <span style="font-size:11px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( '(fixed)', 'bcs-smtp-manager' ); ?></span></span>
-                                                        </label>
-                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:10px;padding:10px 14px">
-                                                                <input type="radio" name="bcs_smtp_prune_mode" class="bcs-smtp-prune-radio" value="records" <?php checked( $prune_mode, 'records' ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                <span class="bcs-smtp-check-label-title"><?php esc_html_e( 'Keep last', 'bcs-smtp-manager' ); ?></span>
-                                                                <input type="number" class="bcs-smtp-input" value="1000" readonly disabled
-                                                                        style="width:80px;display:inline-block;opacity:.7;cursor:not-allowed">
-                                                                <span style="font-size:13px;color:var(--bcs-smtp-text-2)"><?php esc_html_e( 'records', 'bcs-smtp-manager' ); ?> <span style="font-size:11px;color:var(--bcs-smtp-text-3)"><?php esc_html_e( '(fixed)', 'bcs-smtp-manager' ); ?></span></span>
-                                                        </label>
-                                                </div>
-                                                <button type="button" id="bcs-smtp-save-log-prune-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Retention Settings', 'bcs-smtp-manager' ); ?>
-                                                </button>
-                                                <div id="bcs-smtp-log-prune-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
+                                <section class="bcs-smtp-panel bcs-smtp-report" aria-labelledby="bcs-smtp-report-title">
+                                        <div class="bcs-smtp-panel-head">
+                                                <div>
+                                                        <h2 id="bcs-smtp-report-title"><?php esc_html_e( 'Email delivery', 'bcs-smtp-manager' ); ?></h2>
+                                                        <p class="bcs-smtp-panel-sub" id="bcs-smtp-report-period"><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+                                                <div class="bcs-smtp-report-tools">
+                                                        <div class="bcs-smtp-segmented bcs-smtp-segmented--sm" role="radiogroup" aria-label="<?php esc_attr_e( 'Time range', 'bcs-smtp-manager' ); ?>">
+                                                                <?php foreach ( $report_ranges as $val => $label ) : ?>
+                                                                        <label><input type="radio" name="bcs_smtp_rp_range" class="bcs-smtp-rp-range" autocomplete="off" value="<?php echo esc_attr( $val ); ?>" data-label="<?php echo esc_attr( $label ); ?>" <?php checked( '30days', $val ); ?>><span><?php echo esc_html( $label ); ?></span></label>
+                                                                <?php endforeach; ?>
+                                                        </div>
+                                                        <button type="button" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" id="bcs-smtp-report-export">
+                                                                <span class="dashicons dashicons-download" aria-hidden="true"></span><?php esc_html_e( 'Export CSV', 'bcs-smtp-manager' ); ?>
+                                                        </button>
+                                                </div>
                                         </div>
+
+                                        <dl class="bcs-smtp-figures bcs-smtp-figures--5 bcs-smtp-report-stats">
+                                                <div><dt><?php esc_html_e( 'Total', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-total"><?php echo esc_html( number_format_i18n( $summary_30d['total'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--sent" aria-hidden="true"></span><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-success"><?php echo esc_html( number_format_i18n( $summary_30d['success'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--bad" aria-hidden="true"></span><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-failed" class="<?php echo $summary_30d['failed'] > 0 ? 'is-bad' : ''; ?>"><?php echo esc_html( number_format_i18n( $summary_30d['failed'] ) ); ?></dd></div>
+                                                <div><dt><span class="bcs-smtp-key bcs-smtp-key--warn" aria-hidden="true"></span><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></dt><dd id="bcs-smtp-report-unconfirmed"><?php echo esc_html( number_format_i18n( $summary_30d['unconfirmed'] ) ); ?></dd></div>
+                                                <div class="bcs-smtp-figure-rate">
+                                                        <dt><?php esc_html_e( 'Delivered', 'bcs-smtp-manager' ); ?></dt>
+                                                        <dd id="bcs-smtp-report-rate"><?php echo null === $rate ? '—' : esc_html( number_format_i18n( $rate, 1 ) ) . '<small>%</small>'; ?></dd>
+                                                        <span class="bcs-smtp-ratebar" aria-hidden="true"><span id="bcs-smtp-report-ratebar" style="width:<?php echo esc_attr( null === $rate ? 0 : $rate ); ?>%"></span></span>
+                                                </div>
+                                        </dl>
+
+                                        <div class="bcs-smtp-linechart bcs-smtp-linechart--lg" id="bcs-smtp-report-chart" tabindex="0"
+                                                role="img" aria-label="<?php esc_attr_e( 'Emails over time: sent, failed and unconfirmed. Use the left and right arrow keys to read each point.', 'bcs-smtp-manager' ); ?>"
+                                                data-chart="<?php echo esc_attr( wp_json_encode( $chart ) ); ?>">
+                                                <div class="bcs-smtp-linechart-tip" aria-live="polite" hidden></div>
+                                        </div>
+                                        <p class="bcs-smtp-chart-empty" id="bcs-smtp-chart-empty" <?php echo $summary_30d['total'] > 0 ? 'hidden' : ''; ?>><?php esc_html_e( 'No email was sent in this period.', 'bcs-smtp-manager' ); ?></p>
+                                </section>
+
+                                <div class="bcs-smtp-report-grid">
+                                        <section class="bcs-smtp-panel" aria-labelledby="bcs-smtp-highlights-title">
+                                                <div class="bcs-smtp-panel-head">
+                                                        <h2 id="bcs-smtp-highlights-title"><?php esc_html_e( 'Highlights', 'bcs-smtp-manager' ); ?></h2>
+                                                </div>
+                                                <dl class="bcs-smtp-highlights" id="bcs-smtp-highlights">
+                                                        <div><dt><span class="bcs-smtp-hl-icon dashicons dashicons-chart-line" aria-hidden="true"></span><?php esc_html_e( 'Average per day', 'bcs-smtp-manager' ); ?></dt><dd data-hl="avg">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon dashicons dashicons-calendar-alt" aria-hidden="true"></span><?php esc_html_e( 'Busiest day', 'bcs-smtp-manager' ); ?></dt><dd data-hl="peak">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-yes-alt" aria-hidden="true"></span><?php esc_html_e( 'Failure-free days', 'bcs-smtp-manager' ); ?></dt><dd data-hl="cleandays">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-awards" aria-hidden="true"></span><?php esc_html_e( 'Longest failure-free run', 'bcs-smtp-manager' ); ?></dt><dd data-hl="beststreak">—</dd></div>
+                                                        <div><dt><span class="bcs-smtp-hl-icon bcs-smtp-hl-icon--ok dashicons dashicons-groups" aria-hidden="true"></span><span><?php esc_html_e( 'People reached', 'bcs-smtp-manager' ); ?><small class="bcs-smtp-hl-sub"><?php esc_html_e( 'Visitors and customers who received your email', 'bcs-smtp-manager' ); ?></small></span></dt><dd data-hl="recipients" data-initial="<?php list( $own, $own_domains ) = $this->internal_recipients(); echo esc_attr( $this->db->count_unique_recipients( '30days', $own, $own_domains ) ); ?>">—</dd></div>
+                                                </dl>
+                                        </section>
+
+                                        <section class="bcs-smtp-panel bcs-smtp-schedule" aria-labelledby="bcs-smtp-schedule-title">
+                                                <div class="bcs-smtp-toggle-row bcs-smtp-toggle-row--head">
+                                                        <div class="bcs-smtp-toggle-row-info">
+                                                                <h2 id="bcs-smtp-schedule-title"><label for="bcs-smtp-report-schedule-enabled"><?php esc_html_e( 'Email me this report', 'bcs-smtp-manager' ); ?></label></h2>
+                                                                <p class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'On the 1st of every month at 9:00 am, a summary of last month’s sent, failed and unconfirmed email with a daily chart.', 'bcs-smtp-manager' ); ?></p>
+                                                        </div>
+                                                        <span class="bcs-smtp-toggle">
+                                                                <input type="checkbox" id="bcs-smtp-report-schedule-enabled" role="switch" aria-controls="bcs-smtp-report-body" <?php checked( $report_schedule_enabled ); ?>>
+                                                                <span class="bcs-smtp-toggle-slider" aria-hidden="true"></span>
+                                                        </span>
+                                                </div>
+                                                <div id="bcs-smtp-report-body" <?php echo $report_schedule_enabled ? '' : 'hidden'; ?>>
+                                                <div class="bcs-smtp-field">
+                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-report-emails-entry"><?php esc_html_e( 'Send to', 'bcs-smtp-manager' ); ?></label>
+                                                        <div class="bcs-smtp-chips" id="bcs-smtp-report-chips">
+                                                                <ul class="bcs-smtp-chip-list" aria-label="<?php esc_attr_e( 'Report recipients', 'bcs-smtp-manager' ); ?>"></ul>
+                                                                <input type="text" inputmode="email" id="bcs-smtp-report-emails-entry" class="bcs-smtp-chips-input" placeholder="<?php esc_attr_e( 'Add an email address', 'bcs-smtp-manager' ); ?>" autocomplete="off" spellcheck="false">
+                                                        </div>
+                                                        <input type="hidden" id="bcs-smtp-report-emails" value="<?php echo esc_attr( $report_emails ? $report_emails : get_option( 'admin_email' ) ); ?>">
+                                                </div>
+                                                <?php $next_report = $this->next_report_timestamp(); ?>
+                                                <p class="bcs-smtp-report-next" id="bcs-smtp-report-next" <?php echo $next_report ? '' : 'hidden'; ?>>
+                                                        <span class="dashicons dashicons-clock" aria-hidden="true"></span>
+                                                        <span id="bcs-smtp-report-next-text"><?php echo $next_report ? esc_html( $this->describe_next_report( $next_report ) ) : ''; ?></span>
+                                                </p>
+                                                </div>
+                                                <div class="bcs-smtp-alerts-off" id="bcs-smtp-report-off" <?php echo $report_schedule_enabled ? 'hidden' : ''; ?>>
+                                                        <span class="dashicons dashicons-email-alt" aria-hidden="true"></span>
+                                                        <p><?php esc_html_e( 'Monthly reports are off. Your stats stay on this page.', 'bcs-smtp-manager' ); ?></p>
+                                                </div>
+                                                <div class="bcs-smtp-actions">
+                                                        <button type="button" id="bcs-smtp-save-report-schedule-btn" class="bcs-smtp-btn bcs-smtp-btn-primary"><?php esc_html_e( 'Save schedule', 'bcs-smtp-manager' ); ?></button>
+                                                        <button type="button" id="bcs-smtp-send-report-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary" <?php echo $report_schedule_enabled ? '' : 'hidden'; ?>><?php esc_html_e( 'Send a report now', 'bcs-smtp-manager' ); ?></button>
+                                                </div>
+                                                <div id="bcs-smtp-report-schedule-msg" class="bcs-smtp-msg" role="status" aria-live="polite"></div>
+                                        </section>
                                 </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Email Report
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-email-report" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-card">
-                                        <div class="bcs-smtp-card-header">
-                                                <div style="display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px">
-                                                        <p class="bcs-smtp-card-title" style="margin:0"><span class="dashicons dashicons-chart-bar"></span><?php esc_html_e( 'Email Report', 'bcs-smtp-manager' ); ?></p>
-                                                        <select id="bcs-smtp-report-date-range" class="bcs-smtp-input" style="max-width:160px">
-                                                                <option value="today"><?php esc_html_e( 'Today', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="yesterday"><?php esc_html_e( 'Yesterday', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="7days"><?php esc_html_e( 'Last 7 days', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="30days" selected><?php esc_html_e( 'Last 30 days', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="this_week"><?php esc_html_e( 'This week', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="last_week"><?php esc_html_e( 'Last week', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="this_month"><?php esc_html_e( 'This month', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="3months"><?php esc_html_e( 'Last 3 months', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="6months"><?php esc_html_e( 'Last 6 months', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="year"><?php esc_html_e( 'This year', 'bcs-smtp-manager' ); ?></option>
-                                                                <option value="all"><?php esc_html_e( 'All time', 'bcs-smtp-manager' ); ?></option>
-                                                        </select>
-                                                </div>
-                                        </div>
-                                        <div class="bcs-smtp-card-body">
-                                                <!-- Summary stat boxes -->
-                                                <div class="bcs-smtp-report-stats" style="display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:20px">
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon good">
-                                                                        <span class="dashicons dashicons-yes"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value good" id="bcs-smtp-report-success" style="font-size:28px"><?php echo esc_html( $summary_30d['success'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Sent', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon bad">
-                                                                        <span class="dashicons dashicons-warning"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value bad" id="bcs-smtp-report-failed" style="font-size:28px"><?php echo esc_html( $summary_30d['failed'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Failed', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon">
-                                                                        <span class="dashicons dashicons-editor-help"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value" id="bcs-smtp-report-unconfirmed" style="font-size:28px"><?php echo esc_html( $summary_30d['unconfirmed'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Unconfirmed', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                        <div class="bcs-smtp-stat" style="border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);padding:16px">
-                                                                <div class="bcs-smtp-stat-icon">
-                                                                        <span class="dashicons dashicons-chart-bar"></span>
-                                                                </div>
-                                                                <div class="bcs-smtp-stat-body">
-                                                                        <div class="bcs-smtp-stat-value" id="bcs-smtp-report-total" style="font-size:28px"><?php echo esc_html( $summary_30d['total'] ); ?></div>
-                                                                        <div class="bcs-smtp-stat-label"><?php esc_html_e( 'Total', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <!-- Chart -->
-                                                <div style="position:relative;height:320px;width:100%;margin-bottom:0">
-                                                        <canvas id="bcs-smtp-report-chart"></canvas>
-                                                </div>
-                                        </div>
-                                </div>
-
-                                <!-- Schedule Report accordion — inside the panel, outside the card -->
-                                <div class="bcs-smtp-accordion" style="margin-top:12px">
-                                        <button type="button" class="bcs-smtp-accordion-header" aria-expanded="false">
-                                                <span class="dashicons dashicons-calendar-alt"></span>
-                                                <span><?php esc_html_e( 'Schedule Report', 'bcs-smtp-manager' ); ?></span>
-                                                <span class="bcs-smtp-accordion-arrow dashicons dashicons-arrow-down-alt2" style="margin-left:auto"></span>
-                                        </button>
-                                        <div class="bcs-smtp-accordion-body" style="display:none">
-                                                <div class="bcs-smtp-toggle-row" style="padding:4px 0 16px">
-                                                        <div class="bcs-smtp-toggle-row-info">
-                                                                <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable automated report emails', 'bcs-smtp-manager' ); ?></div>
-                                                                <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Automatically send email reports on the schedule below', 'bcs-smtp-manager' ); ?></div>
-                                                        </div>
-                                                        <label class="bcs-smtp-toggle">
-                                                                <input type="checkbox" id="bcs-smtp-report-schedule-enabled" <?php checked( $report_schedule_enabled ); ?>>
-                                                                <span class="bcs-smtp-toggle-slider"></span>
-                                                        </label>
-                                                </div>
-                                                <div class="bcs-smtp-field-row" style="margin-bottom:20px">
-                                                        <div class="bcs-smtp-field">
-                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-report-emails"><?php esc_html_e( 'Recipients', 'bcs-smtp-manager' ); ?> <span style="color:var(--bcs-smtp-text-3);font-weight:400"><?php esc_html_e( '(comma-separated)', 'bcs-smtp-manager' ); ?></span></label>
-                                                                <input type="text" id="bcs-smtp-report-emails" class="bcs-smtp-input" value="<?php echo esc_attr( $report_emails ); ?>" placeholder="admin@example.com, manager@example.com">
-                                                        </div>
-                                                        <div class="bcs-smtp-field">
-                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-report-frequency"><?php esc_html_e( 'Frequency', 'bcs-smtp-manager' ); ?></label>
-                                                                <select id="bcs-smtp-report-frequency" class="bcs-smtp-input">
-                                                                        <option value="daily"   <?php selected( $report_frequency, 'daily' ); ?>><?php esc_html_e( 'Daily', 'bcs-smtp-manager' ); ?></option>
-                                                                        <option value="weekly"  <?php selected( $report_frequency, 'weekly' ); ?>><?php esc_html_e( 'Weekly', 'bcs-smtp-manager' ); ?></option>
-                                                                        <option value="monthly" <?php selected( $report_frequency, 'monthly' ); ?>><?php esc_html_e( 'Monthly', 'bcs-smtp-manager' ); ?></option>
-                                                                </select>
-                                                        </div>
-                                                </div>
-                                                <div style="display:flex;align-items:center;gap:12px;flex-wrap:wrap">
-                                                        <button type="button" id="bcs-smtp-save-report-schedule-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Schedule', 'bcs-smtp-manager' ); ?>
-                                                        </button>
-                                                        <button type="button" id="bcs-smtp-send-report-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                <span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'Send Report Now', 'bcs-smtp-manager' ); ?>
-                                                        </button>
-                                                </div>
-                                                <div id="bcs-smtp-report-schedule-msg" role="status" aria-live="polite" style="display:none;margin-top:12px"></div>
-                                        </div>
-                                </div>
-
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Send Test Email
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-test" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-email"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( "Trigger a real email send via WordPress's", 'bcs-smtp-manager' ); ?> <code>wp_mail()</code>. <?php esc_html_e( 'This validates the full SMTP stack and logs the result.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field">
-                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-test-to"><?php esc_html_e( 'Recipient address', 'bcs-smtp-manager' ); ?></label>
-                                                                        <input type="email" id="bcs-smtp-test-to" class="bcs-smtp-input" value="<?php echo esc_attr( get_option( 'admin_email' ) ); ?>" placeholder="recipient@example.com">
-                                                                </div>
-
-                                                                <div style="margin-top:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap">
-                                                                        <button type="button" id="bcs-smtp-send-test-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                                <span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'Send Test Email', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <?php if ( $monitor_on ) : ?>
-                                                                        <button type="button" id="bcs-smtp-check-now-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                                <span class="dashicons dashicons-update"></span><?php esc_html_e( 'Run Health Check Now', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <?php endif; ?>
-                                                                </div>
-                                                                <div id="bcs-smtp-test-msg" role="status" aria-live="polite" style="display:none;margin-top:12px"></div>
-                                                        </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'What this tests', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'A real email is sent via', 'bcs-smtp-manager' ); ?> <code>wp_mail()</code> <?php esc_html_e( 'through your configured SMTP. The result is logged to the Email Log tab.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-bottom:0">
-                                                                        <span class="dashicons dashicons-info-outline"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px">
-                                                                                <strong><?php esc_html_e( 'Failure types detected:', 'bcs-smtp-manager' ); ?></strong>
-                                                                                <ul style="margin:6px 0 0 14px;padding:0">
-                                                                                        <li><strong><?php esc_html_e( 'Authentication Failure', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Bad credentials / OAuth token', 'bcs-smtp-manager' ); ?></li>
-                                                                                        <li><strong><?php esc_html_e( 'SMTP Rejection', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Server rejects the message', 'bcs-smtp-manager' ); ?></li>
-                                                                                        <li><strong><?php esc_html_e( 'Plugin / System Failure', 'bcs-smtp-manager' ); ?></strong> — <?php esc_html_e( 'Timeout, DNS, PHP error', 'bcs-smtp-manager' ); ?></li>
-                                                                                </ul>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Alerts
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-alerts" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <!-- Section 1: Enable Automated Monitoring -->
-                                                <div class="bcs-smtp-card">
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Enable Automated Monitoring', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Tests SMTP connectivity on a schedule and alerts on failure', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-monitor-enabled" <?php checked( $monitor_on ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
-                                                        </div>
-
-                                                        <div id="bcs-smtp-monitor-accordion" class="bcs-smtp-accordion <?php echo $monitor_on ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(99,102,241,.15);color:var(--bcs-smtp-indigo)">
-                                                                                        <span class="dashicons dashicons-clock"></span>
-                                                                                </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'Monitor Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Check interval & failure threshold', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                        </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-check-interval"><?php esc_html_e( 'Check every', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Minutes between automated SMTP tests', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'minutes', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-check-interval" class="bcs-smtp-input" value="<?php echo esc_attr( $check_interval ); ?>" min="1" max="1440" style="max-width:100px">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'Default: 5 min. Changing this reschedules the cron event immediately.', 'bcs-smtp-manager' ); ?></small>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-failure-threshold"><?php esc_html_e( 'Alert after', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Consecutive failures before alerting', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'consecutive failures', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-failure-threshold" class="bcs-smtp-input" value="<?php echo esc_attr( $threshold ); ?>" min="1" max="10" style="max-width:100px">
-                                                                        </div>
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-max-alert-count"><?php esc_html_e( 'Stop after', 'bcs-smtp-manager' ); ?> <abbr title="<?php esc_attr_e( 'Maximum notifications per failure cycle. 0 = unlimited.', 'bcs-smtp-manager' ); ?>">N</abbr> <?php esc_html_e( 'notifications', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="number" id="bcs-smtp-max-alert-count" class="bcs-smtp-input" value="<?php echo esc_attr( (int) get_option( BCS_SMTP_OPT_MAX_ALERT_COUNT, 0 ) ); ?>" min="0" max="100" style="max-width:100px">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( '0 = unlimited — resets automatically when SMTP recovers', 'bcs-smtp-manager' ); ?></small>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-
-                                                        <div style="margin-top:14px">
-                                                                <button type="button" id="bcs-smtp-save-monitor-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Monitor Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <div id="bcs-smtp-monitor-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
-                                                        </div>
-                                                </div>
-                                                </div>
-
-                                                <!-- Section 2: Alert Channel -->
-                                                <div class="bcs-smtp-card" style="margin-top:0">
-                                                <div class="bcs-smtp-card-body">
-                                                        <div class="bcs-smtp-toggle-row" style="margin-bottom:0">
-                                                                <div class="bcs-smtp-toggle-row-info">
-                                                                        <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Alert Channel', 'bcs-smtp-manager' ); ?></div>
-                                                                        <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Send failure alerts via an independent notification channel', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                                <label class="bcs-smtp-toggle">
-                                                                        <input type="checkbox" id="bcs-smtp-alert-channel-enabled" <?php checked( $alert_enabled ); ?>>
-                                                                        <span class="bcs-smtp-toggle-slider"></span>
-                                                                </label>
-                                                        </div>
-
-                                                        <div id="bcs-smtp-alert-channel-accordion" class="bcs-smtp-accordion <?php echo $alert_enabled ? 'open' : ''; ?>" style="margin-top:12px">
-                                                                <button type="button" class="bcs-smtp-accordion-head">
-                                                                        <div class="bcs-smtp-accordion-head-left">
-                                                                                <div class="bcs-smtp-accordion-head-icon" style="background:rgba(239,68,68,.12);color:var(--bcs-smtp-rose)">
-                                                                                        <span class="dashicons dashicons-megaphone"></span>
-                                                                                </div>
-                                                                                <div>
-                                                                                        <div class="bcs-smtp-accordion-head-title"><?php esc_html_e( 'Channel Settings', 'bcs-smtp-manager' ); ?></div>
-                                                                                        <div class="bcs-smtp-accordion-head-desc"><?php esc_html_e( 'Slack or Microsoft Teams webhook', 'bcs-smtp-manager' ); ?></div>
-                                                                                </div>
-                                                                        </div>
-                                                                        <span class="dashicons dashicons-arrow-down-alt2 bcs-smtp-accordion-chevron"></span>
-                                                                </button>
-                                                                <div class="bcs-smtp-accordion-body">
-                                                                        <div class="bcs-smtp-field">
-                                                                                <label class="bcs-smtp-field-label"><?php esc_html_e( 'Alert delivery method', 'bcs-smtp-manager' ); ?></label>
-                                                                                <div class="bcs-smtp-check-list" style="flex-direction:row;flex-wrap:wrap;gap:8px">
-                                                                                        <?php
-                                                                                        $channels = array(
-                                                                                                'slack'       => array( 'icon' => '💬', 'label' => __( 'Slack', 'bcs-smtp-manager' ) ),
-                                                                                                'teams'       => array( 'icon' => '🟦', 'label' => __( 'Teams', 'bcs-smtp-manager' ) ),
-                                                                                                'google_chat' => array( 'icon' => '🟢', 'label' => __( 'Google Chat', 'bcs-smtp-manager' ) ),
-                                                                                                'discord'     => array( 'icon' => '🟣', 'label' => __( 'Discord', 'bcs-smtp-manager' ) ),
-                                                                                                'custom'      => array( 'icon' => '🔗', 'label' => __( 'Custom Webhook', 'bcs-smtp-manager' ) ),
-                                                                                        );
-                                                                                        foreach ( $channels as $val => $ch ) : ?>
-                                                                                        <label class="bcs-smtp-check-item" style="flex-direction:row;align-items:center;gap:8px;padding:10px 16px;min-width:90px">
-                                                                                                <input type="radio" name="bcs_alert_channel" class="bcs-smtp-channel-radio" value="<?php echo esc_attr( $val ); ?>" <?php checked( $alert_channel, $val ); ?> style="width:20px;height:20px;flex-shrink:0">
-                                                                                                <span style="font-size:16px"><?php echo esc_html( $ch['icon'] ); ?></span>
-                                                                                                <div class="bcs-smtp-check-label-title"><?php echo esc_html( $ch['label'] ); ?></div>
-                                                                                        </label>
-                                                                                        <?php endforeach; ?>
-                                                                                </div>
-                                                                        </div>
-
-                                                                        <div id="bcs-smtp-slack-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-slack-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-slack-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://hooks.slack.com/services/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Apps → Incoming Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://api.slack.com/messaging/webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-teams-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-teams-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-teams-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://outlook.office.com/webhook/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Channel → Connectors → Incoming Webhook', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-google-chat-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-google-chat-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-google-chat-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://chat.googleapis.com/v1/spaces/…/messages?key=…&token=…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Space → Apps & integrations → Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://developers.google.com/workspace/chat/quickstart/webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-discord-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-discord-webhook-url"><?php esc_html_e( 'Incoming Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-discord-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://discord.com/api/webhooks/…/…">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <em><?php esc_html_e( 'Server Settings → Integrations → Webhooks', 'bcs-smtp-manager' ); ?></em> —
-                                                                                        <a href="https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks" target="_blank" rel="noopener"><?php esc_html_e( 'Setup guide ↗', 'bcs-smtp-manager' ); ?></a>
-                                                                                </small>
-                                                                        </div>
-                                                                        <div id="bcs-smtp-custom-webhook-row" class="bcs-smtp-field" style="display:none">
-                                                                                <label class="bcs-smtp-field-label" for="bcs-smtp-custom-webhook-url"><?php esc_html_e( 'Webhook URL', 'bcs-smtp-manager' ); ?></label>
-                                                                                <input type="url" id="bcs-smtp-custom-webhook-url" class="bcs-smtp-input"
-                                                                                        value="<?php echo esc_attr( get_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL, '' ) ); ?>"
-                                                                                        placeholder="https://example.com/your-webhook-endpoint">
-                                                                                <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block">
-                                                                                        <?php esc_html_e( 'Sends a structured JSON payload (event, site, error details, failure count) — use this with Zapier, Make, n8n, or your own endpoint.', 'bcs-smtp-manager' ); ?>
-                                                                                </small>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-
-                                                        <div style="margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;align-items:center">
-                                                                <button type="button" id="bcs-smtp-save-alerts-btn" class="bcs-smtp-btn bcs-smtp-btn-primary">
-                                                                        <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save Alert Settings', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                                <button type="button" id="bcs-smtp-test-alert-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary">
-                                                                        <span class="dashicons dashicons-megaphone"></span><?php esc_html_e( 'Send Test Alert', 'bcs-smtp-manager' ); ?>
-                                                                </button>
-                                                        </div>
-                                                        <div id="bcs-smtp-alerts-msg" role="status" aria-live="polite" style="display:none;margin-top:10px"></div>
-                                                </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-info-outline"></span><?php esc_html_e( 'How monitoring works', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group" style="gap:14px">
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">⏱ <?php esc_html_e( 'TCP-only test', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'WP-Cron connects to your SMTP server via TCP — no email is sent on successful checks.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">🔔 <?php esc_html_e( 'Failure-only alerts', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'Alerts only fire when consecutive failures hit your threshold. No noise on healthy checks.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row" style="border-radius:var(--bcs-smtp-radius);padding:12px 14px">
-                                                                                <span class="bcs-smtp-server-key" style="font-size:12px;font-weight:600;color:var(--bcs-smtp-indigo-h)">🔁 <?php esc_html_e( 'Auto-reset', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val" style="font-size:12px;color:var(--bcs-smtp-text-2);font-family:var(--bcs-smtp-font);margin-top:4px"><?php esc_html_e( 'When delivery recovers, the failure counter resets automatically.', 'bcs-smtp-manager' ); ?></span>
-                                                                        </div>
-                                                                </div>
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-info" style="margin-top:14px;margin-bottom:0">
-                                                                        <span class="dashicons dashicons-info-outline"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'WP-Cron fires on page load. For accurate intervals, point a real server', 'bcs-smtp-manager' ); ?> <code>crontab</code> <?php esc_html_e( 'at', 'bcs-smtp-manager' ); ?> <code>wp-cron.php</code>.</div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-shield"></span><?php esc_html_e( 'Alert message includes', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-check-list" style="gap:6px">
-                                                                        <?php
-                                                                        $fields = array(
-                                                                                __( 'Date and time of failure', 'bcs-smtp-manager' ),
-                                                                                __( 'Sending mailbox (from address)', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP host & port', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP plugin detected', 'bcs-smtp-manager' ),
-                                                                                __( 'Raw error message', 'bcs-smtp-manager' ),
-                                                                                __( 'Source IP address', 'bcs-smtp-manager' ),
-                                                                                __( 'Failure classification', 'bcs-smtp-manager' ),
-                                                                                __( 'Consecutive failure count', 'bcs-smtp-manager' ),
-                                                                                __( 'External provider status note', 'bcs-smtp-manager' ),
-                                                                        );
-                                                                        foreach ( $fields as $f ) : ?>
-                                                                        <div style="display:flex;align-items:center;gap:8px;font-size:12px;color:var(--bcs-smtp-text-2);padding:4px 0">
-                                                                                <span style="color:var(--bcs-smtp-emerald);font-size:14px">✓</span><?php echo wp_kses_post( $f ); ?>
-                                                                        </div>
-                                                                        <?php endforeach; ?>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
-
-                        <!-- ═══════════════════════════════════════════════════════════════
-                             PANEL: Config
-                             ═══════════════════════════════════════════════════════════════ -->
-                        <div id="bcs-smtp-panel-config" class="bcs-smtp-tab-panel">
-                                <div class="bcs-smtp-grid">
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-admin-generic"></span><?php esc_html_e( 'Detected SMTP Configuration', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'Auto-detected from your active SMTP configuration. Credentials are never stored by this plugin beyond what you enter in Settings.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-server-grid">
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Plugin', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['plugin'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Version', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['version'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'SMTP Host', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono"><?php echo esc_html( $info['host'] ?: '—' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Port', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono"><?php echo esc_html( $info['port'] ?: '—' ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Encryption', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( strtoupper( $info['encryption'] ?: '—' ) ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'From mailbox', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val bcs-smtp-mono" style="font-size:11px;word-break:break-all"><?php echo esc_html( $info['mailbox'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'Auth method', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( $info['auth_type'] ); ?></span>
-                                                                        </div>
-                                                                        <div class="bcs-smtp-server-row">
-                                                                                <span class="bcs-smtp-server-key"><?php esc_html_e( 'WordPress TZ', 'bcs-smtp-manager' ); ?></span>
-                                                                                <span class="bcs-smtp-server-val"><?php echo esc_html( wp_timezone_string() ); ?></span>
-                                                                        </div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-
-                                        <div>
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-shield"></span><?php esc_html_e( 'What is tracked', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group" style="gap:6px">
-                                                                        <?php
-                                                                        $tracked = array(
-                                                                                sprintf(
-                                                                                        /* translators: %s: wp_mail() function name wrapped in <code> tags. */
-                                                                                        __( 'All %s sends (subject, from, to, status)', 'bcs-smtp-manager' ),
-                                                                                        '<code>wp_mail()</code>'
-                                                                                ),
-                                                                                __( 'SMTP plugin detected', 'bcs-smtp-manager' ),
-                                                                                __( 'SMTP hostname & port', 'bcs-smtp-manager' ),
-                                                                                __( 'Encryption method (TLS / SSL)', 'bcs-smtp-manager' ),
-                                                                                __( 'From mailbox (sender address)', 'bcs-smtp-manager' ),
-                                                                                __( 'Authentication type', 'bcs-smtp-manager' ),
-                                                                        );
-                                                                        foreach ( $tracked as $t ) : ?>
-                                                                        <div style="display:flex;align-items:center;gap:8px;font-size:12px;color:var(--bcs-smtp-text-2);padding:4px 0">
-                                                                                <span style="color:var(--bcs-smtp-indigo-h)">◈</span><?php echo wp_kses_post( $t ); ?>
-                                                                        </div>
-                                                                        <?php endforeach; ?>
-                                                                </div>
-                                                                <div class="bcs-smtp-alert bcs-smtp-alert-warning" style="margin-top:14px;margin-bottom:0">
-                                                                        <span class="dashicons dashicons-warning"></span>
-                                                                        <div class="bcs-smtp-alert-content" style="font-size:11.5px"><?php esc_html_e( 'Email body content is', 'bcs-smtp-manager' ); ?> <strong><?php esc_html_e( 'never', 'bcs-smtp-manager' ); ?></strong> <?php esc_html_e( 'stored by default — only metadata. The optional Resend feature below is the sole exception.', 'bcs-smtp-manager' ); ?></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-controls-repeat"></span><?php esc_html_e( 'Failed Email Resend', 'bcs-smtp-manager' ); ?></p>
-                                                                <p class="bcs-smtp-card-desc"><?php esc_html_e( 'When enabled, the content of an email is stored only if it fails to send, so you can resend it from the Email Log. Off by default.', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-toggle-row" style="margin-bottom:14px">
-                                                                        <div class="bcs-smtp-toggle-row-info">
-                                                                                <div class="bcs-smtp-toggle-row-label"><?php esc_html_e( 'Store failed email content', 'bcs-smtp-manager' ); ?></div>
-                                                                                <div class="bcs-smtp-toggle-row-desc"><?php esc_html_e( 'Required for the Resend button to work — has no effect on emails that send successfully', 'bcs-smtp-manager' ); ?></div>
-                                                                        </div>
-                                                                        <label class="bcs-smtp-toggle">
-                                                                                <input type="checkbox" id="bcs-smtp-store-failed-body" <?php checked( $store_failed_body ); ?>>
-                                                                                <span class="bcs-smtp-toggle-slider"></span>
-                                                                        </label>
-                                                                </div>
-                                                                <div class="bcs-smtp-field">
-                                                                        <label class="bcs-smtp-field-label" for="bcs-smtp-failed-body-retention"><?php esc_html_e( 'Retention (days)', 'bcs-smtp-manager' ); ?></label>
-                                                                        <input type="number" id="bcs-smtp-failed-body-retention" class="bcs-smtp-input" style="max-width:120px" value="<?php echo esc_attr( $failed_body_retention ); ?>" min="1" max="30">
-                                                                        <small style="color:var(--bcs-smtp-text-3);font-size:11px;margin-top:4px;display:block"><?php esc_html_e( 'Stored content is auto-purged after this many days, independent of the overall log retention setting.', 'bcs-smtp-manager' ); ?></small>
-                                                                </div>
-                                                                <div style="margin-top:14px">
-                                                                        <button type="button" id="bcs-smtp-save-resend-btn" class="bcs-smtp-btn bcs-smtp-btn-primary bcs-smtp-btn-sm">
-                                                                                <span class="dashicons dashicons-saved"></span><?php esc_html_e( 'Save', 'bcs-smtp-manager' ); ?>
-                                                                        </button>
-                                                                        <div id="bcs-smtp-resend-settings-msg" role="status" aria-live="polite" style="display:none;margin-top:10px;width:100%"></div>
-                                                                </div>
-                                                        </div>
-                                                </div>
-
-                                                <div class="bcs-smtp-card">
-                                                        <div class="bcs-smtp-card-header">
-                                                                <p class="bcs-smtp-card-title"><span class="dashicons dashicons-admin-links"></span><?php esc_html_e( 'Quick links', 'bcs-smtp-manager' ); ?></p>
-                                                        </div>
-                                                        <div class="bcs-smtp-card-body">
-                                                                <div class="bcs-smtp-field-group">
-                                                                        <a href="https://admin.microsoft.com/" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Microsoft 365 Admin', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://status.office365.com/" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Microsoft 365 Status', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://api.slack.com/messaging/webhooks" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Slack Webhook Guide', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                        <a href="https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook" target="_blank" rel="noopener" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm bcs-smtp-btn-full">
-                                                                                <span class="dashicons dashicons-external"></span> <?php esc_html_e( 'Teams Webhook Guide', 'bcs-smtp-manager' ); ?>
-                                                                        </a>
-                                                                </div>
-                                                        </div>
-                                                </div>
-                                        </div>
-                                </div>
-                        </div>
+                        </section>
 
                 </div><!-- /.bcs-smtp-wrap -->

bcs-smtp-manager/trunk/assets/css/admin.css

@@ -1 +1 @@
 /* =====================================================================
-   CSS Variables - Dark Theme (default)
-   ===================================================================== */
-:root,
-[data-bcs-smtp-theme="dark"] {
-  --bcs-smtp-bg:#0f1117;--bcs-smtp-surface:#181c27;--bcs-smtp-surface-2:#1e2333;--bcs-smtp-surface-3:#252a3d;
-  --bcs-smtp-border:rgba(255,255,255,.07);--bcs-smtp-border-light:rgba(255,255,255,.12);
-  --bcs-smtp-indigo:#6366f1;--bcs-smtp-indigo-h:#818cf8;--bcs-smtp-indigo-dim:rgba(99,102,241,.15);--bcs-smtp-indigo-glow:rgba(99,102,241,.25);
-  --bcs-smtp-emerald:#10b981;--bcs-smtp-emerald-dim:rgba(16,185,129,.15);
-  --bcs-smtp-amber:#f59e0b;--bcs-smtp-amber-dim:rgba(245,158,11,.12);
-  --bcs-smtp-rose:#f43f5e;--bcs-smtp-rose-dim:rgba(244,63,94,.12);
-  --bcs-smtp-sky:#38bdf8;
-  --bcs-smtp-text:#e2e8f0;--bcs-smtp-text-2:#94a3b8;--bcs-smtp-text-3:#64748b;
-  --bcs-smtp-font:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--bcs-smtp-mono:ui-monospace,'Courier New',monospace;
-  --bcs-smtp-radius:10px;--bcs-smtp-radius-lg:16px;--bcs-smtp-radius-sm:6px;
-  --bcs-smtp-shadow:0 4px 24px rgba(0,0,0,.4);--bcs-smtp-t:.18s cubic-bezier(.4,0,.2,1);
-  --bcs-smtp-admin-bg:#0f1117;
-}
-
-html.wp-toolbar,body.wp-admin,#wpwrap,#wpcontent,#wpbody,#wpbody-content,#wpfooter { background:var(--bcs-smtp-admin-bg)!important; }
+   ByteCoreStack - SMTP & Health Monitor — admin UI
+   Dark, layered surfaces; #1450c4 for the primary action and active state.
+   ===================================================================== */
+
+@font-face{font-family:"BCS Outfit";src:url(../fonts/outfit-variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
+@font-face{font-family:"BCS Geist Mono";src:url(../fonts/geist-mono-variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
+
+:root{
+  --bcs-bg:#0a0e17;
+  --bcs-panel:#111725;
+  --bcs-raised:#161d2d;
+  --bcs-field:#0d1320;
+  --bcs-field-hover:#1a2234;
+  --bcs-seam:rgba(255,255,255,.07);
+  --bcs-seam-strong:rgba(255,255,255,.12);
+  --bcs-ink:#eef2f9;
+  --bcs-ink-2:#a7b2c7;
+  --bcs-ink-3:#808ca4;
+  --bcs-brand:#1450c4;
+  --bcs-brand-hover:#1c5fdc;
+  --bcs-brand-press:#0f3f9e;
+  --bcs-brand-ink:#8db4ff;
+  --bcs-brand-wash:rgba(20,80,196,.16);
+  --bcs-ok:#34d399;
+  --bcs-bad:#fb7185;
+  --bcs-warn:#fbbf24;
+  --bcs-off:#808ca4;
+  /* legacy aliases used by the other tabs */
+  --bcs-sent:var(--bcs-ok);--bcs-back:var(--bcs-bad);--bcs-held:var(--bcs-warn);
+  --bcs-font:"BCS Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
+  --bcs-mono:"BCS Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
+  --bcs-r:14px;
+  --bcs-r-sm:8px;
+  --bcs-shadow:inset 0 1px 0 rgba(255,255,255,.045),0 1px 2px rgba(0,0,0,.35),0 12px 32px -16px rgba(0,0,0,.65);
+  --bcs-ease:cubic-bezier(.22,1,.36,1);
+  --bcs-t:.18s var(--bcs-ease);
+}
+
+/* WordPress admin chrome on this screen only (stylesheet is enqueued for this page). */
+html.wp-toolbar,body.wp-admin,#wpwrap,#wpcontent,#wpbody,#wpbody-content{background:var(--bcs-bg)!important}
+#wpfooter{color:var(--bcs-ink-3)}
+#wpfooter a{color:var(--bcs-brand-ink)}
 
 .bcs-smtp-wrap,.bcs-smtp-wrap *{box-sizing:border-box}
-.bcs-smtp-wrap{font-family:var(--bcs-smtp-font);color:var(--bcs-smtp-text);max-width:none;width:100%;margin:0;padding:20px 20px 20px 0;overflow-x:hidden}
-.bcs-smtp-wrap h1,.bcs-smtp-wrap h2,.bcs-smtp-wrap h3{font-family:var(--bcs-smtp-font);color:var(--bcs-smtp-text)}
+.bcs-smtp-wrap{
+  font-family:var(--bcs-font);font-size:14px;line-height:1.55;color:var(--bcs-ink);
+  max-width:1320px;margin:0;padding:28px 24px 56px 8px;
+  font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
+  accent-color:var(--bcs-brand);color-scheme:dark;
+}
 .bcs-smtp-wrap .notice{display:none!important}
-.bcs-smtp-mono{font-family:var(--bcs-smtp-mono)}
+.bcs-smtp-wrap ::selection{background:rgba(141,180,255,.32);color:#fff}
+.bcs-smtp-wrap h1,.bcs-smtp-wrap h2,.bcs-smtp-wrap h3{font-family:var(--bcs-font);color:var(--bcs-ink);margin:0;padding:0;letter-spacing:-.015em}
+.bcs-smtp-wrap p{margin:0;font-size:14px}
+.bcs-smtp-wrap a{color:var(--bcs-brand-ink);text-underline-offset:3px}
+.bcs-smtp-wrap a:hover{color:#b3ccff}
+.bcs-smtp-wrap code{font-family:var(--bcs-mono);font-size:.86em;background:var(--bcs-field);color:var(--bcs-ink);padding:1px 5px;border-radius:4px}
+.bcs-smtp-wrap [hidden]{display:none!important}
+.bcs-smtp-mono{font-family:var(--bcs-mono);font-size:12.5px;letter-spacing:-.01em}
+.bcs-smtp-wrap :focus{outline:none;box-shadow:none}
+.bcs-smtp-wrap :focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:2px;border-radius:var(--bcs-r-sm)}
+.bcs-smtp-wrap *{scrollbar-width:thin;scrollbar-color:var(--bcs-seam-strong) transparent}
 
 /* =====================================================================
    Header
    ===================================================================== */
-.bcs-smtp-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 24px;background:linear-gradient(135deg,var(--bcs-smtp-surface-2) 0%,#1a1f33 100%);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius-lg);margin-bottom:24px}
-.bcs-smtp-header-left{display:flex;align-items:center;gap:14px;min-width:0}
-.bcs-smtp-header-right{display:flex;align-items:center;gap:10px}
-.bcs-smtp-header-icon{width:44px;height:44px;flex-shrink:0;background:var(--bcs-smtp-indigo-dim);border:1px solid var(--bcs-smtp-indigo);border-radius:var(--bcs-smtp-radius);display:flex;align-items:center;justify-content:center;box-shadow:0 0 20px var(--bcs-smtp-indigo-glow)}
-.bcs-smtp-header-icon .dashicons{color:var(--bcs-smtp-indigo);font-size:22px;width:22px;height:22px}
-.bcs-smtp-header h1{font-size:22px;font-weight:600;margin:0;color:var(--bcs-smtp-text);line-height:1}
-.bcs-smtp-header-sub{font-size:13px;color:var(--bcs-smtp-text-2);margin:3px 0 0;font-weight:400}
-.bcs-smtp-header-badge{font-size:11px;font-family:var(--bcs-smtp-mono);background:var(--bcs-smtp-surface-3);border:1px solid var(--bcs-smtp-border);color:var(--bcs-smtp-text-3);padding:4px 10px;border-radius:100px;white-space:nowrap}
-@media(max-width:600px){
-  .bcs-smtp-header-right{width:100%;justify-content:flex-start;padding-left:58px}
-}
-
-/* =====================================================================
-   Nav Tabs
-   ===================================================================== */
-.bcs-smtp-tabs{display:flex;gap:4px;margin-bottom:24px;border-bottom:1px solid var(--bcs-smtp-border);overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--bcs-smtp-surface-3) transparent}
-.bcs-smtp-tabs::-webkit-scrollbar{height:6px}
-.bcs-smtp-tabs::-webkit-scrollbar-track{background:transparent}
-.bcs-smtp-tabs::-webkit-scrollbar-thumb{background:var(--bcs-smtp-surface-3);border-radius:10px}
-.bcs-smtp-tab{display:inline-flex;align-items:center;gap:7px;padding:13px 18px;font-size:13px;font-weight:500;color:var(--bcs-smtp-text-2);border:none;background:transparent;border-bottom:4px solid transparent;margin-bottom:-1px;cursor:pointer;transition:color var(--bcs-smtp-t),border-color var(--bcs-smtp-t);font-family:var(--bcs-smtp-font);text-decoration:none;white-space:nowrap;flex-shrink:0}
-.bcs-smtp-tab:hover{color:var(--bcs-smtp-text)}
-.bcs-smtp-tab.active{color:var(--bcs-smtp-indigo-h);font-weight:600;border-bottom:4px solid var(--bcs-smtp-indigo)}
-.bcs-smtp-tab .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
+.bcs-smtp-brand{display:flex;align-items:center;gap:14px;min-width:0}
+.bcs-smtp-brand-mark{display:grid;place-items:center;width:42px;height:42px;flex-shrink:0;border-radius:11px;background:var(--bcs-brand);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 6px 16px -6px rgba(20,80,196,.7)}
+.bcs-smtp-brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-header h1{font-size:21px;font-weight:600;line-height:1.2;letter-spacing:-.02em}
+.bcs-smtp-header-sub{font-size:13px!important;color:var(--bcs-ink-3);margin-top:2px!important}
+.bcs-smtp-header-actions{display:flex;gap:10px}
+
+/* =====================================================================
+   Tabs
+   ===================================================================== */
+.bcs-smtp-tabs{position:relative;display:flex;gap:4px;width:fit-content;max-width:100%;padding:5px;margin-bottom:24px;background:var(--bcs-panel);border:1px solid var(--bcs-seam);border-radius:12px;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:none}
+.bcs-smtp-tabs::-webkit-scrollbar{display:none}
+.bcs-smtp-tab{
+  appearance:none;border:0;background:none;cursor:pointer;flex-shrink:0;white-space:nowrap;
+  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;margin:0;
+  font:500 14px/1 var(--bcs-font);color:var(--bcs-ink-3);border-radius:8px;
+  transition:color var(--bcs-t),background var(--bcs-t),box-shadow var(--bcs-t);
+}
+.bcs-smtp-tab .dashicons{font-size:17px;width:17px;height:17px;color:var(--bcs-ink-3);transition:color var(--bcs-t)}
+.bcs-smtp-tab:hover{color:var(--bcs-ink);background:var(--bcs-field)}
+.bcs-smtp-tab:hover .dashicons{color:var(--bcs-ink-2)}
+.bcs-smtp-tab[aria-selected="true"]{color:var(--bcs-ink);background:var(--bcs-brand-wash);box-shadow:inset 0 0 0 1px rgba(77,134,240,.38)}
+.bcs-smtp-tab[aria-selected="true"] .dashicons{color:var(--bcs-brand-ink)}
+.bcs-smtp-tab:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+.bcs-smtp-tab{position:relative;z-index:1}
+.bcs-smtp-tab-pill{position:absolute;top:0;left:0;width:0;height:0;border-radius:8px;background:var(--bcs-brand-wash);box-shadow:inset 0 0 0 1px rgba(77,134,240,.38);opacity:0;pointer-events:none;transition:transform .32s var(--bcs-ease),width .32s var(--bcs-ease)}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab-pill{opacity:1}
+.bcs-smtp-tabs.is-instant .bcs-smtp-tab-pill{transition:none}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab[aria-selected="true"]{background:transparent;box-shadow:none}
+.bcs-smtp-tabs.has-pill .bcs-smtp-tab:not([aria-selected="true"]):hover{background:var(--bcs-field)}
+.bcs-smtp-tab-dot{width:7px;height:7px;border-radius:50%;background:var(--bcs-ink-3);margin-left:-2px}
+.bcs-smtp-tab-dot[data-tone="ok"]{background:var(--bcs-ok)}
+.bcs-smtp-tab-dot[data-tone="bad"]{background:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-tab-dot[data-tone="warn"]{background:var(--bcs-warn)}
+.bcs-smtp-tab-dot:not([data-tone]){display:none}
+.bcs-smtp-tab-count{min-width:20px;text-align:center;font:600 11px/1 var(--bcs-font);font-variant-numeric:tabular-nums;padding:3px 6px;border-radius:99px;background:rgba(251,113,133,.16);color:var(--bcs-bad)}
 .bcs-smtp-tab-panel{display:none}
-.bcs-smtp-tab-panel.active{display:block}
-
-/* =====================================================================
-   Card
-   ===================================================================== */
-.bcs-smtp-card{background:var(--bcs-smtp-surface);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius-lg);margin-bottom:20px;position:relative;overflow:hidden}
-.bcs-smtp-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.3),transparent)}
-.bcs-smtp-card-header{padding:20px 24px 16px;border-bottom:1px solid var(--bcs-smtp-border)}
-.bcs-smtp-card-body{padding:24px}
-.bcs-smtp-card-title{font-size:14px;font-weight:600;color:var(--bcs-smtp-text);margin:0 0 4px;display:flex;align-items:center;gap:8px}
-.bcs-smtp-card-title .dashicons{color:var(--bcs-smtp-indigo);font-size:16px;width:16px;height:16px}
-.bcs-smtp-card-desc{font-size:13px;color:var(--bcs-smtp-text-2);margin:0;line-height:1.6}
-
-/* =====================================================================
-   Grid
-   ===================================================================== */
-.bcs-smtp-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px;align-items:start;min-width:0}
-.bcs-smtp-grid>div{min-width:0}
-@media(max-width:900px){.bcs-smtp-grid{grid-template-columns:1fr}}
-
-/* =====================================================================
-   Stat Row
-   ===================================================================== */
-.bcs-smtp-stat-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--bcs-smtp-border)}
-.bcs-smtp-stat{flex:1;min-width:160px;padding:14px 16px;background:var(--bcs-smtp-surface-2);border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);display:flex;align-items:center;gap:14px}
-.bcs-smtp-stat-icon{width:36px;height:36px;border-radius:var(--bcs-smtp-radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--bcs-smtp-indigo-dim);color:var(--bcs-smtp-indigo-h);border:1px solid rgba(99,102,241,.3)}
-.bcs-smtp-stat-icon .dashicons{font-size:18px;width:18px;height:18px}
-.bcs-smtp-stat-icon.good{background:var(--bcs-smtp-emerald-dim);color:var(--bcs-smtp-emerald);border-color:rgba(16,185,129,.3)}
-.bcs-smtp-stat-icon.bad{background:var(--bcs-smtp-rose-dim);color:var(--bcs-smtp-rose);border-color:rgba(244,63,94,.3)}
-.bcs-smtp-stat-body{min-width:0}
-.bcs-smtp-stat-value{font-size:20px;font-weight:600;color:var(--bcs-smtp-text);line-height:1;font-family:var(--bcs-smtp-mono)}
-.bcs-smtp-stat-label{font-size:11px;color:var(--bcs-smtp-text-3);margin-top:4px;text-transform:uppercase;letter-spacing:.06em}
-.bcs-smtp-stat-value.good{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-stat-value.bad{color:var(--bcs-smtp-rose)}
+.bcs-smtp-tab-panel.active{display:block;animation:bcs-panel-in .24s var(--bcs-ease)}
+@keyframes bcs-panel-in{from{opacity:.35;transform:translateY(6px)}to{opacity:1;transform:none}}
+
+/* =====================================================================
+   Panels & layout
+   ===================================================================== */
+.bcs-smtp-panel{background:var(--bcs-panel);border:1px solid var(--bcs-seam);border-radius:var(--bcs-r);padding:24px;min-width:0;box-shadow:var(--bcs-shadow)}
+.bcs-smtp-panel + .bcs-smtp-panel{margin-top:20px}
+.bcs-smtp-panel--flush{padding:0;overflow:hidden}
+.bcs-smtp-panel h2{font-size:16px;font-weight:600;line-height:1.3;margin-bottom:6px}
+.bcs-smtp-panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px 12px;margin-bottom:18px;flex-wrap:wrap}
+.bcs-smtp-panel-head h2{margin:0;display:flex;align-items:center;gap:10px}
+.bcs-smtp-panel-sub{font-size:13px!important;color:var(--bcs-ink-3)}
+.bcs-smtp-stack{display:flex;flex-direction:column;gap:20px;min-width:0}
+.bcs-smtp-stack > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-split{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr);gap:20px;align-items:start}
+.bcs-smtp-split > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-split > .bcs-smtp-test{position:sticky;top:52px}
+.bcs-smtp-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
+.bcs-smtp-count{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 7px;border-radius:99px;font:600 12px/1 var(--bcs-font);background:var(--bcs-raised);color:var(--bcs-ink-2)}
+.bcs-smtp-count--bad{background:rgba(251,113,133,.15);color:var(--bcs-bad)}
 
 /* =====================================================================
    Buttons
    ===================================================================== */
-.bcs-smtp-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--bcs-smtp-radius);font-size:14px;font-weight:600;font-family:var(--bcs-smtp-font);cursor:pointer;border:none;transition:all var(--bcs-smtp-t);text-decoration:none;white-space:nowrap;line-height:1}
-.bcs-smtp-btn-primary{background:linear-gradient(135deg,var(--bcs-smtp-indigo),#7c3aed);color:#fff;box-shadow:0 4px 14px var(--bcs-smtp-indigo-glow)}
-.bcs-smtp-btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--bcs-smtp-indigo-glow);color:#fff}
-.bcs-smtp-btn-primary:active{transform:translateY(0)}
-.bcs-smtp-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
-.bcs-smtp-btn-secondary{background:var(--bcs-smtp-surface-2);border:1px solid var(--bcs-smtp-border-light);color:var(--bcs-smtp-text-2)}
-.bcs-smtp-btn-secondary:hover{background:var(--bcs-smtp-surface-3);color:var(--bcs-smtp-text)}
-.bcs-smtp-btn-danger{background:var(--bcs-smtp-rose-dim);border:1px solid rgba(244,63,94,.3);color:var(--bcs-smtp-rose)}
-.bcs-smtp-btn-danger:hover{background:var(--bcs-smtp-rose);color:#fff}
-.bcs-smtp-btn-sm{padding:7px 14px;font-size:12px}
+.bcs-smtp-btn{
+  appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;
+  min-height:38px;padding:0 16px;border-radius:var(--bcs-r-sm);border:1px solid transparent;
+  font:600 14px/1 var(--bcs-font);text-decoration:none;white-space:nowrap;cursor:pointer;
+  transition:background var(--bcs-t),border-color var(--bcs-t),color var(--bcs-t),transform .08s ease;
+}
+.bcs-smtp-btn:active:not(:disabled){transform:translateY(1px)}
+.bcs-smtp-btn:disabled,.bcs-smtp-btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}
 .bcs-smtp-btn .dashicons{font-size:16px;width:16px;height:16px}
-.bcs-smtp-btn-full{width:100%}
-
-/* =====================================================================
-   Toggle (on/off switch)
-   ===================================================================== */
-.bcs-smtp-toggle{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}
-.bcs-smtp-toggle input{display:none}
-.bcs-smtp-toggle-slider{position:absolute;inset:0;cursor:pointer;background:var(--bcs-smtp-surface-3);border-radius:100px;border:1px solid var(--bcs-smtp-border-light);transition:all var(--bcs-smtp-t)}
-.bcs-smtp-toggle-slider::before{content:'';position:absolute;width:16px;height:16px;left:3px;top:50%;transform:translateY(-50%);background:var(--bcs-smtp-text-3);border-radius:50%;transition:all var(--bcs-smtp-t)}
-.bcs-smtp-toggle input:checked+.bcs-smtp-toggle-slider{background:var(--bcs-smtp-indigo);border-color:var(--bcs-smtp-indigo)}
-.bcs-smtp-toggle input:checked+.bcs-smtp-toggle-slider::before{transform:translate(20px,-50%);background:#fff}
-
-.bcs-smtp-toggle-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
-.bcs-smtp-toggle-row-info{flex:1}
-.bcs-smtp-toggle-row-label{font-size:14px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-toggle-row-desc{font-size:12px;color:var(--bcs-smtp-text-3);margin-top:2px}
-
-/* =====================================================================
-   Accordion
-   ===================================================================== */
-.bcs-smtp-accordion{border:1px solid var(--bcs-smtp-border);border-radius:var(--bcs-smtp-radius);margin-top:16px;overflow:hidden}
-.bcs-smtp-accordion-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--bcs-smtp-surface-2);cursor:pointer;user-select:none;transition:background var(--bcs-smtp-t);border:none;width:100%;text-align:left;font-family:var(--bcs-smtp-font)}
-.bcs-smtp-accordion-head:hover{background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-accordion-head-left{display:flex;align-items:center;gap:10px}
-.bcs-smtp-accordion-head-icon{width:32px;height:32px;border-radius:var(--bcs-smtp-radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
-.bcs-smtp-accordion-head-icon .dashicons{font-size:16px;width:16px;height:16px}
-.bcs-smtp-accordion-head-title{font-size:13px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-accordion-head-desc{font-size:12px;color:var(--bcs-smtp-text-2);margin-top:1px}
-.bcs-smtp-accordion-chevron{color:var(--bcs-smtp-text-3);transition:transform var(--bcs-smtp-t);font-size:16px;width:16px;height:16px}
-.bcs-smtp-accordion.open .bcs-smtp-accordion-chevron{transform:rotate(180deg)}
-.bcs-smtp-accordion-body{display:none;padding:18px;border-top:1px solid var(--bcs-smtp-border);background:var(--bcs-smtp-bg)}
-.bcs-smtp-accordion.open .bcs-smtp-accordion-body{display:block}
-.bcs-smtp-accordion-header{display:flex;align-items:center;gap:10px;padding:14px 18px;background:var(--bcs-smtp-surface-2);cursor:pointer;user-select:none;transition:background var(--bcs-smtp-t);border:none;width:100%;text-align:left;font-family:var(--bcs-smtp-font);font-size:13px;font-weight:600;color:var(--bcs-smtp-text)}
-.bcs-smtp-accordion-header:hover{background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-accordion-arrow{transition:transform var(--bcs-smtp-t);color:var(--bcs-smtp-text-3);font-size:16px;width:16px;height:16px}
-
-/* =====================================================================
-   Fields / Inputs
-   ===================================================================== */
-.bcs-smtp-field{margin-top:14px}
-.bcs-smtp-field-label{font-size:12px;color:var(--bcs-smtp-text-2);display:block;margin-bottom:6px}
-.bcs-smtp-input{width:100%;padding:10px 14px;background:var(--bcs-smtp-surface-2)!important;border:1px solid var(--bcs-smtp-border-light)!important;border-radius:var(--bcs-smtp-radius-sm);color:var(--bcs-smtp-text)!important;font-size:13px;font-family:var(--bcs-smtp-mono);transition:border-color var(--bcs-smtp-t),box-shadow var(--bcs-smtp-t);outline:none;box-sizing:border-box;box-shadow:none!important}
-input.bcs-smtp-input,select.bcs-smtp-input{height:38px!important;min-height:38px}
-.bcs-smtp-input:focus{border-color:var(--bcs-smtp-indigo)!important;box-shadow:0 0 0 3px var(--bcs-smtp-indigo-dim)!important}
-textarea.bcs-smtp-input{font-family:var(--bcs-smtp-font);resize:vertical;min-height:60px;height:auto!important}
-select.bcs-smtp-input{appearance:none!important;-webkit-appearance:none!important;padding-right:36px!important;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E")!important;background-repeat:no-repeat!important;background-position:right 12px center!important;background-size:12px!important;cursor:pointer}
-select.bcs-smtp-input option{background:var(--bcs-smtp-surface-2);color:var(--bcs-smtp-text)}
-.bcs-smtp-field-group{display:flex;flex-direction:column;gap:12px}
-
-/* Two-up field row — e.g. From Email/Name, Host/Port, Username/Password, Recipients/Frequency */
-.bcs-smtp-field-row{display:flex;gap:16px;margin-top:14px}
-.bcs-smtp-field-row .bcs-smtp-field{flex:1;min-width:0;margin-top:0}
-@media(max-width:600px){
-  .bcs-smtp-field-row{flex-direction:column;gap:14px}
-}
-
-/* Password field — show/hide eye toggle */
+.bcs-smtp-btn-primary{background:var(--bcs-brand);color:#fff}
+.bcs-smtp-btn-primary:hover:not(:disabled){background:var(--bcs-brand-hover);color:#fff}
+.bcs-smtp-btn-primary:active:not(:disabled){background:var(--bcs-brand-press)}
+.bcs-smtp-btn-secondary{background:var(--bcs-field);border-color:var(--bcs-seam-strong);color:var(--bcs-ink)}
+.bcs-smtp-btn-secondary:hover:not(:disabled){background:var(--bcs-field-hover);color:#fff;border-color:#40507a}
+.bcs-smtp-btn-sm{min-height:30px;padding:0 12px;font-size:13px}
+.bcs-smtp-btn-lg{min-height:44px;padding:0 22px;font-size:15px}
+.bcs-smtp-btn.is-busy{cursor:progress}
+.bcs-smtp-btn.is-busy::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:bcs-spin .7s linear infinite}
+@keyframes bcs-spin{to{transform:rotate(360deg)}}
+.bcs-smtp-link{appearance:none;background:none;border:0;padding:0;cursor:pointer;font:600 13px/1.4 var(--bcs-font);color:var(--bcs-brand-ink);text-decoration:underline;text-decoration-color:rgba(141,180,255,.35);text-underline-offset:3px}
+.bcs-smtp-link:hover{color:#b3ccff;text-decoration-color:currentColor}
+
+/* =====================================================================
+   Status chips — one vocabulary for every email's delivery state
+   ===================================================================== */
+.bcs-smtp-status{
+  --tone:var(--bcs-off);
+  display:inline-flex;align-items:center;gap:7px;height:24px;padding:0 10px 0 8px;border-radius:7px;white-space:nowrap;
+  font:500 12.5px/1 var(--bcs-font);color:var(--bcs-ink);
+  background:color-mix(in srgb,var(--tone) 12%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--tone) 24%,transparent);
+}
+.bcs-smtp-status-dot{width:7px;height:7px;border-radius:50%;background:var(--tone);flex-shrink:0}
+.bcs-smtp-status--ok{--tone:var(--bcs-ok)}
+.bcs-smtp-status--bad{--tone:var(--bcs-bad)}
+.bcs-smtp-status--warn{--tone:var(--bcs-warn)}
+.bcs-smtp-status.is-updated{animation:bcs-chip-in .32s var(--bcs-ease)}
+@keyframes bcs-chip-in{from{transform:scale(.9);opacity:.2}to{transform:none;opacity:1}}
+
+.bcs-smtp-key{display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--bcs-off);flex-shrink:0}
+.bcs-smtp-key--ok{background:var(--bcs-ok)}
+.bcs-smtp-key--sent{background:var(--bcs-brand-ink)}
+.bcs-smtp-key--bad{background:var(--bcs-bad)}
+.bcs-smtp-key--warn{background:var(--bcs-warn)}
+
+/* =====================================================================
+   Overview
+   ===================================================================== */
+
+/* Health banner — the one thing to read first */
+.bcs-smtp-hero{
+  --tone:var(--bcs-off);
+  position:relative;overflow:hidden;border-radius:var(--bcs-r);padding:28px 28px 0;
+  background:color-mix(in srgb,var(--tone) 8%,var(--bcs-panel));
+  border:1px solid color-mix(in srgb,var(--tone) 38%,transparent);box-shadow:var(--bcs-shadow);
+}
+.bcs-smtp-hero--ok{--tone:var(--bcs-ok)}
+.bcs-smtp-hero--bad{--tone:var(--bcs-bad)}
+.bcs-smtp-hero--warn{--tone:var(--bcs-warn)}
+.bcs-smtp-hero--off{--tone:var(--bcs-off)}
+.bcs-smtp-hero-main{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:20px;padding-bottom:26px}
+.bcs-smtp-hero-copy h2{font-size:26px;font-weight:600;line-height:1.15;letter-spacing:-.025em;margin-bottom:6px}
+.bcs-smtp-hero-copy p{color:var(--bcs-ink-2);font-size:14.5px;max-width:64ch}
+.bcs-smtp-hero-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
+
+.bcs-smtp-beacon{position:relative;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:color-mix(in srgb,var(--tone) 14%,transparent);border:1px solid color-mix(in srgb,var(--tone) 30%,transparent)}
+.bcs-smtp-beacon span{width:16px;height:16px;border-radius:50%;background:var(--tone);box-shadow:inset 0 -2px 0 rgba(0,0,0,.18)}
+.bcs-smtp-beacon::after{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--tone);opacity:0}
+.bcs-smtp-hero--ok .bcs-smtp-beacon::after{animation:bcs-beacon 2.8s var(--bcs-ease) infinite}
+@keyframes bcs-beacon{0%{transform:scale(1);opacity:.55}70%,100%{transform:scale(1.55);opacity:0}}
+
+.bcs-smtp-hero-facts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0 -28px;border-top:1px solid color-mix(in srgb,var(--tone) 22%,transparent);background:color-mix(in srgb,var(--tone) 4%,var(--bcs-panel))}
+.bcs-smtp-hero-facts > div{padding:14px 28px;min-width:0;border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-hero-facts > div:first-child{border-left:0}
+.bcs-smtp-hero-facts dt{font-size:12px;color:var(--bcs-ink-3);margin-bottom:3px}
+.bcs-smtp-hero-facts dd{margin:0;font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-hero-msg{margin:0;padding:0 0 18px}
+.bcs-smtp-hero-msg:empty{display:none}
+
+/* Grid: activity chart + setup checklist */
+.bcs-smtp-overview-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;margin-top:20px;align-items:start}
+.bcs-smtp-overview-grid{align-items:stretch}
+.bcs-smtp-overview-grid > .bcs-smtp-activity{display:flex;flex-direction:column}
+.bcs-smtp-overview-grid > .bcs-smtp-activity .bcs-smtp-linechart{flex:1 1 auto;min-height:200px;height:auto}
+.bcs-smtp-side{display:flex;flex-direction:column;gap:20px;min-width:0}
+.bcs-smtp-side > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-side > .bcs-smtp-quick{flex:1 1 auto;display:flex;flex-direction:column}
+.bcs-smtp-quick .bcs-smtp-quick-list{flex:1 1 auto;justify-content:space-evenly}
+.bcs-smtp-side .bcs-smtp-panel{padding:20px 22px}
+.bcs-smtp-side .bcs-smtp-panel-head{margin-bottom:14px}
+
+/* Quick actions */
+.bcs-smtp-quick-list{list-style:none;margin:0 -12px;padding:0;display:flex;flex-direction:column;gap:2px}
+.bcs-smtp-quick-list li{margin:0}
+.bcs-smtp-quick-list button{appearance:none;width:100%;display:flex;align-items:center;gap:12px;padding:7px 12px;border:0;border-radius:10px;background:none;cursor:pointer;text-align:left;color:var(--bcs-ink);font-family:var(--bcs-font);transition:background var(--bcs-t)}
+.bcs-smtp-quick-list button:hover{background:rgba(255,255,255,.04)}
+.bcs-smtp-quick-icon{display:grid!important;place-items:center;width:32px!important;height:32px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:18px!important}
+.bcs-smtp-quick-icon--bad{background:rgba(251,113,133,.13);color:var(--bcs-bad)}
+.bcs-smtp-quick-icon--ok{background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-quick-text{display:flex;flex-direction:column;min-width:0;flex:1}
+.bcs-smtp-quick-text strong{font-weight:500;font-size:14px}
+.bcs-smtp-quick-text small{font-size:12.5px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-quick-list button > .dashicons:last-child{color:var(--bcs-ink-3);font-size:16px;width:16px;height:16px;transition:transform var(--bcs-t),color var(--bcs-t)}
+.bcs-smtp-quick-list button:hover > .dashicons:last-child{color:var(--bcs-ink);transform:translateX(2px)}
+.bcs-smtp-overview-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+
+/* Email activity — line chart */
+.bcs-smtp-segmented--sm{padding:2px}
+.bcs-smtp-segmented--sm span{min-height:28px;padding:0 11px;font-size:12.5px}
+.bcs-smtp-linechart{position:relative;height:260px;margin:0 -6px;border-radius:var(--bcs-r-sm);cursor:crosshair}
+.bcs-smtp-linechart:focus-visible{outline-offset:4px}
+.bcs-smtp-linechart svg{display:block;width:100%;height:100%;overflow:visible}
+.bcs-smtp-lc-grid line{stroke:var(--bcs-seam);stroke-width:1}
+.bcs-smtp-lc-grid line.is-base{stroke:var(--bcs-seam-strong)}
+.bcs-smtp-lc-label{fill:var(--bcs-ink-3);font:500 11.5px var(--bcs-font)}
+.bcs-smtp-lc-area{fill:var(--bcs-brand-ink);opacity:.1}
+.bcs-smtp-lc-line{fill:none;stroke-width:2.25;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-lc-line.is-sent{stroke:var(--bcs-brand-ink)}
+.bcs-smtp-lc-line.is-failed{stroke:var(--bcs-bad)}
+.bcs-smtp-lc-line.is-unconfirmed{stroke:var(--bcs-warn);stroke-dasharray:4 4}
+.bcs-smtp-lc-line{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:bcs-draw .9s var(--bcs-ease) forwards}
+.bcs-smtp-lc-line.is-unconfirmed{animation:none;stroke-dashoffset:0}
+@keyframes bcs-draw{to{stroke-dashoffset:0}}
+.bcs-smtp-lc-cursor{stroke:var(--bcs-ink-3);stroke-width:1;stroke-dasharray:3 3;opacity:0;transition:opacity .12s}
+.bcs-smtp-lc-dot{stroke:var(--bcs-panel);stroke-width:2.5;opacity:0;transition:opacity .12s}
+.bcs-smtp-linechart.is-hover .bcs-smtp-lc-cursor,.bcs-smtp-linechart.is-hover .bcs-smtp-lc-dot{opacity:1}
+.bcs-smtp-linechart-tip{position:absolute;top:0;z-index:2;min-width:168px;padding:10px 12px;border-radius:10px;pointer-events:none;
+  background:#0a0e17;border:1px solid var(--bcs-seam-strong);box-shadow:0 10px 28px -8px rgba(0,0,0,.7);font-size:13px;line-height:1.5;transform:translateX(-50%)}
+.bcs-smtp-linechart-tip strong{display:block;font-weight:600;margin-bottom:4px}
+.bcs-smtp-linechart-tip span{display:flex;align-items:center;gap:8px;color:var(--bcs-ink-2)}
+.bcs-smtp-linechart-tip b{margin-left:auto;color:var(--bcs-ink);font-weight:600}
+.bcs-smtp-activity-foot{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:16px -24px -24px!important;padding:14px 24px;border-top:1px solid var(--bcs-seam);border-radius:0 0 var(--bcs-r) var(--bcs-r);background:rgba(0,0,0,.14);font-size:13.5px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-activity .bcs-smtp-chart-empty{margin-top:-140px!important;text-align:center;color:var(--bcs-ink-3);position:relative}
+
+/* Finish setting up */
+.bcs-smtp-progress{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;margin:-6px 0 18px}
+.bcs-smtp-progress span{height:4px;border-radius:2px;background:var(--bcs-seam-strong)}
+.bcs-smtp-progress span.is-done{background:var(--bcs-brand)}
+.bcs-smtp-checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
+.bcs-smtp-checklist li{display:flex;align-items:center;gap:12px;margin:0;padding:8px 0;border-top:1px solid var(--bcs-seam);font-size:14px}
+.bcs-smtp-checklist li:first-child{border-top:0;padding-top:0}
+.bcs-smtp-checklist li.is-done{color:var(--bcs-ink-3)}
+.bcs-smtp-check-dot{display:grid!important;place-items:center;width:20px!important;height:20px!important;border-radius:50%;border:1.5px solid var(--bcs-seam-strong);font-size:15px!important;flex-shrink:0}
+.is-done .bcs-smtp-check-dot{border-color:transparent;background:rgba(52,211,153,.16);color:var(--bcs-ok)}
+.bcs-smtp-link--plain{display:inline-flex;align-items:center;gap:4px;text-decoration:none;color:var(--bcs-ink)!important;font-weight:500;font-size:14px}
+.bcs-smtp-link--plain .dashicons{font-size:15px;width:15px;height:15px;color:var(--bcs-brand-ink);transition:transform var(--bcs-t)}
+.bcs-smtp-link--plain:hover .dashicons{transform:translateX(2px)}
+
+/* Last 30 days */
+.bcs-smtp-figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0 0 22px}
+.bcs-smtp-figures > div{min-width:0}
+.bcs-smtp-figures dt{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-figures dd{margin:6px 0 0;font:600 28px/1 var(--bcs-font);letter-spacing:-.03em;color:var(--bcs-ink);white-space:nowrap}
+.bcs-smtp-figures dd.is-bad{color:var(--bcs-bad)}
+.bcs-smtp-figures dd small{font-size:16px;font-weight:500;color:var(--bcs-ink-3);margin-left:1px;letter-spacing:0}
+
+
+/* Fact grid (Settings → What WordPress is using) */
+.bcs-smtp-facts{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-facts > div{padding:11px 0;border-bottom:1px solid var(--bcs-seam);min-width:0}
+.bcs-smtp-facts > div:nth-child(odd){padding-right:14px}
+.bcs-smtp-facts dt{font-size:12px;color:var(--bcs-ink-3)}
+.bcs-smtp-facts dd{margin:2px 0 0;font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-facts--plain{margin-top:14px}
+
+/* =====================================================================
+   Guided setup — providers, steps, fields
+   ===================================================================== */
+
+.bcs-smtp-provider-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:8px}
+.bcs-smtp-provider-grid--compact{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
+.bcs-smtp-provider{
+  position:relative;display:flex;align-items:center;gap:10px;min-height:52px;padding:8px 12px;cursor:pointer;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam);border-radius:var(--bcs-r-sm);
+  font:500 13.5px/1.25 var(--bcs-font);color:var(--bcs-ink);text-align:left;
+  transition:border-color var(--bcs-t),background var(--bcs-t);
+}
+button.bcs-smtp-provider{appearance:none;width:100%}
+.bcs-smtp-provider:hover{border-color:var(--bcs-seam-strong);background:var(--bcs-field-hover)}
+.bcs-smtp-provider input{position:absolute;opacity:0;width:1px;height:1px;margin:0;pointer-events:none}
+.bcs-smtp-provider-mark{display:grid;place-items:center;width:32px;height:32px;flex-shrink:0;border-radius:6px;background:var(--bcs-panel);border:1px solid var(--bcs-seam-strong);font:700 12px/1 var(--bcs-font);letter-spacing:.02em;color:var(--bcs-ink-2);transition:background var(--bcs-t),color var(--bcs-t),border-color var(--bcs-t)}
+.bcs-smtp-provider .bcs-smtp-provider-mark{background:color-mix(in srgb,var(--tone) 15%,var(--bcs-panel));border-color:color-mix(in srgb,var(--tone) 38%,transparent);color:color-mix(in srgb,var(--tone) 75%,#fff)}
+.bcs-smtp-provider-mark .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-provider:has(input:checked){border-color:var(--bcs-brand);background:var(--bcs-brand-wash)}
+.bcs-smtp-provider:has(input:checked) .bcs-smtp-provider-mark{background:var(--tone);border-color:var(--tone);color:#fff}
+.bcs-smtp-provider:has(input:focus-visible){outline:2px solid var(--bcs-brand-ink);outline-offset:2px}
+
+.bcs-smtp-provider-note{display:flex;gap:10px;align-items:flex-start;margin-top:14px!important;padding:12px 14px;border-radius:var(--bcs-r-sm);background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13.5px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-provider-note .dashicons{color:var(--bcs-brand-ink);font-size:18px;width:18px;height:18px;flex-shrink:0}
+.bcs-smtp-provider-note a{font-weight:600;margin-left:4px}
+
+.bcs-smtp-field{display:flex;flex-direction:column;min-width:0;margin-top:16px}
+.bcs-smtp-field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
+.bcs-smtp-field-row .bcs-smtp-field{margin-top:16px}
+.bcs-smtp-field-row:has(.bcs-smtp-field--port){grid-template-columns:minmax(0,1fr) 120px}
+.bcs-smtp-field-row:has(> .bcs-smtp-field--grow:first-child):not(:has(.bcs-smtp-field--port)){grid-template-columns:minmax(0,1fr) auto}
+.bcs-smtp-field-label{font-size:13px;font-weight:600;color:var(--bcs-ink);margin-bottom:6px;display:block}
+.bcs-smtp-hint{display:block;font-size:12.5px;color:var(--bcs-ink-3);margin-top:6px;line-height:1.45}
+.bcs-smtp-hint.is-good{color:var(--bcs-sent)}
+.bcs-smtp-hint.is-bad{color:var(--bcs-back)}
+
+.bcs-smtp-wrap .bcs-smtp-input{
+  width:100%;min-height:40px;height:40px;padding:0 12px;margin:0;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm);
+  color:var(--bcs-ink);font:400 14px/1.4 var(--bcs-font);box-shadow:none;
+  transition:border-color var(--bcs-t),box-shadow var(--bcs-t),background var(--bcs-t);
+}
+.bcs-smtp-wrap .bcs-smtp-input.bcs-smtp-mono{font-family:var(--bcs-mono);font-size:13px}
+.bcs-smtp-wrap .bcs-smtp-input::placeholder{color:#6f7c97}
+.bcs-smtp-wrap .bcs-smtp-input:hover{border-color:#40507a}
+.bcs-smtp-wrap .bcs-smtp-input:focus{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 3px rgba(141,180,255,.18);outline:none}
+.bcs-smtp-wrap .bcs-smtp-input:disabled{opacity:.6}
+.bcs-smtp-wrap .bcs-smtp-input.is-invalid{border-color:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-wrap .bcs-smtp-input--num{width:76px;text-align:center;padding:0 6px}
+.bcs-smtp-wrap .bcs-smtp-select{
+  appearance:none;-webkit-appearance:none;width:auto;min-width:150px;padding-right:34px;cursor:pointer;
+  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23aab5ca' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
+  background-repeat:no-repeat;background-position:right 12px center;background-size:12px;
+}
+.bcs-smtp-wrap .bcs-smtp-select--sm{min-width:72px;min-height:30px;height:30px;font-size:13px}
+.bcs-smtp-wrap select.bcs-smtp-input option{background:var(--bcs-field);color:var(--bcs-ink)}
+/* WordPress core darkens select text on hover/focus (#1e1e1e), which vanishes on this theme. */
+.wp-core-ui .bcs-smtp-wrap select.bcs-smtp-input:hover,.wp-core-ui .bcs-smtp-wrap select.bcs-smtp-input:focus{color:var(--bcs-ink)}
+
 .bcs-smtp-pw-wrap{position:relative}
-.bcs-smtp-pw-wrap input{padding-right:40px!important}
-.bcs-smtp-pw-eye{position:absolute;top:50%;right:6px;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:transparent;border:none;cursor:pointer;color:var(--bcs-smtp-text-3);border-radius:4px;transition:color var(--bcs-smtp-t),background var(--bcs-smtp-t)}
-.bcs-smtp-pw-eye:hover{color:var(--bcs-smtp-text);background:var(--bcs-smtp-surface-3)}
-.bcs-smtp-pw-eye .dashicons{font-size:16px;width:16px;height:16px}
-
-/* Cancel-password-change link — pulses briefly each time it's revealed */
-@keyframes bcs-smtp-pw-cancel-pulse{
-  0%{background:rgba(99,102,241,.3);box-shadow:0 0 0 4px rgba(99,102,241,.2)}
-  100%{background:transparent;box-shadow:0 0 0 0 rgba(99,102,241,0)}
-}
-#bcs-smtp-pw-cancel-row{animation:bcs-smtp-pw-cancel-pulse 1.6s ease-out;border-radius:6px;padding:4px 8px;margin-left:-8px}
-
-/* =====================================================================
-   Checkboxes / Radio
-   ===================================================================== */
-.bcs-smtp-check-list{display:flex;flex-direction:column;gap:10px}
-.bcs-smtp-check-item{display:flex;align-items:flex-start;gap:10px;cursor:pointer;padding:10px 12px;border-radius:var(--bcs-smtp-radius-sm);border:1px solid transparent;transition:border-color var(--bcs-smtp-t),background var(--bcs-smtp-t)}
-.bcs-smtp-check-item:hover{background:var(--bcs-smtp-surface);border-color:var(--bcs-smtp-border)}
-.bcs-smtp-check-item input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:16px;height:16px;border-radius:4px;flex-shrink:0;margin-top:2px;border:1.5px solid var(--bcs-smtp-border-light);background:var(--bcs-smtp-surface-2);cursor:pointer;transition:all var(--bcs-smtp-t);position:relative}
-.bcs-smtp-check-item input[type="checkbox"]:checked{background:var(--bcs-smtp-indigo);border-color:var(--bcs-smtp-indigo)}
-.bcs-smtp-check-item input[type="checkbox"]:checked::after{content:'';position:absolute;left:4px;top:1px;width:5px;height:9px;border:2px solid #fff;border-top:none;border-left:none;transform:rotate(45deg)}
-.bcs-smtp-check-item input[type="radio"]{appearance:none;-webkit-appearance:none;width:20px;height:20px;border-radius:50%;flex-shrink:0;border:2px solid var(--bcs-smtp-border-light);background:var(--bcs-smtp-surface-2);cursor:pointer;transition:all var(--bcs-smtp-t);position:relative}
-.bcs-smtp-check-item input[type="radio"]:checked{border-color:var(--bcs-smtp-indigo);background:var(--bcs-smtp-indigo);box-shadow:inset 0 0 0 3px var(--bcs-smtp-surface-2)}
-.bcs-smtp-check-label-title{font-size:13px;color:var(--bcs-smtp-text);font-weight:500}
-.bcs-smtp-check-label-desc{font-size:11.5px;color:var(--bcs-smtp-text-3);margin-top:1px}
-
-/* =====================================================================
-   Alert
-   ===================================================================== */
-.bcs-smtp-alert{display:flex;gap:12px;padding:14px 16px;border-radius:var(--bcs-smtp-radius);margin-bottom:16px;font-size:13px;line-height:1.6}
-.bcs-smtp-alert .dashicons{flex-shrink:0;font-size:18px;width:18px;height:18px;margin-top:1px}
-.bcs-smtp-alert-content{flex:1}
-.bcs-smtp-alert-title{font-weight:600;margin-bottom:4px}
-.bcs-smtp-alert-warning{background:var(--bcs-smtp-amber-dim);border:1px solid rgba(245,158,11,.2)}
-.bcs-smtp-alert-warning .dashicons{color:var(--bcs-smtp-amber)}
-.bcs-smtp-alert-error{background:var(--bcs-smtp-rose-dim);border:1px solid rgba(244,63,94,.25)}
-.bcs-smtp-alert-error .dashicons{color:var(--bcs-smtp-rose)}
-.bcs-smtp-alert-success{background:var(--bcs-smtp-emerald-dim);border:1px solid rgba(16,185,129,.25)}
-.bcs-smtp-alert-success .dashicons{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-alert-info{background:var(--bcs-smtp-indigo-dim);border:1px solid rgba(99,102,241,.2)}
-.bcs-smtp-alert-info .dashicons{color:var(--bcs-smtp-indigo-h)}
-
-/* =====================================================================
-   Server / Config Grid
-   ===================================================================== */
-.bcs-smtp-server-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
-.bcs-smtp-server-row{display:flex;flex-direction:column;gap:3px;padding:10px 12px;background:var(--bcs-smtp-surface-2);border-radius:var(--bcs-smtp-radius-sm)}
-.bcs-smtp-server-key{font-size:11px;color:var(--bcs-smtp-text-3)}
-.bcs-smtp-server-val{font-size:12px;font-family:var(--bcs-smtp-mono);color:var(--bcs-smtp-text)}
-.bcs-smtp-server-val.good{color:var(--bcs-smtp-emerald)}
-.bcs-smtp-server-val.bad{color:var(--bcs-smtp-rose)}
-
-/* =====================================================================
-   Badge
-   ===================================================================== */
-.bcs-smtp-badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;padding:3px 10px;border-radius:100px;font-weight:500;font-family:var(--bcs-smtp-mono);white-space:nowrap}
-.bcs-smtp-badge-success{background:var(--bcs-smtp-emerald-dim);color:var(--bcs-smtp-emerald);border:1px solid rgba(16,185,129,.3)}
-.bcs-smtp-badge-error{background:var(--bcs-smtp-rose-dim);color:var(--bcs-smtp-rose);border:1px solid rgba(244,63,94,.3)}
-.bcs-smtp-badge-warning{background:var(--bcs-smtp-amber-dim);color:var(--bcs-smtp-amber);border:1px solid rgba(245,158,11,.3)}
-
-/* =====================================================================
-   Tables — test log / incidents / change log
-   ===================================================================== */
-.bcs-smtp-table-wrap{overflow-x:auto;margin-top:4px}
-.bcs-smtp-table{width:100%;border-collapse:collapse;font-size:12px}
-.bcs-smtp-table th{text-align:left;padding:8px 10px;font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--bcs-smtp-text-3);border-bottom:1px solid var(--bcs-smtp-border);white-space:nowrap}
-.bcs-smtp-table td{padding:9px 10px;border-bottom:1px solid var(--bcs-smtp-border);color:var(--bcs-smtp-text);vertical-align:middle}
-.bcs-smtp-table tr:last-child td{border-bottom:none}
-.bcs-smtp-table tr:hover td{background:var(--bcs-smtp-surface-2)}
-.bcs-smtp-table tbody tr{transition:background var(--bcs-smtp-t)}
-
-/* Skeleton loader — Email Log table while an AJAX filter request is in flight */
-@keyframes bcs-smtp-shimmer{0%{background-position:-400px 0}100%{background-position:400px 0}}
-.bcs-smtp-skel{display:inline-block;height:10px;border-radius:4px;background:linear-gradient(90deg,var(--bcs-smtp-surface-2) 25%,rgba(255,255,255,.07) 50%,var(--bcs-smtp-surface-2) 75%);background-size:800px 100%;animation:bcs-smtp-shimmer 1.4s infinite linear}
-.bcs-smtp-skeleton-row td{padding:9px 10px}
-
-/* =====================================================================
-   Misc
-   ===================================================================== */
-.bcs-smtp-divider{height:1px;background:var(--bcs-smtp-border);margin:20px 0}
-.bcs-smtp-hidden{display:none!important}
-@keyframes bcs-smtp-spin{to{transform:rotate(360deg)}}
-.bcs-smtp-spinning{animation:bcs-smtp-spin .7s linear infinite;display:inline-block}
-details summary{list-style:none}
-details summary::-webkit-details-marker{display:none}
-
-/* Tab link in alerts */
-.bcs-smtp-tab-link{color:var(--bcs-smtp-indigo-h);text-decoration:underline;cursor:pointer}
-.bcs-smtp-tab-link:hover{color:var(--bcs-smtp-indigo)}
-
-/* =====================================================================
-   Mobile-only overrides (all panels)
-   ===================================================================== */
-@media(max-width:600px){
-  /* All buttons full-width on mobile, every tab */
-  .bcs-smtp-btn{width:100%}
-
-  /* Settings — saved-password row: input full width, Change button drops to its own line */
-  #bcs-smtp-pw-display{flex-wrap:wrap}
-  #bcs-smtp-pw-display input{flex:1 1 100%!important;width:100%!important}
-
-  /* Email Log filters — date range & status dropdowns full width */
-  #bcs-smtp-log-date-range,
-  #bcs-smtp-log-status{width:100%!important;min-width:0!important}
-
-  /* Email Log pagination — Prev/Next stay on one row, left & right */
-  #bcs-smtp-log-pagination{justify-content:space-between;flex-wrap:nowrap}
-  #bcs-smtp-log-prev,
-  #bcs-smtp-log-next{width:auto!important;flex-shrink:0}
-
-  /* Email Report — 4 summary stat boxes as a 2-column (50%) grid, without overflowing the card */
-  .bcs-smtp-report-stats{grid-template-columns:repeat(2,1fr)!important}
-  .bcs-smtp-report-stats .bcs-smtp-stat{min-width:0}
-
-  /* Schedule Report — frequency select full-width */
-  #bcs-smtp-report-frequency{max-width:none!important;width:100%!important}
-}
-
-/* "Failure types detected" list — ensure bullet markers render, on every device */
-.bcs-smtp-alert-content ul{list-style:disc;list-style-position:inside;margin:6px 0 0;padding:0}
-.bcs-smtp-alert-content li{margin-bottom:4px}
+.bcs-smtp-pw-wrap .bcs-smtp-input{padding-right:44px}
+.bcs-smtp-pw-eye{position:absolute;top:50%;right:4px;transform:translateY(-50%);display:grid;place-items:center;width:34px;height:32px;background:none;border:0;border-radius:5px;cursor:pointer;color:var(--bcs-ink-3)}
+.bcs-smtp-pw-eye:hover{color:var(--bcs-ink);background:var(--bcs-field-hover)}
+.bcs-smtp-pw-saved{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:40px;padding:0 12px;border-radius:var(--bcs-r-sm);background:var(--bcs-field);border:1px dashed var(--bcs-seam-strong)}
+.bcs-smtp-pw-dots{letter-spacing:.12em;color:var(--bcs-ink-2)}
+
+.bcs-smtp-segmented{display:inline-flex;flex-wrap:wrap;padding:3px;gap:2px;background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm)}
+.bcs-smtp-segmented label{position:relative;cursor:pointer;margin:0}
+.bcs-smtp-segmented input{position:absolute;opacity:0;width:1px;height:1px;margin:0}
+.bcs-smtp-segmented span{display:flex;align-items:center;min-height:32px;padding:0 12px;border-radius:5px;font:500 13px/1 var(--bcs-font);color:var(--bcs-ink-2);white-space:nowrap;transition:background var(--bcs-t),color var(--bcs-t)}
+.bcs-smtp-segmented label:hover span{color:var(--bcs-ink)}
+.bcs-smtp-segmented input:checked + span{background:var(--bcs-brand);color:#fff;font-weight:600}
+.bcs-smtp-segmented input:focus-visible + span{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+
+.bcs-smtp-toggle-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-top:4px}
+.bcs-smtp-toggle-row + #bcs-smtp-auth-fields{margin-top:4px}
+.bcs-smtp-auth-warning{margin-top:14px}
+.bcs-smtp-toggle-row-info{min-width:0}
+.bcs-smtp-toggle-row-label{display:block;font-size:14.5px;font-weight:600;color:var(--bcs-ink);cursor:pointer}
+.bcs-smtp-toggle-row--head .bcs-smtp-toggle-row-label{font-size:17px}
+.bcs-smtp-toggle-row-desc{font-size:13.5px!important;color:var(--bcs-ink-2);margin-top:3px!important;max-width:62ch}
+.bcs-smtp-toggle{position:relative;display:inline-block;width:42px;height:24px;flex-shrink:0;margin-top:2px}
+.bcs-smtp-toggle input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:1}
+.bcs-smtp-toggle-slider{position:absolute;inset:0;border-radius:99px;background:var(--bcs-seam-strong);transition:background var(--bcs-t)}
+.bcs-smtp-toggle-slider::before{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#c5cddd;box-shadow:0 1px 2px rgba(0,0,0,.35);transition:transform var(--bcs-t),background var(--bcs-t)}
+.bcs-smtp-toggle input:checked + .bcs-smtp-toggle-slider{background:var(--bcs-brand)}
+.bcs-smtp-toggle input:checked + .bcs-smtp-toggle-slider::before{transform:translateX(18px);background:#fff}
+.bcs-smtp-toggle input:focus-visible + .bcs-smtp-toggle-slider{outline:2px solid var(--bcs-brand-ink);outline-offset:2px}
+
+.bcs-smtp-disclosure{margin-top:24px;border:1px solid var(--bcs-seam);border-radius:var(--bcs-r-sm);background:var(--bcs-bg)}
+.bcs-smtp-disclosure-head{appearance:none;width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:none;border:0;cursor:pointer;text-align:left;color:var(--bcs-ink);font-family:var(--bcs-font)}
+.bcs-smtp-disclosure-head strong{display:block;font-size:14px;font-weight:600}
+.bcs-smtp-disclosure-head .bcs-smtp-mono{display:block;color:var(--bcs-ink-3);margin-top:2px;font-size:12px}
+.bcs-smtp-disclosure-head .dashicons{color:var(--bcs-ink-3);transition:transform var(--bcs-t)}
+.bcs-smtp-disclosure.is-open .bcs-smtp-disclosure-head .dashicons{transform:rotate(180deg)}
+.bcs-smtp-disclosure-body{display:none;padding:0 16px 18px;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-disclosure.is-open .bcs-smtp-disclosure-body{display:block}
+.bcs-smtp-disclosure-body .bcs-smtp-toggle-row{margin-top:18px}
+
+
+.bcs-smtp-reveal{display:none;padding-top:6px}
+.bcs-smtp-reveal.open{display:block}
+.bcs-smtp-sentence{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:14px;color:var(--bcs-ink)}
+.bcs-smtp-sentence label{font-weight:500}
+.bcs-smtp-sentence .bcs-smtp-hint{flex-basis:100%;margin-top:0}
+
+/* Test / aside */
+.bcs-smtp-test h2{font-size:17px}
+.bcs-smtp-test > p,.bcs-smtp-aside > p{color:var(--bcs-ink-2);font-size:13.5px}
+.bcs-smtp-aside > .bcs-smtp-hint{margin-top:18px}
+
+/* =====================================================================
+   Email log
+   ===================================================================== */
+.bcs-smtp-filters{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-search{position:relative;flex:1 1 260px;min-width:200px}
+.bcs-smtp-search .dashicons{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--bcs-ink-3);font-size:18px;width:18px;height:18px;pointer-events:none}
+.bcs-smtp-wrap .bcs-smtp-search .bcs-smtp-input{padding-left:36px}
+.bcs-smtp-filters .bcs-smtp-btn{margin-left:auto}
+
+.bcs-smtp-table-wrap{overflow-x:auto}
+.bcs-smtp-table{width:100%;border-collapse:collapse;font-size:13.5px;table-layout:fixed}
+.bcs-smtp-table th{text-align:left;padding:10px 12px;font:600 11px/1.2 var(--bcs-font);letter-spacing:.09em;text-transform:uppercase;color:var(--bcs-ink-3);background:var(--bcs-bg);border-bottom:1px solid var(--bcs-seam);white-space:nowrap}
+.bcs-smtp-table td{padding:9px 12px;border-bottom:1px solid var(--bcs-seam);vertical-align:middle;color:var(--bcs-ink);overflow:hidden}
+.bcs-smtp-table th:first-child,.bcs-smtp-table td:first-child{padding-left:20px}
+.bcs-smtp-table th:last-child,.bcs-smtp-table td:last-child{padding-right:20px}
+.bcs-smtp-table tbody tr{transition:background var(--bcs-t)}
+.bcs-smtp-table tbody tr:hover td{background:rgba(255,255,255,.025)}
+.bcs-smtp-table tbody tr:last-child td{border-bottom:0}
+.bcs-smtp-col-date{width:112px;color:var(--bcs-ink-2);white-space:nowrap}
+td.bcs-smtp-col-date{font-size:12px}
+.bcs-smtp-col-to{width:28%}
+.bcs-smtp-col-status{width:128px}
+.bcs-smtp-col-more{width:84px;text-align:right}
+.bcs-smtp-table .bcs-smtp-view-btn{display:inline-flex;align-items:center;gap:2px;height:30px;padding:0 6px 0 10px;border-radius:7px;font-size:13px;font-weight:600;color:var(--bcs-ink-2);text-decoration:none;transition:color var(--bcs-t),background var(--bcs-t)}
+.bcs-smtp-view-btn .dashicons{font-size:15px;width:15px;height:15px;transition:transform var(--bcs-t)}
+.bcs-smtp-table tbody tr:hover .bcs-smtp-view-btn,.bcs-smtp-table .bcs-smtp-view-btn:focus-visible{color:var(--bcs-brand-ink);background:var(--bcs-brand-wash)}
+.bcs-smtp-view-btn:hover .dashicons{transform:translateX(2px)}
+.bcs-smtp-view-btn:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:1px}
+.bcs-smtp-table tbody tr.bcs-smtp-day-row th{padding:16px 20px 8px;font:600 12px/1.2 var(--bcs-font);letter-spacing:.02em;text-transform:none;color:var(--bcs-ink-2);background:var(--bcs-panel);border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-table tbody tr.bcs-smtp-day-row:hover th{background:var(--bcs-panel)}
+.bcs-smtp-log-error{margin-top:12px;border-radius:10px;border:1px solid rgba(251,113,133,.25);background:rgba(251,113,133,.06);overflow:hidden}
+.bcs-smtp-log-error-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px 8px 16px;border-bottom:1px solid rgba(251,113,133,.16);font-size:12px;font-weight:600;color:var(--bcs-bad)}
+.bcs-smtp-copy-btn{display:inline-flex;align-items:center;gap:5px;height:28px;padding:0 10px;border:1px solid var(--bcs-seam-strong);border-radius:7px;background:var(--bcs-panel);color:var(--bcs-ink);font:inherit;font-size:12.5px;font-weight:500;cursor:pointer}
+.bcs-smtp-copy-btn:hover{border-color:var(--bcs-ink-3)}
+.bcs-smtp-copy-btn .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-log-error pre{margin:0;padding:12px 16px;font-size:12.5px;line-height:1.6;color:var(--bcs-ink);white-space:pre-wrap;overflow-wrap:anywhere;background:none}
+.bcs-smtp-seg-count{margin-left:6px;font-weight:500;font-size:12px;opacity:.7;font-variant-numeric:tabular-nums}
+.bcs-smtp-seg-count:empty{display:none}
+.bcs-smtp-table tr[hidden]{display:none!important}
+td.bcs-smtp-col-to,td.bcs-smtp-col-from{white-space:nowrap;text-overflow:ellipsis;color:var(--bcs-ink-2);font-size:12px}
+.bcs-smtp-cell-main{display:block;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-cell-note{display:block;margin-top:4px;font-size:11.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-table-empty{text-align:center;padding:44px 20px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-table-empty strong{display:block;color:var(--bcs-ink);font-weight:600;margin-bottom:4px}
+.bcs-smtp-skel{display:block;height:10px;border-radius:4px;background:var(--bcs-field-hover);animation:bcs-skel-pulse 1.2s ease-in-out infinite}
+@keyframes bcs-skel-pulse{0%,100%{opacity:.45}50%{opacity:1}}
+
+.bcs-smtp-pager{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 20px;border-top:1px solid var(--bcs-seam);background:var(--bcs-bg)}
+.bcs-smtp-pager-size{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--bcs-ink-2)}
+.bcs-smtp-pager-nav{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--bcs-ink-2)}
+
+/* =====================================================================
+   Reports
+   ===================================================================== */
+.bcs-smtp-chart{position:relative;height:300px;margin-top:20px}
+.bcs-smtp-chart-empty{position:absolute;inset:0;display:grid;place-items:center;color:var(--bcs-ink-3)}
+
+/* Reports */
+.bcs-smtp-report-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
+.bcs-smtp-report .bcs-smtp-panel-head{align-items:flex-start;margin-bottom:16px}
+.bcs-smtp-report .bcs-smtp-panel-head h2{font-size:18px}
+.bcs-smtp-report .bcs-smtp-panel-sub{margin-top:2px!important}
+.bcs-smtp-figures--5{grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin:0 -24px 16px;border-top:1px solid var(--bcs-seam);border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-figures--5 > div{padding:12px 24px;border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-figures--5 dd{font-size:24px;margin-top:4px}
+.bcs-smtp-figures--5 > div:first-child{border-left:0}
+.bcs-smtp-figure-rate dd{color:var(--bcs-ink)}
+.bcs-smtp-ratebar{display:block;height:4px;margin-top:8px;border-radius:2px;background:color-mix(in srgb,var(--bcs-bad) 35%,var(--bcs-seam-strong));overflow:hidden}
+.bcs-smtp-ratebar span{display:block;height:100%;background:var(--bcs-ok);border-radius:2px;transition:width .5s var(--bcs-ease)}
+.bcs-smtp-linechart--lg{height:220px}
+.bcs-smtp-report .bcs-smtp-chart-empty{margin-top:-120px!important;text-align:center;color:var(--bcs-ink-3);position:relative}
+.bcs-smtp-report-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:20px;margin-top:20px;align-items:stretch}
+.bcs-smtp-report-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-highlights{margin:0;display:flex;flex-direction:column}
+.bcs-smtp-highlights > div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-highlights > div:first-child{border-top:0;padding-top:0}
+.bcs-smtp-highlights dt{display:flex;align-items:center;gap:12px;color:var(--bcs-ink-2);font-size:14px}
+.bcs-smtp-highlights dd{margin:0;font-weight:600;font-size:16px;text-align:right;white-space:nowrap}
+.bcs-smtp-highlights dd small{font-size:12.5px;font-weight:400;color:var(--bcs-ink-3);margin-left:4px}
+.bcs-smtp-highlights dd.is-bad{color:var(--bcs-bad)}
+.bcs-smtp-highlights dd.is-good{color:var(--bcs-ok)}
+.bcs-smtp-highlights dt > span{display:flex;flex-direction:column}
+.bcs-smtp-hl-sub{font-size:12px;color:var(--bcs-ink-3);margin-top:1px}
+.bcs-smtp-hl-icon{display:grid!important;place-items:center;width:32px!important;height:32px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:17px!important}
+.bcs-smtp-hl-icon--bad{background:rgba(251,113,133,.13);color:var(--bcs-bad)}
+.bcs-smtp-hl-icon--ok{background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-schedule h2{font-size:16px;margin:0}
+.bcs-smtp-schedule h2 label{cursor:pointer}
+.bcs-smtp-schedule .bcs-smtp-field{margin-top:18px}
+.bcs-smtp-field > .bcs-smtp-segmented{align-self:flex-start}
+.bcs-smtp-report-next{display:flex;align-items:center;gap:8px;margin-top:14px!important;padding:10px 12px;border-radius:var(--bcs-r-sm);background:var(--bcs-brand-wash);color:var(--bcs-ink);font-size:13.5px!important;font-weight:500}
+.bcs-smtp-report-next .dashicons{color:var(--bcs-brand-ink);font-size:17px;width:17px;height:17px}
+
+/* Recipient chips */
+.bcs-smtp-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-height:44px;padding:6px 8px;cursor:text;
+  background:var(--bcs-field);border:1px solid var(--bcs-seam-strong);border-radius:var(--bcs-r-sm);transition:border-color var(--bcs-t),box-shadow var(--bcs-t)}
+.bcs-smtp-chips:hover{border-color:#40507a}
+.bcs-smtp-chips:focus-within{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 3px rgba(141,180,255,.18)}
+.bcs-smtp-chips.is-invalid{border-color:var(--bcs-bad);box-shadow:0 0 0 3px rgba(251,113,133,.18)}
+.bcs-smtp-chip-list{display:contents;list-style:none;margin:0;padding:0}
+.bcs-smtp-chip{display:inline-flex;align-items:center;gap:2px;max-width:100%;height:28px;margin:0;padding:0 2px 0 10px;border-radius:99px;
+  background:var(--bcs-brand-wash);border:1px solid rgba(141,180,255,.28);color:var(--bcs-ink);font-size:13px;line-height:1}
+.bcs-smtp-chip-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-chip.is-invalid{background:rgba(251,113,133,.12);border-color:rgba(251,113,133,.45);color:var(--bcs-bad)}
+.bcs-smtp-chip.is-armed{border-color:var(--bcs-brand-ink);box-shadow:0 0 0 2px rgba(141,180,255,.35)}
+.bcs-smtp-chip-x{appearance:none;display:grid;place-items:center;width:22px;height:22px;padding:0;border:0;border-radius:50%;background:none;color:var(--bcs-ink-3);cursor:pointer;flex-shrink:0}
+.bcs-smtp-chip-x:hover{background:rgba(255,255,255,.1);color:var(--bcs-ink)}
+.bcs-smtp-chip-x .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-wrap .bcs-smtp-chips-input{flex:1 1 160px;min-width:120px;height:30px;margin:0;padding:0 4px;border:0;background:none;box-shadow:none;outline:none;color:var(--bcs-ink);font:400 14px/1.4 var(--bcs-font)}
+.bcs-smtp-wrap .bcs-smtp-chips-input:focus{box-shadow:none;outline:none}
+.bcs-smtp-wrap .bcs-smtp-chips-input::placeholder{color:#6f7c97}
+
+
+/* Alerts — channel picker, webhook, health checks */
+.bcs-smtp-alerts-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:20px;margin-top:20px;align-items:stretch}
+.bcs-smtp-alerts-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-alerts-grid{margin-top:0}
+.bcs-smtp-health-side{padding:22px;position:sticky;top:52px}
+.bcs-smtp-health-head{display:flex;gap:14px;align-items:flex-start}
+.bcs-smtp-health-icon{display:grid!important;place-items:center;width:42px!important;height:42px!important;flex-shrink:0;border-radius:11px;background:rgba(52,211,153,.13);color:var(--bcs-ok);font-size:20px!important}
+.bcs-smtp-health-head h2{margin:0 0 4px;font-size:16px;line-height:1.3}
+.bcs-smtp-health-head p{font-size:13px!important;line-height:1.5;color:var(--bcs-ink-2)}
+.bcs-smtp-health-times{display:grid;grid-template-columns:1fr 1fr;margin:18px 0 0;border:1px solid var(--bcs-seam);border-radius:10px;background:var(--bcs-field)}
+.bcs-smtp-health-times > div{padding:12px 14px}
+.bcs-smtp-health-times > div + div{border-left:1px solid var(--bcs-seam)}
+.bcs-smtp-health-times dt{font-size:12px;color:var(--bcs-ink-3);margin-bottom:4px}
+.bcs-smtp-health-times dd{margin:0;font-size:14px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-health-pending{margin-top:16px!important;padding:12px 14px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-health-rules{list-style:none;margin:18px 0 0;padding:18px 0 0;border-top:1px solid var(--bcs-seam);display:flex;flex-direction:column;gap:12px}
+.bcs-smtp-health-rules li{display:flex;align-items:center;gap:10px;margin:0;font-size:13.5px;color:var(--bcs-ink)}
+.bcs-smtp-health-rules .dashicons{display:grid;place-items:center;width:28px;height:28px;flex-shrink:0;border-radius:8px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:15px}
+.bcs-smtp-webhook{margin-top:20px}
+.bcs-smtp-webhook-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
+.bcs-smtp-webhook-guide{display:inline-flex;align-items:center;gap:3px;font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap}
+.bcs-smtp-webhook-guide .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-webhook-guide:hover{text-decoration:underline}
+.bcs-smtp-webhook input[aria-invalid="true"]{border-color:var(--bcs-bad)}
+.bcs-smtp-webhook-err{margin-top:8px!important;font-size:13px!important;color:var(--bcs-bad)}
+.bcs-smtp-alerts-off{display:flex;gap:12px;align-items:flex-start;margin:18px 0 24px;padding:14px 16px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-alerts-off[hidden]{display:none}
+.bcs-smtp-alerts-off .dashicons{color:var(--bcs-warn);font-size:18px;width:18px;height:18px;margin-top:1px}
+.bcs-smtp-alerts-off p{font-size:13.5px;color:var(--bcs-ink-2)}
+.bcs-smtp-unsaved{margin-left:auto;display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--bcs-warn)}
+.bcs-smtp-unsaved::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
+.bcs-smtp-unsaved[hidden]{display:none}
+.bcs-smtp-field-aside{font-weight:400;color:var(--bcs-ink-3);margin-left:6px}
+.bcs-smtp-webhook-how{margin-top:10px!important;font-size:13px!important;color:var(--bcs-ink-3);line-height:1.5}
+
+.bcs-smtp-alerts-card{display:flex;flex-direction:column}
+.bcs-smtp-card-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--bcs-seam)}
+
+
+
+/* Full email view */
+.bcs-smtp-back{display:inline-flex;align-items:center;gap:4px;margin:6px 0 18px;font-size:13.5px;font-weight:600;color:var(--bcs-ink-2);text-decoration:none}
+.bcs-smtp-back:hover,.bcs-smtp-back:focus{color:var(--bcs-ink)}
+.bcs-smtp-back .dashicons{font-size:16px;width:16px;height:16px}
+.bcs-smtp-mailview [hidden]{display:none!important}
+.bcs-smtp-mailview-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
+.bcs-smtp-mailview-title{min-width:0;flex:1 1 420px}
+.bcs-smtp-mailview-when{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px!important;font-size:13px;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview h1{margin:0;padding:0;font-size:24px;line-height:1.3;font-weight:600;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-mailview-nav{display:flex;gap:8px}
+.bcs-smtp-mailview-nav .dashicons{font-size:15px;width:15px;height:15px}
+.bcs-smtp-mailview-nav .is-disabled{opacity:.4;pointer-events:none}
+.bcs-smtp-mailview-error{margin:0 0 20px}
+.bcs-smtp-mailview-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
+.bcs-smtp-mailview-grid > .bcs-smtp-panel + .bcs-smtp-panel{margin-top:0}
+.bcs-smtp-mailview-message .bcs-smtp-panel-head h2,.bcs-smtp-mailview-meta h2{margin:0;font-size:16px}
+.bcs-smtp-mailframe-wrap{border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--bcs-seam)}
+.bcs-smtp-mailframe{display:block;width:100%;height:480px;border:0;background:#fff;overflow:hidden}
+.bcs-smtp-mailview-source{border-radius:10px;border:1px solid var(--bcs-seam);background:var(--bcs-bg);overflow:hidden}
+.bcs-smtp-mailview-source-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px 8px 16px;border-bottom:1px solid var(--bcs-seam);font-size:12px;font-weight:600;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-source pre,.bcs-smtp-mailview-text{margin:0;padding:16px;font-size:12.5px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--bcs-ink);max-height:70vh;overflow:auto;background:none}
+.bcs-smtp-mailview-text{border-radius:10px;border:1px solid var(--bcs-seam);background:var(--bcs-bg);font-family:var(--bcs-mono)}
+.bcs-smtp-mailview-empty{display:flex;flex-direction:column;align-items:center;gap:8px;padding:48px 24px;text-align:center;border-radius:10px;border:1px dashed var(--bcs-seam-strong)}
+.bcs-smtp-mailview-empty .dashicons{font-size:28px;width:28px;height:28px;color:var(--bcs-ink-3)}
+.bcs-smtp-mailview-empty strong{font-size:15px;color:var(--bcs-ink)}
+.bcs-smtp-mailview-empty p{max-width:46ch;font-size:13.5px;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-meta{padding:20px 22px}
+.bcs-smtp-mailview-meta h2{margin-bottom:14px}
+.bcs-smtp-mailview-facts{display:flex;flex-direction:column;margin:0}
+.bcs-smtp-mailview-facts > div{padding:10px 0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-facts > div:first-child{padding-top:0;border-top:0}
+.bcs-smtp-mailview-facts dt{margin-bottom:3px;font-size:11.5px;color:var(--bcs-ink-3)}
+.bcs-smtp-mailview-facts dd{margin:0;font-size:13px;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-mailview-meta h3{margin:18px 0 8px;font-size:13px;color:var(--bcs-ink)}
+.bcs-smtp-mailview-atts{display:flex;flex-direction:column;gap:6px;margin:0 0 8px;padding:0;list-style:none}
+.bcs-smtp-mailview-atts li{display:flex;align-items:center;gap:8px;margin:0;padding:8px 10px;border-radius:8px;background:var(--bcs-field);border:1px solid var(--bcs-seam);font-size:13px;overflow-wrap:anywhere}
+.bcs-smtp-mailview-atts .dashicons{color:var(--bcs-ink-3);font-size:16px;width:16px;height:16px;flex-shrink:0}
+.bcs-smtp-mailview-headers{margin-top:18px;padding-top:14px;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-headers summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-mailview-headers pre{margin:10px 0 0;padding:12px;border-radius:8px;background:var(--bcs-bg);border:1px solid var(--bcs-seam);font-size:12px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-missing{padding:48px 24px;text-align:center}
+.bcs-smtp-mailview-missing p{margin-top:8px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-mailview-message{padding:0;overflow:hidden}
+.bcs-smtp-envelope{display:flex;gap:14px;align-items:flex-start;padding:20px 24px;border-bottom:1px solid var(--bcs-seam)}
+.bcs-smtp-envelope-avatar{display:grid;place-items:center;width:42px;height:42px;flex-shrink:0;border-radius:50%;background:var(--bcs-brand);color:#fff;font-size:17px;font-weight:600}
+.bcs-smtp-envelope-lines{min-width:0;flex:1}
+.bcs-smtp-envelope-from{font-size:14.5px!important;color:var(--bcs-ink);overflow-wrap:anywhere}
+.bcs-smtp-envelope-from strong{font-weight:600;margin-right:6px}
+.bcs-smtp-envelope-from span{color:var(--bcs-ink-3);font-size:13px}
+.bcs-smtp-envelope-to{margin-top:3px!important;font-size:13px!important;color:var(--bcs-ink-2);overflow-wrap:anywhere}
+.bcs-smtp-envelope-to span{color:var(--bcs-ink-3);margin-right:4px}
+.bcs-smtp-mailview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 24px;border-bottom:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-device-icon{display:block;width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
+.bcs-smtp-mailview-body{padding:20px 24px 24px}
+.bcs-smtp-mailframe-stage{border-radius:10px;background:var(--bcs-bg);border:1px solid var(--bcs-seam);padding:0;transition:padding var(--bcs-t)}
+.bcs-smtp-mailframe-stage.is-mobile{padding:20px 0}
+.bcs-smtp-mailframe-stage .bcs-smtp-mailframe-wrap{margin:0 auto;border:0;border-radius:10px;transition:max-width var(--bcs-t)}
+.bcs-smtp-mailframe-stage.is-mobile .bcs-smtp-mailframe-wrap{max-width:390px;border-radius:18px;box-shadow:0 0 0 6px var(--bcs-panel),0 0 0 7px var(--bcs-seam-strong)}
+.bcs-smtp-mailview-plain pre{font-family:var(--bcs-font);font-size:13.5px;line-height:1.65}
+.bcs-smtp-mailview-meta{position:sticky;top:52px}
+.bcs-smtp-mailview-verdict{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:16px;padding:12px 14px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-mailview-verdict p{font-size:13px!important;color:var(--bcs-ink-2);line-height:1.5}
+.bcs-smtp-mailview-note{margin-top:4px!important;font-size:12px!important;color:var(--bcs-ink-3)!important}
+@media (max-width:1100px){
+  .bcs-smtp-mailview-meta{position:static}
+}
+@media (max-width:600px){
+  .bcs-smtp-wrap .bcs-smtp-mailview-message{padding:0}
+  .bcs-smtp-envelope,.bcs-smtp-mailview-toolbar,.bcs-smtp-mailview-body{padding-left:16px;padding-right:16px}
+}
+@media (max-width:1100px){
+  .bcs-smtp-mailview-grid{grid-template-columns:minmax(0,1fr)}
+}
+@media (max-width:600px){
+  .bcs-smtp-mailview h1{font-size:20px}
+  .bcs-smtp-mailview-nav{width:100%}
+  .bcs-smtp-mailview-nav > *{flex:1;justify-content:center}
+}
+
+/* =====================================================================
+   Messages
+   ===================================================================== */
+.bcs-smtp-msg:empty{display:none}
+.bcs-smtp-msg{margin-top:14px}
+.bcs-smtp-alert{--tone:var(--bcs-brand-ink);display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:var(--bcs-r-sm);border:1px solid color-mix(in srgb,var(--tone) 35%,transparent);background:color-mix(in srgb,var(--tone) 9%,var(--bcs-panel));font-size:13.5px;line-height:1.5;color:var(--bcs-ink)}
+.bcs-smtp-alert .dashicons{color:var(--tone);flex-shrink:0;font-size:18px;width:18px;height:18px;margin-top:1px}
+.bcs-smtp-alert-content{min-width:0;overflow-wrap:anywhere}
+.bcs-smtp-alert-content strong{font-weight:600}
+.bcs-smtp-alert-success{--tone:var(--bcs-sent)}
+.bcs-smtp-alert-error{--tone:var(--bcs-back)}
+.bcs-smtp-alert-warning{--tone:var(--bcs-held)}
+.bcs-smtp-alert .is-good{color:var(--bcs-sent)}
+.bcs-smtp-alert .is-bad{color:var(--bcs-back)}
+
+.bcs-smtp-toast{position:fixed;right:24px;bottom:24px;z-index:100000;max-width:min(420px,calc(100vw - 32px));pointer-events:none}
+.bcs-smtp-toast .bcs-smtp-alert{pointer-events:auto;box-shadow:0 12px 32px rgba(0,0,0,.45),0 2px 6px rgba(0,0,0,.3);animation:bcs-panel-in .22s var(--bcs-ease)}
+
+/* =====================================================================
+   Responsive
+   ===================================================================== */
+@media (max-width:1200px){
+  .bcs-smtp-col-from{display:none}
+  .bcs-smtp-hero-facts{grid-template-columns:repeat(3,minmax(0,1fr))}
+  .bcs-smtp-hero-facts > div:nth-child(4){border-left:0}
+  .bcs-smtp-hero-facts > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+}
+@media (max-width:1100px){
+  .bcs-smtp-overview-grid,.bcs-smtp-split,.bcs-smtp-alerts-grid{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-split > .bcs-smtp-test,.bcs-smtp-health-side{position:static}
+}
+@media (max-width:900px){
+  .bcs-smtp-hero-main{grid-template-columns:auto minmax(0,1fr)}
+  .bcs-smtp-hero-actions{grid-column:1/-1;justify-content:flex-start}
+  .bcs-smtp-figures{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}
+  .bcs-smtp-figures--5{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:0}
+  .bcs-smtp-figures--5 > div:nth-child(4){border-left:0}
+  .bcs-smtp-figures--5 > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-report-grid{grid-template-columns:minmax(0,1fr)}
+}
+@media (max-width:782px){
+  .bcs-smtp-wrap{padding:16px 12px 40px 0;font-size:15px}
+  .bcs-smtp-header h1{font-size:19px}
+  .bcs-smtp-header-actions{width:100%}
+  .bcs-smtp-header-actions .bcs-smtp-btn{flex:1}
+  .bcs-smtp-tabs{width:100%;gap:2px;padding:4px}
+  .bcs-smtp-tab{height:36px;padding:0 11px;font-size:13.5px}
+  .bcs-smtp-tab .dashicons{font-size:16px;width:16px;height:16px}
+  .bcs-smtp-panel{padding:18px}
+  .bcs-smtp-panel--flush{padding:0}
+  .bcs-smtp-hero{padding:20px 18px 0}
+  .bcs-smtp-hero-main{gap:14px 16px;padding-bottom:20px}
+  .bcs-smtp-hero-copy h2{font-size:21px}
+  .bcs-smtp-beacon{width:42px;height:42px}
+  .bcs-smtp-beacon span{width:13px;height:13px}
+  .bcs-smtp-hero-actions .bcs-smtp-btn{flex:1 1 auto}
+  .bcs-smtp-hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));margin:0 -18px}
+  .bcs-smtp-hero-facts > div{padding:12px 18px;border-left:0;border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:nth-child(-n+2){border-top:0}
+  .bcs-smtp-hero-facts > div:nth-child(even){border-left:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:nth-child(n+4){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-hero-facts > div:last-child:nth-child(odd){grid-column:1/-1}
+  .bcs-smtp-hero-facts dd{white-space:normal;overflow-wrap:anywhere}
+  .bcs-smtp-linechart{height:200px}
+  .bcs-smtp-linechart--lg{height:190px}
+  .bcs-smtp-figures--5{grid-template-columns:repeat(2,minmax(0,1fr));margin:0 -18px 20px}
+  .bcs-smtp-figures--5 > div{padding:14px 18px}
+  .bcs-smtp-figures--5 > div:nth-child(odd){border-left:0}
+  .bcs-smtp-figures--5 > div:nth-child(4){border-left:1px solid var(--bcs-seam)}
+  .bcs-smtp-figures--5 > div:nth-child(n+3){border-top:1px solid var(--bcs-seam)}
+  .bcs-smtp-figures--5 > div:last-child{grid-column:1/-1;border-left:0}
+  .bcs-smtp-report-tools{width:100%}
+  .bcs-smtp-report-tools .bcs-smtp-segmented{width:100%}
+  .bcs-smtp-activity-foot{margin:16px -18px -18px!important;padding:14px 18px}
+  .bcs-smtp-field-row,.bcs-smtp-field-row:has(.bcs-smtp-field--port),.bcs-smtp-field-row:has(> .bcs-smtp-field--grow:first-child):not(:has(.bcs-smtp-field--port)){grid-template-columns:minmax(0,1fr);gap:0}
+  .bcs-smtp-provider-grid,.bcs-smtp-provider-grid--compact{grid-template-columns:repeat(2,minmax(0,1fr))}
+  .bcs-smtp-wrap .bcs-smtp-input{min-height:44px;height:44px;font-size:16px}
+  .bcs-smtp-btn{min-height:44px}
+  .bcs-smtp-btn-sm{min-height:36px}
+  .bcs-smtp-facts{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-facts > div:nth-child(odd){padding-right:0}
+  .bcs-smtp-filters{padding:14px}
+  .bcs-smtp-filters .bcs-smtp-btn{margin-left:0}
+  .bcs-smtp-filters .bcs-smtp-select{flex:1 1 140px}
+  .bcs-smtp-segmented{width:100%}
+  .bcs-smtp-segmented label{flex:1}
+  .bcs-smtp-segmented span{justify-content:center;padding:0 8px}
+
+  /* Email log becomes stacked rows */
+  .bcs-smtp-table{table-layout:auto}
+  .bcs-smtp-table thead{display:none}
+  .bcs-smtp-table tbody tr{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:4px 8px;padding:12px 14px;border-bottom:1px solid var(--bcs-seam)}
+  .bcs-smtp-table tbody tr:last-child{border-bottom:0}
+  .bcs-smtp-table td{display:block;padding:0!important;border:0;width:auto!important;text-align:left}
+  .bcs-smtp-table td.bcs-smtp-col-date{grid-column:1;grid-row:1}
+  .bcs-smtp-table td.bcs-smtp-col-status{grid-column:2;grid-row:1;justify-self:end}
+  .bcs-smtp-table td.bcs-smtp-col-more{grid-column:3;grid-row:1;align-self:center}
+  .bcs-smtp-table .bcs-smtp-view-btn{height:26px;padding:0 2px 0 6px}
+  .bcs-smtp-table tbody tr.bcs-smtp-day-row{display:block;padding:0}
+  .bcs-smtp-table tbody tr.bcs-smtp-day-row th{display:block;padding:14px 14px 8px}
+  .bcs-smtp-table td.bcs-smtp-col-subject{grid-column:1/-1}
+  .bcs-smtp-table td.bcs-smtp-col-to{grid-column:1/-1}
+  .bcs-smtp-table td.bcs-smtp-table-empty{grid-column:1/-1;text-align:center}
+  .bcs-smtp-pager{padding:12px 14px}
+  .bcs-smtp-pager-nav{width:100%;justify-content:space-between}
+  .bcs-smtp-toast{left:16px;right:16px;bottom:16px}
+}
+@media (max-width:480px){
+  .bcs-smtp-figures dd{font-size:24px}
+}
+
+/* Tablet: five-item rows fill as 3 + 2 (two halves) instead of leaving an empty cell. */
+@media (min-width:783px) and (max-width:1200px){
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child){grid-template-columns:repeat(6,minmax(0,1fr))}
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child) > div:nth-child(-n+3){grid-column:span 2}
+  .bcs-smtp-hero-facts:has(> div:nth-child(5):last-child) > div:nth-child(n+4){grid-column:span 3}
+}
+@media (min-width:783px) and (max-width:900px){
+  .bcs-smtp-figures--5{grid-template-columns:repeat(6,minmax(0,1fr))}
+  .bcs-smtp-figures--5 > div:nth-child(-n+3){grid-column:span 2}
+  .bcs-smtp-figures--5 > div:nth-child(n+4){grid-column:span 3}
+}
+/* Tablet: the four activity numbers fit on one row; the two side cards sit side by side. */
+@media (min-width:601px) and (max-width:900px){
+  .bcs-smtp-figures:not(.bcs-smtp-figures--5){grid-template-columns:repeat(4,minmax(0,1fr))}
+}
+@media (min-width:601px) and (max-width:1100px){
+  .bcs-smtp-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch}
+  .bcs-smtp-side > :only-child{grid-column:1/-1}
+}
+/* Tablet email log: the recipient moves under the subject so subjects get the room. */
+.bcs-smtp-cell-to{display:none}
+@media (min-width:783px) and (max-width:1100px){
+  /* Collapsed, not display:none: the day rows span five columns, so all five must still exist. */
+  .bcs-smtp-table .bcs-smtp-col-to{width:0!important;padding:0!important;font-size:0;border-left:0;border-right:0;overflow:hidden}
+  .bcs-smtp-cell-to{display:block;margin-top:3px;font-size:12px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+}
+/* Phone: one fact per line, label left and value right, so values don't break mid-word;
+   and no desktop/mobile preview switch on a screen that is already phone-sized. */
+@media (max-width:600px){
+  .bcs-smtp-hero-facts{grid-template-columns:minmax(0,1fr)}
+  .bcs-smtp-hero-facts > div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;grid-column:auto!important;border-left:0!important;border-top:1px solid var(--bcs-seam)!important}
+  .bcs-smtp-hero-facts > div:first-child{border-top:0!important}
+  .bcs-smtp-hero-facts dt{margin:0;flex-shrink:0}
+  .bcs-smtp-hero-facts dd{text-align:right;min-width:0}
+  .bcs-smtp-device{display:none!important}
+}
+
+@media (prefers-reduced-motion:reduce){
+  .bcs-smtp-tab-pill{transition:none}
+  .bcs-smtp-wrap *,.bcs-smtp-wrap *::after,.bcs-smtp-toast *{animation:none!important;transition:none!important}
+}
+.bcs-smtp-log-retention{margin-bottom:16px}
+.bcs-smtp-log-retention a{margin-left:6px;font-weight:600}
+
+/* Failure alerts card — header and channel list */
+.bcs-smtp-alerts-card{padding:0;overflow:hidden}
+.bcs-smtp-alerts-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:22px 24px}
+.bcs-smtp-alerts-badge{display:grid!important;place-items:center;width:42px!important;height:42px!important;border-radius:11px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:20px!important}
+.bcs-smtp-alerts-intro h2{margin:0 0 3px;font-size:16px;line-height:1.3}
+.bcs-smtp-alerts-intro h2 label{cursor:pointer}
+.bcs-smtp-alerts-intro p{font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-alerts-card .bcs-smtp-reveal{padding:0 24px}
+.bcs-smtp-ch-list-head{display:flex;align-items:center;justify-content:space-between;padding:14px 0 10px;border-top:1px solid var(--bcs-seam);font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--bcs-ink-3)}
+.bcs-smtp-ch-count{font-weight:500;letter-spacing:0;text-transform:none;font-size:12.5px}
+.bcs-smtp-ch-list{list-style:none;margin:0 0 20px;padding:0;border:1px solid var(--bcs-seam);border-radius:12px;overflow:hidden;background:var(--bcs-bg)}
+.bcs-smtp-ch{margin:0;border-top:1px solid var(--bcs-seam)}
+.bcs-smtp-ch:first-child{border-top:0}
+.bcs-smtp-ch-row{display:flex;align-items:center;gap:12px;padding-right:16px;transition:background var(--bcs-t)}
+.bcs-smtp-ch-row:hover{background:rgba(255,255,255,.02)}
+.bcs-smtp-ch.is-open .bcs-smtp-ch-row{background:var(--bcs-field)}
+.bcs-smtp-ch-main{flex:1;min-width:0;display:flex;align-items:center;gap:12px;padding:12px 4px 12px 16px;border:0;background:none;color:inherit;font:inherit;text-align:left;cursor:pointer}
+.bcs-smtp-ch-main:focus-visible{outline:2px solid var(--bcs-brand-ink);outline-offset:-2px;border-radius:10px}
+.bcs-smtp-ch-icon{display:grid!important;place-items:center;width:34px!important;height:34px!important;flex-shrink:0;border-radius:9px;background:var(--bcs-panel);border:1px solid var(--bcs-seam-strong);color:var(--bcs-ink-3);font-size:17px!important;transition:all var(--bcs-t)}
+.bcs-smtp-ch:not([data-state="off"]) .bcs-smtp-ch-icon{background:var(--bcs-brand);border-color:var(--bcs-brand);color:#fff}
+.bcs-smtp-ch-text{min-width:0;flex:1;display:flex;flex-direction:column;gap:1px}
+.bcs-smtp-ch-name{font-size:14px;font-weight:600;color:var(--bcs-ink)}
+.bcs-smtp-ch-sub{font-size:12.5px;color:var(--bcs-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-ch-pill{flex-shrink:0;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:600;line-height:1.4;color:var(--bcs-ink-3);background:var(--bcs-field);border:1px solid var(--bcs-seam)}
+.bcs-smtp-ch[data-state="ready"] .bcs-smtp-ch-pill{color:var(--bcs-ok);background:rgba(52,211,153,.1);border-color:rgba(52,211,153,.28)}
+.bcs-smtp-ch[data-state="missing"] .bcs-smtp-ch-pill{color:var(--bcs-warn);background:rgba(251,191,36,.1);border-color:rgba(251,191,36,.28)}
+.bcs-smtp-ch[data-state="bad"] .bcs-smtp-ch-pill{color:var(--bcs-bad);background:rgba(251,113,133,.1);border-color:rgba(251,113,133,.3)}
+.bcs-smtp-ch-chevron{flex-shrink:0;color:var(--bcs-ink-3);font-size:16px!important;width:16px!important;height:16px!important;transition:transform var(--bcs-t),opacity var(--bcs-t)}
+.bcs-smtp-ch[data-state="off"] .bcs-smtp-ch-chevron{opacity:0}
+.bcs-smtp-ch.is-open .bcs-smtp-ch-chevron{transform:rotate(180deg)}
+.bcs-smtp-ch .bcs-smtp-webhook{margin:0;padding:4px 16px 16px 62px;background:var(--bcs-field)}
+.bcs-smtp-ch .bcs-smtp-webhook .bcs-smtp-field-label{font-size:12.5px}
+.bcs-smtp-alerts-card .bcs-smtp-alerts-off{margin:0 24px 20px}
+.bcs-smtp-alerts-card .bcs-smtp-card-foot{margin:auto 0 0;padding:16px 24px;border-top:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-alerts-card .bcs-smtp-msg{margin:0 24px 16px}
+@media (max-width:600px){
+  .bcs-smtp-alerts-head{padding:18px}
+  .bcs-smtp-alerts-card .bcs-smtp-reveal{padding:0 18px}
+  .bcs-smtp-ch-sub{display:none}
+  .bcs-smtp-ch .bcs-smtp-webhook{padding:4px 14px 14px}
+  .bcs-smtp-alerts-card .bcs-smtp-card-foot{padding:14px 18px}
+  .bcs-smtp-alerts-card .bcs-smtp-alerts-off,.bcs-smtp-alerts-card .bcs-smtp-msg{margin-left:18px;margin-right:18px}
+}
+
+/* Connection — header, labelled rows, provider chips, footer */
+.bcs-smtp-setup{padding:0;overflow:hidden;display:flex;flex-direction:column}
+.bcs-smtp-setup-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:22px 24px}
+.bcs-smtp-setup-badge,.bcs-smtp-test-badge{display:grid!important;place-items:center;width:42px!important;height:42px!important;border-radius:11px;background:var(--bcs-brand-wash);color:var(--bcs-brand-ink);font-size:20px!important}
+.bcs-smtp-setup-head h2{margin:0 0 3px;font-size:16px;line-height:1.3}
+.bcs-smtp-setup-head h2 label{cursor:pointer}
+.bcs-smtp-setup-head p{font-size:13px!important;color:var(--bcs-ink-2)}
+.bcs-smtp-provider-chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(138px,1fr));gap:6px}
+.bcs-smtp-provider-chips .bcs-smtp-provider{min-height:40px;padding:6px 10px;gap:9px;border-radius:9px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-mark{width:24px;height:24px;border-radius:6px;font-size:10px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-mark .dashicons{font-size:14px;width:14px;height:14px}
+.bcs-smtp-provider-chips .bcs-smtp-provider-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-inline-switch{display:flex;align-items:flex-start;gap:10px;margin:14px 0 0;font-size:13.5px;color:var(--bcs-ink);cursor:pointer;line-height:1.45}
+.bcs-smtp-toggle--sm{width:34px;height:20px;margin-top:1px}
+.bcs-smtp-toggle--sm .bcs-smtp-toggle-slider::before{width:14px;height:14px}
+.bcs-smtp-toggle--sm input:checked + .bcs-smtp-toggle-slider::before{transform:translateX(14px)}
+.bcs-smtp-setup-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:auto;padding:16px 24px;border-top:1px solid var(--bcs-seam);background:rgba(0,0,0,.14)}
+.bcs-smtp-setup-foot .bcs-smtp-msg{flex-basis:100%;margin-top:0}
+.bcs-smtp-test-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:6px}
+.bcs-smtp-test .bcs-smtp-test-badge{flex-shrink:0;background:rgba(52,211,153,.13);color:var(--bcs-ok)}
+.bcs-smtp-test-head h2{margin:0 0 3px;font-size:16px}
+.bcs-smtp-test-head p{font-size:13px!important;color:var(--bcs-ink-2);line-height:1.5}
+@media (max-width:782px){
+  .bcs-smtp-setup-head{padding:18px}
+  .bcs-smtp-setup-body{padding:4px 18px 20px}
+  .bcs-smtp-setup-body .bcs-smtp-field-row .bcs-smtp-field + .bcs-smtp-field{margin-top:14px!important}
+  .bcs-smtp-setup-foot{padding:14px 18px}
+  .bcs-smtp-setup-foot .bcs-smtp-btn{flex:1 1 100%}
+  .bcs-smtp-provider-chips{grid-template-columns:repeat(2,minmax(0,1fr))}
+}
+
+/* Connection — one compact column */
+.bcs-smtp-setup-body{display:flex;flex-direction:column;gap:20px;padding:4px 24px 24px}
+.bcs-smtp-setup-body .bcs-smtp-field,.bcs-smtp-setup-body .bcs-smtp-field-row .bcs-smtp-field{margin-top:0}
+.bcs-smtp-setup-body .bcs-smtp-field-row{gap:14px}
+.bcs-smtp-setup-body .bcs-smtp-field-label{margin-bottom:7px}
+.bcs-smtp-setup-body .bcs-smtp-provider-chips{grid-template-columns:repeat(auto-fill,minmax(118px,1fr))}
+.bcs-smtp-setup-body .bcs-smtp-provider-note{margin-top:8px!important;padding:0;background:none;border:0;font-size:12.5px!important;color:var(--bcs-ink-3)}
+.bcs-smtp-setup-body .bcs-smtp-provider-note .dashicons{font-size:15px;width:15px;height:15px;margin-top:1px}
+.bcs-smtp-setup-body .bcs-smtp-auth-warning{margin:0}
+.bcs-smtp-setup-body .bcs-smtp-disclosure{margin:0}
+.bcs-smtp-setup-body .bcs-smtp-disclosure-body .bcs-smtp-field{margin-top:14px}
+.bcs-smtp-setup-body .bcs-smtp-disclosure-body .bcs-smtp-field-row .bcs-smtp-field{margin-top:0}
+#bcs-smtp-pw-status:empty,#bcs-smtp-pw-status.is-good{display:none}
+.bcs-smtp-setup-head{border-bottom:0}
+.bcs-smtp-setup-body .bcs-smtp-auth-switch{margin:0 0 -6px}
+.bcs-smtp-provider-picked{display:flex;align-items:center;gap:11px;min-height:44px;padding:7px 14px 7px 9px;border-radius:10px;background:var(--bcs-field);border:1px solid var(--bcs-seam-strong)}
+.bcs-smtp-provider-picked[hidden]{display:none}
+.bcs-smtp-provider-picked .bcs-smtp-provider-mark{width:28px;height:28px;border-radius:7px;font-size:10.5px;background:var(--tone);border-color:var(--tone);color:#fff}
+.bcs-smtp-picked-name{flex:1;min-width:0;font-size:14px;font-weight:600;color:var(--bcs-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bcs-smtp-provider-picked .bcs-smtp-link{font-weight:600}
+.bcs-smtp-setup .bcs-smtp-smtp-off{margin:0 24px 24px}
+.bcs-smtp-setup .bcs-smtp-smtp-off .dashicons{color:var(--bcs-warn)}
+.bcs-smtp-setup-body[hidden]{display:none}

bcs-smtp-manager/trunk/assets/js/admin.js

@@ -1 @@
-/* global bcsSmtpData, jQuery, Chart */
+/* global bcsSmtpData, jQuery */
 ( function ( $ ) {
 'use strict';
 
-/* Always dark mode */
-document.documentElement.setAttribute( 'data-bcs-smtp-theme', 'dark' );
+var i18n = ( bcsSmtpData && bcsSmtpData.i18n ) || {};
+var T = function ( key, fallback ) { return i18n[ key ] || fallback || ''; };
+
+/* Minimal sprintf for %s / %1$s placeholders in translated strings. */
+function fmt( str ) {
+        var args = Array.prototype.slice.call( arguments, 1 );
+        var i = 0;
+        return String( str ).replace( /%(\d+)\$s|%s/g, function ( m, n ) {
+                return n ? args[ n - 1 ] : args[ i++ ];
+        } );
+}
+
+/* Storage can throw in private windows or with blocked site data. */
+var store = {
+        get: function ( k ) { try { return window.localStorage.getItem( k ); } catch ( e ) { return null; } },
+        set: function ( k, v ) { try { window.localStorage.setItem( k, v ); } catch ( e ) {} }
+};
 
 /* =====================================================================
-   Tab Navigation — with persistence
+   Busy-state + message helpers
    ===================================================================== */
-var TAB_KEY = 'bcs_smtp_active_tab';
-
-function getStoredTab() { return localStorage.getItem( TAB_KEY ) || 'settings'; }
-
-/* Scroll the tab bar so $tab's left edge aligns with the container's left edge —
-   keeps the active tab pinned to the start instead of wherever it happened to land. */
-function scrollTabIntoViewLeft( $tab, $container ) {
-        if ( ! $tab.length || ! $container.length ) { return; }
-        var containerEl = $container[ 0 ];
-        var delta = $tab[ 0 ].getBoundingClientRect().left - containerEl.getBoundingClientRect().left;
-        containerEl.scrollLeft += delta;
-}
-
-function setActiveTab( panel ) {
-        localStorage.setItem( TAB_KEY, panel );
-        $( '.bcs-smtp-tab' ).removeClass( 'active' );
-        var $activeTab = $( '.bcs-smtp-tab[data-panel="' + panel + '"]' ).addClass( 'active' );
-        scrollTabIntoViewLeft( $activeTab, $( '.bcs-smtp-tabs' ) );
+function setBusy( $btn, label ) {
+        if ( ! $btn.data( 'bcsLabel' ) ) { $btn.data( 'bcsLabel', $btn.html() ); }
+        $btn.prop( 'disabled', true ).addClass( 'is-busy' ).attr( 'aria-busy', 'true' ).text( label );
+}
+function clearBusy( $btn ) {
+        $btn.prop( 'disabled', false ).removeClass( 'is-busy' ).removeAttr( 'aria-busy' );
+        if ( $btn.data( 'bcsLabel' ) ) { $btn.html( $btn.data( 'bcsLabel' ) ); }
+}
+
+function alertHtml( type, msg ) {
+        var icons = { success: 'yes-alt', error: 'dismiss', warning: 'warning', info: 'info-outline' };
+        return '<div class="bcs-smtp-alert bcs-smtp-alert-' + type + '">' +
+                '<span class="dashicons dashicons-' + ( icons[ type ] || icons.info ) + '" aria-hidden="true"></span>' +
+                '<div class="bcs-smtp-alert-content">' + msg + '</div></div>';
+}
+
+function showInlineMsg( selector, type, msg ) {
+        var $el = $( selector );
+        clearTimeout( $el.data( 'bcsHideTimer' ) );
+        $el.html( alertHtml( type, msg ) );
+        // Errors and warnings stay until the next message so they can actually be read.
+        if ( type !== 'success' ) { return; }
+        $el.data( 'bcsHideTimer', setTimeout( function () { $el.empty(); }, 7000 ) );
+}
+
+function toast( type, msg ) {
+        var $t = $( '#bcs-smtp-toast' );
+        clearTimeout( $t.data( 'bcsHideTimer' ) );
+        $t.html( alertHtml( type, msg ) );
+        $t.data( 'bcsHideTimer', setTimeout( function () { $t.empty(); }, type === 'success' ? 4000 : 9000 ) );
+}
+
+function errorText( r, fallback ) {
+        if ( r && r.data ) {
+                if ( typeof r.data === 'string' ) { return r.data; }
+                if ( r.data.message ) { return r.data.message; }
+        }
+        return fallback;
+}
+function failText( xhr ) {
+        return xhr && xhr.status ? fmt( T( 'requestFailedCode' ), xhr.status ) : T( 'requestFailed' );
+}
+
+/* =====================================================================
+   Overview health banner — re-rendered from saved state after anything that
+   changes it (save, health check, test email), so it never shows a stale verdict.
+   ===================================================================== */
+var healthDirty = false;
+var overviewShown = false;
+
+function refreshHealthBanner() {
+        healthDirty = false;
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_get_health_banner', nonce: bcsSmtpData.nonce }, function ( r ) {
+                if ( r && r.success && r.data && r.data.html ) {
+                        $( '#bcs-smtp-health-banner' ).html( r.data.html );
+                        syncConnectionDot();
+                }
+        } );
+}
+
+/* After a save, test or check the banner is re-rendered right away, even from another tab,
+   so the Connection tab's status dot never shows an old result. */
+function markHealthDirty() {
+        refreshHealthBanner();
+}
+
+/* The Connection tab's dot mirrors the Overview banner: green flowing, red failing, amber otherwise */
+function syncConnectionDot() {
+        var $hero = $( '#bcs-smtp-health-banner .bcs-smtp-hero' );
+        if ( ! $hero.length ) { return; }
+        var tone = ( /bcs-smtp-hero--(ok|bad|warn|off)/.exec( $hero.attr( 'class' ) ) || [] )[ 1 ] || 'off';
+        $( '#bcs-smtp-conn-dot' ).attr( 'data-tone', 'off' === tone ? 'warn' : tone );
+        $( '#bcs-smtp-conn-dot-label' ).text( ' (' + $.trim( $hero.find( '#bcs-smtp-hero-title' ).text() ) + ')' );
+}
+
+/* The active tab's highlight slides between tabs instead of jumping */
+function movePill( instant ) {
+        var $nav = $( '.bcs-smtp-tabs' );
+        var tab  = $nav.find( '.bcs-smtp-tab[aria-selected="true"]' )[ 0 ];
+        var pill = $nav.find( '.bcs-smtp-tab-pill' )[ 0 ];
+        if ( ! tab || ! pill ) { return; }
+        $nav.toggleClass( 'is-instant', !! instant ).addClass( 'has-pill' );
+        pill.style.width     = tab.offsetWidth + 'px';
+        pill.style.height    = tab.offsetHeight + 'px';
+        pill.style.transform = 'translate(' + tab.offsetLeft + 'px,' + tab.offsetTop + 'px)';
+        if ( instant ) { setTimeout( function () { $nav.removeClass( 'is-instant' ); }, 50 ); }
+}
+$( window ).on( 'resize', function () { movePill( true ); } );
+if ( document.fonts && document.fonts.ready ) { document.fonts.ready.then( function () { movePill( true ); } ); }
+
+/* =====================================================================
+   Tabs — ARIA tablist with arrow-key support and persistence
+   ===================================================================== */
+var TAB_KEY = 'bcs_smtp_tab_v2';
+var emailLogLoaded = false;
+
+function setActiveTab( panel, focusTab ) {
+        var $tab = $( '.bcs-smtp-tab[data-panel="' + panel + '"]' );
+        if ( ! $tab.length ) { panel = 'overview'; $tab = $( '.bcs-smtp-tab[data-panel="overview"]' ); }
+        store.set( TAB_KEY, panel );
+        // Keep the URL fragment in step with the active tab, so a refresh (or a copied link)
+        // opens the tab you were on instead of whichever one the URL happened to name.
+        if ( window.history && history.replaceState && window.location.hash !== '#' + panel ) {
+                history.replaceState( null, '', window.location.pathname + window.location.search + '#' + panel );
+        }
+
+        var firstPaint = ! $( '.bcs-smtp-tabs' ).hasClass( 'has-pill' );
+        $( '.bcs-smtp-tab' ).attr( { 'aria-selected': 'false', tabindex: '-1' } );
+        $tab.attr( { 'aria-selected': 'true', tabindex: '0' } );
+        movePill( firstPaint );
+        if ( focusTab ) { $tab.trigger( 'focus' ); }
+
+        var tabsEl = $( '.bcs-smtp-tabs' )[ 0 ];
+        if ( tabsEl && $tab[ 0 ] ) {
+                var delta = $tab[ 0 ].getBoundingClientRect().left - tabsEl.getBoundingClientRect().left;
+                if ( delta < 0 || delta + $tab[ 0 ].offsetWidth > tabsEl.clientWidth ) { tabsEl.scrollLeft += delta - 8; }
+        }
+
         $( '.bcs-smtp-tab-panel' ).removeClass( 'active' );
         $( '#bcs-smtp-panel-' + panel ).addClass( 'active' );
 
-        // Lazy-load data on first visit to these panels
-        if ( panel === 'email-log' && ! emailLogLoaded ) {
-                emailLogLoaded = true;
-                loadEmailLog();
-        }
-        if ( panel === 'email-report' && ! emailReportLoaded ) {
-                emailReportLoaded = true;
-                loadEmailReport();
-        }
+        // Background health checks can change the verdict too, so redraw on every return to Overview.
+        if ( panel === 'overview' ) { initOverviewChart(); if ( healthDirty || overviewShown ) { refreshHealthBanner(); } overviewShown = true; }
+        if ( panel === 'email-log' && ! emailLogLoaded ) { emailLogLoaded = true; loadEmailLog(); }
+        if ( panel === 'reports' ) { initReportChart(); }
 }
 
@@ -45 +155 @@
 } );
 
-$( function () {
-        var stored = getStoredTab();
-        if ( stored && $( '.bcs-smtp-tab[data-panel="' + stored + '"]' ).length ) {
-                setActiveTab( stored );
-        }
+$( document ).on( 'keydown', '.bcs-smtp-tab', function ( e ) {
+        var $tabs = $( '.bcs-smtp-tab' );
+        var idx   = $tabs.index( this );
+        var next  = null;
+        if ( e.key === 'ArrowRight' ) { next = ( idx + 1 ) % $tabs.length; }
+        if ( e.key === 'ArrowLeft' )  { next = ( idx - 1 + $tabs.length ) % $tabs.length; }
+        if ( e.key === 'Home' )       { next = 0; }
+        if ( e.key === 'End' )        { next = $tabs.length - 1; }
+        if ( next === null ) { return; }
+        e.preventDefault();
+        setActiveTab( $tabs.eq( next ).data( 'panel' ), true );
+} );
+
+/* Any [data-goto] control jumps to a tab; optional data-focus moves focus, data-provider-pick preselects. */
+$( document ).on( 'click', '[data-goto]', function ( e ) {
+        e.preventDefault();
+        var $el = $( this );
+        var logStatus = $el.data( 'log-status' );
+        if ( logStatus !== undefined ) {
+                $( '.bcs-smtp-log-status-radio[value="' + logStatus + '"]' ).prop( 'checked', true );
+                $( '#bcs-smtp-log-status' ).val( logStatus );
+                if ( emailLogLoaded ) { loadEmailLog( 1 ); }
+        }
+        setActiveTab( $el.data( 'goto' ) );
+        var pick = $el.data( 'provider-pick' );
+        if ( pick ) {
+                $( '.bcs-smtp-provider-radio[value="' + pick + '"]' ).prop( 'checked', true ).trigger( 'change' );
+        }
+        var focus = $el.data( 'focus' );
+        window.scrollTo( { top: 0, behavior: 'auto' } );
+        if ( focus ) { setTimeout( function () { $( focus ).trigger( 'focus' ); }, 30 ); }
 } );
 
 /* =====================================================================
-   Accordion toggle
+   CONNECTION: provider presets
    ===================================================================== */
-$( document ).on( 'click', '.bcs-smtp-accordion-head', function () {
-        $( this ).closest( '.bcs-smtp-accordion' ).toggleClass( 'open' );
-} );
-
-/* =====================================================================
-   SETTINGS TAB: SMTP toggle → accordion
-   ===================================================================== */
+var ENC_PORTS = { ssl: 465, tls: 587, none: 25 };
+var PRESET_HOSTS = $( '.bcs-smtp-provider-radio' ).not( '[value="other"]' ).map( function () { return $( this ).data( 'host' ); } ).get().filter( Boolean );
+var PRESET_USERS = $( '.bcs-smtp-provider-radio' ).map( function () { return $( this ).data( 'user' ); } ).get().filter( Boolean );
+
+function updateServerSummary() {
+        var host = $.trim( $( '#bcs-smtp-smtp-host' ).val() );
+        var port = $( '#bcs-smtp-smtp-port' ).val();
+        var enc  = ( $( '.bcs-smtp-enc-radio:checked' ).val() || '' ).toUpperCase();
+        $( '#bcs-smtp-server-summary' ).text( host ? host + ' · ' + port + ' · ' + enc : T( 'pickServer' ) );
+}
+
+function setDisclosure( $d, open ) {
+        $d.toggleClass( 'is-open', open ).find( '.bcs-smtp-disclosure-head' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+}
+
+$( document ).on( 'click', '.bcs-smtp-disclosure-head', function () {
+        var $d = $( this ).closest( '.bcs-smtp-disclosure' );
+        setDisclosure( $d, ! $d.hasClass( 'is-open' ) );
+} );
+
+/* Remember what was typed for each provider while the user clicks around, so switching
+   to another provider and back never loses a server, port, encryption or username. */
+var providerMemory  = {};
+var currentProvider = $( '.bcs-smtp-provider-radio:checked' ).val() || '';
+
+function readConnectionFields() {
+        return {
+                host : $( '#bcs-smtp-smtp-host' ).val(),
+                port : $( '#bcs-smtp-smtp-port' ).val(),
+                enc  : $( '.bcs-smtp-enc-radio:checked' ).val(),
+                user : $( '#bcs-smtp-smtp-username' ).val()
+        };
+}
+
+function writeConnectionFields( f ) {
+        $( '#bcs-smtp-smtp-host' ).val( f.host );
+        $( '#bcs-smtp-smtp-port' ).val( f.port );
+        if ( f.enc ) { $( '.bcs-smtp-enc-radio[value="' + f.enc + '"]' ).prop( 'checked', true ); }
+        $( '#bcs-smtp-smtp-username' ).val( f.user );
+}
+
+/* SMTP switch off: the form folds away, like the Alerts card, and a note says what that means */
 $( document ).on( 'change', '#bcs-smtp-smtp-enabled', function () {
-        $( '#bcs-smtp-smtp-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Encryption radio → auto-fill port */
-var ENC_PORTS = { ssl: 465, tls: 587, none: 25 };
+        $( '#bcs-smtp-setup-body' ).prop( 'hidden', ! this.checked );
+        $( '#bcs-smtp-smtp-off' ).prop( 'hidden', this.checked );
+} );
+
+/* Provider picker: after a choice, show just that provider with a Change link */
+function syncPickedProvider() {
+        var $r = $( '.bcs-smtp-provider-radio:checked' );
+        if ( ! $r.length ) { return; }
+        var $chip = $r.closest( '.bcs-smtp-provider' );
+        $( '#bcs-smtp-picked-mark' ).html( $chip.find( '.bcs-smtp-provider-mark' ).html() ).attr( 'style', $chip.attr( 'style' ) );
+        $( '#bcs-smtp-picked-name' ).text( $chip.attr( 'title' ) );
+}
+function setProviderListOpen( open ) {
+        if ( ! $( '.bcs-smtp-provider-radio:checked' ).length ) { open = true; } // Nothing chosen yet: the list stays.
+        $( '#bcs-smtp-provider-chips' ).prop( 'hidden', ! open );
+        $( '#bcs-smtp-provider-picked' ).prop( 'hidden', open );
+        $( '#bcs-smtp-provider-change' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+}
+$( document ).on( 'click', '#bcs-smtp-provider-change', function () {
+        setProviderListOpen( true );
+        $( '.bcs-smtp-provider-radio:checked' ).trigger( 'focus' );
+} );
+/* A pointer pick closes the list straight away; keyboard users can arrow through it and it closes when they move on.
+   Pressing the mouse on a chip moves focus off the current one before the click lands, so focus leaving
+   during a press inside the list must not close it. */
+var providerPress = false;
+$( document ).on( 'mousedown touchstart', '#bcs-smtp-provider-chips', function () { providerPress = true; } );
+$( document ).on( 'click', '.bcs-smtp-provider', function ( e ) {
+        if ( e.target.tagName === 'INPUT' ) { return; } // The label's own click already handled this pick.
+        providerPress = false;
+        setTimeout( function () { syncPickedProvider(); setProviderListOpen( false ); }, 0 );
+} );
+$( document ).on( 'mouseup touchend', function () {
+        // A press that started in the list but ended outside it picked nothing; forget it.
+        setTimeout( function () { providerPress = false; }, 0 );
+} );
+$( document ).on( 'mousedown touchstart', function ( e ) {
+        // Clicking anywhere else closes an open list, even when nothing inside it holds focus.
+        if ( $( '#bcs-smtp-provider-chips' ).prop( 'hidden' ) ) { return; }
+        if ( $( e.target ).closest( '#bcs-smtp-provider-chips, #bcs-smtp-provider-change' ).length ) { return; }
+        syncPickedProvider();
+        setProviderListOpen( false );
+} );
+$( document ).on( 'focusout', '#bcs-smtp-provider-chips', function ( e ) {
+        if ( providerPress ) { return; }
+        if ( e.relatedTarget && $( e.relatedTarget ).closest( '#bcs-smtp-provider-chips' ).length ) { return; }
+        syncPickedProvider();
+        setProviderListOpen( false );
+} );
+
+$( document ).on( 'change', '.bcs-smtp-provider-radio', function () {
+        var $r      = $( this );
+        var d       = $r.data();
+        var key     = $r.val();
+        var isOther = key === 'other';
+        var $user   = $( '#bcs-smtp-smtp-username' );
+
+        if ( currentProvider && currentProvider !== key ) {
+                providerMemory[ currentProvider ] = readConnectionFields();
+        }
+
+        if ( providerMemory[ key ] ) {
+                // Been here before in this visit: put back exactly what was there.
+                writeConnectionFields( providerMemory[ key ] );
+        } else {
+                var f = readConnectionFields();
+                if ( isOther ) {
+                        // Bring back the last saved custom server; never carry another provider's server over.
+                        if ( d.host ) {
+                                f.host = d.host;
+                                f.port = d.port;
+                                f.enc  = d.enc;
+                        } else if ( PRESET_HOSTS.indexOf( $.trim( f.host ) ) !== -1 ) {
+                                f.host = '';
+                        }
+                } else {
+                        f.host = d.host;
+                        f.port = d.port;
+                        f.enc  = d.enc;
+                }
+                // Fixed usernames (SendGrid's "apikey") are set; one left over from such a preset is cleared.
+                if ( d.user ) {
+                        f.user = d.user;
+                } else if ( PRESET_USERS.indexOf( $.trim( f.user ) ) !== -1 ) {
+                        f.user = '';
+                }
+                writeConnectionFields( f );
+        }
+        currentProvider = key;
+
+        $( '#bcs-smtp-user-hint' ).text( d.userHint || '' );
+        $user.attr( 'placeholder', d.userHint || '' );
+        $( '#bcs-smtp-pass-label' ).text( d.passLabel || '' );
+        $( '#bcs-smtp-provider-note-text' ).text( d.note || '' );
+        var $link = $( '#bcs-smtp-provider-note-link' );
+        if ( d.link ) {
+                $link.attr( 'href', d.link ).prop( 'hidden', false );
+                $( '#bcs-smtp-provider-note-link-text' ).text( d.linkLabel || '' );
+        } else {
+                $link.prop( 'hidden', true );
+        }
+        $( '#bcs-smtp-provider-note' ).prop( 'hidden', false );
+
+        // "Other", and presets without a fixed server (Amazon SES is per region), need the server typed in.
+        var needsHost = isOther || ! d.host;
+        setDisclosure( $( '#bcs-smtp-server-details' ), needsHost || ! $.trim( $( '#bcs-smtp-smtp-host' ).val() ) );
+        updateServerSummary();
+
+        if ( needsHost && ! $.trim( $( '#bcs-smtp-smtp-host' ).val() ) ) {
+                $( '#bcs-smtp-smtp-host' ).trigger( 'focus' );
+        } else if ( ! $.trim( $user.val() ) ) {
+                $user.trigger( 'focus' );
+        }
+} );
+
+/* Encryption radio → auto-fill port (only when the port is still a standard one) */
 $( document ).on( 'change', '.bcs-smtp-enc-radio', function () {
-        var enc  = $( this ).val();
-        var $port = $( '#bcs-smtp-smtp-port' );
-        // Only auto-fill if the user hasn't customised the port
+        var $port   = $( '#bcs-smtp-smtp-port' );
         var current = parseInt( $port.val(), 10 );
-        var knownPorts = [ 25, 465, 587 ];
-        if ( knownPorts.indexOf( current ) !== -1 || ! current ) {
-                $port.val( ENC_PORTS[ enc ] || 587 );
-        }
-} );
+        if ( [ 25, 465, 587 ].indexOf( current ) !== -1 || ! current ) {
+                $port.val( ENC_PORTS[ $( this ).val() ] || 587 );
+        }
+        updateServerSummary();
+} );
+$( document ).on( 'input', '#bcs-smtp-smtp-host, #bcs-smtp-smtp-port', updateServerSummary );
 
 /* Auth toggle → show/hide username + password */
+/* Warn when sign-in is off for a provider that always requires it */
+function syncAuthWarning() {
+        var $p   = $( '.bcs-smtp-provider-radio:checked' );
+        var need = $p.length && $p.val() !== 'other' && ! $( '#bcs-smtp-smtp-auth' ).is( ':checked' );
+        if ( need ) {
+                $( '#bcs-smtp-auth-warning-title' ).text( fmt( T( 'needsAuth', '%s needs a username and password.' ), $.trim( $p.closest( 'label' ).find( '.bcs-smtp-provider-name' ).text() ) ) );
+        }
+        $( '#bcs-smtp-auth-warning' ).prop( 'hidden', ! need );
+}
+
 $( document ).on( 'change', '#bcs-smtp-smtp-auth', function () {
-        $( '#bcs-smtp-auth-fields' ).toggle( this.checked );
+        $( '#bcs-smtp-auth-fields' ).prop( 'hidden', ! this.checked );
+        syncAuthWarning();
+} );
+$( document ).on( 'change', '.bcs-smtp-provider-radio', syncAuthWarning );
+
+/* Password: change / keep / show */
+function showSavedPassword() {
+        $( '#bcs-smtp-pw-input' ).prop( 'hidden', true );
+        $( '#bcs-smtp-cancel-pw-btn' ).prop( 'hidden', true );
+        $( '#bcs-smtp-pw-display' ).prop( 'hidden', false );
+        $( '#bcs-smtp-smtp-password' ).val( '' );
+        $( '#bcs-smtp-pw-status' ).removeClass( 'is-bad' ).addClass( 'is-good' ).text( T( 'pwSaved' ) );
+}
+$( document ).on( 'click', '#bcs-smtp-change-pw-btn', function () {
+        $( '#bcs-smtp-pw-display' ).prop( 'hidden', true );
+        $( '#bcs-smtp-pw-input' ).prop( 'hidden', false );
+        $( '#bcs-smtp-cancel-pw-btn' ).prop( 'hidden', false );
+        $( '#bcs-smtp-smtp-password' ).val( '' ).trigger( 'focus' );
+        $( '#bcs-smtp-pw-status' ).removeClass( 'is-good is-bad' ).text( T( 'pwChanging' ) );
+} );
+$( document ).on( 'click', '#bcs-smtp-cancel-pw-btn', function ( e ) {
+        e.preventDefault();
+        showSavedPassword();
+        $( '#bcs-smtp-change-pw-btn' ).trigger( 'focus' );
+} );
+$( document ).on( 'click', '#bcs-smtp-toggle-pw-btn', function () {
+        var $input = $( '#bcs-smtp-smtp-password' );
+        var hidden = $input.attr( 'type' ) === 'password';
+        $input.attr( 'type', hidden ? 'text' : 'password' );
+        $( this ).attr( 'aria-label', hidden ? T( 'hidePw' ) : T( 'showPw' ) )
+                .find( '.dashicons' ).toggleClass( 'dashicons-visibility', ! hidden ).toggleClass( 'dashicons-hidden', hidden );
 } );
 
 /* Save SMTP settings */
+/* Unsaved changes on the Connection card: only real edits count, not values the page fills in itself */
+$( document ).on( 'input change', '.bcs-smtp-setup input', function ( e ) {
+        if ( e.originalEvent ) { $( '#bcs-smtp-smtp-unsaved' ).prop( 'hidden', false ); }
+} );
+
 $( document ).on( 'click', '#bcs-smtp-save-smtp-btn', function () {
         var $btn      = $( this );
-        var hasHost   = $( '#bcs-smtp-smtp-host' ).val().trim() !== '';
+        var hasHost   = $.trim( $( '#bcs-smtp-smtp-host' ).val() ) !== '';
         var isEnabled = $( '#bcs-smtp-smtp-enabled' ).is( ':checked' );
-        var btnLabel  = '<span class="dashicons dashicons-saved"></span> Save SMTP Settings';
-
-        $btn.prop( 'disabled', true ).html(
-                '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> ' +
-                ( isEnabled && hasHost ? 'Saving & testing connection…' : 'Saving…' )
-        );
+        var newPw     = $( '#bcs-smtp-smtp-password' ).val();
+
+        setBusy( $btn, isEnabled && hasHost ? T( 'savingTesting' ) : T( 'saving' ) );
 
         $.post( bcsSmtpData.ajaxurl, {
@@ -108 +431 @@
                 smtp_auth       : $( '#bcs-smtp-smtp-auth' ).is( ':checked' ) ? 1 : 0,
                 smtp_username   : $( '#bcs-smtp-smtp-username' ).val(),
-                smtp_password   : $( '#bcs-smtp-smtp-password' ).val(),
+                smtp_password   : newPw,
+                provider        : $( '.bcs-smtp-provider-radio:checked' ).val() || '',
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnLabel );
-
+                clearBusy( $btn );
                 if ( ! r || ! r.success ) {
-                        var errMsg = ( r && r.data ) ? r.data : 'Save failed — check server error logs.';
-                        showInlineMsg( '#bcs-smtp-smtp-msg', 'error', errMsg );
+                        showInlineMsg( '#bcs-smtp-smtp-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                         return;
                 }
-
-                // Update password display after save
-                var newPw = $( '#bcs-smtp-smtp-password' ).val();
-                if ( newPw !== '' && r.data.password_set ) {
-                        // New password saved — switch back to masked display + Change button
-                        $( '#bcs-smtp-pw-display' )
-                                .css( 'display', 'flex' )
-                                .html(
-                                        '<input type="password" class="bcs-smtp-input" value="placeholder_pw" disabled style="flex:1" aria-label="Saved password (masked)">' +
-                                        '<button type="button" id="bcs-smtp-change-pw-btn" class="bcs-smtp-btn bcs-smtp-btn-secondary bcs-smtp-btn-sm" style="flex-shrink:0;white-space:nowrap">' +
-                                        '<span class="dashicons dashicons-edit"></span> Change</button>'
-                                );
-                        $( '#bcs-smtp-pw-input' ).hide();
-                        $( '#bcs-smtp-smtp-password' ).val( '' );
-                        $( '#bcs-smtp-pw-status' )
-                                .text( '✓ Password saved — leave blank to keep it.' )
-                                .css( 'color', 'var(--bcs-smtp-emerald)' );
-                }
-
-                // Show save result
+                if ( newPw !== '' && r.data.password_set ) { showSavedPassword(); }
+                $( '#bcs-smtp-smtp-unsaved' ).prop( 'hidden', true );
+
                 var msg = '<strong>' + r.data.message + '</strong>';
-
-                // Show connection test result if returned
                 if ( r.data.connection ) {
                         var conn = r.data.connection;
-                        if ( conn.success ) {
-                                msg += '<br><span style="color:var(--bcs-smtp-emerald)">✓ ' + conn.message + '</span>';
-                        } else {
-                                msg += '<br><span style="color:var(--bcs-smtp-rose)">✗ Connection failed: ' + conn.message + '</span>';
-                        }
-                        // Use warning type if connection failed (settings saved but not reachable)
+                        msg += conn.success
+                                ? '<br><span class="is-good">' + conn.message + '</span>'
+                                : '<br><span class="is-bad">' + T( 'connFailed' ) + ' ' + conn.message + '</span>';
                         showInlineMsg( '#bcs-smtp-smtp-msg', conn.success ? 'success' : 'warning', msg );
+                        markHealthDirty();
+                        if ( conn.success ) { $( '#bcs-smtp-send-test-btn' ).trigger( 'focus' ); }
                 } else {
                         showInlineMsg( '#bcs-smtp-smtp-msg', 'success', msg );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( btnLabel );
-                var detail = xhr.status ? ' (HTTP ' + xhr.status + ')' : '';
-                showInlineMsg( '#bcs-smtp-smtp-msg', 'error', 'Request failed' + detail + ' — check server error logs or enable WP_DEBUG.' );
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-smtp-msg', 'error', failText( xhr ) );
         } );
 } );
 
 /* =====================================================================
-   EMAIL LOG TAB
+   Test email + health check
    ===================================================================== */
-var emailLogLoaded = false;
+$( document ).on( 'click', '#bcs-smtp-send-test-btn', function () {
+        var $btn = $( this );
+        var to   = $.trim( $( '#bcs-smtp-test-to' ).val() );
+        if ( ! to ) {
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', T( 'enterRecipient' ) );
+                $( '#bcs-smtp-test-to' ).trigger( 'focus' );
+                return;
+        }
+        setBusy( $btn, T( 'sending' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_send_test', nonce: bcsSmtpData.nonce, to: to }, function ( r ) {
+                clearBusy( $btn );
+                if ( r && r.success ) {
+                        showInlineMsg( '#bcs-smtp-test-msg', 'success', r.data.message );
+                        return;
+                }
+                // Error payload is either { message, failure_type } or a plain string (validation / rate limit).
+                var d   = r ? r.data : null;
+                var msg = ! d ? T( 'testFailed' )
+                        : ( typeof d === 'string' ? d
+                        : ( d.failure_type ? '<strong>' + d.failure_type + ':</strong> ' + d.message : d.message ) );
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', msg );
+        } ).fail( function ( xhr ) {
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-test-msg', 'error', failText( xhr ) );
+        } );
+} );
+
+$( document ).on( 'click', '[data-check-now]', function () {
+        var $btn  = $( this );
+        var msgEl = $btn.data( 'msg' );
+        setBusy( $btn, T( 'checking' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_check_now', nonce: bcsSmtpData.nonce }, function ( r ) {
+                clearBusy( $btn );
+                if ( r && r.success ) {
+                        showInlineMsg( msgEl, r.data.success ? 'success' : 'error', r.data.message );
+                        markHealthDirty();
+                } else {
+                        showInlineMsg( msgEl, 'error', errorText( r, T( 'checkFailed' ) ) );
+                }
+        } ).fail( function ( xhr ) {
+                clearBusy( $btn );
+                showInlineMsg( msgEl, 'error', failText( xhr ) );
+        } );
+} );
+
+/* =====================================================================
+   EMAIL LOG
+   ===================================================================== */
 var emailLogPage      = 1;
 var emailLogSearchTmr = null;
 
 function emailLogSkeletonHtml() {
-        var widths = [ 85, 150, 120, 120, 64, 90, 70 ];
-        var row    = '<tr class="bcs-smtp-skeleton-row">' + widths.map( function ( w ) {
-                return '<td><span class="bcs-smtp-skel" style="width:' + w + 'px"></span></td>';
+        var widths = [ 60, 78, 66, 54, 30 ];
+        var row = '<tr class="bcs-smtp-skeleton-row" aria-hidden="true">' + widths.map( function ( w ) {
+                return '<td><span class="bcs-smtp-skel" style="width:' + w + '%"></span></td>';
         } ).join( '' ) + '</tr>';
         return new Array( 6 ).fill( row ).join( '' );
@@ -178 +526 @@
         emailLogPage = page;
         var $tbody = $( '#bcs-smtp-log-tbody' );
-        $tbody.html( emailLogSkeletonHtml() );
+        $tbody.attr( 'aria-busy', 'true' ).html( emailLogSkeletonHtml() );
 
         $.post( bcsSmtpData.ajaxurl, {
-                action      : 'bcs_smtp_get_email_log',
-                nonce       : bcsSmtpData.nonce,
-                page        : page,
-                per_page    : parseInt( $( '#bcs-smtp-log-per-page' ).val(), 10 ) || 10,
-                status      : $( '#bcs-smtp-log-status' ).val(),
-                search      : $( '#bcs-smtp-log-search' ).val(),
-                date_range  : $( '#bcs-smtp-log-date-range' ).val(),
+                action     : 'bcs_smtp_get_email_log',
+                nonce      : bcsSmtpData.nonce,
+                page       : page,
+                per_page   : parseInt( $( '#bcs-smtp-log-per-page' ).val(), 10 ) || 25,
+                status     : $( '#bcs-smtp-log-status' ).val(),
+                search     : $( '#bcs-smtp-log-search' ).val(),
+                date_range : $( '#bcs-smtp-log-date-range' ).val(),
         }, function ( r ) {
+                $tbody.removeAttr( 'aria-busy' );
                 if ( r && r.success ) {
                         $tbody.html( r.data.html );
-                        var info = 'Page ' + r.data.page + ' of ' + ( r.data.pages || 1 ) + ' — ' + r.data.total + ' email(s)';
-                        $( '#bcs-smtp-log-page-info' ).text( info );
+                        $.each( r.data.counts || {}, function ( key, n ) {
+                                $( '.bcs-smtp-seg-count[data-count="' + key + '"]' ).text( n );
+                        } );
+                        $( '#bcs-smtp-log-page-info' ).text( fmt( T( 'pageInfo' ), r.data.page, r.data.pages || 1, r.data.total ) );
                         $( '#bcs-smtp-log-prev' ).prop( 'disabled', page <= 1 );
                         $( '#bcs-smtp-log-next' ).prop( 'disabled', page >= r.data.pages );
                 } else {
-                        $tbody.html( '<tr><td colspan="7" style="text-align:center;padding:20px;color:var(--bcs-smtp-text-3)">Error loading log.</td></tr>' );
+                        $tbody.html( '<tr><td colspan="5" class="bcs-smtp-table-empty">' + T( 'loadError' ) + '</td></tr>' );
                 }
-        } ).fail( function () {
-                $tbody.html( '<tr><td colspan="7" style="text-align:center;padding:20px;color:var(--bcs-smtp-text-3)">Request failed.</td></tr>' );
-        } );
-}
+        } ).fail( function ( xhr ) {
+                $tbody.removeAttr( 'aria-busy' ).html( '<tr><td colspan="5" class="bcs-smtp-table-empty">' + failText( xhr ) + '</td></tr>' );
+        } );
+}
+
+/* Full email view: size the preview to its content; switch between preview and HTML source */
+function fitMailFrame( frame ) {
+        try {
+                frame.contentDocument.documentElement.style.overflow = 'hidden'; // The frame grows to fit, so no inner scrollbar.
+                frame.style.height = '0px'; // Collapse first, or a short email reports the frame's own height.
+                frame.style.height = Math.max( 160, frame.contentDocument.documentElement.scrollHeight ) + 'px';
+        } catch ( e ) {} // Not readable: keep the default height.
+}
+$( '.bcs-smtp-mailframe' ).each( function () {
+        var frame = this;
+        frame.addEventListener( 'load', function () { fitMailFrame( frame ); } );
+        if ( frame.contentDocument && 'complete' === frame.contentDocument.readyState ) { fitMailFrame( frame ); }
+} );
+$( window ).on( 'resize', function () { $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } ); } );
+$( document ).on( 'change', 'input[name="bcs_smtp_mailview_mode"]', function () {
+        var mode = this.value;
+        $( '.bcs-smtp-mailview-message [data-mode]' ).each( function () {
+                $( this ).prop( 'hidden', $( this ).data( 'mode' ) !== mode );
+        } );
+        if ( 'preview' === mode ) { $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } ); }
+} );
+$( document ).on( 'change', 'input[name="bcs_smtp_mailview_device"]', function () {
+        $( '.bcs-smtp-mailframe-stage' ).toggleClass( 'is-mobile', 'mobile' === this.value );
+        $( '.bcs-smtp-mailframe' ).each( function () { fitMailFrame( this ); } );
+} );
+
+$( document ).on( 'click', '.bcs-smtp-copy-btn', function () {
+        var $btn = $( this );
+        var text = $btn.closest( '.bcs-smtp-log-error, .bcs-smtp-mailview-source' ).find( 'pre' ).text();
+        var done = function () {
+                $btn.find( '.bcs-smtp-copy-label' ).text( T( 'copied' ) );
+                setTimeout( function () { $btn.find( '.bcs-smtp-copy-label' ).text( T( 'copy' ) ); }, 1600 );
+        };
+        if ( navigator.clipboard && window.isSecureContext ) {
+                navigator.clipboard.writeText( text ).then( done );
+        } else {
+                var ta = $( '<textarea readonly>' ).val( text ).css( { position: 'fixed', opacity: 0 } ).appendTo( 'body' );
+                ta[ 0 ].select();
+                document.execCommand( 'copy' );
+                ta.remove();
+                done();
+        }
+} );
 
 $( document ).on( 'input', '#bcs-smtp-log-search', function () {
         clearTimeout( emailLogSearchTmr );
-        emailLogSearchTmr = setTimeout( function () { loadEmailLog( 1 ); }, 400 );
+        emailLogSearchTmr = setTimeout( function () { loadEmailLog( 1 ); }, 350 );
 } );
 $( document ).on( 'keydown', '#bcs-smtp-log-search', function ( e ) {
@@ -214 +609 @@
         }
 } );
-$( document ).on( 'change', '#bcs-smtp-log-date-range, #bcs-smtp-log-status, #bcs-smtp-log-per-page', function () {
+$( document ).on( 'change', '.bcs-smtp-log-status-radio', function () {
+        $( '#bcs-smtp-log-status' ).val( $( this ).val() );
         loadEmailLog( 1 );
 } );
-$( document ).on( 'click', '#bcs-smtp-log-prev', function () {
-        if ( emailLogPage > 1 ) { loadEmailLog( emailLogPage - 1 ); }
-} );
-$( document ).on( 'click', '#bcs-smtp-log-next', function () {
-        loadEmailLog( emailLogPage + 1 );
-} );
-
+$( document ).on( 'change', '#bcs-smtp-log-date-range, #bcs-smtp-log-per-page', function () { loadEmailLog( 1 ); } );
+$( document ).on( 'click', '#bcs-smtp-log-prev', function () { if ( emailLogPage > 1 ) { loadEmailLog( emailLogPage - 1 ); } } );
+$( document ).on( 'click', '#bcs-smtp-log-next', function () { loadEmailLog( emailLogPage + 1 ); } );
+
+$( document ).on( 'click', '[data-export-log]', function () {
+        window.location.href = bcsSmtpData.exportUrl + '&nonce=' + encodeURIComponent( bcsSmtpData.exportNonce ) + '&date_range=30days&status=all&search=';
+} );
+
+$( document ).on( 'click', '#bcs-smtp-export-csv-btn', function ( e ) {
+        e.preventDefault();
+        window.location.href = bcsSmtpData.exportUrl
+                + '&nonce='      + encodeURIComponent( bcsSmtpData.exportNonce )
+                + '&date_range=' + encodeURIComponent( $( '#bcs-smtp-log-date-range' ).val() )
+                + '&status='     + encodeURIComponent( $( '#bcs-smtp-log-status' ).val() || 'all' )
+                + '&search='     + encodeURIComponent( $( '#bcs-smtp-log-search' ).val() );
+} );
 
 /* =====================================================================
-   EMAIL REPORT TAB
+   OVERVIEW — email activity line chart (dependency-free SVG)
    ===================================================================== */
-var emailReportLoaded = false;
-var reportChart       = null;
+var SVGNS = 'http://www.w3.org/2000/svg';
+
+function dayLabel( ymd, opts ) {
+        var m = /^(\d{4})-(\d{2})-(\d{2})$/.exec( ymd );
+        if ( ! m ) { return ymd; }
+        return new Date( +m[ 1 ], m[ 2 ] - 1, +m[ 3 ] ).toLocaleDateString( document.documentElement.lang || undefined, opts || { month: 'short', day: 'numeric' } );
+}
+
+/* A "nice" axis: 4 steps of 1, 2, 2.5 or 5 × 10^n, never below 1 per step. */
+function niceStep( max ) {
+        var raw = Math.max( 1, max / 4 );
+        var pow = Math.pow( 10, Math.floor( Math.log10( raw ) ) );
+        var n   = raw / pow;
+        var m   = n <= 1 ? 1 : n <= 2 ? 2 : n <= 2.5 ? 2.5 : n <= 5 ? 5 : 10;
+        return Math.max( 1, Math.ceil( m * pow ) );
+}
+
+/* Monotone cubic interpolation (Fritsch–Carlson) — smooth without overshooting below zero. */
+function smoothPath( pts ) {
+        var n = pts.length;
+        if ( n < 2 ) { return n ? 'M' + pts[ 0 ][ 0 ] + ',' + pts[ 0 ][ 1 ] : ''; }
+        var dx = [], dy = [], s = [], t = [];
+        for ( var i = 0; i < n - 1; i++ ) {
+                dx[ i ] = pts[ i + 1 ][ 0 ] - pts[ i ][ 0 ];
+                dy[ i ] = pts[ i + 1 ][ 1 ] - pts[ i ][ 1 ];
+                s[ i ]  = dy[ i ] / dx[ i ];
+        }
+        t[ 0 ] = s[ 0 ];
+        t[ n - 1 ] = s[ n - 2 ];
+        for ( i = 1; i < n - 1; i++ ) {
+                t[ i ] = ( s[ i - 1 ] * s[ i ] <= 0 ) ? 0 : 3 * ( dx[ i - 1 ] + dx[ i ] ) / ( ( 2 * dx[ i ] + dx[ i - 1 ] ) / s[ i - 1 ] + ( dx[ i ] + 2 * dx[ i - 1 ] ) / s[ i ] );
+        }
+        var d = 'M' + pts[ 0 ][ 0 ].toFixed( 1 ) + ',' + pts[ 0 ][ 1 ].toFixed( 1 );
+        for ( i = 0; i < n - 1; i++ ) {
+                var h = dx[ i ] / 3;
+                d += 'C' + ( pts[ i ][ 0 ] + h ).toFixed( 1 ) + ',' + ( pts[ i ][ 1 ] + h * t[ i ] ).toFixed( 1 ) + ' ' +
+                        ( pts[ i + 1 ][ 0 ] - h ).toFixed( 1 ) + ',' + ( pts[ i + 1 ][ 1 ] - h * t[ i + 1 ] ).toFixed( 1 ) + ' ' +
+                        pts[ i + 1 ][ 0 ].toFixed( 1 ) + ',' + pts[ i + 1 ][ 1 ].toFixed( 1 );
+        }
+        return d;
+}
+
+function svgEl( name, attrs, parent ) {
+        var el = document.createElementNS( SVGNS, name );
+        for ( var k in attrs ) { if ( attrs.hasOwnProperty( k ) ) { el.setAttribute( k, attrs[ k ] ); } }
+        if ( parent ) { parent.appendChild( el ); }
+        return el;
+}
+
+function LineChart( el ) {
+        this.el   = el;
+        this.tip  = el.querySelector( '.bcs-smtp-linechart-tip' );
+        this.idx  = -1;
+        this.data = null;
+        var self  = this;
+
+        el.addEventListener( 'mousemove', function ( e ) { self.pointAt( e.clientX ); } );
+        el.addEventListener( 'mouseleave', function () { self.hide(); } );
+        el.addEventListener( 'blur', function () { self.hide(); } );
+        el.addEventListener( 'keydown', function ( e ) {
+                if ( ! self.data ) { return; }
+                var n = self.data.labels.length;
+                if ( e.key === 'ArrowRight' || e.key === 'ArrowLeft' ) {
+                        e.preventDefault();
+                        var i = self.idx < 0 ? n - 1 : self.idx + ( e.key === 'ArrowRight' ? 1 : -1 );
+                        self.show( Math.max( 0, Math.min( n - 1, i ) ) );
+                } else if ( e.key === 'Escape' ) {
+                        self.hide();
+                }
+        } );
+        if ( window.ResizeObserver ) {
+                var lastW = 0;
+                new ResizeObserver( function () {
+                        var w = el.clientWidth;
+                        if ( self.data && w && Math.abs( w - lastW ) > 2 ) { lastW = w; self.render( self.data, true ); }
+                } ).observe( el );
+        }
+}
+
+/* Long ranges read better per week than as daily spikes. */
+function bucketWeekly( data ) {
+        if ( data.labels.length <= 45 ) { return data; }
+        var size = data.labels.length > 200 ? 14 : 7;
+        var out = { labels: [], success: [], failed: [], unconfirmed: [], weekly: true, span: size };
+        for ( var i = 0; i < data.labels.length; i += size ) {
+                out.labels.push( data.labels[ i ] );
+                [ 'success', 'failed', 'unconfirmed' ].forEach( function ( k ) {
+                        out[ k ].push( data[ k ].slice( i, i + size ).reduce( function ( a, b ) { return a + ( +b ); }, 0 ) );
+                } );
+        }
+        return out;
+}
+
+LineChart.prototype.render = function ( data, quiet ) {
+        data = bucketWeekly( data );
+        this.data = data;
+        this.idx  = -1;
+        var el = this.el;
+        var old = el.querySelector( 'svg' );
+        if ( old ) { el.removeChild( old ); }
+
+        var W = el.clientWidth, H = el.clientHeight;
+        if ( ! W || ! H ) { return; }
+        var pad = { l: 40, r: 12, t: 12, b: 28 };
+        var n   = data.labels.length;
+        var series = [ { key: 'success', cls: 'is-sent', color: 'var(--bcs-brand-ink)' } ];
+        if ( data.failed.some( function ( v ) { return v > 0; } ) ) { series.push( { key: 'failed', cls: 'is-failed', color: 'var(--bcs-bad)' } ); }
+        if ( data.unconfirmed.some( function ( v ) { return v > 0; } ) ) { series.push( { key: 'unconfirmed', cls: 'is-unconfirmed', color: 'var(--bcs-warn)' } ); }
+
+        var max = 0;
+        series.forEach( function ( s ) { data[ s.key ].forEach( function ( v ) { max = Math.max( max, v ); } ); } );
+        var step = niceStep( max ), top = step * 4;
+        var iw = W - pad.l - pad.r, ih = H - pad.t - pad.b;
+        var x = function ( i ) { return pad.l + ( n > 1 ? i * iw / ( n - 1 ) : iw / 2 ); };
+        var y = function ( v ) { return pad.t + ih - ( v / top ) * ih; };
+        this.geom = { x: x, y: y, pad: pad, iw: iw, n: n, series: series };
+
+        var svg = svgEl( 'svg', { viewBox: '0 0 ' + W + ' ' + H, 'aria-hidden': 'true', focusable: 'false' } );
+        if ( quiet ) { svg.setAttribute( 'class', 'is-quiet' ); }
+
+        var grid = svgEl( 'g', { 'class': 'bcs-smtp-lc-grid' }, svg );
+        for ( var g = 0; g <= 4; g++ ) {
+                var gy = y( step * g );
+                svgEl( 'line', { x1: pad.l, x2: W - pad.r, y1: gy, y2: gy, 'class': g === 0 ? 'is-base' : '' }, grid );
+                var lbl = svgEl( 'text', { x: pad.l - 10, y: gy + 4, 'text-anchor': 'end', 'class': 'bcs-smtp-lc-label' }, grid );
+                lbl.textContent = ( step * g ).toLocaleString();
+        }
+        var ticks = n > 1 ? [ 0, Math.round( ( n - 1 ) / 4 ), Math.round( ( n - 1 ) / 2 ), Math.round( 3 * ( n - 1 ) / 4 ), n - 1 ] : [ 0 ];
+        ticks.filter( function ( v, i, a ) { return a.indexOf( v ) === i; } ).forEach( function ( i, k, arr ) {
+                var anchor = k === 0 ? 'start' : ( k === arr.length - 1 ? 'end' : 'middle' );
+                var t = svgEl( 'text', { x: x( i ), y: H - 6, 'text-anchor': anchor, 'class': 'bcs-smtp-lc-label' }, grid );
+                t.textContent = dayLabel( data.labels[ i ] );
+        } );
+
+        // Area under "sent", then each line on top.
+        var sentPts = data.success.map( function ( v, i ) { return [ x( i ), y( v ) ]; } );
+        var line0 = smoothPath( sentPts );
+        if ( n > 1 ) {
+                svgEl( 'path', { d: line0 + 'L' + x( n - 1 ) + ',' + y( 0 ) + 'L' + x( 0 ) + ',' + y( 0 ) + 'Z', 'class': 'bcs-smtp-lc-area' }, svg );
+        }
+        var paths = [];
+        series.slice().reverse().forEach( function ( s ) {
+                var pts = data[ s.key ].map( function ( v, i ) { return [ x( i ), y( v ) ]; } );
+                paths.push( svgEl( 'path', { d: smoothPath( pts ), 'class': 'bcs-smtp-lc-line ' + s.cls }, svg ) );
+        } );
+
+        this.cursor = svgEl( 'line', { x1: 0, x2: 0, y1: pad.t, y2: pad.t + ih, 'class': 'bcs-smtp-lc-cursor' }, svg );
+        this.dots = series.map( function ( s ) { return svgEl( 'circle', { r: 4.5, cx: 0, cy: 0, fill: s.color, 'class': 'bcs-smtp-lc-dot' }, svg ); } );
+
+        el.insertBefore( svg, el.firstChild );
+        paths.forEach( function ( p ) {
+                var len = p.getTotalLength ? Math.ceil( p.getTotalLength() ) : 0;
+                p.style.setProperty( '--len', len );
+                if ( quiet ) { p.style.animation = 'none'; p.style.strokeDashoffset = 0; }
+        } );
+        this.hide();
+};
+
+LineChart.prototype.pointAt = function ( clientX ) {
+        if ( ! this.geom ) { return; }
+        var r = this.el.getBoundingClientRect();
+        var g = this.geom;
+        var i = g.n > 1 ? Math.round( ( clientX - r.left - g.pad.l ) / ( g.iw / ( g.n - 1 ) ) ) : 0;
+        this.show( Math.max( 0, Math.min( g.n - 1, i ) ) );
+};
+
+LineChart.prototype.show = function ( i ) {
+        var g = this.geom, d = this.data;
+        if ( ! g ) { return; }
+        this.idx = i;
+        var cx = g.x( i );
+        this.cursor.setAttribute( 'x1', cx );
+        this.cursor.setAttribute( 'x2', cx );
+        g.series.forEach( function ( s, k ) {
+                this.dots[ k ].setAttribute( 'cx', cx );
+                this.dots[ k ].setAttribute( 'cy', g.y( d[ s.key ][ i ] ) );
+        }, this );
+        this.el.classList.add( 'is-hover' );
+
+        var rows = [
+                [ 'sent', T( 'sent', 'Sent' ), d.success[ i ] ],
+                [ 'bad', T( 'failed', 'Failed' ), d.failed[ i ] ],
+                [ 'warn', T( 'unconfirmed', 'Unconfirmed' ), d.unconfirmed[ i ] ],
+        ];
+        var when = d.weekly ? fmt( d.span === 14 ? T( 'twoWeeksOf', '2 weeks from %s' ) : T( 'weekOf', 'Week of %s' ), dayLabel( d.labels[ i ] ) ) : dayLabel( d.labels[ i ], { weekday: 'short', month: 'short', day: 'numeric' } );
+        var html = '<strong>' + when + '</strong>';
+        rows.forEach( function ( r ) {
+                html += '<span><i class="bcs-smtp-key bcs-smtp-key--' + r[ 0 ] + '"></i>' + r[ 1 ] + '<b>' + Number( r[ 2 ] ).toLocaleString() + '</b></span>';
+        } );
+        this.tip.innerHTML = html;
+        this.tip.hidden = false;
+        var w = this.tip.offsetWidth, W = this.el.clientWidth;
+        this.tip.style.left = Math.max( w / 2, Math.min( W - w / 2, cx ) ) + 'px';
+};
+
+LineChart.prototype.hide = function () {
+        this.idx = -1;
+        this.el.classList.remove( 'is-hover' );
+        if ( this.tip ) { this.tip.hidden = true; }
+};
+
+var ovChart = null;
+
+function updateOverviewFigures( sum ) {
+        var nf = function ( v ) { return Number( v ).toLocaleString(); };
+        var $f = $( '#bcs-smtp-ov-figures' );
+        $f.find( '[data-fig="success"]' ).text( nf( sum.success ) );
+        $f.find( '[data-fig="failed"]' ).text( nf( sum.failed ) ).toggleClass( 'is-bad', sum.failed > 0 );
+        $f.find( '[data-fig="unconfirmed"]' ).text( nf( sum.unconfirmed ) );
+        $f.find( '[data-fig="rate"]' ).html( sum.total > 0
+                ? ( Math.round( sum.success / sum.total * 1000 ) / 10 ).toLocaleString() + '<small>%</small>'
+                : '—' );
+        $( '#bcs-smtp-ov-empty' ).prop( 'hidden', sum.total > 0 );
+}
+
+$( document ).on( 'change', '.bcs-smtp-ov-range', function () {
+        var range = $( this ).val();
+        $( '#bcs-smtp-ov-chart' ).attr( 'aria-busy', 'true' );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_get_email_report', nonce: bcsSmtpData.nonce, date_range: range }, function ( r ) {
+                $( '#bcs-smtp-ov-chart' ).removeAttr( 'aria-busy' );
+                if ( ! r || ! r.success ) { return; }
+                updateOverviewFigures( r.data.summary );
+                if ( ovChart ) { ovChart.render( r.data.chart ); }
+        } );
+} );
+
+function initOverviewChart() {
+        var el = document.getElementById( 'bcs-smtp-ov-chart' );
+        if ( ! el || ovChart ) { return; }
+        var data;
+        try { data = JSON.parse( el.getAttribute( 'data-chart' ) ); } catch ( e ) { return; }
+        ovChart = new LineChart( el );
+        ovChart.render( data, window.matchMedia && window.matchMedia( '(prefers-reduced-motion: reduce)' ).matches );
+}
+
+/* =====================================================================
+   REPORTS
+   ===================================================================== */
+var reportChart = null;
+var reportRange = '30days';
+
+/* Facts derived from the daily series: no extra queries needed. */
+var RANGE_DAYS = { '7days': 7, '30days': 30, '3months': 90 };
+
+function showRecipients( count ) {
+        var $dd = $( '#bcs-smtp-highlights [data-hl="recipients"]' );
+        if ( count === undefined || count === null || isNaN( count ) ) { $dd.text( '—' ); return; }
+        count = +count;
+        $dd.html( count.toLocaleString() + ' <small>' + ( 1 === count ? T( 'oneRecipient', 'recipient' ) : T( 'manyRecipients', 'recipients' ) ) + '</small>' )
+                .toggleClass( 'is-good', count > 0 );
+}
+
+function updateHighlights( raw ) {
+        var n = raw.labels.length;
+        // The series runs from the start date through today, so it holds one more calendar day
+        // than the range's name; describe the period by its nominal length.
+        var days = RANGE_DAYS[ reportRange ] || n;
+        var total = 0, peak = -1, peakIdx = -1;
+        for ( var i = 0; i < n; i++ ) {
+                var day = ( +raw.success[ i ] ) + ( +raw.failed[ i ] ) + ( +raw.unconfirmed[ i ] );
+                total  += day;
+                if ( day > peak ) { peak = day; peakIdx = i; }
+        }
+        var $h = $( '#bcs-smtp-highlights' );
+        var avg = days ? total / days : 0;
+        $h.find( '[data-hl="avg"]' ).text( ! days ? '—' : ( total > 0 && avg < 0.5 ? T( 'lessThanOne', 'Less than 1' ) : Math.round( avg ).toLocaleString() ) );
+        $h.find( '[data-hl="peak"]' ).html( peak > 0
+                ? dayLabel( raw.labels[ peakIdx ] ) + ' <small>' + fmt( T( 'emailsCount', '%s emails' ), peak.toLocaleString() ) + '</small>'
+                : '—' );
+        // Failure-free counts use exactly the period's days (the most recent ones, through today).
+        var start = Math.max( 0, n - days );
+        var clean = 0, run = 0, best = 0;
+        for ( var d = start; d < n; d++ ) {
+                if ( +raw.failed[ d ] > 0 ) {
+                        run = 0;
+                } else {
+                        clean++;
+                        run++;
+                        best = Math.max( best, run );
+                }
+        }
+        var daysText = function ( v ) { return v.toLocaleString() + ' <small>' + ( 1 === v ? T( 'oneDay', 'day' ) : T( 'manyDays', 'days' ) ) + '</small>'; };
+        $h.find( '[data-hl="cleandays"]' ).html( n ? clean.toLocaleString() + ' <small>' + fmt( T( 'ofDays', 'of %s days' ), Math.min( days, n - start ).toLocaleString() ) + '</small>' : '—' )
+                .toggleClass( 'is-good', clean > 0 );
+        $h.find( '[data-hl="beststreak"]' ).html( n ? daysText( best ) : '—' ).toggleClass( 'is-good', best > 0 );
+
+}
+
+function renderReport( sum, chart ) {
+        var nf = function ( v ) { return Number( v ).toLocaleString(); };
+        $( '#bcs-smtp-report-total' ).text( nf( sum.total ) );
+        $( '#bcs-smtp-report-success' ).text( nf( sum.success ) );
+        $( '#bcs-smtp-report-failed' ).text( nf( sum.failed ) ).toggleClass( 'is-bad', sum.failed > 0 );
+        $( '#bcs-smtp-report-unconfirmed' ).text( nf( sum.unconfirmed ) );
+        var rate = sum.total > 0 ? Math.round( sum.success / sum.total * 1000 ) / 10 : null;
+        $( '#bcs-smtp-report-rate' ).html( null === rate ? '—' : rate.toLocaleString() + '<small>%</small>' );
+        $( '#bcs-smtp-report-ratebar' ).css( 'width', ( rate || 0 ) + '%' );
+        $( '#bcs-smtp-chart-empty' ).prop( 'hidden', sum.total > 0 );
+        if ( reportChart ) { reportChart.render( chart ); }
+        updateHighlights( chart );
+        showRecipients( sum.recipients );
+}
 
 function loadEmailReport() {
+        var $chart = $( '#bcs-smtp-report-chart' ).attr( 'aria-busy', 'true' );
         $.post( bcsSmtpData.ajaxurl, {
                 action     : 'bcs_smtp_get_email_report',
                 nonce      : bcsSmtpData.nonce,
-                date_range : $( '#bcs-smtp-report-date-range' ).val(),
+                date_range : reportRange,
         }, function ( r ) {
-                if ( ! r || ! r.success ) { return; }
-                var d = r.data;
-
-                $( '#bcs-smtp-report-success' ).text( d.summary.success );
-                $( '#bcs-smtp-report-failed' ).text( d.summary.failed );
-                $( '#bcs-smtp-report-unconfirmed' ).text( d.summary.unconfirmed );
-                $( '#bcs-smtp-report-total' ).text( d.summary.total );
-
-                updateReportChart( d.chart );
-        } );
-}
-
-function updateReportChart( chartData ) {
-        var ctx = document.getElementById( 'bcs-smtp-report-chart' );
-        if ( ! ctx ) { return; }
-
-        // Filter out days where all values are 0 (no email activity).
-        var filteredLabels = [], filteredSuccess = [], filteredFailed = [], filteredUnconf = [];
-        for ( var fi = 0; fi < chartData.labels.length; fi++ ) {
-                if ( chartData.success[ fi ] > 0 || chartData.failed[ fi ] > 0 || chartData.unconfirmed[ fi ] > 0 ) {
-                        filteredLabels.push( chartData.labels[ fi ] );
-                        filteredSuccess.push( chartData.success[ fi ] );
-                        filteredFailed.push( chartData.failed[ fi ] );
-                        filteredUnconf.push( chartData.unconfirmed[ fi ] );
+                $chart.removeAttr( 'aria-busy' );
+                if ( r && r.success ) { renderReport( r.data.summary, r.data.chart ); }
+        } );
+}
+
+function initReportChart() {
+        var el = document.getElementById( 'bcs-smtp-report-chart' );
+        if ( ! el || reportChart ) { return; }
+        var data;
+        try { data = JSON.parse( el.getAttribute( 'data-chart' ) ); } catch ( e ) { return; }
+        reportChart = new LineChart( el );
+        reportChart.render( data, window.matchMedia && window.matchMedia( '(prefers-reduced-motion: reduce)' ).matches );
+        updateHighlights( data );
+        showRecipients( $( '#bcs-smtp-highlights [data-hl="recipients"]' ).data( 'initial' ) );
+}
+
+$( document ).on( 'change', '.bcs-smtp-rp-range', function () {
+        reportRange = $( this ).val();
+        $( '#bcs-smtp-report-period' ).text( fmt( T( 'lastPeriod', 'Last %s' ), $( this ).data( 'label' ) ) );
+        loadEmailReport();
+} );
+
+$( document ).on( 'click', '#bcs-smtp-report-export', function () {
+        window.location.href = bcsSmtpData.exportUrl + '&nonce=' + encodeURIComponent( bcsSmtpData.exportNonce ) + '&date_range=' + encodeURIComponent( reportRange ) + '&status=all&search=';
+} );
+
+/* Same rule as the server: comma-separated, every entry a valid address. */
+var EMAIL_RE = /^[^\s@,]+@[^\s@,]+\.[^\s@,]{2,}$/;
+
+/* =====================================================================
+   Recipient chips (Gmail-style) — the hidden #bcs-smtp-report-emails keeps the
+   comma-separated value the save handlers and validation read.
+   ===================================================================== */
+var $chipsWrap  = $( '#bcs-smtp-report-chips' );
+var $chipList   = $chipsWrap.find( '.bcs-smtp-chip-list' );
+var $chipEntry  = $( '#bcs-smtp-report-emails-entry' );
+var $chipHidden = $( '#bcs-smtp-report-emails' );
+var CHIP_PLACEHOLDER = $chipEntry.attr( 'placeholder' ) || '';
+
+function chipValues() {
+        return String( $chipHidden.val() || '' ).split( ',' ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+}
+
+function renderChips() {
+        $chipList.empty();
+        chipValues().forEach( function ( email, i ) {
+                var ok    = EMAIL_RE.test( email );
+                var $chip = $( '<li class="bcs-smtp-chip" />' ).toggleClass( 'is-invalid', ! ok ).attr( 'data-i', i );
+                $( '<span class="bcs-smtp-chip-text" />' ).text( email ).attr( 'title', ok ? email : T( 'notAnEmail', 'Not a valid email address' ) ).appendTo( $chip );
+                $( '<button type="button" class="bcs-smtp-chip-x" />' )
+                        .attr( 'aria-label', fmt( T( 'removeEmail', 'Remove %s' ), email ) )
+                        .html( '<span class="dashicons dashicons-no-alt" aria-hidden="true"></span>' )
+                        .appendTo( $chip );
+                $chipList.append( $chip );
+        } );
+        $chipEntry.attr( 'placeholder', chipValues().length ? '' : CHIP_PLACEHOLDER );
+}
+
+function setChipValues( list ) {
+        var seen = {};
+        list = list.filter( function ( v ) {
+                var k = v.toLowerCase();
+                if ( seen[ k ] ) { return false; }
+                seen[ k ] = true;
+                return true;
+        } );
+        $chipHidden.val( list.join( ', ' ) );
+        $chipsWrap.removeClass( 'is-invalid' );
+        renderChips();
+}
+
+/* Turn whatever is typed or pasted into chips. */
+function commitChipEntry() {
+        var raw = $chipEntry.val();
+        if ( ! $.trim( raw ) ) { return; }
+        var added = raw.split( /[\s,;]+/ ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+        $chipEntry.val( '' );
+        setChipValues( chipValues().concat( added ) );
+}
+
+$chipEntry.on( 'keydown', function ( e ) {
+        if ( e.key === 'Enter' || e.key === ',' || e.key === ';' || ( e.key === ' ' && $.trim( this.value ) ) || ( e.key === 'Tab' && $.trim( this.value ) ) ) {
+                e.preventDefault();
+                commitChipEntry();
+                return;
+        }
+        if ( e.key === 'Backspace' && ! this.value ) {
+                var $last = $chipList.children().last();
+                if ( ! $last.length ) { return; }
+                if ( $last.hasClass( 'is-armed' ) ) {
+                        var vals = chipValues();
+                        vals.pop();
+                        setChipValues( vals );
+                } else {
+                        $last.addClass( 'is-armed' );
                 }
-        }
-        // Fall back to full data if nothing has activity (avoids empty chart).
-        if ( filteredLabels.length === 0 ) {
-                filteredLabels  = chartData.labels;
-                filteredSuccess = chartData.success;
-                filteredFailed  = chartData.failed;
-                filteredUnconf  = chartData.unconfirmed;
-        }
-        chartData = { labels: filteredLabels, success: filteredSuccess, failed: filteredFailed, unconfirmed: filteredUnconf };
-
-        // Resolve colours based on active theme
-        var isDark    = document.documentElement.getAttribute( 'data-bcs-smtp-theme' ) === 'dark';
-        var gridColor = isDark ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.06)';
-        var textColor = isDark ? '#94a3b8' : '#64748b';
-
-        var datasets = [
-                {
-                        label           : 'Sent',
-                        data            : chartData.success,
-                        backgroundColor : 'rgba(16,185,129,0.75)',
-                        borderColor     : '#10b981',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-                {
-                        label           : 'Failed',
-                        data            : chartData.failed,
-                        backgroundColor : 'rgba(239,68,68,0.75)',
-                        borderColor     : '#ef4444',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-                {
-                        label           : 'Unconfirmed',
-                        data            : chartData.unconfirmed,
-                        backgroundColor : 'rgba(245,158,11,0.75)',
-                        borderColor     : '#f59e0b',
-                        borderWidth     : 1,
-                        borderRadius    : 4,
-                },
-        ];
-
-        if ( reportChart ) {
-                reportChart.data.labels   = chartData.labels;
-                reportChart.data.datasets = datasets;
-                reportChart.update();
                 return;
         }
-
-        reportChart = new Chart( ctx, {
-                type : 'bar',
-                data : {
-                        labels   : chartData.labels,
-                        datasets : datasets,
-                },
-                options : {
-                        responsive          : true,
-                        maintainAspectRatio : false,
-                        interaction         : { mode: 'index', intersect: false },
-                        plugins : {
-                                legend  : { labels : { color: textColor, font: { size: 12 } } },
-                                tooltip : { mode: 'index' },
-                        },
-                        scales : {
-                                x : {
-                                        stacked   : false,
-                                        grid      : { color: gridColor },
-                                        ticks     : { color: textColor, font: { size: 11 } },
-                                },
-                                y : {
-                                        stacked    : false,
-                                        beginAtZero: true,
-                                        grid       : { color: gridColor },
-                                        ticks      : { color: textColor, font: { size: 11 }, precision: 0 },
-                                },
-                        },
-                },
-        } );
-}
-
-$( document ).on( 'change', '#bcs-smtp-report-date-range', function () {
-        loadEmailReport();
-} );
-
-/* Accordion toggle */
-$( document ).on( 'click', '.bcs-smtp-accordion-header', function () {
-        var $header = $( this );
-        var $body   = $header.next( '.bcs-smtp-accordion-body' );
-        var open    = $body.is( ':visible' );
-        $body.slideToggle( 200 );
-        $header.attr( 'aria-expanded', open ? 'false' : 'true' );
-        $header.find( '.bcs-smtp-accordion-arrow' )
-                .toggleClass( 'dashicons-arrow-down-alt2', open )
-                .toggleClass( 'dashicons-arrow-up-alt2', ! open );
-} );
-
-/* Save schedule */
+        $chipList.children().removeClass( 'is-armed' );
+} );
+$chipEntry.on( 'paste', function () { setTimeout( commitChipEntry, 0 ); } );
+$chipEntry.on( 'blur', commitChipEntry );
+$chipEntry.on( 'input', function () { $chipsWrap.removeClass( 'is-invalid' ); } );
+
+$chipList.on( 'click', '.bcs-smtp-chip-x', function () {
+        var i    = +$( this ).closest( '.bcs-smtp-chip' ).attr( 'data-i' );
+        var vals = chipValues();
+        vals.splice( i, 1 );
+        setChipValues( vals );
+        $chipEntry.trigger( 'focus' );
+} );
+$chipsWrap.on( 'click', function ( e ) {
+        if ( e.target === this || $( e.target ).is( '.bcs-smtp-chip-list' ) ) { $chipEntry.trigger( 'focus' ); }
+} );
+
+
+function checkReportEmails( required ) {
+        commitChipEntry();
+        var $f    = $( '#bcs-smtp-report-emails' );
+        var parts = $f.val().split( ',' ).map( function ( v ) { return $.trim( v ); } ).filter( Boolean );
+        var bad   = parts.filter( function ( v ) { return ! EMAIL_RE.test( v ); } );
+        var msg   = '';
+        if ( bad.length ) {
+                msg = fmt( T( 'badEmails', 'These aren’t valid email addresses: %s' ), $( '<span>' ).text( bad.join( ', ' ) ).html() );
+        } else if ( required && ! parts.length ) {
+                msg = T( 'needEmail', 'Enter at least one email address to send the report to.' );
+        }
+        $chipsWrap.toggleClass( 'is-invalid', !! msg );
+        $chipEntry.attr( 'aria-invalid', msg ? 'true' : null );
+        if ( msg ) {
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', msg );
+                $chipEntry.trigger( 'focus' );
+        }
+        return ! msg;
+}
+
+
+$( document ).on( 'change', '#bcs-smtp-report-schedule-enabled', function () {
+        $( '#bcs-smtp-report-body, #bcs-smtp-send-report-now-btn' ).prop( 'hidden', ! this.checked );
+        $( '#bcs-smtp-report-off' ).prop( 'hidden', this.checked );
+} );
+
 $( document ).on( 'click', '#bcs-smtp-save-report-schedule-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-saved"></span>Save Schedule';
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
+        var $btn = $( this );
+        if ( ! checkReportEmails( $( '#bcs-smtp-report-schedule-enabled' ).is( ':checked' ) ) ) { return; }
+        setBusy( $btn, T( 'saving' ) );
         $.post( bcsSmtpData.ajaxurl, {
                 action    : 'bcs_smtp_save_report_schedule',
@@ -368 +1094 @@
                 enabled   : $( '#bcs-smtp-report-schedule-enabled' ).is( ':checked' ) ? 1 : 0,
                 emails    : $( '#bcs-smtp-report-emails' ).val(),
-                frequency : $( '#bcs-smtp-report-frequency' ).val(),
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
+                clearBusy( $btn );
                 if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || 'Schedule saved.' );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || T( 'saved' ) );
+                        $( '#bcs-smtp-report-next-text' ).text( r.data.next || '' );
+                        if ( r.data.emails !== undefined ) { $chipHidden.val( r.data.emails ); renderChips(); }
+                        $( '#bcs-smtp-report-next' ).prop( 'hidden', ! r.data.next );
                 } else {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-/* Send report now — date_range is derived server-side from saved frequency */
-$( document ).on( 'click', '#bcs-smtp-send-report-now-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-email-alt"></span>Send Report Now';
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-        $.post( bcsSmtpData.ajaxurl, {
-                action  : 'bcs_smtp_send_report_now',
-                nonce   : bcsSmtpData.nonce,
-                emails  : $( '#bcs-smtp-report-emails' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message || 'Report sent.' );
-                } else {
-                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', ( r && r.data ) ? r.data : 'Send failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-/* =====================================================================
-   SEND TEST EMAIL TAB
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-send-test-btn', function () {
-        var $btn = $( this );
-        var to   = $( '#bcs-smtp-test-to' ).val().trim();
-        if ( ! to ) {
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Please enter a recipient email address.' );
-                return;
-        }
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_send_test',
-                nonce  : bcsSmtpData.nonce,
-                to     : to,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-email-alt"></span> Send Test Email' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-test-msg', 'success', r.data.message );
-                } else {
-                        var msg = ( r && r.data )
-                                ? ( r.data.failure_type ? '<strong>' + r.data.failure_type + ':</strong> ' + r.data.message : r.data.message )
-                                : 'Test failed.';
-                        showInlineMsg( '#bcs-smtp-test-msg', 'error', msg );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-email-alt"></span> Send Test Email' );
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-$( document ).on( 'click', '#bcs-smtp-check-now-btn', function () {
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', failText( xhr ) );
+        } );
+} );
+
+/* Send report now — date_range is derived server-side from the saved frequency */
+$( document ).on( 'click', '#bcs-smtp-send-report-now-btn', function () {
         var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Running…' );
-
+        if ( ! checkReportEmails( true ) ) { return; }
+        setBusy( $btn, T( 'sending' ) );
         $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_check_now',
+                action : 'bcs_smtp_send_report_now',
                 nonce  : bcsSmtpData.nonce,
+                emails : $( '#bcs-smtp-report-emails' ).val(),
         }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-update"></span> Run Health Check Now' );
+                clearBusy( $btn );
                 if ( r && r.success ) {
-                        var type = r.data.success ? 'success' : 'error';
-                        showInlineMsg( '#bcs-smtp-test-msg', type, r.data.message );
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'success', r.data.message );
+                } else {
+                        showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
                 }
         } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-update"></span> Run Health Check Now' );
-                showInlineMsg( '#bcs-smtp-test-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
+                clearBusy( $btn );
+                showInlineMsg( '#bcs-smtp-report-schedule-msg', 'error', failText( xhr ) );
         } );
 } );
 
 /* =====================================================================
-   ALERTS TAB: toggles + channel
+   ALERTS
    ===================================================================== */
-
-/* Monitor toggle → accordion */
-$( document ).on( 'change', '#bcs-smtp-monitor-enabled', function () {
-        $( '#bcs-smtp-monitor-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Alert channel toggle → accordion */
 $( document ).on( 'change', '#bcs-smtp-alert-channel-enabled', function () {
         $( '#bcs-smtp-alert-channel-accordion' ).toggleClass( 'open', this.checked );
-} );
-
-/* Channel radio → show only the matching webhook field, preserve both values */
+        $( '#bcs-smtp-alerts-off' ).prop( 'hidden', this.checked );
+} );
+
+/* Channel list: each channel has its own switch; its webhook field opens under its row.
+   One row is open at a time. Every URL is kept and saved, even for channels that are off. */
+var WEBHOOK_ROWS  = { slack: 'slack', teams: 'teams', google_chat: 'google-chat', discord: 'discord', custom: 'custom' };
+var activeWebhook = null;
+
+function webhookInput( key ) {
+        return $( '#bcs-smtp-' + WEBHOOK_ROWS[ key ] + '-webhook-url' );
+}
+
+function channelState( box ) {
+        if ( ! box.checked ) { return 'off'; }
+        var url = $.trim( webhookInput( box.value ).val() );
+        return ! url ? 'missing' : ( webhookProblem( box.value, url ) ? 'bad' : 'ready' );
+}
+
 function syncWebhookFields() {
-        var ch = $( '.bcs-smtp-channel-radio:checked' ).val();
-        $( '#bcs-smtp-slack-webhook-row' ).toggle( ch === 'slack' );
-        $( '#bcs-smtp-teams-webhook-row' ).toggle( ch === 'teams' );
-        $( '#bcs-smtp-google-chat-webhook-row' ).toggle( ch === 'google_chat' );
-        $( '#bcs-smtp-discord-webhook-row' ).toggle( ch === 'discord' );
-        $( '#bcs-smtp-custom-webhook-row' ).toggle( ch === 'custom' );
-}
-$( document ).on( 'change', '.bcs-smtp-channel-radio', syncWebhookFields );
-
-
-/* Save monitor settings */
-$( document ).on( 'click', '#bcs-smtp-save-monitor-btn', function () {
-        var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action            : 'bcs_smtp_save_monitor',
-                nonce             : bcsSmtpData.nonce,
-                monitor_enabled   : $( '#bcs-smtp-monitor-enabled' ).is( ':checked' ) ? 1 : 0,
-                check_interval    : $( '#bcs-smtp-check-interval' ).val(),
-                failure_threshold : $( '#bcs-smtp-failure-threshold' ).val(),
-                max_alert_count   : $( '#bcs-smtp-max-alert-count' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Monitor Settings' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-monitor-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-monitor-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Monitor Settings' );
-                showInlineMsg( '#bcs-smtp-monitor-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-/* Save alert channel settings */
-$( document ).on( 'click', '#bcs-smtp-save-alerts-btn', function () {
-        var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action               : 'bcs_smtp_save_alerts',
-                nonce                : bcsSmtpData.nonce,
-                alert_channel_enabled: $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ? 1 : 0,
-                alert_channel        : $( '.bcs-smtp-channel-radio:checked' ).val(),
-                slack_webhook_url    : $( '#bcs-smtp-slack-webhook-url' ).val(),
-                teams_webhook_url    : $( '#bcs-smtp-teams-webhook-url' ).val(),
-                google_chat_webhook_url: $( '#bcs-smtp-google-chat-webhook-url' ).val(),
-                discord_webhook_url  : $( '#bcs-smtp-discord-webhook-url' ).val(),
-                custom_webhook_url   : $( '#bcs-smtp-custom-webhook-url' ).val(),
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Alert Settings' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-saved"></span> Save Alert Settings' );
-                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
-} );
-
-/* Send test alert */
+        var $boxes = $( '.bcs-smtp-channel-radio' );
+        // An open row stays open only while its channel is on.
+        if ( activeWebhook && ! $boxes.filter( '[value="' + activeWebhook + '"]' ).is( ':checked' ) ) {
+                activeWebhook = null;
+        }
+        var on = 0;
+        $boxes.each( function () {
+                var state = channelState( this );
+                var open  = this.value === activeWebhook;
+                var $row  = $( this ).closest( '.bcs-smtp-ch' );
+                on += this.checked ? 1 : 0;
+                $row.attr( 'data-state', state ).toggleClass( 'is-open', open );
+                $row.find( '.bcs-smtp-ch-main' ).attr( 'aria-expanded', open ? 'true' : 'false' );
+                $row.find( '.bcs-smtp-ch-pill' ).text( { ready: T( 'chReady' ), missing: T( 'chAddUrl' ), bad: T( 'chCheckUrl' ), off: T( 'chOff' ) }[ state ] );
+                $( '#bcs-smtp-' + WEBHOOK_ROWS[ this.value ] + '-webhook-row' ).prop( 'hidden', ! open );
+        } );
+        $( '#bcs-smtp-ch-count' ).text( fmt( T( 'chCount' ), on, $boxes.length ) );
+}
+
+/* Same host rules the server enforces, so a wrong paste is caught before saving */
+var WEBHOOK_HOSTS = {
+        slack       : /^hooks\.slack\.com$/,
+        teams       : /(^|\.)(office\.com|logic\.azure\.com|api\.powerplatform\.com)$/,
+        google_chat : /^chat\.googleapis\.com$/,
+        discord     : /(^|\.)discord(app)?\.com$/
+};
+
+function webhookProblem( key, url ) {
+        var u;
+        try { u = new URL( url ); } catch ( e ) { return T( 'urlHttps' ); }
+        if ( 'https:' !== u.protocol ) { return T( 'urlHttps' ); }
+        var host = u.hostname.toLowerCase();
+        if ( 'custom' === key ) {
+                return ( 'localhost' === host || /^[\d.]+$/.test( host ) || -1 !== host.indexOf( ':' ) || '[' === host.charAt( 0 ) ) ? T( 'urlPublic' ) : '';
+        }
+        return WEBHOOK_HOSTS[ key ].test( host ) ? '' : fmt( T( 'urlHost' ), $( '.bcs-smtp-channel-radio[value="' + key + '"]' ).data( 'label' ) );
+}
+
+/* Show a field's problem; live once shown, so it clears the moment the URL is fixed */
+function checkWebhookField( input, force ) {
+        var $row = $( input ).closest( '.bcs-smtp-webhook' );
+        var $err = $row.find( '.bcs-smtp-webhook-err' );
+        if ( ! force && $err.prop( 'hidden' ) ) { return; }
+        var url  = $.trim( input.value );
+        var msg  = url ? webhookProblem( $row.data( 'channel' ), url ) : '';
+        $err.text( msg ).prop( 'hidden', ! msg );
+        $( input ).attr( 'aria-invalid', msg ? 'true' : null );
+}
+$( document ).on( 'blur', '.bcs-smtp-webhook input', function () { checkWebhookField( this, true ); } );
+$( document ).on( 'input', '.bcs-smtp-webhook input', function () { checkWebhookField( this, false ); } );
+
+/* Unsaved changes: the test alert uses saved settings, so it waits for a save */
+function setAlertsDirty( dirty ) {
+        var live = $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) && $( '.bcs-smtp-channel-radio:checked' ).length > 0;
+        $( '#bcs-smtp-alerts-unsaved' ).prop( 'hidden', ! dirty );
+        $( '#bcs-smtp-test-alert-btn' ).prop( 'disabled', dirty || ! live ).attr( 'title', dirty ? T( 'saveFirst' ) : null );
+}
+$( document ).on( 'change input', '.bcs-smtp-alerts-card input', function () { setAlertsDirty( true ); } );
+
+/* Edits live only in the page until saved, so warn before leaving with unsaved changes */
+$( window ).on( 'beforeunload', function ( e ) {
+        if ( $( '.bcs-smtp-unsaved' ).filter( function () { return ! this.hidden; } ).length ) {
+                e.preventDefault();
+                return '';
+        }
+} );
+
+function showWebhook( key, focus ) {
+        activeWebhook = key;
+        syncWebhookFields();
+        if ( focus ) { webhookInput( key ).trigger( 'focus' ); }
+}
+
+/* The row itself: a channel that's off is switched on; one that's on opens or closes its field */
+$( document ).on( 'click', '.bcs-smtp-ch-main', function () {
+        var box = $( this ).closest( '.bcs-smtp-ch' ).find( '.bcs-smtp-channel-radio' )[ 0 ];
+        if ( ! box.checked ) {
+                box.checked = true;
+                $( box ).trigger( 'change' );
+                setAlertsDirty( true );
+                return;
+        }
+        if ( activeWebhook === box.value ) {
+                activeWebhook = null;
+                syncWebhookFields();
+        } else {
+                showWebhook( box.value, false );
+        }
+} );
+
+/* Typing a URL updates its row's status straight away */
+$( document ).on( 'input', '.bcs-smtp-webhook input', syncWebhookFields );
+
+$( document ).on( 'change', '.bcs-smtp-channel-radio', function () {
+        if ( this.checked ) {
+                showWebhook( this.value, ! $.trim( webhookInput( this.value ).val() ) );
+        } else {
+                syncWebhookFields();
+        }
+} );
+
+function simpleSave( btnSel, msgSel, data, onSaved ) {
+        $( document ).on( 'click', btnSel, function () {
+                var $btn = $( this );
+                setBusy( $btn, T( 'saving' ) );
+                $.post( bcsSmtpData.ajaxurl, $.extend( { nonce: bcsSmtpData.nonce }, data() ) )
+                        .done( function ( r ) {
+                                if ( r && r.success ) {
+                                        showInlineMsg( msgSel, 'success', ( r.data && r.data.message ) || T( 'saved' ) );
+                                        if ( onSaved ) { onSaved( r ); }
+                                } else {
+                                        showInlineMsg( msgSel, 'error', errorText( r, T( 'saveFailed' ) ) );
+                                }
+                        } )
+                        .fail( function ( xhr ) { showInlineMsg( msgSel, 'error', failText( xhr ) ); } )
+                        .always( function () { clearBusy( $btn ); } );
+        } );
+}
+
+simpleSave( '#bcs-smtp-save-alerts-btn', '#bcs-smtp-alerts-msg', function () {
+        if ( $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ) {
+                $( '.bcs-smtp-channel-radio:checked' ).each( function () {
+                        var url = $.trim( webhookInput( this.value ).val() );
+                        if ( ! url || webhookProblem( this.value, url ) ) {
+                                showWebhook( this.value, true );
+                                checkWebhookField( webhookInput( this.value )[0], true );
+                                return false;
+                        }
+                } );
+        }
+        return {
+                action                  : 'bcs_smtp_save_alerts',
+                alert_channel_enabled   : $( '#bcs-smtp-alert-channel-enabled' ).is( ':checked' ) ? 1 : 0,
+                alert_channels          : $( '.bcs-smtp-channel-radio:checked' ).map( function () { return this.value; } ).get(),
+                slack_webhook_url       : $( '#bcs-smtp-slack-webhook-url' ).val(),
+                teams_webhook_url       : $( '#bcs-smtp-teams-webhook-url' ).val(),
+                google_chat_webhook_url : $( '#bcs-smtp-google-chat-webhook-url' ).val(),
+                discord_webhook_url     : $( '#bcs-smtp-discord-webhook-url' ).val(),
+                custom_webhook_url      : $( '#bcs-smtp-custom-webhook-url' ).val(),
+        };
+}, function () { setAlertsDirty( false ); } );
+
 $( document ).on( 'click', '#bcs-smtp-test-alert-btn', function () {
         var $btn = $( this );
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Sending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action : 'bcs_smtp_send_test_alert',
-                nonce  : bcsSmtpData.nonce,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-megaphone"></span> Send Test Alert' );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
-                } else {
-                        showInlineMsg( '#bcs-smtp-alerts-msg', 'error', ( r && r.data ) ? r.data : 'Alert dispatch failed.' );
-                }
-        } ).fail( function ( xhr ) {
-                $btn.prop( 'disabled', false ).html( '<span class="dashicons dashicons-megaphone"></span> Send Test Alert' );
-                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', 'Request failed (HTTP ' + xhr.status + ').' );
-        } );
+        setBusy( $btn, T( 'sending' ) );
+        $.post( bcsSmtpData.ajaxurl, { action: 'bcs_smtp_send_test_alert', nonce: bcsSmtpData.nonce } )
+                .done( function ( r ) {
+                        if ( r && r.success ) {
+                                showInlineMsg( '#bcs-smtp-alerts-msg', 'success', r.data.message );
+                        } else {
+                                showInlineMsg( '#bcs-smtp-alerts-msg', 'error', errorText( r, T( 'saveFailed' ) ) );
+                        }
+                } )
+                .fail( function ( xhr ) { showInlineMsg( '#bcs-smtp-alerts-msg', 'error', failText( xhr ) ); } )
+                .always( function () { clearBusy( $btn ); } );
 } );
 
 /* =====================================================================
-   SETTINGS TAB: Change Password button
+   SETTINGS
    ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-change-pw-btn', function () {
-        $( '#bcs-smtp-pw-display' ).hide();
-        $( '#bcs-smtp-pw-cancel-row' ).show();
-        $( '#bcs-smtp-pw-input' ).show();
-        $( '#bcs-smtp-smtp-password' ).val( '' ).focus();
-        $( '#bcs-smtp-pw-status' )
-                .text( 'Enter a new password — leave blank to keep the existing one.' )
-                .css( 'color', 'var(--bcs-smtp-text-3)' );
-} );
-
-$( document ).on( 'click', '#bcs-smtp-cancel-pw-btn', function ( e ) {
-        e.preventDefault();
-        $( '#bcs-smtp-pw-input' ).hide();
-        $( '#bcs-smtp-pw-cancel-row' ).hide();
-        $( '#bcs-smtp-pw-display' ).css( 'display', 'flex' );
-        $( '#bcs-smtp-smtp-password' ).val( '' );
-        $( '#bcs-smtp-pw-status' )
-                .text( '✓ Password saved — leave blank to keep it.' )
-                .css( 'color', 'var(--bcs-smtp-emerald)' );
-} );
-
-/* Show/hide the typed password */
-$( document ).on( 'click', '#bcs-smtp-toggle-pw-btn', function () {
-        var $btn   = $( this );
-        var $input = $( '#bcs-smtp-smtp-password' );
-        var $icon  = $btn.find( '.dashicons' );
-        var hidden = $input.attr( 'type' ) === 'password';
-
-        $input.attr( 'type', hidden ? 'text' : 'password' );
-        $icon.toggleClass( 'dashicons-visibility', ! hidden ).toggleClass( 'dashicons-hidden', hidden );
-        $btn.attr( 'aria-label', hidden ? 'Hide password' : 'Show password' );
-} );
-
-/* =====================================================================
-   RESEND FAILED EMAIL (Email Log tab)
-   ===================================================================== */
-$( document ).on( 'click', '.bcs-smtp-resend-btn', function () {
-        var $btn   = $( this );
-        var logId  = $btn.data( 'log-id' );
-        var orig   = $btn.html();
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Resending…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action: 'bcs_smtp_resend_email',
-                nonce : bcsSmtpData.nonce,
-                log_id: logId,
-        } ).done( function ( r ) {
-                if ( r && r.success ) {
-                        // Remove the button in place rather than reloading the table — the original
-                        // row's status stays 'failed' (the resend created a separate log entry), so a
-                        // full reload would just show the same Resend button again.
-                        $btn.replaceWith( '<span class="bcs-smtp-badge bcs-smtp-badge-success">' +
-                                '<span class="dashicons dashicons-yes"></span> Resent</span>' );
-                } else {
-                        $btn.prop( 'disabled', false ).html( orig );
-                        window.alert( ( r && r.data ) ? r.data : 'Resend failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( orig );
-                window.alert( 'Request failed.' );
-        } );
-} );
-
-/* =====================================================================
-   RESEND SETTINGS (Config tab)
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-save-resend-btn', function () {
-        var $btn = $( this );
-        var orig = $btn.html();
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-        $.post( bcsSmtpData.ajaxurl, {
-                action            : 'bcs_smtp_save_resend_settings',
-                nonce             : bcsSmtpData.nonce,
-                store_failed_body : $( '#bcs-smtp-store-failed-body' ).is( ':checked' ) ? 1 : 0,
-                retention_days    : $( '#bcs-smtp-failed-body-retention' ).val(),
-        } ).done( function ( r ) {
-                showInlineMsg( '#bcs-smtp-resend-settings-msg', r && r.success ? 'success' : 'error', ( r && r.data && r.data.message ) ? r.data.message : ( ( r && r.data ) ? r.data : 'Save failed.' ) );
-        } ).fail( function () {
-                showInlineMsg( '#bcs-smtp-resend-settings-msg', 'error', 'Request failed.' );
-        } ).always( function () {
-                $btn.prop( 'disabled', false ).html( orig );
-        } );
-} );
-
-/* =====================================================================
-   Inline message helper
-   ===================================================================== */
-function showInlineMsg( selector, type, msg ) {
-        var icons = { success: 'yes-alt', error: 'dismiss', warning: 'warning', info: 'info-outline' };
-        var $el   = $( selector );
-        $el.css( { display: 'block', width: '100%' } ).html(
-                '<div class="bcs-smtp-alert bcs-smtp-alert-' + type + '" style="margin-top:0;width:100%;">' +
-                '<span class="dashicons dashicons-' + icons[ type ] + '"></span>' +
-                '<div class="bcs-smtp-alert-content">' + msg + '</div></div>'
-        );
-        setTimeout( function () {
-                $el.fadeOut( 400, function () { $el.empty().show().css( 'display', 'none' ); } );
-        }, 5000 );
-}
-
-
-/* =====================================================================
-   EMAIL LOG — Export CSV
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-export-csv-btn', function ( e ) {
-        e.preventDefault();
-        var url = bcsSmtpData.exportUrl
-                + '&nonce='      + encodeURIComponent( bcsSmtpData.exportNonce )
-                + '&date_range=' + encodeURIComponent( $( '#bcs-smtp-log-date-range' ).val() )
-                + '&status='     + encodeURIComponent( $( '#bcs-smtp-log-status' ).val() )
-                + '&search='     + encodeURIComponent( $( '#bcs-smtp-log-search' ).val() );
-        window.location.href = url;
-} );
-
-/* =====================================================================
-   EMAIL LOG — Log Retention / Auto-prune
-   ===================================================================== */
-$( document ).on( 'click', '#bcs-smtp-save-log-prune-btn', function () {
-        var $btn    = $( this );
-        var btnHtml = '<span class="dashicons dashicons-saved"></span>Save Retention Settings';
-        var mode    = $( '.bcs-smtp-prune-radio:checked' ).val();
-        var value   = mode === 'days'    ? $( '#bcs-smtp-prune-days' ).val()
-                    : mode === 'records' ? $( '#bcs-smtp-prune-records' ).val()
-                    : 30;
-
-        $btn.prop( 'disabled', true ).html( '<span class="dashicons dashicons-update bcs-smtp-spinning"></span> Saving…' );
-
-        $.post( bcsSmtpData.ajaxurl, {
-                action      : 'bcs_smtp_save_log_prune',
-                nonce       : bcsSmtpData.nonce,
-                prune_mode  : mode,
-                prune_value : value,
-        }, function ( r ) {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                if ( r && r.success ) {
-                        showInlineMsg( '#bcs-smtp-log-prune-msg', 'success', r.data.message || 'Saved.' );
-                } else {
-                        showInlineMsg( '#bcs-smtp-log-prune-msg', 'error', ( r && r.data ) ? r.data : 'Save failed.' );
-                }
-        } ).fail( function () {
-                $btn.prop( 'disabled', false ).html( btnHtml );
-                showInlineMsg( '#bcs-smtp-log-prune-msg', 'error', 'Request failed.' );
-        } );
-} );
-
-
 /* =====================================================================
    Init
    ===================================================================== */
 $( function () {
+        // Browsers restore form state on reload, which can show a switch or field that no longer
+        // matches what is saved. Put every control back to the value the server rendered.
+        $( '.bcs-smtp-wrap' ).find( 'input, select, textarea' ).each( function () {
+                if ( this.type === 'checkbox' || this.type === 'radio' ) {
+                        this.checked = this.defaultChecked;
+                } else if ( this.tagName === 'SELECT' ) {
+                        var def = $( this ).find( 'option' ).filter( function () { return this.defaultSelected; } );
+                        this.selectedIndex = def.length ? def.index() : 0;
+                } else if ( this.type !== 'hidden' && this.type !== 'password' ) {
+                        this.value = this.defaultValue;
+                }
+        } );
         syncWebhookFields();
-
-        // Load the active panel's data if it's a data panel
-        var activePanel = getStoredTab();
-        if ( activePanel === 'email-log' ) {
-                emailLogLoaded = true;
-                loadEmailLog();
-        }
-        if ( activePanel === 'email-report' ) {
-                emailReportLoaded = true;
-                loadEmailReport();
+        updateServerSummary();
+        renderChips();
+        syncConnectionDot();
+        syncPickedProvider();
+        // The single-email page has no tabs; leave the remembered tab and its URL alone there.
+        if ( $( '.bcs-smtp-tab' ).length ) {
+                var hash   = ( window.location.hash || '' ).replace( '#', '' );
+                var stored = store.get( TAB_KEY );
+                setActiveTab( hash && $( '.bcs-smtp-tab[data-panel="' + hash + '"]' ).length ? hash : ( stored || 'overview' ) );
         }
 } );

bcs-smtp-manager/trunk/bcs-smtp-manager.php

@@ -4 +4 @@
  * Plugin URI: https://bytecorestack.com/plugins/smtp-manager/
  * Description: Send WordPress email through any authenticated SMTP server, log every message, and get an alert on Slack, Microsoft Teams, Google Chat, or Discord the moment delivery fails.
- * Version: 1.2.1
+ * Version: 1.3.0
  * Author: ByteCore Stack
  * Author URI: https://bytecorestack.com/
@@ -21 +21 @@
 
 // Define plugin constants
-define( 'BCS_SMTP_VERSION',         '1.2.1' );
+define( 'BCS_SMTP_VERSION',         '1.3.0' );
 define( 'BCS_SMTP_PLUGIN_DIR',      plugin_dir_path( __FILE__ ) );
 define( 'BCS_SMTP_PLUGIN_URL',      plugin_dir_url( __FILE__ ) );
 define( 'BCS_SMTP_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
 
-// Monitor/alert option names — defined once so the read side and write side can
-// never drift apart (a literal-string mismatch caused the monitor toggle to silently
-// no-op in 1.1.0; see class-bcs-smtp-monitor.php).
-define( 'BCS_SMTP_OPT_MONITOR_ENABLED',       'bcs_monitor_enabled' );
-define( 'BCS_SMTP_OPT_CHECK_INTERVAL',        'bcs_check_interval' );
-define( 'BCS_SMTP_OPT_FAILURE_THRESHOLD',     'bcs_failure_threshold' );
+// Monitor/alert option names — defined once so the read side and write side can never drift apart.
 define( 'BCS_SMTP_OPT_CONSECUTIVE_FAILURES',  'bcs_consecutive_failures' );
 define( 'BCS_SMTP_OPT_LAST_CHECK',            'bcs_last_check' );
@@ -42 +37 @@
 define( 'BCS_SMTP_OPT_DISCORD_WEBHOOK_URL',     'bcs_discord_webhook_url' );
 define( 'BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL',      'bcs_custom_webhook_url' );
-define( 'BCS_SMTP_OPT_MAX_ALERT_COUNT',       'bcs_max_alert_count' );
 define( 'BCS_SMTP_OPT_ALERT_SENT_COUNT',      'bcs_alert_sent_count' );
 
-// Resend feature — failed-email body storage is opt-in and retained only briefly.
-define( 'BCS_SMTP_OPT_STORE_FAILED_BODY',           'bcs_store_failed_body' );
-define( 'BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS',  'bcs_failed_body_retention_days' );
+// The email log keeps this many days; reports and charts are limited to the same window.
+define( 'BCS_SMTP_LOG_RETENTION_DAYS', 90 );
+
+// Bumped whenever the log table's columns change, so dbDelta runs again on existing sites.
+define( 'BCS_SMTP_DB_VERSION', '1.3.0.1' );
+
+// Health checks are always on once SMTP is set up, with a fixed policy.
+define( 'BCS_SMTP_CHECK_INTERVAL_MINUTES', 15 ); // Minutes between checks.
+define( 'BCS_SMTP_FAILURE_THRESHOLD', 1 );       // Alert on the first failed check.
+define( 'BCS_SMTP_MAX_ALERTS_PER_OUTAGE', 1 );   // One alert until mail recovers.
+
+// Random secret the SMTP password is encrypted with (see BCS_SMTP_Mailer::get_crypto_key()).
+define( 'BCS_SMTP_OPT_CRYPTO_KEY', 'bcs_smtp_crypto_key' );
 
 // Load required files
@@ -62 +66 @@
 }
 
-// Settings link on the Plugins page.
-if ( ! function_exists( 'bcs_smtp_plugin_action_links' ) ) {
-        function bcs_smtp_plugin_action_links( $links ) {
-                $settings = '<a href="' . esc_url( admin_url( 'options-general.php?page=bcs-smtp-manager' ) ) . '">' . __( 'Settings', 'bcs-smtp-manager' ) . '</a>';
-                array_unshift( $links, $settings );
-                return $links;
-        }
-        add_filter( 'plugin_action_links_' . BCS_SMTP_PLUGIN_BASENAME, 'bcs_smtp_plugin_action_links' );
-}
-
-if ( ! function_exists( 'bcs_smtp_init' ) ) {
-        /**
-         * Initialize the plugin.
-         */
-        function bcs_smtp_init() {
-                $plugin = new BCS_SMTP_Core();
-                $plugin->run();
-        }
-        add_action( 'plugins_loaded', 'bcs_smtp_init' );
-}
-
-if ( ! function_exists( 'bcs_smtp_activate' ) ) {
-        /**
-         * Activation hook — creates tables and sets default options.
-         *
-         * @since 1.0
-         */
-        function bcs_smtp_activate() {
-                $db = new BCS_SMTP_DB();
-                $db->create_tables();
-
-                // SMTP connection settings
-                add_option( 'bcs_smtp_enabled',           false );
-                add_option( 'bcs_from_email',             get_option( 'admin_email' ) );
-                add_option( 'bcs_from_name',              get_option( 'blogname' ) );
-                add_option( 'bcs_smtp_host',              '' );
-                add_option( 'bcs_smtp_encryption',        'tls' );
-                add_option( 'bcs_smtp_port',              587 );
-                add_option( 'bcs_auto_tls',               true );
-                add_option( 'bcs_smtp_auth',              true );
-                add_option( 'bcs_smtp_username',          '' );
-                add_option( 'bcs_smtp_password',          '' );
-
-                // Monitoring settings
-                add_option( BCS_SMTP_OPT_MONITOR_ENABLED,      false );
-                add_option( BCS_SMTP_OPT_CHECK_INTERVAL,       5 );
-                add_option( BCS_SMTP_OPT_FAILURE_THRESHOLD,    2 );
-                add_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
-                add_option( BCS_SMTP_OPT_LAST_CHECK,           0 );
-                add_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS,   null );
-
-                // Alert channel settings
-                add_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
-                add_option( BCS_SMTP_OPT_ALERT_CHANNEL,         'none' );
-                add_option( 'bcs_alert_webhook_url',            '' );
-                add_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        '' );
-                add_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        '' );
-                add_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL,  '' );
-                add_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,      '' );
-                add_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,       '' );
-                add_option( BCS_SMTP_OPT_MAX_ALERT_COUNT,       0 );
-                add_option( BCS_SMTP_OPT_ALERT_SENT_COUNT,      0 );
-
-                // Migrate old single webhook URL to per-channel options.
-                $old_url = get_option( 'bcs_alert_webhook_url', '' );
-                $channel = get_option( 'bcs_alert_channel', 'none' );
-                if ( ! empty( $old_url ) ) {
-                        if ( 'slack' === $channel && ! get_option( 'bcs_slack_webhook_url' ) ) {
-                                update_option( 'bcs_slack_webhook_url', $old_url );
-                        } elseif ( 'teams' === $channel && ! get_option( 'bcs_teams_webhook_url' ) ) {
-                                update_option( 'bcs_teams_webhook_url', $old_url );
-                        }
+/**
+ * Settings link on the Plugins page.
+ *
+ * @param  string[] $links
+ * @return string[]
+ */
+function bcs_smtp_plugin_action_links( $links ) {
+        $settings = '<a href="' . esc_url( admin_url( 'options-general.php?page=bcs-smtp-manager' ) ) . '">' . esc_html__( 'Settings', 'bcs-smtp-manager' ) . '</a>';
+        array_unshift( $links, $settings );
+        return $links;
+}
+add_filter( 'plugin_action_links_' . BCS_SMTP_PLUGIN_BASENAME, 'bcs_smtp_plugin_action_links' );
+
+/**
+ * Initialize the plugin.
+ */
+function bcs_smtp_init() {
+        $plugin = new BCS_SMTP_Core();
+        $plugin->run();
+}
+add_action( 'plugins_loaded', 'bcs_smtp_init' );
+
+/**
+ * Activation hook — creates tables and sets default options.
+ *
+ * @since 1.0
+ */
+function bcs_smtp_activate() {
+        $db = new BCS_SMTP_DB();
+        $db->create_tables();
+
+        // SMTP connection settings
+        add_option( 'bcs_smtp_enabled',           false );
+        add_option( 'bcs_from_email',             get_option( 'admin_email' ) );
+        add_option( 'bcs_from_name',              get_option( 'blogname' ) );
+        add_option( 'bcs_smtp_host',              '' );
+        add_option( 'bcs_smtp_encryption',        'tls' );
+        add_option( 'bcs_smtp_port',              587 );
+        add_option( 'bcs_auto_tls',               true );
+        add_option( 'bcs_smtp_auth',              true );
+        add_option( 'bcs_smtp_username',          '' );
+        add_option( 'bcs_smtp_password',          '' );
+
+        // Monitoring settings
+        add_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, 0 );
+        add_option( BCS_SMTP_OPT_LAST_CHECK,           0 );
+        add_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS,   null );
+
+        // Alert channel settings
+        add_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false );
+        add_option( BCS_SMTP_OPT_ALERT_CHANNEL,         'none' );
+        add_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL,        '' );
+        add_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL,        '' );
+        add_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL,  '' );
+        add_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL,      '' );
+        add_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL,       '' );
+        add_option( BCS_SMTP_OPT_ALERT_SENT_COUNT,      0 );
+
+        // Scheduled report settings (sent on the 1st of each month).
+        add_option( 'bcs_report_schedule_enabled',    false );
+        add_option( 'bcs_report_emails',              '' );
+}
+register_activation_hook( __FILE__, 'bcs_smtp_activate' );
+
+/**
+ * Deactivation hook — stops the scheduled checks, pruning and reports. They are booked again
+ * on the next page load after the plugin is reactivated.
+ */
+function bcs_smtp_deactivate() {
+        foreach ( array( 'bcs_smtp_health_check', 'bcs_smtp_prune_log', 'bcs_smtp_send_report' ) as $bcs_smtp_hook ) {
+                wp_clear_scheduled_hook( $bcs_smtp_hook );
+        }
+}
+register_deactivation_hook( __FILE__, 'bcs_smtp_deactivate' );
+
+/**
+ * One-time migration from 1.0: copy the old single webhook URL into the per-channel options.
+ */
+function bcs_smtp_migrate_webhook_options() {
+        if ( get_option( 'bcs_smtp_migrated_v2' ) ) {
+                return;
+        }
+        $bcs_smtp_old_url = get_option( 'bcs_alert_webhook_url', '' );
+        $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
+        if ( ! empty( $bcs_smtp_old_url ) ) {
+                if ( 'slack' === $bcs_smtp_channel && ! get_option( 'bcs_slack_webhook_url' ) ) {
+                        update_option( 'bcs_slack_webhook_url', $bcs_smtp_old_url );
+                } elseif ( 'teams' === $bcs_smtp_channel && ! get_option( 'bcs_teams_webhook_url' ) ) {
+                        update_option( 'bcs_teams_webhook_url', $bcs_smtp_old_url );
                 }
-
-                // Scheduled report settings
-                add_option( 'bcs_report_schedule_enabled',    false );
-                add_option( 'bcs_report_emails',              '' );
-                add_option( 'bcs_report_frequency',           'weekly' );
-
-                add_option( 'bcs_smtp_snapshot',              array() );
-
-                // Log retention / auto-prune settings
-                add_option( 'bcs_log_prune_mode',  'disabled' );
-                add_option( 'bcs_log_prune_value', 30 );
-
-                // Resend feature — opt-in, off by default.
-                add_option( BCS_SMTP_OPT_STORE_FAILED_BODY,          false );
-                add_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
-
-                flush_rewrite_rules();
-        }
-        register_activation_hook( __FILE__, 'bcs_smtp_activate' );
-}
-
-if ( ! function_exists( 'bcs_smtp_deactivate' ) ) {
-        /**
-         * Deactivation hook.
-         */
-        function bcs_smtp_deactivate() {
-                $timestamp = wp_next_scheduled( 'bcs_smtp_health_check' );
-                if ( $timestamp ) {
-                        wp_unschedule_event( $timestamp, 'bcs_smtp_health_check' );
-                }
-                flush_rewrite_rules();
-        }
-        register_deactivation_hook( __FILE__, 'bcs_smtp_deactivate' );
-}
-
-// One-time migration: copy old single webhook URL into per-channel options if not yet done.
-if ( ! function_exists( 'bcs_smtp_migrate_webhook_options' ) ) {
-        function bcs_smtp_migrate_webhook_options() {
-                if ( get_option( 'bcs_smtp_migrated_v2' ) ) {
-                        return;
-                }
-                $bcs_smtp_old_url = get_option( 'bcs_alert_webhook_url', '' );
-                $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
-                if ( ! empty( $bcs_smtp_old_url ) ) {
-                        if ( 'slack' === $bcs_smtp_channel ) {
-                                update_option( 'bcs_slack_webhook_url', $bcs_smtp_old_url );
-                        } elseif ( 'teams' === $bcs_smtp_channel ) {
-                                update_option( 'bcs_teams_webhook_url', $bcs_smtp_old_url );
-                        }
-                }
-                if ( false === get_option( 'bcs_max_alert_count', false ) ) {
-                        add_option( 'bcs_max_alert_count', 0 );
-                }
-                if ( false === get_option( 'bcs_alert_sent_count', false ) ) {
-                        add_option( 'bcs_alert_sent_count', 0 );
-                }
-                update_option( 'bcs_smtp_migrated_v2', true );
-
-                // Resend feature defaults for sites that installed before 1.2 (add_option is a no-op if already set).
-                add_option( BCS_SMTP_OPT_STORE_FAILED_BODY,          false );
-                add_option( BCS_SMTP_OPT_FAILED_BODY_RETENTION_DAYS, 7 );
-        }
-        add_action( 'plugins_loaded', 'bcs_smtp_migrate_webhook_options' );
-}
+        }
+        delete_option( 'bcs_alert_webhook_url' );
+        add_option( 'bcs_alert_sent_count', 0 );
+        update_option( 'bcs_smtp_migrated_v2', true );
+}
+add_action( 'plugins_loaded', 'bcs_smtp_migrate_webhook_options', 4 );
+
+/**
+ * One-time cleanup for 1.3: health checks, log retention and the report schedule became fixed,
+ * and the resend feature is gone. Drops the settings that no longer do anything, and the old
+ * daily/weekly report event; the monthly one is booked on init (BCS_SMTP_Core::schedule_events()).
+ * Saved email content is kept: 1.3 shows it on each email's page.
+ */
+function bcs_smtp_migrate_1_3() {
+        if ( get_option( 'bcs_smtp_migrated_1_3' ) ) {
+                return;
+        }
+        $bcs_smtp_retired = array(
+                'bcs_store_failed_body',
+                'bcs_failed_body_retention_days',
+                'bcs_log_prune_mode',
+                'bcs_log_prune_value',
+                'bcs_monitor_enabled',
+                'bcs_check_interval',
+                'bcs_failure_threshold',
+                'bcs_max_alert_count',
+                'bcs_report_frequency',
+                'bcs_smtp_snapshot',
+                'bcs_smtp_monitor_enabled', // 1.0.0
+        );
+        foreach ( $bcs_smtp_retired as $bcs_smtp_old ) {
+                delete_option( $bcs_smtp_old );
+        }
+
+        // The single webhook URL from the earliest builds: make sure it reached its channel, then drop it.
+        $bcs_smtp_old_url = (string) get_option( 'bcs_alert_webhook_url', '' );
+        $bcs_smtp_channel = get_option( 'bcs_alert_channel', 'none' );
+        if ( '' !== $bcs_smtp_old_url && in_array( $bcs_smtp_channel, array( 'slack', 'teams' ), true ) && ! get_option( 'bcs_' . $bcs_smtp_channel . '_webhook_url' ) ) {
+                update_option( 'bcs_' . $bcs_smtp_channel . '_webhook_url', $bcs_smtp_old_url );
+        }
+        delete_option( 'bcs_alert_webhook_url' );
+
+        wp_clear_scheduled_hook( 'bcs_smtp_health_check' ); // Rescheduled on the fixed 15-minute interval.
+        wp_clear_scheduled_hook( 'bcs_smtp_send_report' );  // Rebooked for the 1st of the month.
+
+        // Earlier versions could keep the log forever; 1.3 keeps 90 days. Nothing is pruned for
+        // 30 days after updating, so older entries can be exported first (the Email log says so).
+        add_option( 'bcs_smtp_prune_after', time() + 30 * DAY_IN_SECONDS, '', false );
+
+        // 1.0.0 stored the SMTP password as plain text; encrypt it now rather than on the next save.
+        $bcs_smtp_pw = (string) get_option( 'bcs_smtp_password', '' );
+        if ( '' !== $bcs_smtp_pw && 0 !== strpos( $bcs_smtp_pw, 'enc:' ) && 0 !== strpos( $bcs_smtp_pw, 'enc2:' ) ) {
+                $bcs_smtp_mailer = new BCS_SMTP_Mailer();
+                update_option( 'bcs_smtp_password', $bcs_smtp_mailer->encrypt_password( $bcs_smtp_pw ) );
+        }
+
+        update_option( 'bcs_smtp_migrated_1_3', true );
+}
+add_action( 'plugins_loaded', 'bcs_smtp_migrate_1_3', 5 ); // After the 1.0 migration, before bcs_smtp_init().

bcs-smtp-manager/trunk/includes/class-bcs-smtp-core.php

@@ -55 +55 @@
                 add_action( 'wp_ajax_bcs_smtp_send_test',          array( $this->admin, 'ajax_send_test' ) );
                 add_action( 'wp_ajax_bcs_smtp_check_now',          array( $this->admin, 'ajax_check_now' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_monitor',       array( $this->admin, 'ajax_save_monitor' ) );
+                add_action( 'wp_ajax_bcs_smtp_get_health_banner', array( $this->admin, 'ajax_get_health_banner' ) );
                 add_action( 'wp_ajax_bcs_smtp_save_alerts',        array( $this->admin, 'ajax_save_alerts' ) );
                 add_action( 'wp_ajax_bcs_smtp_send_test_alert',    array( $this->admin, 'ajax_send_test_alert' ) );
@@ -62 +62 @@
                 add_action( 'wp_ajax_bcs_smtp_save_report_schedule', array( $this->admin, 'ajax_save_report_schedule' ) );
                 add_action( 'wp_ajax_bcs_smtp_send_report_now',    array( $this->admin, 'ajax_send_report_now' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_log_prune',     array( $this->admin, 'ajax_save_log_prune' ) );
-                add_action( 'wp_ajax_bcs_smtp_resend_email',       array( $this->admin, 'ajax_resend_email' ) );
-                add_action( 'wp_ajax_bcs_smtp_save_resend_settings', array( $this->admin, 'ajax_save_resend_settings' ) );
         }
 
@@ -75 +72 @@
         public function run() {
                 $this->db->maybe_create_tables();
+
+                // Scheduling reads the cron schedules, whose labels are translated, so it waits for init:
+                // translations loaded earlier trigger a "_load_textdomain_just_in_time" notice (WP 6.7+).
+                add_action( 'init', array( $this, 'schedule_events' ) );
+        }
+
+        public function schedule_events() {
                 $this->monitor->maybe_schedule_event();
+                $this->admin->ensure_report_scheduled();
 
-                // Schedule daily log pruning cron (runs even when mode is 'disabled' — no-op in that case).
+                // Daily pruning keeps the log to the last BCS_SMTP_LOG_RETENTION_DAYS days.
                 if ( ! wp_next_scheduled( 'bcs_smtp_prune_log' ) ) {
                         wp_schedule_event( time() + DAY_IN_SECONDS, 'daily', 'bcs_smtp_prune_log' );

bcs-smtp-manager/trunk/includes/class-bcs-smtp-db.php

@@ -69 +69 @@
         public function maybe_create_tables() {
                 $this->migrate_table_names();
-                if ( get_option( 'bcs_db_version' ) !== BCS_SMTP_VERSION ) {
+                if ( get_option( 'bcs_db_version' ) !== BCS_SMTP_DB_VERSION ) {
                         $this->create_tables();
-                        update_option( 'bcs_db_version', BCS_SMTP_VERSION );
+                        update_option( 'bcs_db_version', BCS_SMTP_DB_VERSION );
                 }
         }
@@ -80 +80 @@
                 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
 
-                // Email log — every wp_mail() call is recorded here. Message body/headers are
-                // intentionally NOT in this schema by default — only delivery metadata is retained
-                // (see readme.txt). The `body`/`body_format` columns below are the sole exception:
-                // populated only for FAILED sends, only when the opt-in "Store failed email content"
-                // setting is enabled, and purged after a configurable retention window — see
-                // BCS_SMTP_Mailer::on_email_failed() and BCS_SMTP_Admin::run_log_pruning().
+                // Email log — every wp_mail() call is recorded here with its delivery details and message:
+                // `body`, `body_format`, `mail_headers` and `attachments` (file names only, never the files).
+                // Rows are pruned after BCS_SMTP_LOG_RETENTION_DAYS — see BCS_SMTP_Mailer::capture_outgoing_email().
                 $sql = "CREATE TABLE {$this->email_log_table()} (
                         id             bigint(20) unsigned NOT NULL AUTO_INCREMENT,
@@ -98 +95 @@
                         body           longtext,
                         body_format    varchar(10),
+                        mail_headers   text,
+                        attachments    text,
                         resend_count   smallint(5) unsigned NOT NULL DEFAULT 0,
                         last_resend_at datetime NULL,
@@ -114 +113 @@
                 // Migration: drop the legacy `headers` column from installs that pre-date 1.2 (dbDelta
                 // never drops columns). Note: `body` is deliberately NOT in this list from 1.2 onward —
-                // it was dropped in 1.1 but is re-added (conditionally populated) by the CREATE TABLE above
-                // to support the opt-in "Resend failed emails" feature.
+                // it was dropped in 1.1 and re-added for the resend feature (removed in 1.3; the column is
+                // kept so existing tables need no destructive change, and is cleared on upgrade).
                 $table = esc_sql( $this->email_log_table() );
                 foreach ( array( 'headers' ) as $col ) {
@@ -158 +157 @@
                                 'message_id'   => isset( $data['message_id'] )   ? $data['message_id']   : null,
                                 'provider'     => isset( $data['provider'] )     ? $data['provider']     : null,
+                                'body'         => isset( $data['body'] )         ? $data['body']         : null,
+                                'body_format'  => isset( $data['body_format'] )  ? $data['body_format']  : null,
+                                'mail_headers' => isset( $data['mail_headers'] ) ? $data['mail_headers'] : null,
+                                'attachments'  => isset( $data['attachments'] )  ? $data['attachments']  : null,
                         ),
-                        array( '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )
+                        array( '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )
                 );
                 return (int) $wpdb->insert_id;
@@ -258 +261 @@
         }
 
-        /**
-         * Store the message body for a failed send (opt-in, see BCS_SMTP_OPT_STORE_FAILED_BODY).
-         * Never called for successful/unconfirmed sends.
-         *
-         * @param int    $id
-         * @param string $body
-         * @param string $format 'html'|'text'
-         */
-        public function update_email_log_body( $id, $body, $format = 'text' ) {
-                global $wpdb;
-                $wpdb->update( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        $this->email_log_table(),
-                        array( 'body' => $body, 'body_format' => $format ),
-                        array( 'id' => (int) $id ),
-                        array( '%s', '%s' ),
-                        array( '%d' )
-                );
-        }
-
-        /**
-         * Bump the resend counter and timestamp on the original log row.
-         * Called regardless of whether the resend attempt itself succeeds.
-         *
-         * @param int $id
-         */
-        public function increment_resend_count( $id ) {
-                global $wpdb;
-                $table = esc_sql( $this->email_log_table() );
-                $wpdb->query( $wpdb->prepare( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        "UPDATE {$table} SET resend_count = resend_count + 1, last_resend_at = %s WHERE id = %d", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                        current_time( 'mysql' ),
-                        (int) $id
-                ) );
-        }
-
-        /**
-         * Clear stored bodies of failed emails older than $days — independent of (and typically
-         * shorter than) the overall log retention window, since bodies are more sensitive than metadata.
-         *
-         * @param int $days
-         */
-        public function clear_old_failed_bodies( $days ) {
-                global $wpdb;
-                $table = esc_sql( $this->email_log_table() );
-                $days  = max( 1, (int) $days );
-                $wpdb->query( $wpdb->prepare( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
-                        "UPDATE {$table} SET body = NULL, body_format = NULL WHERE status = 'failed' AND body IS NOT NULL AND sent_at < DATE_SUB(NOW(), INTERVAL %d DAY)", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                        $days
-                ) );
-        }
-
         /* ─────────────────────────────────────────────────────────────────── */
         /* Email log — read                                                     */
@@ -324 +276 @@
          *   per_page   int     Rows per page
          * }
+         * Rows carry the delivery columns only, never message bodies, so a page of the log stays light.
+         *
          * @return array { rows, total, pages, page, per_page }
          */
@@ -367 +321 @@
                                 $wpdb->prepare(
                                         // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                                        "SELECT * FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
+                                        "SELECT id, sent_at, subject, from_address, to_address, status, error_msg, message_id, provider FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
                                         (int) $args['per_page'],
                                         $offset
@@ -381 +335 @@
                                 $wpdb->prepare( // phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.ReplacementsWrongNumber,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
                                         // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
-                                        "SELECT * FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
+                                        "SELECT id, sent_at, subject, from_address, to_address, status, error_msg, message_id, provider FROM {$table} WHERE {$where_sql} ORDER BY sent_at DESC LIMIT %d OFFSET %d",
                                         array_merge( $params, array( (int) $args['per_page'], $offset ) )
                                 ),
@@ -395 +349 @@
                         'per_page' => (int) $args['per_page'],
                 );
+        }
+
+
+        /**
+         * IDs of the next newer and older emails, for stepping through the log one email at a time.
+         *
+         * @param  int $id
+         * @return array{newer:int,older:int} 0 when there is none.
+         */
+        public function get_adjacent_log_ids( $id ) {
+                global $wpdb;
+                $table = esc_sql( $this->email_log_table() );
+                // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+                $newer = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM {$table} WHERE id > %d ORDER BY id ASC LIMIT 1", (int) $id ) );
+                $older = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM {$table} WHERE id < %d ORDER BY id DESC LIMIT 1", (int) $id ) );
+                // phpcs:enable
+                return array( 'newer' => (int) $newer, 'older' => (int) $older );
+        }
+
+        /**
+         * How many log entries are older than the given number of days.
+         *
+         * @param  int $days
+         * @return int
+         */
+        public function count_email_log_older_than( $days ) {
+                global $wpdb;
+                $table  = esc_sql( $this->email_log_table() );
+                $cutoff = gmdate( 'Y-m-d H:i:s', current_time( 'timestamp' ) - (int) $days * DAY_IN_SECONDS );
+                // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+                return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$table} WHERE sent_at < %s", $cutoff ) );
+        }
+
+        /**
+         * Emails per status for a date range and search, for the log's status filter.
+         *
+         * @param  string $date_range
+         * @param  string $search
+         * @return array{all:int,success:int,failed:int,unconfirmed:int}
+         */
+        public function count_email_log_by_status( $date_range = '30days', $search = '' ) {
+                global $wpdb;
+                $table  = esc_sql( $this->email_log_table() );
+                $where  = array( '1=1' );
+                $params = array();
+
+                $date_sql = $this->build_date_where( $date_range );
+                if ( $date_sql ) {
+                        $where[] = $date_sql;
+                }
+                if ( '' !== $search ) {
+                        $like     = '%' . $wpdb->esc_like( $search ) . '%';
+                        $where[]  = '( subject LIKE %s OR from_address LIKE %s OR to_address LIKE %s )';
+                        $params[] = $like;
+                        $params[] = $like;
+                        $params[] = $like;
+                }
+                $sql = "SELECT status, COUNT(*) AS n FROM {$table} WHERE " . implode( ' AND ', $where ) . ' GROUP BY status';
+                // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.NotPrepared,PluginCheck.Security.DirectDB.UnescapedDBParameter
+                $rows = $wpdb->get_results( $params ? $wpdb->prepare( $sql, $params ) : $sql, ARRAY_A );
+
+                $counts = array( 'all' => 0, 'success' => 0, 'failed' => 0, 'unconfirmed' => 0 );
+                foreach ( (array) $rows as $r ) {
+                        if ( isset( $counts[ $r['status'] ] ) ) {
+                                $counts[ $r['status'] ] = (int) $r['n'];
+                        }
+                        $counts['all'] += (int) $r['n'];
+                }
+                return $counts;
+        }
+
+        /**
+         * How many different people actually received email in the range: unique recipient
+         * addresses on successfully sent emails only (failed and unconfirmed sends don't count).
+         *
+         * @param string $date_range       Range key.
+         * @param array  $exclude          Addresses to leave out (the site's own team).
+         * @param array  $exclude_domains  Domains whose addresses are left out, e.g. "example.com".
+         * @return int
+         */
+        public function count_unique_recipients( $date_range = '30days', $exclude = array(), $exclude_domains = array() ) {
+                $exclude         = array_flip( array_map( 'strtolower', array_map( 'trim', (array) $exclude ) ) );
+                $exclude_domains = array_map( 'strtolower', array_filter( array_map( 'trim', (array) $exclude_domains ) ) );
+                global $wpdb;
+                $table    = esc_sql( $this->email_log_table() );
+                $date_sql = $this->build_date_where( $date_range );
+                $where    = "WHERE status = 'success'" . ( $date_sql ? " AND {$date_sql}" : '' );
+
+                $rows = $wpdb->get_col( "SELECT to_address FROM {$table} {$where}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,PluginCheck.Security.DirectDB.UnescapedDBParameter
+
+                // A row can hold several comma-separated addresses; count each person once.
+                $seen = array();
+                foreach ( (array) $rows as $list ) {
+                        foreach ( explode( ',', (string) $list ) as $addr ) {
+                                $addr = strtolower( trim( $addr ) );
+                                if ( preg_match( '/<([^>]+)>/', $addr, $m ) ) {
+                                        $addr = trim( $m[1] );
+                                }
+                                if ( '' === $addr || isset( $exclude[ $addr ] ) ) {
+                                        continue;
+                                }
+                                $domain = substr( strrchr( $addr, '@' ), 1 );
+                                if ( $domain && in_array( $domain, $exclude_domains, true ) ) {
+                                        continue;
+                                }
+                                $seen[ $addr ] = true;
+                        }
+                }
+                return count( $seen );
+        }
+
+        /**
+         * Return success/failed/unconfirmed/total counts for the given date range.
+         *
+         * @param  string $date_range
+         * @return array  { success, failed, unconfirmed, total, recipients }
+         */
+        public function get_email_summary_with_recipients( $date_range = '30days', $exclude = array(), $exclude_domains = array() ) {
+                $summary               = $this->get_email_summary( $date_range );
+                $summary['recipients'] = $this->count_unique_recipients( $date_range, $exclude, $exclude_domains );
+                return $summary;
         }
 
@@ -426 +501 @@
 
         /**
-         * Return daily counts per status, suitable for a Chart.js dataset.
+         * Return daily counts per status, used by the admin line charts and the report email.
          *
          * @param  string $date_range
@@ -591 +666 @@
                                 $s = gmdate( 'Y-m-01 00:00:00', $now );
                                 return "sent_at >= '{$s}'";
+                        case 'last_month':
+                                $s = gmdate( 'Y-m-01 00:00:00', strtotime( 'first day of last month', $now ) );
+                                $e = gmdate( 'Y-m-t 23:59:59', strtotime( 'first day of last month', $now ) );
+                                return "sent_at BETWEEN '{$s}' AND '{$e}'";
                         case '3months':
                                 $s = gmdate( 'Y-m-d 00:00:00', strtotime( '-3 months', $now ) );
@@ -615 +694 @@
                         'last_week'  => 14,
                         'this_month' => 30,
+                        'last_month' => 62,
                         '3months'    => 90,
                         '6months'    => 180,

bcs-smtp-manager/trunk/includes/class-bcs-smtp-email-template.php

@@ -1 +1 @@
 <?php
 /**
- * Shared HTML chrome for outgoing plugin emails (test email + scheduled report).
- * Holds only the markup that is genuinely identical between templates — each
- * template still builds its own header banner and body content.
+ * Shared layout for the plugin's own emails (test email + monthly report).
+ *
+ * Table-based and inline-styled so it holds up in Outlook and Gmail; fluid up to 600px
+ * so it fits phones; with a hidden preheader for the inbox preview line and dark-mode
+ * overrides for clients that support them (Apple Mail, Outlook for Mac/iOS).
  *
  * @package BCS_SMTP_Manager
@@ -13 +15 @@
 class BCS_SMTP_Email_Template {
 
+        const BRAND = '#1450c4';
+        const FONT  = "-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif";
+        const MONO  = "ui-monospace,SFMono-Regular,Menlo,Consolas,'Liberation Mono',monospace";
+
+        /** Status tones: text colour and soft background. */
+        const TONES = array(
+                'ok'   => array( '#0f7a4a', '#e6f6ee' ),
+                'bad'  => array( '#c62828', '#fdecec' ),
+                'warn' => array( '#a15c00', '#fdf3e1' ),
+                'info' => array( '#1450c4', '#e8effc' ),
+        );
+
         /**
-         * Opening half of the email: DOCTYPE/head/body + the outer centering table
-         * + the inner content card table (open only — caller fills in everything else).
+         * A whole email document.
          *
-         * @param string $title          <title> text.
-         * @param int    $width          Inner card width in px.
-         * @param int    $radius         Inner card border-radius in px.
-         * @param string $shadow_opacity Box-shadow alpha, e.g. '.08'.
+         * @param array $args {
+         *     @type string $title     Document title.
+         *     @type string $preheader Inbox preview text (plain).
+         *     @type string $label     Small label shown above the card, right of the site name (plain).
+         *     @type string $body      Card rows: one or more escaped `<tr>` elements.
+         *     @type string $footer    Escaped HTML for the line under the card.
+         * }
+         * @return string
          */
-        public static function wrapper_open( $title, $width = 600, $radius = 14, $shadow_opacity = '.08' ) {
+        public static function document( $args ) {
+                $args = wp_parse_args( $args, array( 'title' => '', 'preheader' => '', 'label' => '', 'body' => '', 'footer' => '' ) );
+                $site = get_bloginfo( 'name' );
+                // Pads the preview so clients don't fill it with the first lines of the body.
+                $pad = str_repeat( '&#847;&zwnj;&nbsp;', 40 );
+
                 return '<!DOCTYPE html>
-<html lang="en">
-<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>' . esc_html( $title ) . '</title></head>
-<body style="margin:0;padding:0;background:#f1f5f9;font-family:-apple-system,BlinkMacSystemFont,\'Segoe UI\',Roboto,sans-serif">
-<table width="100%" cellpadding="0" cellspacing="0" border="0" bgcolor="#f1f5f9" style="background-color:#f1f5f9;padding:40px 16px">
-<tr><td align="center">
-<table width="' . (int) $width . '" cellpadding="0" cellspacing="0" border="0" bgcolor="#ffffff" style="background-color:#ffffff;border-radius:' . (int) $radius . 'px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,' . esc_attr( $shadow_opacity ) . ')">
-';
-        }
-
-        /** Closing half of the email — matches wrapper_open(). */
-        public static function wrapper_close() {
-                return '
+<html lang="' . esc_attr( str_replace( '_', '-', get_locale() ) ) . '">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<meta name="color-scheme" content="light dark">
+<meta name="supported-color-schemes" content="light dark">
+<title>' . esc_html( $args['title'] ) . '</title>
+<style>
+body{margin:0;padding:0;-webkit-text-size-adjust:100%}
+a{color:' . self::BRAND . '}
+@media (max-width:620px){
+  .bcs-pad{padding-left:22px!important;padding-right:22px!important}
+  .bcs-h1{font-size:24px!important}
+  .bcs-big{font-size:40px!important}
+  .bcs-hide-sm{display:none!important}
+}
+@media (prefers-color-scheme:dark){
+  .bcs-bg{background:#0b1120!important}
+  .bcs-card{background:#111a2e!important;border-color:#1e2a44!important}
+  .bcs-ink{color:#e8edf6!important}
+  .bcs-ink2{color:#a7b3c8!important}
+  .bcs-ink3{color:#7d8aa1!important}
+  .bcs-line{border-color:#1e2a44!important}
+  .bcs-soft{background:#0d1526!important}
+  .bcs-track{background:#1e2a44!important}
+}
+</style>
+</head>
+<body class="bcs-bg" style="margin:0;padding:0;background:#eef1f6">
+<div style="display:none;max-height:0;max-width:0;overflow:hidden;opacity:0;mso-hide:all;font-size:1px;line-height:1px;color:#eef1f6">' . esc_html( $args['preheader'] ) . $pad . '</div>
+<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" class="bcs-bg" bgcolor="#eef1f6" style="background:#eef1f6">
+<tr><td align="center" style="padding:32px 12px 40px">
+<!--[if mso]><table role="presentation" width="600" cellpadding="0" cellspacing="0" border="0"><tr><td><![endif]-->
+<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="max-width:600px;font-family:' . self::FONT . '">
+  <tr><td style="padding:0 6px 14px">
+    <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"><tr>
+      <td class="bcs-ink" style="font-size:14px;font-weight:700;color:#0f172a;letter-spacing:-.1px">' . esc_html( $site ) . '</td>
+      <td class="bcs-ink3" align="right" style="font-size:12px;color:#8a94a6">' . esc_html( $args['label'] ) . '</td>
+    </tr></table>
+  </td></tr>
+  <tr><td class="bcs-card" bgcolor="#ffffff" style="background:#ffffff;border:1px solid #e2e7ef;border-radius:14px;overflow:hidden">
+    <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
+      <tr><td height="4" bgcolor="' . self::BRAND . '" style="background:' . self::BRAND . ';height:4px;font-size:0;line-height:0">&nbsp;</td></tr>
+' . $args['body'] . '
+    </table>
+  </td></tr>
+  <tr><td class="bcs-ink3" align="center" style="padding:22px 16px 0;font-size:12px;line-height:1.6;color:#8a94a6">' . $args['footer'] . '</td></tr>
 </table>
+<!--[if mso]></td></tr></table><![endif]-->
 </td></tr>
 </table>
@@ -44 +102 @@
 
         /**
-         * The small "Sent from / via ByteCoreStack SMTP" branding line
-         * used in every plugin email footer. $extra is appended after the brand name
-         * (e.g. a "Manage settings" link) so each template can still differ slightly.
+         * Small rounded status pill with a dot.
+         *
+         * @param string $text Plain text.
+         * @param string $tone ok|bad|warn|info.
          */
-        public static function brand_footer_line( $site_url, $site_name, $extra = '' ) {
-                return '<p style="margin:0;font-size:11px;color:#94a3b8">' .
-                        'Sent from <a href="' . esc_url( $site_url ) . '" style="color:#6366f1;text-decoration:none">' . esc_html( $site_name ) . '</a> ' .
-                        'via <strong style="color:#64748b">ByteCoreStack SMTP</strong>' . $extra .
-                        '</p>';
+        public static function pill( $text, $tone = 'info' ) {
+                list( $ink, $bg ) = isset( self::TONES[ $tone ] ) ? self::TONES[ $tone ] : self::TONES['info'];
+                return '<span style="display:inline-block;padding:5px 11px 5px 10px;border-radius:999px;background:' . $bg . ';color:' . $ink . ';font-size:12px;font-weight:600;line-height:1.2">'
+                        . '<span style="color:' . $ink . '">&#9679;</span>&nbsp;' . esc_html( $text ) . '</span>';
+        }
+
+        /**
+         * Solid brand button that renders as a button in Outlook too.
+         *
+         * @param string $url   Link.
+         * @param string $label Plain text.
+         */
+        public static function button( $url, $label ) {
+                return '<table role="presentation" cellpadding="0" cellspacing="0" border="0"><tr>
+  <td bgcolor="' . self::BRAND . '" style="background:' . self::BRAND . ';border-radius:9px">
+    <a href="' . esc_url( $url ) . '" style="display:inline-block;padding:13px 22px;font-family:' . self::FONT . ';font-size:14px;font-weight:600;color:#ffffff;text-decoration:none;border-radius:9px">' . esc_html( $label ) . '&nbsp;&rarr;</a>
+  </td></tr></table>';
+        }
+
+        /**
+         * Label / value rows separated by hairlines.
+         *
+         * @param array $rows List of array( label, value, mono? ). Plain text.
+         */
+        public static function details( $rows ) {
+                $html = '';
+                foreach ( $rows as $i => $row ) {
+                        $border = $i ? 'border-top:1px solid #edf0f5;' : '';
+                        $font   = ! empty( $row[2] ) ? 'font-family:' . self::MONO . ';font-size:13px;' : 'font-size:14px;';
+                        $html  .= '<tr>
+  <td class="bcs-ink3 bcs-line" width="34%" valign="top" style="' . $border . 'padding:12px 12px 12px 0;font-size:13px;color:#64748b">' . esc_html( $row[0] ) . '</td>
+  <td class="bcs-ink bcs-line" valign="top" style="' . $border . 'padding:12px 0;' . $font . 'color:#0f172a;word-break:break-word">' . esc_html( $row[1] ) . '</td>
+</tr>';
+                }
+                return '<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">' . $html . '</table>';
+        }
+
+        /**
+         * Footer line: "Sent from {site} by ByteCoreStack SMTP · {link}".
+         *
+         * @param string $link_url   Settings link.
+         * @param string $link_label Plain text.
+         * @param string $before     Escaped HTML shown on its own line above, optional.
+         */
+        public static function footer( $link_url, $link_label, $before = '' ) {
+                /* translators: 1: site name (linked), 2: plugin name. */
+                $sent = sprintf( esc_html__( 'Sent from %1$s by %2$s', 'bcs-smtp-manager' ), '<a href="' . esc_url( home_url( '/' ) ) . '" style="color:#64748b;text-decoration:underline">' . esc_html( get_bloginfo( 'name' ) ) . '</a>', 'ByteCoreStack SMTP' );
+                return ( $before ? $before . '<br>' : '' ) . $sent . ' &middot; <a href="' . esc_url( $link_url ) . '" style="color:#64748b;text-decoration:underline">' . esc_html( $link_label ) . '</a>';
+        }
+
+        /**
+         * Link to a tab of the plugin's settings page.
+         *
+         * @param string $tab overview|connection|alerts|reports|email-log.
+         */
+        public static function settings_url( $tab = '' ) {
+                return admin_url( 'options-general.php?page=bcs-smtp-manager' ) . ( $tab ? '#' . $tab : '' );
         }
 }

bcs-smtp-manager/trunk/includes/class-bcs-smtp-mailer.php

@@ -17 +17 @@
         public $pending_log_id = null;
 
-        /** Body/format of the email currently being sent — held in memory only, never persisted unless the send fails. */
-        private $pending_body        = '';
-        private $pending_body_format = 'text';
+        /** Server-side SMTP transcript lines for the email currently being sent (credentials never included). */
+        private $smtp_transcript = array();
 
         public function __construct( $db = null ) {
@@ -76 +75 @@
          */
         public function capture_outgoing_email( $args ) {
+                $this->smtp_transcript = array();
+
                 if ( ! $this->db ) {
                         return $args;
@@ -108 +109 @@
                 $args['headers'] = $headers;
 
-                // Note: message body/headers are NOT persisted to the log table for successful/unconfirmed
-                // sends — only delivery metadata is stored (see readme.txt "What is tracked"). The body is
-                // held here in memory only; it's written to the DB by on_email_failed() below, and only
-                // then, only when the send actually fails, and only if the opt-in retention setting is on.
-                $this->pending_body        = isset( $args['message'] ) ? (string) $args['message'] : '';
-                $this->pending_body_format = ( false !== stripos( implode( ' ', $headers ), 'text/html' ) ) ? 'html' : 'text';
-
-                $this->pending_log_id = $this->db->log_email( array(
+                $row = array(
                         'subject'      => isset( $args['subject'] ) ? $args['subject'] : '',
                         'from_address' => $from_address,
@@ -121 +115 @@
                         'status'       => 'pending',
                         'message_id'   => $tracking_id,
-                ) );
+                );
+
+                // Keep the message itself so the log can show the full email.
+                $row = array_merge( $row, $this->email_content_for_log( $args, $headers ) );
+
+                $this->pending_log_id = $this->db->log_email( $row );
 
                 return $args;
@@ -132 +131 @@
          * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer
          */
+        /** Most bytes of a message body kept per email, so one huge newsletter can't bloat the table. */
+        const MAX_LOGGED_BODY = 1048576;
+
+        /**
+         * Body, headers and attachment names to save with a log row.
+         *
+         * @param  array    $args    wp_mail() arguments.
+         * @param  string[] $headers Normalized header lines, including our tracking header.
+         * @return array
+         */
+        private function email_content_for_log( $args, $headers ) {
+                $body = isset( $args['message'] ) ? (string) $args['message'] : '';
+                if ( strlen( $body ) > self::MAX_LOGGED_BODY ) {
+                        $body = function_exists( 'mb_strcut' ) ? mb_strcut( $body, 0, self::MAX_LOGGED_BODY, 'UTF-8' ) : substr( $body, 0, self::MAX_LOGGED_BODY );
+                }
+
+                $kept         = array();
+                $content_type = '';
+                foreach ( $headers as $header ) {
+                        if ( 0 === stripos( $header, 'X-BPTSM-ID:' ) ) {
+                                continue;
+                        }
+                        $kept[] = $header;
+                        if ( 0 === stripos( $header, 'Content-Type:' ) ) {
+                                $content_type = $header;
+                        }
+                }
+                if ( '' === $content_type ) {
+                        // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- reading a WordPress core filter.
+                        $content_type = (string) apply_filters( 'wp_mail_content_type', 'text/plain' );
+                }
+                $is_html = false !== stripos( $content_type, 'text/html' ) || preg_match( '/<(html|body|table|div|p|br)\b/i', $body );
+
+                // Attachment file names only; the files themselves are never copied.
+                $attachments = isset( $args['attachments'] ) ? $args['attachments'] : array();
+                if ( is_string( $attachments ) ) {
+                        $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) );
+                }
+                $names = array();
+                foreach ( (array) $attachments as $name => $file ) {
+                        if ( '' !== trim( (string) $file ) ) {
+                                $names[] = is_string( $name ) ? $name : wp_basename( (string) $file );
+                        }
+                }
+
+                return array(
+                        'body'         => $body,
+                        'body_format'  => $is_html ? 'html' : 'text',
+                        'mail_headers' => $kept ? wp_json_encode( $kept ) : null,
+                        'attachments'  => $names ? wp_json_encode( $names ) : null,
+                );
+        }
+
         public function on_phpmailer_init( $phpmailer ) {
                 $smtp_enabled = (bool) get_option( 'bcs_smtp_enabled' );
@@ -137 +189 @@
                 if ( $smtp_enabled ) {
                         $this->configure_phpmailer( $phpmailer );
+                        $this->attach_transcript_capture( $phpmailer );
                 }
 
@@ -165 +218 @@
         public function on_email_failed( $error ) {
                 if ( $this->db && $this->pending_log_id ) {
-                        $msg = is_wp_error( $error ) ? $error->get_error_message() : 'Unknown error';
+                        $msg = $this->describe_failure( is_wp_error( $error ) ? $error->get_error_message() : 'Unknown error' );
                         $this->db->update_email_log_status( $this->pending_log_id, 'failed', $msg );
 
-                        if ( get_option( BCS_SMTP_OPT_STORE_FAILED_BODY, false ) && '' !== $this->pending_body ) {
-                                $this->db->update_email_log_body( $this->pending_log_id, $this->pending_body, $this->pending_body_format );
-                        }
-
-                        $this->pending_log_id     = null;
-                        $this->pending_body        = '';
-                        $this->pending_body_format = 'text';
-                }
-        }
-
-        /* ─────────────────────────────────────────────────────────────────── */
-        /* Resend a failed email                                                */
-        /* ─────────────────────────────────────────────────────────────────── */
-
-        /**
-         * Resend a previously logged, failed email using its stored body.
-         * Re-enters the normal wp_mail()/capture/log hook chain, so a fresh log row
-         * is created for the resend attempt — the original row is untouched other
-         * than its resend_count/last_resend_at audit fields.
-         *
-         * @param  int $log_id
-         * @return array { success: bool, message: string }
-         */
-        public function resend_stored_email( $log_id ) {
-                if ( ! $this->db ) {
-                        return array( 'success' => false, 'message' => __( 'Internal error — database unavailable.', 'bcs-smtp-manager' ) );
-                }
-
-                $row = $this->db->get_email_log_row( $log_id );
-                if ( ! $row ) {
-                        return array( 'success' => false, 'message' => __( 'Log entry not found.', 'bcs-smtp-manager' ) );
-                }
-                if ( 'failed' !== $row['status'] ) {
-                        return array( 'success' => false, 'message' => __( 'Only failed emails can be resent.', 'bcs-smtp-manager' ) );
-                }
-                if ( empty( $row['body'] ) ) {
-                        return array( 'success' => false, 'message' => __( 'No stored content to resend — enable "Store failed email content" in the Config tab before the failure occurs.', 'bcs-smtp-manager' ) );
-                }
-                if ( empty( $row['to_address'] ) ) {
-                        return array( 'success' => false, 'message' => __( 'Log entry has no recipient address.', 'bcs-smtp-manager' ) );
-                }
-
-                $headers = array();
-                if ( 'html' === $row['body_format'] ) {
-                        $headers[] = 'Content-Type: text/html; charset=UTF-8';
-                }
-
-                $this->db->increment_resend_count( $log_id );
-
-                $sent = wp_mail( $row['to_address'], $row['subject'], $row['body'], $headers );
-
-                return array(
-                        'success' => (bool) $sent,
-                        'message' => $sent
-                                ? __( 'Resend attempted — check the Email Log for the new entry\'s delivery status.', 'bcs-smtp-manager' )
-                                : __( 'wp_mail() returned false when resending — check the new log entry for details.', 'bcs-smtp-manager' ),
-                );
+                        $this->pending_log_id = null;
+                }
+        }
+
+        /* ─────────────────────────────────────────────────────────────────── */
+        /* SMTP transcript capture (failure diagnostics)                       */
+        /* ─────────────────────────────────────────────────────────────────── */
+
+        /** @var callable|null The Debugoutput closure we installed, so we can recognise our own. */
+        private $transcript_cb = null;
+
+        /**
+         * Capture PHPMailer's debug output so a failure can report the server's actual reply
+         * (e.g. "535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled")
+         * instead of PHPMailer's generic "Could not authenticate.". Client lines are discarded, so
+         * nothing the site sends — including credentials — is ever retained.
+         *
+         * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer
+         */
+        private function attach_transcript_capture( $phpmailer ) {
+                if ( null === $this->transcript_cb ) {
+                        $this->transcript_cb = function ( $str ) {
+                                $str = trim( (string) $str );
+                                if ( '' === $str || 0 === strpos( $str, 'CLIENT -> SERVER' ) || count( $this->smtp_transcript ) >= 200 ) {
+                                        return;
+                                }
+                                $this->smtp_transcript[] = $str;
+                        };
+                }
+                // Respect a debug level another plugin or developer set deliberately.
+                if ( 0 !== (int) $phpmailer->SMTPDebug && $phpmailer->Debugoutput !== $this->transcript_cb ) {
+                        return;
+                }
+                $phpmailer->SMTPDebug   = 3; // SMTP::DEBUG_CONNECTION — includes connection-level errors.
+                $phpmailer->Debugoutput = $this->transcript_cb;
+        }
+
+        /**
+         * Most relevant error line from the last SMTP conversation, or '' if none.
+         *
+         * @return string
+         */
+        public function get_last_smtp_error_reply() {
+                $lines = array_reverse( $this->smtp_transcript );
+                // Prefer the server's own 4xx/5xx reply — it carries the actionable reason.
+                foreach ( $lines as $line ) {
+                        if ( preg_match( '/^SERVER -> CLIENT:\s*([45]\d\d[\s-].*)$/', $line, $m ) ) {
+                                return mb_substr( trim( $m[1] ), 0, 500 );
+                        }
+                }
+                // Otherwise a connection-level error from PHPMailer's SMTP class (upper-case "SMTP ERROR:",
+                // unlike PHPMailer's generic "SMTP Error: …" message that is already in the error text).
+                foreach ( $lines as $line ) {
+                        if ( 0 === strpos( $line, 'SMTP ERROR:' ) || false !== stripos( $line, 'Connection failed' ) ) {
+                                return mb_substr( $line, 0, 500 );
+                        }
+                }
+                return '';
+        }
+
+        /**
+         * Enrich a PHPMailer error message with the server's reply and, when relevant, the
+         * unreadable-password explanation.
+         *
+         * @param  string $msg
+         * @return string
+         */
+        public function describe_failure( $msg ) {
+                $reply = $this->get_last_smtp_error_reply();
+                if ( '' !== $reply && false === strpos( $msg, $reply ) ) {
+                        $msg .= ' — Server reply: ' . $reply;
+                }
+                if ( get_option( 'bcs_smtp_enabled' ) && get_option( 'bcs_smtp_auth' ) && $this->is_password_unreadable() ) {
+                        $msg .= ' ' . $this->unreadable_password_message();
+                }
+                return $msg;
         }
 
@@ -232 +304 @@
 
         /**
-         * Encrypt a plaintext password for storage in wp_options.
-         * Keyed off this install's AUTH salt, so the ciphertext is unusable outside this site.
+         * 32-byte key used to encrypt the SMTP password.
+         *
+         * Deliberately NOT derived from wp_salt(): security plugins rotate salts (AIOS "salt postfix"
+         * changes them weekly; Solid Security / Sucuri regenerate them on demand), which silently made
+         * the stored password undecryptable and every send fail with "Could not authenticate".
+         * A BCS_SMTP_CRYPTO_KEY constant in wp-config.php takes precedence; otherwise a random key is
+         * generated once and kept in its own non-autoloaded option.
+         *
+         * @return string Raw binary key.
+         */
+        private function get_crypto_key() {
+                if ( defined( 'BCS_SMTP_CRYPTO_KEY' ) && '' !== (string) BCS_SMTP_CRYPTO_KEY ) {
+                        return hash( 'sha256', (string) BCS_SMTP_CRYPTO_KEY, true );
+                }
+                $secret = get_option( BCS_SMTP_OPT_CRYPTO_KEY, '' );
+                if ( '' === $secret ) {
+                        add_option( BCS_SMTP_OPT_CRYPTO_KEY, wp_generate_password( 64, true, true ), '', false );
+                        $secret = get_option( BCS_SMTP_OPT_CRYPTO_KEY, '' );
+                }
+                return hash( 'sha256', $secret, true );
+        }
+
+        /**
+         * Encrypt a plaintext password for storage in wp_options (AES-256-CBC + HMAC-SHA256).
          *
          * @param  string $plain
-         * @return string Encrypted value (prefixed 'enc:'), or the plain value if openssl is unavailable.
+         * @return string Encrypted value (prefixed 'enc2:'), or the plain value if openssl is unavailable.
          */
         public function encrypt_password( $plain ) {
@@ -242 +336 @@
                         return $plain;
                 }
-                $key    = hash( 'sha256', wp_salt( 'auth' ), true );
+                $key    = $this->get_crypto_key();
                 $iv     = random_bytes( 16 );
                 $cipher = openssl_encrypt( $plain, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
@@ -248 +342 @@
                         return $plain;
                 }
-                return 'enc:' . base64_encode( $iv . $cipher ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode -- ciphertext encoding, not obfuscation.
+                $mac = hash_hmac( 'sha256', $iv . $cipher, $key, true );
+                return 'enc2:' . base64_encode( $iv . $mac . $cipher ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode -- ciphertext encoding, not obfuscation.
         }
 
         /**
          * Decrypt a password previously stored via encrypt_password().
-         * Values without the 'enc:' prefix are treated as legacy plaintext (pre-encryption upgrade)
-         * and returned as-is, so existing installs keep working until their next save.
+         *
+         * 'enc2:' — current format. 'enc:' — pre-1.2.2 format keyed off wp_salt('auth'); decrypted with
+         * that legacy key and transparently re-encrypted to 'enc2:' so later salt changes can't break it.
+         * Values with neither prefix are legacy plaintext and returned as-is.
          *
          * @param  string $stored
-         * @return string
+         * @return string Plaintext, or '' when the value can't be decrypted.
          */
         public function decrypt_password( $stored ) {
-                if ( '' === $stored || 0 !== strpos( $stored, 'enc:' ) ) {
+                if ( '' === $stored ) {
+                        return '';
+                }
+                if ( 0 === strpos( $stored, 'enc2:' ) ) {
+                        if ( ! function_exists( 'openssl_decrypt' ) ) {
+                                return '';
+                        }
+                        $raw = base64_decode( substr( $stored, 5 ), true ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode -- ciphertext decoding, not obfuscation.
+                        if ( false === $raw || strlen( $raw ) <= 48 ) {
+                                return '';
+                        }
+                        $key    = $this->get_crypto_key();
+                        $iv     = substr( $raw, 0, 16 );
+                        $mac    = substr( $raw, 16, 32 );
+                        $cipher = substr( $raw, 48 );
+                        if ( ! hash_equals( hash_hmac( 'sha256', $iv . $cipher, $key, true ), $mac ) ) {
+                                return '';
+                        }
+                        $plain = openssl_decrypt( $cipher, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
+                        return false === $plain ? '' : $plain;
+                }
+                if ( 0 !== strpos( $stored, 'enc:' ) ) {
                         return $stored;
                 }
@@ -274 +392 @@
                 $key    = hash( 'sha256', wp_salt( 'auth' ), true );
                 $plain  = openssl_decrypt( $cipher, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv );
-                return false === $plain ? '' : $plain;
+                if ( false === $plain ) {
+                        return '';
+                }
+                // Migrate to the salt-independent format while the legacy key still works.
+                if ( get_option( 'bcs_smtp_password', '' ) === $stored ) {
+                        update_option( 'bcs_smtp_password', $this->encrypt_password( $plain ) );
+                }
+                return $plain;
         }
 
@@ -280 +405 @@
         public function get_smtp_password() {
                 return $this->decrypt_password( get_option( 'bcs_smtp_password', '' ) );
+        }
+
+        /**
+         * True when a password is saved but can no longer be decrypted (e.g. it was saved under
+         * security keys that have since changed, or the database was migrated to another site).
+         */
+        public function is_password_unreadable() {
+                $stored = get_option( 'bcs_smtp_password', '' );
+                return '' !== $stored && '' === $this->decrypt_password( $stored );
+        }
+
+        /** User-facing explanation for is_password_unreadable(). */
+        public function unreadable_password_message() {
+                return __( 'The saved SMTP password can no longer be decrypted — this happens when WordPress security keys/salts change (e.g. a security plugin rotated them) or the database was moved to another site. Re-enter the password in SMTP Manager → Settings and save.', 'bcs-smtp-manager' );
         }
 
@@ -307 +446 @@
                 $phpmailer->Host = $host;
                 $phpmailer->Port = $port;
+
+                // PHPMailer's default 300s timeout outlives PHP's max_execution_time, so a firewalled port
+                // kills the request with a fatal error instead of returning a readable failure.
+                if ( 300 === (int) $phpmailer->Timeout ) {
+                        $phpmailer->Timeout = 20;
+                }
 
                 switch ( $encryption ) {
@@ -339 +484 @@
 
         /* ─────────────────────────────────────────────────────────────────── */
-        /* SMTP Plugin Detection (used by Config tab)                           */
+        /* SMTP Plugin Detection (used by the Settings tab)                     */
         /* ─────────────────────────────────────────────────────────────────── */
 
@@ -503 +648 @@
                         return array_merge( $base, array(
                                 'success'      => false,
-                                'error_msg'    => 'No SMTP host configured. Enter your SMTP server details in the Settings tab and save first.',
+                                'error_msg'    => __( 'No SMTP server is set up yet. Enter your server details on the Connection tab and save.', 'bcs-smtp-manager' ),
                                 'failure_type' => 'not_configured',
                         ) );
@@ -513 +658 @@
                                 return array_merge( $base, array(
                                         'success'      => false,
-                                        'error_msg'    => "PHP mail() is not available on this server. Configure SMTP in the Settings tab for reliable email delivery.",
+                                        'error_msg'    => __( 'PHP mail() is not available on this server. Set up SMTP on the Connection tab for reliable email delivery.', 'bcs-smtp-manager' ),
                                         'failure_type' => 'mail_unavailable',
                                 ) );
@@ -524 +669 @@
                 }
 
+                // Built-in SMTP: run the exact connect/STARTTLS/AUTH sequence a real send uses.
+                if ( get_option( 'bcs_smtp_enabled' ) ) {
+                        return array_merge( $base, $this->test_builtin_smtp() );
+                }
+
+                // Another SMTP plugin is in charge — we don't hold its credentials, so only
+                // reachability and the TLS handshake are checked below.
                 $encryption = strtolower( $info['encryption'] ?: 'tls' );
                 $timeout    = 8;
@@ -630 +782 @@
                 }
 
-                // Test SMTP AUTH LOGIN when credentials are configured. Reachable for SSL, successfully-upgraded
-                // TLS, and also plain/'none' connections — matching exactly what a real send would attempt, so a
-                // bad username/password doesn't get silently reported as a healthy connection.
-                $auth     = (bool) get_option( 'bcs_smtp_auth', false );
-                $username = get_option( 'bcs_smtp_username', '' );
-                $password = $this->get_smtp_password();
-
-                if ( $auth && $username && $password ) {
-                        fwrite( $socket, "AUTH LOGIN\r\n" );
-                        $auth_resp = fgets( $socket, 1024 );
-                        if ( '334' === substr( trim( $auth_resp ), 0, 3 ) ) {
-                                fwrite( $socket, base64_encode( $username ) . "\r\n" );
-                                $user_resp = fgets( $socket, 1024 );
-                                if ( '334' === substr( trim( $user_resp ), 0, 3 ) ) {
-                                        fwrite( $socket, base64_encode( $password ) . "\r\n" );
-                                        $pass_resp = fgets( $socket, 1024 );
-                                        fwrite( $socket, "QUIT\r\n" );
-                                        fclose( $socket );
-                                        if ( '235' !== substr( trim( $pass_resp ), 0, 3 ) ) {
-                                                return array_merge( $base, array(
-                                                        'success'      => false,
-                                                        'error_msg'    => 'Authentication failed: ' . trim( $pass_resp ) . ' — Verify your username and password (or app password).',
-                                                        'failure_type' => 'auth_failure',
-                                                ) );
-                                        }
-                                        return array_merge( $base, array(
-                                                'success'      => true,
-                                                'error_msg'    => null,
-                                                'failure_type' => null,
-                                        ) );
-                                }
-                        }
-                        // AUTH LOGIN not accepted — server may use a different mechanism.
-                        fwrite( $socket, "QUIT\r\n" );
-                        fclose( $socket );
-                        return array_merge( $base, array(
-                                'success'      => true,
-                                'error_msg'    => null,
-                                'failure_type' => null,
-                                'auth_note'    => 'Connection OK — AUTH LOGIN not supported by this server; credentials will be verified on send.',
-                        ) );
-                }
-
                 fwrite( $socket, "QUIT\r\n" );
                 fclose( $socket );
@@ -684 +793 @@
         }
 
+        /**
+         * Connection + authentication test for the built-in SMTP config, using PHPMailer itself so
+         * every AUTH mechanism, TLS option and phpmailer_init customisation matches a real send.
+         * Nothing is sent — the session ends right after authentication.
+         *
+         * @return array {success, error_msg, failure_type}
+         */
+        private function test_builtin_smtp() {
+                $fail = function ( $msg, $type ) {
+                        return array( 'success' => false, 'error_msg' => $msg, 'failure_type' => $type );
+                };
+
+                if ( get_option( 'bcs_smtp_auth', false ) ) {
+                        if ( $this->is_password_unreadable() ) {
+                                return $fail( $this->unreadable_password_message(), 'auth_failure' );
+                        }
+                        if ( '' === (string) get_option( 'bcs_smtp_username', '' ) || '' === $this->get_smtp_password() ) {
+                                return $fail( __( 'Sign-in is turned on but the username or password is empty. Enter both on the Connection tab and save.', 'bcs-smtp-manager' ), 'auth_failure' );
+                        }
+                }
+
+                $phpmailer = $this->create_phpmailer();
+                if ( ! $phpmailer ) {
+                        return $fail( __( 'PHPMailer is not available — WordPress 5.5 or newer is required for the connection test.', 'bcs-smtp-manager' ), 'plugin_failure' );
+                }
+
+                // Apply phpmailer_init exactly as wp_mail() does, so a conflicting plugin shows up here too.
+                // Our own handler runs as part of it; park the pending log row so it isn't touched.
+                $pending              = $this->pending_log_id;
+                $this->pending_log_id = null;
+                do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- firing the core hook, as wp_mail() does.
+                $this->pending_log_id = $pending;
+
+                if ( 'smtp' !== $phpmailer->Mailer ) {
+                        return $fail( __( 'Another plugin switched PHPMailer away from SMTP during phpmailer_init, so these SMTP settings are not being used for delivery.', 'bcs-smtp-manager' ), 'plugin_failure' );
+                }
+
+                $this->smtp_transcript = array();
+                $this->attach_transcript_capture( $phpmailer );
+                $phpmailer->Timeout = min( (int) $phpmailer->Timeout, 15 );
+
+                $error = '';
+                try {
+                        $ok = $phpmailer->smtpConnect();
+                } catch ( \Exception $e ) {
+                        $ok    = false;
+                        $error = $e->getMessage();
+                }
+
+                // Connecting (and signing in, when enabled) is not proof that mail can be sent:
+                // e.g. Microsoft 365 accepts the connection without AUTH but rejects every message
+                // with "530 5.7.57 Client not authenticated". Walk the envelope a real send uses —
+                // MAIL FROM and RCPT TO — then RSET before DATA, so nothing is delivered.
+                if ( $ok ) {
+                        $envelope_error = $this->test_envelope( $phpmailer );
+                        if ( '' !== $envelope_error ) {
+                                $ok    = false;
+                                $error = $envelope_error;
+                        }
+                }
+                $phpmailer->smtpClose();
+
+                if ( $ok ) {
+                        return array( 'success' => true, 'error_msg' => null, 'failure_type' => null );
+                }
+
+                $msg = $this->describe_failure( $error ?: ( $phpmailer->ErrorInfo ?: __( 'Could not connect to the SMTP server.', 'bcs-smtp-manager' ) ) );
+                return $fail( $msg, $this->classify_failure( $msg ) );
+        }
+
+        /**
+         * Ask the server to accept a sender and a recipient on an open connection, then reset
+         * the transaction before any message data is sent.
+         *
+         * @param \PHPMailer\PHPMailer\PHPMailer $phpmailer Connected (and authenticated, if enabled) mailer.
+         * @return string Empty when the server accepts the envelope, otherwise an error with the server's reply.
+         */
+        private function test_envelope( $phpmailer ) {
+                $smtp = $phpmailer->getSMTPInstance();
+                if ( ! $smtp || ! $smtp->connected() ) {
+                        return '';
+                }
+
+                $from = $phpmailer->From;
+                if ( ! is_email( $from ) ) {
+                        $from = get_option( 'bcs_from_email', '' );
+                }
+                if ( ! is_email( $from ) ) {
+                        $from = get_option( 'admin_email' );
+                }
+                $to = get_option( 'admin_email' );
+
+                $no_auth = ! get_option( 'bcs_smtp_auth', false );
+                $prefix  = $no_auth
+                        ? __( 'The server refused to send mail without signing in. Turn on "My server needs a username and password" and enter your credentials.', 'bcs-smtp-manager' ) . ' '
+                        : '';
+
+                if ( ! $smtp->mail( $from ) ) {
+                        $reply = trim( $smtp->getLastReply() );
+                        $smtp->reset();
+                        /* translators: 1: sender email address, 2: the SMTP server's reply. */
+                        return $prefix . sprintf( __( 'The server would not accept mail from %1$s. Server reply: %2$s', 'bcs-smtp-manager' ), $from, $reply ? $reply : __( 'no response', 'bcs-smtp-manager' ) );
+                }
+                if ( is_email( $to ) && ! $smtp->recipient( $to ) ) {
+                        $reply = trim( $smtp->getLastReply() );
+                        $smtp->reset();
+                        /* translators: 1: recipient email address, 2: the SMTP server's reply. */
+                        return $prefix . sprintf( __( 'The server would not deliver to %1$s. Server reply: %2$s', 'bcs-smtp-manager' ), $to, $reply ? $reply : __( 'no response', 'bcs-smtp-manager' ) );
+                }
+                $smtp->reset();
+                return '';
+        }
+
+        /** @return \PHPMailer\PHPMailer\PHPMailer|null A fresh, exception-throwing PHPMailer instance. */
+        private function create_phpmailer() {
+                if ( ! class_exists( '\PHPMailer\PHPMailer\PHPMailer' ) && file_exists( ABSPATH . WPINC . '/PHPMailer/PHPMailer.php' ) ) {
+                        require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
+                        require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
+                        require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
+                }
+                return class_exists( '\PHPMailer\PHPMailer\PHPMailer' ) ? new \PHPMailer\PHPMailer\PHPMailer( true ) : null;
+        }
+
         /* ─────────────────────────────────────────────────────────────────── */
         /* Manual Test Email Send                                               */
@@ -711 +943 @@
 
                 $headers = array( 'Content-Type: text/html; charset=UTF-8' );
+
+                // Fail fast with the real reason instead of PHPMailer's generic "Could not authenticate."
+                if ( get_option( 'bcs_smtp_enabled' ) && get_option( 'bcs_smtp_auth' ) && $this->is_password_unreadable() ) {
+                        return array(
+                                'success'      => false,
+                                'error_msg'    => $this->unreadable_password_message(),
+                                'failure_type' => 'auth_failure',
+                                'smtp_host'    => $info['host'],
+                                'smtp_port'    => $info['port'],
+                                'mailbox'      => $info['mailbox'],
+                                'source_ip'    => $this->get_source_ip(),
+                        );
+                }
 
                 $captured_error = '';
@@ -745 +990 @@
                 }
 
+                $error_msg = $captured_error ? $this->describe_failure( $captured_error ) : 'wp_mail() returned false — no additional error details.';
                 return array(
                         'success'      => false,
-                        'error_msg'    => $captured_error ?: 'wp_mail() returned false — no additional error details.',
-                        'failure_type' => $this->classify_failure( $captured_error ),
+                        'error_msg'    => $error_msg,
+                        'failure_type' => $this->classify_failure( $error_msg ),
                         'smtp_host'    => $info['host'],
                         'smtp_port'    => $info['port'],
@@ -797 +1043 @@
 
         private function build_test_email_html( $site_name, $site_url, $timestamp, $info, $to ) {
-                return BCS_SMTP_Email_Template::wrapper_open( 'SMTP Test', 580, 14, '.08' ) . '
-  <!-- Header — bgcolor attr = Outlook fallback; background-color = Yahoo/other fallback; background-image = gradient for supporting clients -->
-  <tr><td bgcolor="#10b981" style="background-color:#10b981;background-image:linear-gradient(135deg,#10b981 0%,#059669 100%);padding:36px 40px;text-align:center">
-    <!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td align="center"><![endif]-->
-    <div style="width:56px;height:56px;background:#34d399;border-radius:50%;margin:0 auto 16px">
-      <span style="font-size:28px;line-height:56px;display:block;text-align:center">✓</span>
-    </div>
-    <!--[if mso]></td></tr></table><![endif]-->
-    <h1 style="margin:0;font-size:24px;font-weight:700;color:#ffffff;letter-spacing:-0.3px">Email Delivery Working</h1>
-    <p style="margin:8px 0 0;font-size:14px;color:#d1fae5">Your SMTP configuration is set up correctly</p>
-  </td></tr>
-
-  <!-- Body -->
-  <tr><td style="padding:36px 40px">
-    <p style="margin:0 0 24px;font-size:15px;color:#374151;line-height:1.6">
-      This is a test email from <strong>' . esc_html( $site_name ) . '</strong> to confirm that email delivery is working as expected through ByteCoreStack SMTP.
-    </p>
-
-    <!-- Info grid -->
-    <table width="100%" cellpadding="0" cellspacing="0" border="0" style="background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden;margin-bottom:24px">
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;width:38%;background:#f1f5f9">Recipient</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b;font-family:monospace">' . esc_html( $to ) . '</td>
-      </tr>
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">SMTP Host</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b;font-family:monospace">' . esc_html( $info['host'] ?: 'PHP mail()' ) . ( $info['port'] ? ':' . esc_html( $info['port'] ) : '' ) . '</td>
-      </tr>
-      <tr style="border-bottom:1px solid #e2e8f0">
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">Plugin</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b">' . esc_html( $info['plugin'] ) . '</td>
-      </tr>
-      <tr>
-        <td style="padding:13px 18px;font-size:12px;color:#6b7280;font-weight:600;text-transform:uppercase;letter-spacing:.5px;background:#f1f5f9">Sent At</td>
-        <td style="padding:13px 18px;font-size:13px;color:#1e293b">' . esc_html( $timestamp ) . '</td>
-      </tr>
-    </table>
-
-    <div style="background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:14px 18px;margin-bottom:0">
-      <p style="margin:0;font-size:13px;color:#15803d;line-height:1.5">
-        <strong>All good!</strong> If you received this email, your WordPress site can send emails successfully. Check the Email Log tab in ByteCoreStack SMTP for delivery history.
-      </p>
-    </div>
-  </td></tr>
-
-  <!-- Footer -->
-  <tr><td style="padding:20px 40px 28px;border-top:1px solid #f1f5f9;text-align:center">
-    ' . BCS_SMTP_Email_Template::brand_footer_line( $site_url, $site_name ) . '
-  </td></tr>
-' . BCS_SMTP_Email_Template::wrapper_close();
+                $T      = 'BCS_SMTP_Email_Template';
+                $server = $info['host'] ? $info['host'] . ( $info['port'] ? ':' . $info['port'] : '' ) : __( 'PHP mail() — no SMTP server', 'bcs-smtp-manager' );
+
+                $body = '
+      <tr><td class="bcs-pad" style="padding:36px 40px 0">
+        ' . $T::pill( __( 'Delivered', 'bcs-smtp-manager' ), 'ok' ) . '
+        <h1 class="bcs-ink bcs-h1" style="margin:18px 0 10px;font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.4px;color:#0f172a">' . esc_html__( 'Your site can send email', 'bcs-smtp-manager' ) . '</h1>
+        <p class="bcs-ink2" style="margin:0;font-size:15px;line-height:1.65;color:#475569">' .
+                        /* translators: %s: site name. */
+                        esc_html( sprintf( __( '%s sent this message through your mail server. Contact forms, password resets and every other WordPress email go out the same way.', 'bcs-smtp-manager' ), $site_name ) ) . '</p>
+      </td></tr>
+      <tr><td class="bcs-pad" style="padding:26px 40px 0">
+        ' . $T::details( array(
+                        array( __( 'Sent to', 'bcs-smtp-manager' ), $to, true ),
+                        array( __( 'Mail server', 'bcs-smtp-manager' ), $server, true ),
+                        array( __( 'Sent by', 'bcs-smtp-manager' ), $info['plugin'] ),
+                        array( __( 'Time', 'bcs-smtp-manager' ), $timestamp ),
+                ) ) . '
+      </td></tr>
+      <tr><td class="bcs-pad" style="padding:28px 40px 36px">
+        ' . $T::button( $T::settings_url( 'email-log' ), __( 'Open the email log', 'bcs-smtp-manager' ) ) . '
+      </td></tr>';
+
+                return $T::document( array(
+                        'title'     => __( 'Test email', 'bcs-smtp-manager' ),
+                        /* translators: %s: site name. */
+                        'preheader' => sprintf( __( 'Good news: %s can send email. This test arrived through your mail server.', 'bcs-smtp-manager' ), $site_name ),
+                        'label'     => __( 'Test email', 'bcs-smtp-manager' ),
+                        'body'      => $body,
+                        'footer'    => $T::footer( $T::settings_url( 'connection' ), __( 'Connection settings', 'bcs-smtp-manager' ) ),
+                ) );
         }
 
@@ -862 +1089 @@
                 }
                 // Loopback or missing SERVER_ADDR — try external lookup (e.g. local dev / Docker).
+                // Cached for a day so health checks every 15 minutes don't each make a request.
+                $cached = get_transient( 'bcs_smtp_source_ip' );
+                if ( false !== $cached ) {
+                        return $cached;
+                }
+                $ip       = 'unknown';
                 $response = wp_remote_get( 'https://api.ipify.org', array( 'timeout' => 5 ) );
                 if ( ! is_wp_error( $response ) ) {
-                        $ip = trim( wp_remote_retrieve_body( $response ) );
-                        if ( filter_var( $ip, FILTER_VALIDATE_IP ) ) { return $ip; }
-                }
-                return 'unknown';
+                        $body = trim( wp_remote_retrieve_body( $response ) );
+                        if ( filter_var( $body, FILTER_VALIDATE_IP ) ) { $ip = $body; }
+                }
+                set_transient( 'bcs_smtp_source_ip', $ip, DAY_IN_SECONDS );
+                return $ip;
         }
 }

bcs-smtp-manager/trunk/includes/class-bcs-smtp-monitor.php

@@ -44 +44 @@
 
         private function get_interval_minutes() {
-                $mins = (int) get_option( BCS_SMTP_OPT_CHECK_INTERVAL, 5 );
-                return max( 1, min( 1440, $mins ) );
+                return (int) BCS_SMTP_CHECK_INTERVAL_MINUTES;
+        }
+
+        /**
+         * Health checks run whenever the plugin is sending through a configured SMTP server.
+         *
+         * @return bool
+         */
+        public static function is_active() {
+                return (bool) get_option( 'bcs_smtp_enabled', false ) && '' !== trim( (string) get_option( 'bcs_smtp_host', '' ) );
+        }
+
+        /**
+         * Channels that receive failure alerts. Older versions stored a single channel as a string.
+         *
+         * @return string[]
+         */
+        public static function get_channels() {
+                $saved = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, array() );
+                $saved = is_array( $saved ) ? $saved : array( $saved );
+                return array_values( array_intersect( array_keys( self::channel_labels() ), $saved ) );
+        }
+
+        /**
+         * @return array Channel key => display name.
+         */
+        public static function channel_labels() {
+                return array(
+                        'slack'       => __( 'Slack', 'bcs-smtp-manager' ),
+                        'teams'       => __( 'Microsoft Teams', 'bcs-smtp-manager' ),
+                        'google_chat' => __( 'Google Chat', 'bcs-smtp-manager' ),
+                        'discord'     => __( 'Discord', 'bcs-smtp-manager' ),
+                        'custom'      => __( 'Custom webhook', 'bcs-smtp-manager' ),
+                );
+        }
+
+        /**
+         * Human list of the given channels, e.g. "Slack and Discord".
+         *
+         * @param  string[] $channels
+         * @return string
+         */
+        public static function channel_list_label( $channels ) {
+                $labels = self::channel_labels();
+                $names  = array();
+                foreach ( $channels as $ch ) {
+                        if ( isset( $labels[ $ch ] ) ) {
+                                $names[] = $labels[ $ch ];
+                        }
+                }
+                return wp_sprintf_l( '%l', $names );
+        }
+
+        /**
+         * Book the next scheduled check one interval after a check that just ran. Every place that
+         * records a check calls this (cron runs late, and manual checks happen any time), so
+         * "last check" and "next check" always add up to the interval.
+         */
+        public function schedule_next_check() {
+                wp_clear_scheduled_hook( 'bcs_smtp_health_check' );
+                if ( self::is_active() ) {
+                        wp_schedule_event( time() + $this->get_interval_minutes() * 60, 'bcs_smtp_monitor', 'bcs_smtp_health_check' );
+                }
         }
 
         public function maybe_schedule_event() {
-                $enabled = get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false );
+                $enabled = self::is_active();
                 $next    = wp_next_scheduled( 'bcs_smtp_health_check' );
 
@@ -64 +125 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function run_health_check() {
-                if ( ! get_option( BCS_SMTP_OPT_MONITOR_ENABLED, false ) ) {
-                        return;
+        /**
+         * @param  bool $force True for a manual "Run Health Check Now" — runs even when scheduled
+         *                     monitoring is off or a cron check holds the lock.
+         * @return array|null  The connection-test result, or null when the check was skipped.
+         */
+        public function run_health_check( $force = false ) {
+                if ( ! $force && ! self::is_active() ) {
+                        return null;
                 }
 
                 // Prevent concurrent runs (WP-Cron + manual AJAX can overlap).
-                if ( get_transient( 'bcs_smtp_check_lock' ) ) {
-                        return;
+                if ( ! $force && get_transient( 'bcs_smtp_check_lock' ) ) {
+                        return null;
                 }
                 $mins = $this->get_interval_minutes();
@@ -81 +147 @@
                 update_option( BCS_SMTP_OPT_LAST_CHECK, time() );
                 update_option( BCS_SMTP_OPT_LAST_CHECK_SUCCESS, $result['success'] );
+                $this->schedule_next_check();
 
                 if ( $result['success'] ) {
@@ -89 +156 @@
 
                 delete_transient( 'bcs_smtp_check_lock' );
+                return $result;
         }
 
@@ -104 +172 @@
                 update_option( BCS_SMTP_OPT_CONSECUTIVE_FAILURES, $failures );
 
-                $threshold = (int) get_option( BCS_SMTP_OPT_FAILURE_THRESHOLD, 2 );
+                $threshold = (int) BCS_SMTP_FAILURE_THRESHOLD;
 
                 if ( $failures >= $threshold ) {
@@ -149 +217 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function send_alert( $result, $failures, $external_down = false ) {
+        /**
+         * Dispatch a failure alert to every selected channel.
+         *
+         * @param  array $result
+         * @param  int   $failures
+         * @param  bool  $external_down
+         * @param  bool  $is_test True for "Send test alert": ignores the one-per-outage limit and doesn't count toward it.
+         * @return array|\WP_Error Channel key => true or WP_Error, or a WP_Error when nothing was attempted.
+         */
+        public function send_alert( $result, $failures, $external_down = false, $is_test = false ) {
                 if ( ! get_option( BCS_SMTP_OPT_ALERT_CHANNEL_ENABLED, false ) ) {
-                        return;
-                }
-
-                $channel = get_option( BCS_SMTP_OPT_ALERT_CHANNEL, 'none' );
-                if ( 'none' === $channel ) {
-                        return;
-                }
-
-                // Respect the max notification cap (0 = unlimited).
-                $max_count  = (int) get_option( BCS_SMTP_OPT_MAX_ALERT_COUNT, 0 );
+                        return new \WP_Error( 'bcs_alert_disabled', __( 'Failure alerts are turned off.', 'bcs-smtp-manager' ) );
+                }
+
+                $channels = self::get_channels();
+                if ( ! $channels ) {
+                        return new \WP_Error( 'bcs_alert_no_channel', __( 'No alert channel selected.', 'bcs-smtp-manager' ) );
+                }
+
+                // One alert per outage; the counter resets when a check passes again.
+                $max_count  = (int) BCS_SMTP_MAX_ALERTS_PER_OUTAGE;
                 $sent_count = (int) get_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, 0 );
-                if ( $max_count > 0 && $sent_count >= $max_count ) {
-                        return;
-                }
-
-                $payload = $this->build_alert_payload( $result, $failures, $external_down );
-
-                switch ( $channel ) {
-                        case 'slack':
-                                $this->send_slack( $payload );
-                                break;
-                        case 'teams':
-                                $this->send_teams( $payload );
-                                break;
-                        case 'google_chat':
-                                $this->send_google_chat( $payload );
-                                break;
-                        case 'discord':
-                                $this->send_discord( $payload );
-                                break;
-                        case 'custom':
-                                $this->send_custom_webhook( $payload );
-                                break;
-                }
-
-                update_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, $sent_count + 1 );
+                if ( ! $is_test && $max_count > 0 && $sent_count >= $max_count ) {
+                        return new \WP_Error( 'bcs_alert_capped', __( 'Notification limit reached for this failure cycle.', 'bcs-smtp-manager' ) );
+                }
+
+                $payload = $this->build_alert_payload( $result, $failures, $external_down, $is_test );
+                $senders = array(
+                        'slack'       => 'send_slack',
+                        'teams'       => 'send_teams',
+                        'google_chat' => 'send_google_chat',
+                        'discord'     => 'send_discord',
+                        'custom'      => 'send_custom_webhook',
+                );
+
+                $results   = array();
+                $delivered = false;
+                foreach ( $channels as $channel ) {
+                        $results[ $channel ] = $this->{ $senders[ $channel ] }( $payload );
+                        $delivered           = $delivered || true === $results[ $channel ];
+                }
+
+                // Only a delivered alert counts toward the limit, so a webhook outage doesn't use it up.
+                if ( $delivered && ! $is_test ) {
+                        update_option( BCS_SMTP_OPT_ALERT_SENT_COUNT, $sent_count + 1 );
+                }
+                return $results;
+        }
+
+        /**
+         * POST a JSON body to a webhook and turn the response into true or a descriptive WP_Error.
+         *
+         * @param  string $webhook
+         * @param  array  $body
+         * @return true|\WP_Error
+         */
+        private function post_webhook( $webhook, $body ) {
+                $response = wp_safe_remote_post( $webhook, array(
+                        'body'    => wp_json_encode( $body ),
+                        'headers' => array( 'Content-Type' => 'application/json' ),
+                        'timeout' => 10,
+                ) );
+                if ( is_wp_error( $response ) ) {
+                        /* translators: %s: transport error message. */
+                        return new \WP_Error( 'bcs_alert_transport', sprintf( __( 'Webhook request failed: %s', 'bcs-smtp-manager' ), $response->get_error_message() ) );
+                }
+                $code = (int) wp_remote_retrieve_response_code( $response );
+                if ( $code < 200 || $code >= 300 ) {
+                        $detail = trim( wp_strip_all_tags( (string) wp_remote_retrieve_body( $response ) ) );
+                        /* translators: 1: HTTP status code, 2: response body excerpt. */
+                        return new \WP_Error( 'bcs_alert_http', sprintf( __( 'Webhook returned HTTP %1$d. %2$s', 'bcs-smtp-manager' ), $code, mb_substr( $detail, 0, 200 ) ) );
+                }
+                return true;
+        }
+
+        /** @return \WP_Error For a channel whose webhook URL is missing or not on the provider's domain. */
+        private function missing_webhook_error( $label ) {
+                /* translators: %s: channel name, e.g. Slack. */
+                return new \WP_Error( 'bcs_alert_no_url', sprintf( __( 'No valid %s webhook URL is saved — enter it in the Alerts tab and click Save Alert Settings.', 'bcs-smtp-manager' ), $label ) );
         }
 
@@ -213 +322 @@
                 if ( 'teams' === $channel ) {
                         // Microsoft has used several domains for Incoming Webhooks / Workflows over time.
-                        foreach ( array( 'webhook.office.com', 'office.com', 'logic.azure.com' ) as $suffix ) {
+                        foreach ( array( 'webhook.office.com', 'office.com', 'logic.azure.com', 'api.powerplatform.com' ) as $suffix ) {
                                 if ( $host === $suffix || ( strlen( $host ) > strlen( $suffix ) + 1 && '.' . $suffix === substr( $host, -( strlen( $suffix ) + 1 ) ) ) ) {
                                         return true;
@@ -250 +359 @@
         /* ─────────────────────────────────────────────────────────────────── */
 
-        public function build_alert_payload( $result, $failures, $external_down = false ) {
+        /**
+         * Everything an alert needs, in one place. The chat channels all show the same message
+         * (title, explanation, fields, link); the custom webhook keeps its machine-readable keys.
+         *
+         * @param  array $result        Connection-test result.
+         * @param  int   $failures      Consecutive failed checks.
+         * @param  bool  $external_down True when the provider's status page reports a problem.
+         * @param  bool  $is_test       True for "Send test alert".
+         * @return array
+         */
+        public function build_alert_payload( $result, $failures, $external_down = false, $is_test = false ) {
                 $info       = $this->mailer->detect_smtp_plugin();
                 $site_name  = get_bloginfo( 'name' );
                 $site_url   = get_bloginfo( 'url' );
-                $timestamp  = current_time( 'M j, Y \a\t g:i A' );
-                $fail_label = $this->mailer->label_failure_type( isset( $result['failure_type'] ) ? $result['failure_type'] : '' );
-                $ext_note   = $external_down ? ' (External SMTP service may be down — check provider status.)' : '';
+                $type       = isset( $result['failure_type'] ) ? $result['failure_type'] : '';
+                $mailbox    = isset( $result['mailbox'] ) ? $result['mailbox'] : $info['mailbox'];
+                $smtp_host  = isset( $result['smtp_host'] ) ? $result['smtp_host'] : $info['host'];
+                $smtp_port  = isset( $result['smtp_port'] ) ? $result['smtp_port'] : $info['port'];
+                $error_msg  = isset( $result['error_msg'] ) ? $result['error_msg'] : __( 'No details available.', 'bcs-smtp-manager' );
+                $when       = wp_date( get_option( 'date_format', 'M j, Y' ) . ' ' . get_option( 'time_format', 'g:i a' ) );
+                $server     = $smtp_host ? $smtp_host . ( $smtp_port ? ':' . $smtp_port : '' ) : __( 'Not set', 'bcs-smtp-manager' );
+
+                if ( $is_test ) {
+                        /* translators: %s: site name. */
+                        $title   = sprintf( __( 'Test alert from %s', 'bcs-smtp-manager' ), $site_name );
+                        $summary = __( 'Your email alerts are working. If email stops sending on this site, an alert like this one will arrive here. No action needed.', 'bcs-smtp-manager' );
+                        $fields  = array(
+                                __( 'Mail server', 'bcs-smtp-manager' ) => $server,
+                                __( 'Sending as', 'bcs-smtp-manager' )  => $mailbox,
+                                __( 'Sent', 'bcs-smtp-manager' )        => $when,
+                        );
+                } else {
+                        /* translators: %s: site name. */
+                        $title   = sprintf( __( 'Email is failing on %s', 'bcs-smtp-manager' ), $site_name );
+                        $summary = __( 'WordPress can’t send email through your mail server, so emails from your site may not arrive. Check the error below.', 'bcs-smtp-manager' );
+                        $fields  = array(
+                                __( 'Problem', 'bcs-smtp-manager' )     => $this->problem_label( $type ),
+                                __( 'Error', 'bcs-smtp-manager' )       => $error_msg,
+                                __( 'Mail server', 'bcs-smtp-manager' ) => $server,
+                                __( 'Sending as', 'bcs-smtp-manager' )  => $mailbox,
+                                __( 'Detected', 'bcs-smtp-manager' )    => $when,
+                        );
+                }
 
                 return array(
-                        'site_name'     => $site_name,
-                        'site_url'      => $site_url,
-                        'timestamp'     => $timestamp,
-                        'mailbox'       => isset( $result['mailbox'] )   ? $result['mailbox']   : $info['mailbox'],
-                        'smtp_host'     => isset( $result['smtp_host'] ) ? $result['smtp_host'] : $info['host'],
-                        'smtp_port'     => isset( $result['smtp_port'] ) ? $result['smtp_port'] : $info['port'],
-                        'plugin'        => $info['plugin'],
-                        'error_msg'     => isset( $result['error_msg'] ) ? $result['error_msg'] : 'No details available.',
-                        'failure_type'  => $fail_label,
-                        'source_ip'     => isset( $result['source_ip'] ) ? $result['source_ip'] : '—',
-                        'failures'      => $failures,
-                        'external_down' => $external_down,
-                        'ext_note'      => $ext_note,
-                );
+                        // Shared message for the chat channels.
+                        'is_test'        => $is_test,
+                        'title'          => $title,
+                        'summary'        => $summary,
+                        'fields'         => $fields,
+                        'note'           => $external_down ? __( 'Your email provider’s status page also reports a problem, so this may be an outage on their side.', 'bcs-smtp-manager' ) : '',
+                        'footer'         => sprintf( '%s · %s', $site_name, preg_replace( '#^https?://#', '', $site_url ) ),
+                        // Machine-readable values for the custom webhook (keys unchanged since 1.1).
+                        'site_name'      => $site_name,
+                        'site_url'       => $site_url,
+                        'timestamp'      => current_time( 'M j, Y \a\t g:i A' ),
+                        'mailbox'        => $mailbox,
+                        'smtp_host'      => $smtp_host,
+                        'smtp_port'      => $smtp_port,
+                        'plugin'         => $info['plugin'],
+                        'error_msg'      => $error_msg,
+                        'failure_type'   => $this->mailer->label_failure_type( $type ),
+                        'source_ip'      => isset( $result['source_ip'] ) ? $result['source_ip'] : '',
+                        'failures'       => $failures,
+                        'external_down'  => $external_down,
+                );
+        }
+
+        /**
+         * What went wrong, in plain words, for the Problem line of an alert.
+         *
+         * @param  string $type Failure type from the connection test.
+         * @return string
+         */
+        private function problem_label( $type ) {
+                $labels = array(
+                        'auth_failure'     => __( 'Sign-in failed: the username or password wasn’t accepted', 'bcs-smtp-manager' ),
+                        'smtp_rejection'   => __( 'The mail server rejected the email', 'bcs-smtp-manager' ),
+                        'plugin_failure'   => __( 'Couldn’t connect to the mail server', 'bcs-smtp-manager' ),
+                        'mail_unavailable' => __( 'PHP mail() isn’t available on this server', 'bcs-smtp-manager' ),
+                        'not_configured'   => __( 'SMTP isn’t set up yet', 'bcs-smtp-manager' ),
+                );
+                return isset( $labels[ $type ] ) ? $labels[ $type ] : __( 'Email couldn’t be sent', 'bcs-smtp-manager' );
+        }
+
+        /**
+         * Slack treats <, > and & as control characters in message text.
+         *
+         * @param  string $text
+         * @return string
+         */
+        private static function slack_escape( $text ) {
+                return str_replace( array( '&', '<', '>' ), array( '&amp;', '&lt;', '&gt;' ), (string) $text );
         }
 
@@ -282 +461 @@
                 $webhook = get_option( BCS_SMTP_OPT_SLACK_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'slack' ) ) {
-                        return;
-                }
-
-                $text = sprintf(
-                        ":rotating_light: *WordPress SMTP Alert — %s*\n" .
-                        ">*Time:* %s\n" .
-                        ">*Site:* <%s|%s>\n" .
-                        ">*Sending mailbox:* `%s`\n" .
-                        ">*SMTP host:* `%s:%s`\n" .
-                        ">*Plugin:* %s\n" .
-                        ">*Error:* %s\n" .
-                        ">*Failure type:* %s\n" .
-                        ">*Source IP:* %s\n" .
-                        ">*Consecutive failures:* %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'], $payload['site_name'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'text' => $text ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
+                        return $this->missing_webhook_error( 'Slack' );
+                }
+
+                $icon  = $payload['is_test'] ? '✅' : '🔴';
+                $lines = array();
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $lines[] = '*' . self::slack_escape( $label ) . ':* ' . self::slack_escape( $value );
+                }
+
+                $blocks = array(
+                        array( 'type' => 'header', 'text' => array( 'type' => 'plain_text', 'text' => $icon . ' ' . $payload['title'], 'emoji' => true ) ),
+                        array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => self::slack_escape( $payload['summary'] ) ) ),
+                        array( 'type' => 'divider' ),
+                        array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => implode( "\n", $lines ) ) ),
+                );
+                if ( $payload['note'] ) {
+                        $blocks[] = array( 'type' => 'section', 'text' => array( 'type' => 'mrkdwn', 'text' => '⚠️ ' . self::slack_escape( $payload['note'] ) ) );
+                }
+                $blocks[] = array( 'type' => 'context', 'elements' => array( array( 'type' => 'mrkdwn', 'text' => self::slack_escape( $payload['footer'] ) ) ) );
+
+                // "text" is the notification preview and the fallback for clients without blocks.
+                return $this->post_webhook( $webhook, array(
+                        'text'   => $icon . ' ' . $payload['title'],
+                        'blocks' => $blocks,
                 ) );
         }
@@ -323 +495 @@
                 $webhook = get_option( BCS_SMTP_OPT_TEAMS_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'teams' ) ) {
-                        return;
-                }
-
-                $card = array(
-                        '@type'      => 'MessageCard',
-                        '@context'   => 'http://schema.org/extensions',
-                        'themeColor' => 'FF0000',
-                        'summary'    => 'WordPress SMTP Failure Alert',
-                        'sections'   => array(
+                        return $this->missing_webhook_error( 'Teams' );
+                }
+
+                // Adaptive Card in a message envelope — accepted by Power Automate "Workflows" webhooks
+                // (the replacement for the retired Office 365 connectors) and by legacy connector URLs alike.
+                $facts = array();
+                foreach ( $payload['fields'] as $title => $value ) {
+                        $facts[] = array( 'title' => (string) $title, 'value' => (string) $value );
+                }
+
+                $body = array(
+                        array(
+                                'type'   => 'TextBlock',
+                                'text'   => ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . $payload['title'],
+                                'weight' => 'Bolder',
+                                'size'   => 'Large',
+                                'color'  => $payload['is_test'] ? 'Good' : 'Attention',
+                                'wrap'   => true,
+                        ),
+                        array( 'type' => 'TextBlock', 'text' => $payload['summary'], 'wrap' => true, 'spacing' => 'Small' ),
+                        array( 'type' => 'FactSet', 'facts' => $facts, 'spacing' => 'Medium' ),
+                );
+                if ( $payload['note'] ) {
+                        $body[] = array( 'type' => 'TextBlock', 'text' => '⚠️ ' . $payload['note'], 'wrap' => true, 'color' => 'Warning' );
+                }
+                $body[] = array( 'type' => 'TextBlock', 'text' => $payload['footer'], 'isSubtle' => true, 'size' => 'Small', 'wrap' => true );
+
+                return $this->post_webhook( $webhook, array(
+                        'type'        => 'message',
+                        'attachments' => array(
                                 array(
-                                        'activityTitle'    => sprintf( '🚨 SMTP Failure — %s', $payload['site_name'] ),
-                                        'activitySubtitle' => $payload['timestamp'],
-                                        'facts'            => array(
-                                                array( 'name' => 'Site',                 'value' => $payload['site_url'] ),
-                                                array( 'name' => 'Sending Mailbox',      'value' => $payload['mailbox'] ),
-                                                array( 'name' => 'SMTP Host',            'value' => $payload['smtp_host'] . ':' . $payload['smtp_port'] ),
-                                                array( 'name' => 'Plugin Used',          'value' => $payload['plugin'] ),
-                                                array( 'name' => 'Error',                'value' => $payload['error_msg'] ),
-                                                array( 'name' => 'Failure Type',         'value' => $payload['failure_type'] ),
-                                                array( 'name' => 'Source IP',            'value' => $payload['source_ip'] ),
-                                                array( 'name' => 'Consecutive Failures', 'value' => (string) $payload['failures'] ),
+                                        'contentType' => 'application/vnd.microsoft.card.adaptive',
+                                        'contentUrl'  => null,
+                                        'content'     => array(
+                                                '$schema' => 'http://adaptivecards.io/schemas/adaptive-card.json',
+                                                'type'    => 'AdaptiveCard',
+                                                'version' => '1.4',
+                                                'msteams' => array( 'width' => 'Full' ),
+                                                'body'    => $body,
                                         ),
-                                        'markdown' => true,
                                 ),
                         ),
-                );
-
-                if ( $payload['external_down'] ) {
-                        $card['sections'][] = array(
-                                'text' => '⚠️ External SMTP service may be down — check your provider\'s status page before escalating.',
-                        );
-                }
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( $card ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
                 ) );
         }
@@ -370 +547 @@
                 $webhook = get_option( BCS_SMTP_OPT_GOOGLE_CHAT_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'google_chat' ) ) {
-                        return;
-                }
-
-                $text = sprintf(
-                        "🚨 *WordPress SMTP Alert — %s*\n" .
-                        "*Time:* %s\n" .
-                        "*Site:* <%s|%s>\n" .
-                        "*Sending mailbox:* `%s`\n" .
-                        "*SMTP host:* `%s:%s`\n" .
-                        "*Plugin:* %s\n" .
-                        "*Error:* %s\n" .
-                        "*Failure type:* %s\n" .
-                        "*Source IP:* %s\n" .
-                        "*Consecutive failures:* %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'], $payload['site_name'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'text' => $text ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
-                ) );
+                        return $this->missing_webhook_error( 'Google Chat' );
+                }
+
+                $lines = array( ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . '*' . $payload['title'] . '*', $payload['summary'], '' );
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $lines[] = '*' . $label . ':* ' . $value;
+                }
+                if ( $payload['note'] ) {
+                        $lines[] = '';
+                        $lines[] = '⚠️ ' . $payload['note'];
+                }
+                $lines[] = '';
+                $lines[] = $payload['footer'];
+
+                return $this->post_webhook( $webhook, array( 'text' => implode( "\n", $lines ) ) );
         }
 
@@ -411 +571 @@
                 $webhook = get_option( BCS_SMTP_OPT_DISCORD_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'discord' ) ) {
-                        return;
-                }
-
-                // Discord messages don't support Slack-style <url|text> link aliasing — the
-                // site URL is appended plainly so it still autolinks.
-                $content = sprintf(
-                        "🚨 **WordPress SMTP Alert — %s**\n" .
-                        "**Time:** %s\n" .
-                        "**Site:** %s\n" .
-                        "**Sending mailbox:** `%s`\n" .
-                        "**SMTP host:** `%s:%s`\n" .
-                        "**Plugin:** %s\n" .
-                        "**Error:** %s\n" .
-                        "**Failure type:** %s\n" .
-                        "**Source IP:** %s\n" .
-                        "**Consecutive failures:** %d%s",
-                        $payload['site_name'],
-                        $payload['timestamp'],
-                        $payload['site_url'],
-                        $payload['mailbox'],
-                        $payload['smtp_host'], $payload['smtp_port'],
-                        $payload['plugin'],
-                        $payload['error_msg'],
-                        $payload['failure_type'],
-                        $payload['source_ip'],
-                        $payload['failures'],
-                        $payload['ext_note']
-                );
-
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( array( 'content' => $content ) ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
+                        return $this->missing_webhook_error( 'Discord' );
+                }
+
+                $fields = array();
+                foreach ( $payload['fields'] as $label => $value ) {
+                        $fields[] = array( 'name' => (string) $label, 'value' => (string) $value, 'inline' => false );
+                }
+                $description = $payload['summary'] . ( $payload['note'] ? "\n\n⚠️ " . $payload['note'] : '' );
+
+                // An embed shows as a card with a coloured edge: red for a failure, green for a test.
+                return $this->post_webhook( $webhook, array(
+                        'embeds' => array(
+                                array(
+                                        'title'       => ( $payload['is_test'] ? '✅ ' : '🔴 ' ) . $payload['title'],
+                                        'description' => $description,
+                                        'color'       => $payload['is_test'] ? 0x2EA44F : 0xE5484D,
+                                        'fields'      => $fields,
+                                        'footer'      => array( 'text' => $payload['footer'] ),
+                                ),
+                        ),
                 ) );
         }
@@ -459 +606 @@
                 $webhook = get_option( BCS_SMTP_OPT_CUSTOM_WEBHOOK_URL, '' );
                 if ( empty( $webhook ) || ! self::is_allowed_webhook_host( $webhook, 'custom' ) ) {
-                        return;
+                        return $this->missing_webhook_error( 'custom' );
                 }
 
                 $body = array(
                         'event'                 => 'smtp_failure',
+                        'test'                  => $payload['is_test'],
                         'site_name'             => $payload['site_name'],
                         'site_url'              => $payload['site_url'],
@@ -478 +626 @@
                 );
 
-                wp_safe_remote_post( $webhook, array(
-                        'body'    => wp_json_encode( $body ),
-                        'headers' => array( 'Content-Type' => 'application/json' ),
-                        'timeout' => 10,
-                ) );
+                return $this->post_webhook( $webhook, $body );
         }
 }

bcs-smtp-manager/trunk/includes/class-bcs-smtp-wp-cli.php

@@ -10 +10 @@
 
 /**
- * Manage ByteCoreStack SMTP email sending, resending, and the email log.
+ * Manage ByteCoreStack SMTP email sending and the email log.
  */
 class BCS_SMTP_WP_CLI_Command {
@@ -38 +38 @@
                 // registered the real mailer's wp_mail/phpmailer_init/wp_mail_failed hooks, which is what
                 // actually logs this send. Calling init_hooks() again on a second instance would register
-                // a duplicate set of hooks and log two rows per send (see resend() below for the same note).
+                // a duplicate set of hooks and log two rows per send.
                 $mailer = new BCS_SMTP_Mailer();
                 $result = $mailer->send_test_email( $to );
@@ -50 +50 @@
 
         /**
-         * Resend a previously logged, failed email using its stored content.
-         *
-         * Requires "Store failed email content" to have been enabled (Config tab)
-         * at the time the original email failed — otherwise no content was stored.
+         * List recent email log entries.
          *
          * ## OPTIONS
          *
-         * <log_id>
-         * : The email log entry ID to resend (see `wp bcs-smtp log list`).
-         *
-         * ## EXAMPLES
-         *
-         *     wp bcs-smtp resend 482
-         *
-         * @when after_wp_load
-         */
-        public function resend( $args ) {
-                $log_id = isset( $args[0] ) ? absint( $args[0] ) : 0;
-                if ( ! $log_id ) {
-                        WP_CLI::error( 'Please provide a log entry ID.' );
-                        return;
-                }
-
-                // No init_hooks() here either — see the note in test() above. resend_stored_email()
-                // only needs $db directly (to read/update the log row); the actual send is logged
-                // by the already-registered global mailer instance's hooks, same as any other wp_mail() call.
-                $db     = new BCS_SMTP_DB();
-                $mailer = new BCS_SMTP_Mailer( $db );
-                $result = $mailer->resend_stored_email( $log_id );
-
-                if ( $result['success'] ) {
-                        WP_CLI::success( $result['message'] );
-                } else {
-                        WP_CLI::error( $result['message'] );
-                }
-        }
-
-        /**
-         * List recent email log entries.
-         *
-         * ## OPTIONS
+         * [<action>]
+         * : What to do with the log.
+         * ---
+         * default: list
+         * options:
+         *   - list
+         * ---
          *
          * [--status=<status>]

bcs-smtp-manager/trunk/readme.txt

@@ -1 +1 @@
 === ByteCoreStack - SMTP & Health Monitor ===
 Contributors: bytecorestack
-Tags: smtp, wordpress smtp, email log, smtp alerts, email monitoring
+Tags: smtp, email log, email, email alerts, email monitoring
 Requires at least: 5.3
-Tested up to: 7.0
+Tested up to: 7.1
 Requires PHP: 7.2
-Stable tag: 1.2.1
+Stable tag: 1.3.0
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
-The WordPress SMTP plugin that logs every email, monitors delivery health, and alerts you on Slack, Teams, Discord & Google Chat when it fails.
+Fix WordPress email with SMTP, log every email with its full message, and get Slack, Teams, Discord or Google Chat alerts when sending fails.
 
 == Description ==
 
-**Is your WordPress site silently failing to send emails?** Order confirmations, password resets, contact form notifications, shipping updates — when they don't land in the inbox, you're usually the last person to find out, often from an angry customer. ByteCoreStack - SMTP & Health Monitor fixes email deliverability at the source, logs every single send, and alerts your team the instant delivery breaks again — on Slack, Microsoft Teams, Google Chat, or Discord, at no extra cost.
-
-This plugin doesn't stop the moment your email starts sending again. It keeps going: continuous SMTP health monitoring, a fully searchable email log with CSV export, scheduled delivery reports, and real-time failure alerts, all included.
-
-= Why your WordPress emails are failing =
-
-By default, WordPress sends email through your server's PHP `mail()` function. PHP mail has no authentication — no SPF, no DKIM, nothing that proves to Gmail, Outlook, or Yahoo that the message is legitimate. Most inbox providers either bin it as spam or drop it outright. That's why "WordPress not sending email" is one of the most common WordPress problems there is, and why every serious site needs proper SMTP — authenticated, encrypted mail delivery through a real mail server or transactional email provider.
-
-= How this plugin fixes it =
-
-The plugin reconfigures `wp_mail()` to send through the authenticated SMTP server you configure — your hosting provider, Gmail, Microsoft 365, or any transactional email service (SendGrid, Mailgun, Amazon SES, Brevo, Zoho, SMTP.com, and others all work over standard SMTP). Every email is logged with its delivery status, and an automated health check keeps testing your connection in the background — so instead of finding out about a broken mail server from an angry customer, you find out from a Slack message.
-
-= ✅ Core features =
-
-* **Universal SMTP connection** — host, port, and encryption (SSL / TLS / none) for any standard SMTP provider, with auto-TLS upgrade support
-* **Built-in quick-reference for popular providers** — Gmail / Google Workspace, Microsoft 365 / Outlook, Yahoo Mail, SendGrid, Amazon SES, and Mailgun host/port/encryption settings, right inside the settings page
-* **Full email log** — date, subject, sender, recipient, delivery status, and the actual error message for every email `wp_mail()` sends
-* **AJAX-driven search and filtering** — live search-as-you-type plus date-range presets (today through all time), no page reloads
-* **Resend failed emails** — an opt-in setting stores the content of an email only if it fails, so you can resend it straight from the Email Log instead of it being a dead end. Off by default; stored content auto-purges after a configurable number of days
-* **CSV export** of the filtered log for record-keeping or support tickets
-* **One-click "Send Test Email"** to verify your configuration instantly, with failure-type classification (authentication failure, SMTP rejection, or plugin/system error) so you know exactly what's wrong
-* **Scheduled HTML delivery reports** — daily, weekly, or monthly summary emails with a visual chart of sent/failed/unconfirmed volume
-* **Automatic log retention** — keep the last 30 days or the last 1,000 records, pruned automatically
-* **WordPress Dashboard widget** — SMTP health and 30-day send volume at a glance, without opening the plugin's settings page
-* **WP-CLI support** — `wp bcs-smtp test`, `wp bcs-smtp resend <id>`, and `wp bcs-smtp log list` for scripting test sends, resends, and log lookups from the command line or a CI/deploy pipeline
-* **Encrypted password storage** — your SMTP password is encrypted at rest, not stored as plaintext
-* **Dark-mode admin UI** built for clarity, not just decoration
-
-= 🔔 Real-time failure alerts =
-
-Included at no extra cost:
-
-* **Automated SMTP health checks** via WordPress Cron — a real connection + EHLO + STARTTLS + AUTH test on the interval you choose, with no test email sent on success
-* **Five alert channels**: Slack, Microsoft Teams, Google Chat, Discord, and a Custom Webhook option that POSTs a structured JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures`, and more) for Zapier, Make, n8n, or your own endpoint
-* **Configurable failure threshold** — alert after 1 failure or wait for N consecutive failures, your choice
-* **Notification cap** so a prolonged outage doesn't spam your channel forever
-* **External provider status check** — when an alert fires, the plugin checks whether the failure looks like an outage on your provider's end before notifying you
-* All webhook URLs are validated against the provider's real domain and sent over `wp_safe_remote_post()`, so a misconfigured webhook can't be used to reach internal network addresses
-
-= 🔌 Works with everything that uses wp_mail() =
-
-WooCommerce, Contact Form 7, WPForms, Gravity Forms, Elementor Forms, user registration/password reset emails, and literally any other plugin or theme that sends mail through WordPress's standard `wp_mail()` function — because that's exactly what this plugin hooks into. Nothing to reconfigure on the form/store plugin side.
-
-= 🌐 Supported SMTP providers =
-
-Anything that speaks standard SMTP with host/port/username/password authentication works, because the plugin talks SMTP directly rather than locking you into a specific provider's proprietary API:
-
-* [Gmail / Google Workspace](https://myaccount.google.com/apppasswords) (App Passwords, or [Workspace SMTP relay](https://support.google.com/a/answer/2956491) for higher volume)
-* [Microsoft 365 / Outlook](https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365)
+**Is your WordPress site quietly failing to send email?** Order confirmations, password resets and contact form messages that never arrive usually go unnoticed until a customer complains. ByteCoreStack - SMTP & Health Monitor sends your WordPress email through a real, authenticated SMTP server, keeps a searchable log of every email with its full message, and tells your team on Slack, Microsoft Teams, Google Chat or Discord the moment sending breaks.
+
+= Why WordPress emails fail =
+
+Out of the box, WordPress sends email with PHP `mail()`. It has no authentication, so Gmail, Outlook and Yahoo often send those messages to spam or reject them, and many hosts disable it entirely. That's why "WordPress not sending email" is one of the most common WordPress problems. The fix is SMTP: sending through a real mail server that signs in, such as Gmail, Microsoft 365, your host's mail server or a transactional email service.
+
+= Set up in about a minute =
+
+1. Pick your provider. The server, port and encryption fill in for you, with sign-in tips for that provider.
+2. Enter your username and password (or app password / API key) and click **Save and test connection**. The plugin signs in to your server right away and tells you whether it worked.
+3. Send a test email to confirm a real message arrives.
+
+= Features =
+
+**Reliable sending**
+
+* Send all WordPress email through any SMTP server: SSL, TLS or no encryption, with automatic TLS upgrade
+* Ready-made settings for Gmail / Google Workspace, Microsoft 365 / Outlook, SendGrid, Amazon SES, Mailgun, Brevo, Zoho Mail and Yahoo Mail, plus any other SMTP server
+* Test email with a plain explanation when it fails: sign-in failed, rejected by the server, or couldn't connect, along with the server's own reply
+* SMTP password encrypted at rest
+
+**Email log**
+
+* Every email WordPress sends, grouped by day, with its delivery status and the server's reason for any failure
+* Open any email on its own page: a safe preview of the message, its HTML source, a text version, every header and attachment names, with a phone-width preview to check mobile layout
+* Search, filter by status (with counts) and date range, and export to CSV
+* Keeps the last 90 days and removes older entries automatically
+
+**Health checks and failure alerts**
+
+* Automatic health check every 15 minutes once SMTP is set up: a real sign-in and sender check, with no email sent
+* Alerts to Slack, Microsoft Teams, Google Chat, Discord and a custom webhook (for Zapier, Make or n8n), as many at once as you like
+* An alert on the first failed check, and one alert per outage, so a long outage never floods your channel
+* Checks whether Microsoft 365 reports an outage before alerting, when you send through Microsoft 365
+
+**Reports**
+
+* Delivery chart and totals for the last 7, 30 or 90 days, with highlights such as your busiest day, failure-free days and how many people your email reached
+* Monthly summary email on the 1st of every month at 9:00, covering the previous month, sent to whoever you choose
+
+**Built for WordPress**
+
+* Overview screen showing whether mail is flowing, when the last and next checks run, and what's left to set up
+* Dashboard widget with SMTP health and 30-day totals
+* WP-CLI commands: `wp bcs-smtp test` and `wp bcs-smtp log list`
+* Dark, responsive admin that works on phones and tablets, with keyboard-accessible controls and bundled fonts (no external requests)
+
+= Works with any plugin that sends email =
+
+WooCommerce, Contact Form 7, WPForms, Gravity Forms, Elementor Forms, Easy Digital Downloads, membership and booking plugins, and WordPress's own password reset and new user emails all send through `wp_mail()`, so they use your SMTP connection automatically. There's nothing to change in those plugins.
+
+= Supported SMTP providers =
+
+Any provider that offers standard SMTP sign-in works:
+
+* [Gmail / Google Workspace](https://myaccount.google.com/apppasswords) (app password, or the [Workspace SMTP relay](https://support.google.com/a/answer/2956491) for higher volume)
+* [Microsoft 365 / Outlook](https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission)
 * [SendGrid](https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp)
+* [Amazon SES](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
 * [Mailgun](https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/)
-* [Amazon SES](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
 * [Brevo](https://help.brevo.com/hc/en-us/articles/209462765)
-* [Zoho Mail](https://www.zoho.com/mail/help/)
-* Yahoo Mail, SMTP.com, or your own hosting provider's mail server
-
-= 🆚 What sets this plugin apart =
-
-Getting your email sending again is only half the job. If the connection breaks next month — expired app password, host changed something, provider outage — you need to know before a customer tells you. ByteCoreStack - SMTP & Health Monitor treats failure alerting as core functionality, included for every user, because a delivery plugin that can't tell you when delivery breaks isn't finished doing its job.
-
-= Documentation & support =
-
-Full plugin details: [bytecorestack.com/plugins/smtp-manager](https://bytecorestack.com/plugins/smtp-manager/). For SMTP protocol background, see the [WordPress wp_mail() developer reference](https://developer.wordpress.org/reference/functions/wp_mail/).
+* [Zoho Mail](https://www.zoho.com/mail/help/zoho-smtp.html)
+* [Yahoo Mail](https://help.yahoo.com/kb/SLN15241.html), SMTP.com, or your web host's mail server
+
+= Privacy =
+
+Everything the plugin stores stays in your own WordPress database: your SMTP settings, and the email log (each email's date, subject, sender, recipients, delivery status, message body, headers and attachment file names). Attached files themselves are never copied. Log entries are deleted automatically after 90 days, only administrators can see them, and uninstalling the plugin removes all of its data. Nothing is sent to ByteCore Stack. See **External services** below for the services the plugin contacts.
+
+= Documentation and support =
+
+Plugin home page: [bytecorestack.com/plugins/smtp-manager](https://bytecorestack.com/plugins/smtp-manager/). For questions or bug reports, use the support forum on this plugin's WordPress.org page.
+
+= Credits =
+
+The admin screens use two fonts bundled with the plugin, both under the SIL Open Font License 1.1 (license files included in `assets/fonts`): [Outfit](https://github.com/Outfitio/Outfit-Fonts) and [Geist Mono](https://github.com/vercel/geist-font).
 
 == Installation ==
 
-1. Upload the `bcs-smtp-manager` folder to `/wp-content/plugins/`, or install directly from the WordPress Plugins screen.
-2. Activate the plugin through the **Plugins** menu in WordPress.
-3. Go to **Settings → SMTP Manager** and enter your SMTP host, port, encryption, and credentials (use the built-in provider quick-reference if you're not sure what to enter).
-4. Click **Save Settings** — the plugin runs a connection test immediately and tells you if it worked.
-5. Use **Send Test Email** to confirm an actual message is delivered end-to-end.
-6. Open the **Alerts** tab, enable a channel (Slack, Teams, Google Chat, Discord, or a custom webhook), and turn on automated health monitoring so you're notified the next time something breaks.
+1. In WordPress, go to **Plugins → Add New**, search for "ByteCoreStack SMTP" and click **Install Now**, or upload the `bcs-smtp-manager` folder to `/wp-content/plugins/`.
+2. Activate the plugin.
+3. Go to **Settings → SMTP Manager** and open the **Connection** tab. Pick your provider (Gmail, Microsoft 365, SendGrid, Amazon SES, Mailgun, Brevo, Zoho, Yahoo or another SMTP server).
+4. Enter your username and password (or app password / API key), then click **Save and test connection**.
+5. Click **Send test email** to confirm a real message arrives.
+6. Optional: open the **Alerts** tab and choose where failure alerts go, and turn on the monthly report on the **Reports** tab. Health checks start automatically.
 
 == Frequently Asked Questions ==
 
-= What is SMTP and why do I need it for WordPress? =
-SMTP (Simple Mail Transfer Protocol) is the standard, authenticated way to send email. WordPress's default `mail()` function has no authentication, which is why its messages are frequently marked as spam or rejected outright by Gmail, Outlook, and Yahoo. Routing through a real SMTP connection — your host, Gmail, Microsoft 365, or a transactional provider — fixes that.
-
-= Why isn't my WordPress site sending emails right now? =
-The most common causes are: your host has disabled the PHP `mail()` function, your SMTP credentials are wrong or expired (Gmail/Microsoft App Passwords expire or get revoked), the wrong port/encryption combination is selected, or your host blocks outbound SMTP ports entirely. Use **Send Test Email** in this plugin — it classifies the failure (authentication, rejection, or system error) so you know which of these it is instead of guessing.
-
-= Does this work with Gmail? =
-Yes. You must use a Gmail App Password — Google no longer allows regular account passwords for third-party SMTP clients. Enable 2-Step Verification on your Google account, then generate an App Password under [Security → App Passwords](https://myaccount.google.com/apppasswords).
-
-= Does this work with Outlook / Microsoft 365? =
-Yes. Use your Microsoft 365 account password or an app password. Set the host to `smtp.office365.com`, port `587`, encryption `TLS`. See Microsoft's [official SMTP relay setup guide](https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365) if you need app-specific credentials or hit a sending limit.
-
-= Does this work with Google Workspace (not just regular Gmail)? =
-Yes. Google Workspace also supports a [dedicated SMTP relay service](https://support.google.com/a/answer/2956491) for higher sending limits than a personal Gmail App Password allows — useful if you're sending a high volume of transactional email.
-
-= Does this work with SendGrid, Mailgun, Amazon SES, Brevo, or Zoho? =
-Yes — any provider that offers SMTP relay credentials works, since this plugin speaks standard SMTP rather than a provider-specific API. Grab your SMTP host/port/username/password from each provider's own setup docs:
-* [SendGrid SMTP setup](https://docs.sendgrid.com/for-developers/sending-email/getting-started-smtp)
-* [Mailgun SMTP setup](https://documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/)
-* [Amazon SES SMTP setup](https://docs.aws.amazon.com/ses/latest/dg/send-email-smtp.html)
-* [Brevo SMTP relay](https://help.brevo.com/hc/en-us/articles/209462765)
-* [Zoho Mail help center](https://www.zoho.com/mail/help/)
-
-= Does this work with WooCommerce? =
-Yes. WooCommerce order emails, and any other plugin that sends email through `wp_mail()`, automatically use the SMTP settings configured here — no separate configuration needed on the WooCommerce side.
-
-= Does this work with Contact Form 7, WPForms, Gravity Forms, or Elementor Forms? =
-Yes. Any plugin that uses the standard WordPress `wp_mail()` function routes through your configured SMTP settings automatically.
-
-= Can I use this for bulk email marketing or newsletters? =
-No. This plugin is built for transactional email — order confirmations, password resets, contact form notifications, account emails. For bulk marketing sends, use a dedicated service such as Mailchimp, Klaviyo, or Brevo's marketing product.
-
-= Can I switch from another SMTP plugin to this one? =
-Yes, and there's nothing destructive about it. Deactivate your current SMTP plugin (or leave it active and just enable this plugin's "Enable SMTP" toggle — whichever hooks `phpmailer_init` last wins), enter your SMTP credentials here, and send a test email to confirm. Nothing about switching SMTP plugins affects your site's actual email content or past history.
-
-= How does the free real-time alerting work? =
-Enable monitoring in the Alerts tab and pick a channel — Slack, Microsoft Teams, Google Chat, Discord, or a Custom Webhook. WordPress Cron then opens a real connection to your SMTP server at the interval you set (EHLO, STARTTLS, and AUTH are all tested, not just a TCP port check) with no email actually sent on a successful check. If it fails for as many consecutive checks as your configured threshold, an alert goes out immediately.
-
-= How do I set up Slack alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Slack, paste your Incoming Webhook URL, and save. Create the webhook at [api.slack.com/messaging/webhooks](https://api.slack.com/messaging/webhooks).
-
-= How do I set up Microsoft Teams alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Microsoft Teams, paste your Incoming Webhook URL, and save. Follow Microsoft's [official guide to adding an Incoming Webhook to a Teams channel](https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook) to create the URL.
-
-= How do I set up Google Chat alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Google Chat, paste your Incoming Webhook URL, and save. Follow Google's [official Chat webhooks quickstart](https://developers.google.com/workspace/chat/quickstart/webhooks) to create the URL from your Chat space's Apps & Integrations menu.
-
-= How do I set up Discord alerts? =
-In the Alerts tab, enable the Alert Channel toggle, select Discord, paste your Incoming Webhook URL, and save. Follow Discord's [official "Intro to Webhooks" guide](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks) to create the URL from your channel's Server Settings → Integrations → Webhooks.
-
-= How do I set up a custom webhook for Zapier, Make, or n8n? =
-In the Alerts tab, enable the Alert Channel toggle, select Custom Webhook, and paste the URL of your endpoint. Unlike the chat-app channels, this sends a structured JSON payload — `event`, `site_name`, `error_msg`, `consecutive_failures`, and more — built for automation tools to parse rather than for a human to read directly. Docs for the most common automation tools:
-* [Webhooks by Zapier](https://zapier.com/page/webhooks/) — trigger a Zap from this plugin's alert payload
-* [Make (Integromat) webhooks](https://www.make.com/en/help/tools/webhooks) — use a "Custom webhook" trigger module
-* [n8n Webhook node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.webhook/) — for self-hosted automation
-
-= Does this support multisite networks? =
-The plugin activates and works on individual sites within a multisite network, but there's currently no centralized network-wide settings screen — each site is configured independently.
-
-= How does log pruning work? =
-Log entries are pruned automatically once per day via WordPress Cron. Choose to keep either the last 30 days or the last 1,000 records — older entries beyond your choice are removed automatically so the table doesn't grow unbounded.
-
-= Can I resend a failed email? =
-Yes, if you've enabled "Store failed email content" in the Config tab first. This is off by default — email bodies are never stored otherwise, matching the plugin's normal metadata-only logging. When enabled, the content of an email is stored *only if it fails to send*, so a "Resend" button appears on that row in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content is auto-purged after the number of days you configure (default 7), independent of your overall log retention setting.
-
-= Can I send test emails, resend failed emails, or check the log from the command line? =
-Yes. The plugin includes WP-CLI support: `wp bcs-smtp test you@example.com` sends a test email, `wp bcs-smtp resend <id>` resends a failed email by its log ID (same requirements as the admin Resend button — "Store failed email content" must have been enabled when it failed), and `wp bcs-smtp log list` lists recent log entries with `--status`, `--days`, and `--format` options. Handy for CI/deploy pipelines or server automation.
+= Why is my WordPress site not sending emails? =
+
+The usual causes: your host has disabled PHP `mail()`, your SMTP password is wrong or has expired (Gmail and Microsoft app passwords can be revoked), the port and encryption don't match, or your host blocks outgoing SMTP ports. Send a test email from this plugin. It tells you which of these it is and shows the mail server's own reply.
+
+= What is SMTP and why do I need it? =
+
+SMTP is the standard, authenticated way to send email. WordPress's default PHP `mail()` doesn't sign in to anything, so its messages are often marked as spam or rejected. Sending through a real SMTP server (your host, Gmail, Microsoft 365 or a transactional email service) fixes that.
+
+= Does it work with Gmail? =
+
+Yes. Use a Gmail app password: Google no longer accepts your normal account password for SMTP. Turn on 2-Step Verification, then create an app password under [Security → App passwords](https://myaccount.google.com/apppasswords). Google Workspace accounts can also use the [SMTP relay service](https://support.google.com/a/answer/2956491) for higher sending limits.
+
+= Does it work with Microsoft 365 / Outlook? =
+
+Yes. Pick Microsoft 365 / Outlook and the server (`smtp.office365.com`, port 587, TLS) fills in. SMTP sign-in (SMTP AUTH) must be allowed for the mailbox in your Microsoft 365 admin center; see Microsoft's [authenticated SMTP guide](https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission).
+
+= Does it work with SendGrid, Mailgun, Amazon SES, Brevo or Zoho? =
+
+Yes. Any service that gives you SMTP credentials works. For Amazon SES, copy the SMTP endpoint for your region from the SES console, and use your SES SMTP credentials rather than your AWS access keys.
+
+= Does it work with WooCommerce, Contact Form 7, WPForms or Gravity Forms? =
+
+Yes. Any plugin that sends email through WordPress's `wp_mail()` function uses your SMTP connection automatically, with nothing to configure on their side.
+
+= Can I see the full content of an email that was sent? =
+
+Yes. Click **View** on any row of the Email log to open the email: a safe preview of the message, its HTML source, a plain-text version, every header and the names of any attachments. Failed emails also show the mail server's complete reply.
+
+= What does the email log store, and for how long? =
+
+Each entry keeps the date, subject, sender, recipients, delivery status, any error, the message body, headers and attachment file names (never the files themselves). Entries are deleted automatically after 90 days. Saved emails can include sensitive details such as password reset links or form submissions, so only administrators can view the log.
+
+= How do failure alerts work? =
+
+Health checks run automatically every 15 minutes once SMTP is set up. Each check signs in to your mail server and checks your sender address, without sending an email. If a check fails, one alert goes to every channel you picked on the Alerts tab. You won't get another until mail has recovered and broken again.
+
+= How do I set up Slack, Microsoft Teams, Google Chat or Discord alerts? =
+
+On the Alerts tab, turn on failure alerts, tick the channel and paste its incoming webhook URL. Each channel has a setup guide link next to its field:
+* [Slack incoming webhooks](https://api.slack.com/messaging/webhooks)
+* [Microsoft Teams incoming webhooks](https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incoming-webhook)
+* [Google Chat webhooks](https://developers.google.com/workspace/chat/quickstart/webhooks)
+* [Discord webhooks](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks)
+
+= Can I send alerts to Zapier, Make or n8n? =
+
+Yes. Use the custom webhook channel. It sends a JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures` and more) that automation tools can read: [Zapier webhooks](https://zapier.com/page/webhooks/), [Make webhooks](https://www.make.com/en/help/tools/webhooks), [n8n Webhook node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.webhook/).
+
+= When is the monthly report sent? =
+
+On the 1st of every month at 9:00 (your site's time zone), covering the whole previous month. "Send a report now" sends the current month so far.
+
+= Can I use it for newsletters or bulk email? =
+
+No. It's built for transactional email such as orders, password resets, form notifications and account emails. Use a dedicated email marketing service for newsletters.
+
+= Can I switch from another SMTP plugin? =
+
+Yes. Set up your connection here and send a test email, then deactivate the other SMTP plugin. Switching doesn't affect your emails or other plugins.
 
 = Is my SMTP password stored securely? =
-Yes. The password is encrypted at rest using a key derived from your WordPress installation's own salts before it's saved, not stored as plaintext.
-
-= Where are my SMTP credentials stored, and are they sent anywhere? =
-Credentials are stored in the WordPress options table (`wp_options`) on your own server using the standard `update_option()` API. They are never transmitted to ByteCore Stack or any third party — the only network connection your credentials are used for is the SMTP server you configured them for.
-
-= What external services does this plugin use? =
-See the "External Services" section below for a full breakdown — your SMTP server, and optionally whichever alert channel(s) you choose to enable.
-
-= I found a bug or have a feature request — where do I report it? =
-Use the Support forum on this plugin's WordPress.org page, or reach out via [bytecorestack.com](https://bytecorestack.com/).
-
-== External Services ==
-
-This plugin may contact the following external services. All connections are either user-initiated or require explicit configuration by the site administrator.
-
-**1. Your SMTP server (user-configured)**
-The plugin routes all WordPress emails through the SMTP server credentials you enter in Settings → SMTP Manager. The hostname, port, username, and password are provided entirely by you. No data is sent to any ByteCore Stack server.
-
-**2. Slack Incoming Webhooks (optional)**
-If you enable Slack alerts, the plugin will POST a JSON failure notification to the Slack Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Slack workspace and is created by you.
+
+Yes. It's encrypted before it's saved, using a random key the plugin creates for your site (or a `BCS_SMTP_CRYPTO_KEY` constant you can define in `wp-config.php`), and it's never sent anywhere except your own SMTP server.
+
+= Does it work on multisite? =
+
+Yes, on each site of a network. Each site is set up separately; there's no network-wide settings screen yet.
+
+= Can I use it from the command line? =
+
+Yes. `wp bcs-smtp test you@example.com` sends a test email, and `wp bcs-smtp log list` lists recent log entries, with `--status`, `--days` and `--format` options.
+
+== External services ==
+
+The plugin contacts the services below. None of them receive data from ByteCore Stack, and nothing is sent to ByteCore Stack.
+
+**1. Your SMTP server (set up by you)**
+All email WordPress sends goes through the SMTP server you enter on the Connection tab, using the credentials you provide. Health checks, run every 15 minutes once SMTP is set up, sign in to the same server without sending an email.
+
+**2. Slack (optional)**
+If you turn on Slack alerts, the plugin sends a failure notification (site name and address, time, the problem and the mail server's error, mail server and sending address) to the Slack incoming webhook URL you provide, only when a health check fails or you click "Send test alert".
 * Service: Slack Technologies, LLC
+* Terms of service: https://slack.com/terms-of-service
 * Privacy policy: https://slack.com/privacy-policy
-* Terms of service: https://slack.com/terms-of-service
-
-**3. Microsoft Teams Incoming Webhooks (optional)**
-If you enable Teams alerts, the plugin will POST a JSON failure notification to the Teams Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Teams channel and is created by you.
+
+**3. Microsoft Teams (optional)**
+If you turn on Teams alerts, the same notification is sent to the Teams webhook URL you provide, only when a health check fails or you click "Send test alert".
 * Service: Microsoft Corporation
+* Terms of service: https://www.microsoft.com/en-us/servicesagreement
 * Privacy policy: https://privacy.microsoft.com/en-us/privacystatement
+
+**4. Google Chat (optional)**
+If you turn on Google Chat alerts, the same notification is sent to the Google Chat webhook URL you provide, only when a health check fails or you click "Send test alert".
+* Service: Google LLC
+* Terms of service: https://policies.google.com/terms
+* Privacy policy: https://policies.google.com/privacy
+
+**5. Discord (optional)**
+If you turn on Discord alerts, the same notification is sent to the Discord webhook URL you provide, only when a health check fails or you click "Send test alert".
+* Service: Discord Inc.
+* Terms of service: https://discord.com/terms
+* Privacy policy: https://discord.com/privacy
+
+**6. Custom webhook (optional)**
+If you turn on the custom webhook, the notification is sent as JSON to the URL you provide (the same details, plus your server's IP address and the number of failed checks), only when a health check fails or you click "Send test alert". The URL is entirely your choice, such as Zapier, Make, n8n or your own server.
+
+**7. ipify (automatic, only on some servers)**
+The server's outgoing IP address is included in diagnostics and alerts. If your server doesn't report its own address (common on local, Docker or some proxied setups), the plugin asks the ipify public API for it, at most once a day. The request carries no site or email data; the reply is just an IP address.
+* Service: ipify
+* Website and terms: https://www.ipify.org/
+
+**8. Microsoft 365 service status (automatic, only for Microsoft 365)**
+When a health check fails and your SMTP server is Microsoft 365 / Outlook, the plugin reads Microsoft's public service status page to tell you whether Microsoft is reporting an outage. No site or email data is sent.
+* Service: Microsoft Corporation
 * Terms of service: https://www.microsoft.com/en-us/servicesagreement
-
-**4. Google Chat Incoming Webhooks (optional)**
-If you enable Google Chat alerts, the plugin will POST a JSON failure notification to the Google Chat Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Chat space and is created by you.
-* Service: Google LLC
-* Privacy policy: https://policies.google.com/privacy
-* Terms of service: https://policies.google.com/terms
-
-**5. Discord Incoming Webhooks (optional)**
-If you enable Discord alerts, the plugin will POST a JSON failure notification to the Discord Incoming Webhook URL you provide when consecutive SMTP failures are detected. This URL is specific to your Discord channel and is created by you.
-* Service: Discord Inc.
-* Privacy policy: https://discord.com/privacy
-* Terms of service: https://discord.com/terms
-
-**6. Custom Webhook (optional)**
-If you enable the Custom Webhook channel, the plugin will POST a structured JSON failure notification to the URL you provide when consecutive SMTP failures are detected. This URL is entirely user-supplied — point it at Zapier, Make, n8n, or your own server. No data is sent unless you configure this channel.
-
-**7. ipify.org (automatic, no configuration)**
-When determining the server's outbound IP address for connection diagnostics (used only if the server's own `SERVER_ADDR` is unavailable, e.g. in some local/Docker/proxy environments), the plugin makes a GET request to the ipify.org public IP-lookup API. No data is sent beyond the request itself; the response is just an IP address string.
-* Service: ipify (Randomize.io)
-* Privacy policy: https://www.ipify.org/
-
-**8. Microsoft 365 Service Status API (automatic, only when your configured SMTP host is Microsoft 365/Outlook)**
-When the automated SMTP health check (see "Real-time failure alerts") detects a connection failure and your configured SMTP host is `office365` or `outlook`, the plugin queries Microsoft's public service status API to check whether the failure is a known Microsoft-side outage before sending you an alert. No site or email data is sent — only an outbound GET request is made.
-* Service: Microsoft Corporation
 * Privacy policy: https://privacy.microsoft.com/en-us/privacystatement
 
-No data is collected, transmitted to, or processed by ByteCore Stack servers.
-
 == Screenshots ==
 
-1. Dashboard overview — SMTP authentication status and recent email log activity at a glance
-2. SMTP server connection panel — host, port, encryption, and credentials in one place
-3. Email log — full delivery history with search, status filters, and automatic log retention
-4. Email report — visual delivery chart with scheduled report configuration
-5. Send Test Email — verify your SMTP configuration and delivery instantly
-6. Alerts tab — enabling automated SMTP health monitoring
-7. Alert channel setup — Slack, Microsoft Teams, Google Chat, Discord, or a custom webhook
-8. SMTP configuration — encryption, authentication, and provider-specific settings
-9. A live failure alert delivered to a chat channel — real-time SMTP notification in action
-10. Email Log — a Resend button on a failed row
+1. Overview — whether mail is flowing, last and next health check, email activity chart and what's left to set up
+2. Connection — pick your provider and the server details fill in; send a test email right alongside
+3. Alerts — automatic health checks and failure alerts to Slack, Teams, Google Chat, Discord or a webhook
+4. Reports — delivery chart, totals, highlights and the monthly report email
+5. Email log — grouped by day, with status filters, counts and search; open any email to see the full message
+6. Email details — the full message as it was sent, with delivery status, recipients and headers
 
 == Changelog ==
+
+= 1.3.0 =
+**Redesigned admin.** A new Overview shows whether mail is flowing, which server and sender address are in use, when the last and next health checks run, where alerts go, a 7, 30 or 90-day activity chart, quick actions and what's left to set up. Tabs are now Overview, Connection, Alerts, Reports and Email log, and every screen works on phones and tablets.
+
+**One-minute setup.** Pick your provider (Gmail / Google Workspace, Microsoft 365, SendGrid, Amazon SES, Mailgun, Brevo, Zoho, Yahoo or any other SMTP server) and the server, port and encryption fill in, with sign-in tips for that provider. The password field is labelled for that provider (for example "App password" for Gmail). Testing sits right next to the connection form, and you're warned before leaving with unsaved changes.
+
+**View the full email.** Every email is now saved with its body, headers and attachment names for 90 days. Click **View** on any row of the Email log to open it on its own page: a safe preview, the HTML source, a text version, a phone-width preview, every header and the mail server's reply. Emails saved by 1.2.1's "store failed emails" option are kept and can be viewed too.
+
+**Email log.** Grouped by day (Today, Yesterday, then by date), with status filters that show counts, search, date ranges, 10 to 100 rows per page and CSV export. Rows stay short and easy to scan; the server's full reason for a failure is on the email's own page. The log keeps the last 90 days. If you're updating from a version that kept everything, older entries stay for 30 days after the update, and the Email log offers an export of all entries before they go.
+
+**Clearer alerts.** Every alert now opens with a plain title ("Email is failing on your site"), and says what's wrong in plain words. Slack, Teams and Discord get properly formatted cards, and test alerts say clearly that they're a test.
+
+**Alerts to several channels at once.** Pick any mix of Slack, Microsoft Teams, Google Chat, Discord and a custom webhook. Each one gets the alert, and "Send test alert" reports how each did. Webhook URLs are checked as you type.
+
+**Always-on health checks.** Checks run every 15 minutes once SMTP is set up, alert on the first failure and send one alert per outage. The interval, threshold and alert-limit settings are gone. The health check now also checks your sender address, so a server that accepts the connection but rejects your email is reported as failing.
+
+**Monthly report.** The report email now goes out on the 1st of every month at 9:00 (site time) and covers the whole previous month, instead of 24 hours after saving and drifting from there. Your daily or weekly report is switched to monthly when you update. "Send a report now" sends the current month so far. Recipients are entered as tags, the next send date is shown, and turning "Email me this report" off hides the report options.
+
+**Redesigned emails.** The test email and the monthly report have a cleaner layout that fits phones and supports dark mode. The report leads with a clear verdict and the delivery rate, then shows sent, failed and unconfirmed totals and a day-by-day chart for every day of the month, with a button to open the full report. The test email confirms which server and sender it went through and when.
+
+**Reports.** Delivery chart for 7, 30 or 90 days with totals and highlights: average per day, busiest day, failure-free days, longest failure-free run and how many people your email reached (not counting your own team). Charts are drawn by the plugin, so the bundled Chart.js library (about 200 KB) is no longer loaded.
+
+**Fixes** (including fixes prepared for 1.2.2, which wasn't released separately):
+* Fixed "Could not authenticate" errors when a security plugin rotates the WordPress salts (All-In-One Security, Solid Security, Sucuri) or the site moves: the SMTP password now uses its own encryption key, or a `BCS_SMTP_CRYPTO_KEY` constant in `wp-config.php`. Existing passwords are moved over automatically.
+* Fixed the health check reporting "healthy" when the password was empty, unreadable or not accepted.
+* Fixed a "translation loading was triggered too early" notice on WordPress 6.7 and later.
+* Errors now include the mail server's actual reply, such as Microsoft 365's `535 5.7.139` codes, and a blocked SMTP port times out after 20 seconds instead of hanging.
+* Microsoft Teams alerts are sent as Adaptive Cards and accept Teams Workflows (Power Automate) webhook URLs.
+* The "last check" and "next check" times always add up to the 15-minute interval.
+* Amazon SES no longer pre-fills a region: paste the SMTP endpoint for your own region.
+* CSV export now protects against spreadsheet formula injection: a subject or address starting with =, +, - or @ (which can come from a contact form) is exported as plain text.
+* Uninstalling on a multisite network now removes the plugin's data from every site, not just the main one.
+* A password saved by 1.0.0, which was stored as plain text, is encrypted when you update.
+
+**Removed.** The Settings tab, the opt-in "resend failed emails" feature and `wp bcs-smtp resend`.
+
+**Under the hood.** Bundled Outfit and Geist Mono fonts (no external requests), the outgoing IP lookup is cached for a day, the email log loads only the columns it shows, uninstalling also removes the plugin's temporary data, and the readme now documents every external service.
 
 = 1.2.1 =
@@ -234 +270 @@
 **Renamed** from "SMTP Manager – Email Logs, Monitoring & Alerts" to "ByteCoreStack - SMTP & Health Monitor" for a clearer, more distinctive plugin name. Display name only — the plugin slug (`bcs-smtp-manager`) and all your settings are unchanged.
 
-**Resend failed emails** — a new opt-in "Store failed email content" setting (Config tab, off by default) retains the body of an email only when it fails to send, so a "Resend" button now appears on failed rows in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content auto-purges after a configurable number of days (default 7), independently of your overall log retention setting. Successful and unconfirmed sends are never affected — this plugin's metadata-only logging is unchanged unless you explicitly enable this setting.
+**Resend failed emails** — a new opt-in "Store failed email content" setting (Config tab, off by default) retains the body of an email only when it fails to send, so a "Resend" button now appears on failed rows in the Email Log. Resending creates a fresh log entry with its own delivery status; stored content auto-purges after a configurable number of days (default 7), independently of your overall log retention setting.
 
 **WP-CLI support** — `wp bcs-smtp test <email>`, `wp bcs-smtp resend <log_id>`, and `wp bcs-smtp log list` for scripted test sends, resends, and log lookups from the command line or a CI/deploy pipeline.
 
-**Directory compliance** — rewrote parts of the description and admin UI to remove comparative claims about other SMTP plugins, and confirmed the plugin's use of external services (SMTP server, alert webhooks, ipify.org, Microsoft 365 status API) is fully documented in the External Services section below, per WordPress.org directory guidelines.
-
-**Self-hosted admin fonts** — the admin UI no longer loads DM Sans/DM Mono from the Google Fonts CDN (`@import` in `admin.css`); it now uses the system font stack instead. Fixes a Plugin Check "offloaded content" error and removes an external request that was previously made on every visit to the settings page.
+**Directory compliance** — rewrote parts of the description and admin UI to remove comparative claims about other SMTP plugins, and documented the plugin's use of external services (SMTP server, alert webhooks, ipify.org, Microsoft 365 status API) in the External Services section, per WordPress.org directory guidelines.
+
+**Self-hosted admin fonts** — the admin UI no longer loads DM Sans/DM Mono from the Google Fonts CDN; it uses the system font stack instead. Fixes a Plugin Check "offloaded content" error and removes an external request made on every visit to the settings page.
 
 **Readme fix** — `Tested up to` now uses major.minor format (`7.0`) instead of including a patch version, per the WordPress.org readme spec.
 
-= 1.1.0 =
-**Renamed** from "SMTP Manager by ByteCore Stack" to "SMTP Manager – Email Logs, Monitoring & Alerts" — display name only, the plugin slug and all your settings are unchanged.
-
-**New alert channels** — Google Chat and Discord join Slack and Microsoft Teams, plus a Custom Webhook channel for Zapier/Make/n8n/your own endpoint. The Custom Webhook channel POSTs a structured JSON payload (`event`, `site_name`, `error_msg`, `consecutive_failures`, etc.) instead of a formatted chat message. All webhook URLs are validated against the provider's real domain and sent via `wp_safe_remote_post()`.
-
-**New WordPress Dashboard widget** — SMTP health status and a 30-day sent/failed/unconfirmed volume summary, visible without opening the plugin's settings page.
-
-**Admin UI redesign** — full-width layout, boxed/gradient header, cards split into header/body sections, icon tiles on stat boxes, a "Common SMTP Providers" quick-reference card, full mobile/tablet responsive pass (dropdowns, pagination, button widths, tab bar scrolling), a show/hide eye icon on the password field, and AJAX-driven Email Log filtering with a skeleton loading state.
-
-**Security**
-* The SMTP password is now encrypted at rest instead of stored in plaintext (existing installs migrate automatically on next save).
-* All alert webhook URLs are validated against the provider's real domain and sent via `wp_safe_remote_post()`, closing an SSRF vector where a malicious/misconfigured webhook URL could make the server POST to internal addresses.
-* Stopped storing full email message bodies and headers in the Email Log table — only delivery metadata is retained, matching what the UI has always claimed.
-* Added a 30-second rate limit to "Run Health Check Now" to match the other test/send actions.
-
-**Reliability**
-* Fixed a bug where the automated SMTP health check could report "healthy" after a bare EHLO even when the server's STARTTLS upgrade failed, TLS was selected but STARTTLS wasn't offered, or SMTP auth was never actually verified over an unencrypted connection.
-* Scheduled/manual delivery reports now report exactly which recipients succeeded and which failed, instead of one pass/fail flag for the whole batch.
-
-**Performance**: composite database index on (status, sent_at) for the common Email Log filter combination; CSV export capped at 50,000 rows.
-
-**Compatibility**: bumped minimum WordPress version to 5.3 (`wp_timezone_string()`/`wp_date()` require it — the plugin previously declared 5.0 but used functions that didn't exist yet).
-
-**Accessibility & i18n**: AJAX status messages use `role="status" aria-live="polite"`; nearly every user-facing string is now wrapped for translation (previously ~2 out of hundreds, despite declaring a text domain).
-
-= 1.0.0 =
-* Initial release.
+Older versions are listed in changelog.txt, included with the plugin.
 
 == Upgrade Notice ==
+
+= 1.3.0 =
+Redesigned admin, full email viewer, multi-channel alerts and automatic health checks. Your settings and email log are kept. The log now keeps 90 days: older entries stay for 30 days after updating so you can export them.
 
 = 1.2.1 =
 First update since 1.1.0. Renamed to "ByteCoreStack - SMTP & Health Monitor" (slug and settings unchanged), adds opt-in "Resend failed emails" and WP-CLI support (`wp bcs-smtp test|resend|log`). No settings change automatically.
-
-= 1.1.0 =
-Major update: full admin UI redesign, renamed to "SMTP Manager – Email Logs, Monitoring & Alerts" (slug unchanged), 3 new alert channels (Google Chat, Discord, Custom Webhook), a Dashboard widget, password encryption, and SSRF-hardened webhooks. Settings migrate automatically.
-
-= 1.0.0 =
-Initial release.

bcs-smtp-manager/trunk/uninstall.php

@@ -1 +1 @@
 <?php
 /**
- * Fired when the plugin is uninstalled — removes all data.
+ * Fired when the plugin is uninstalled — removes all data, on every site of a network.
  *
  * @package BCS_SMTP_Manager
@@ -10 +10 @@
 }
 
-// Unschedule cron
-$bcs_smtp_timestamp = wp_next_scheduled( 'bcs_smtp_health_check' );
-if ( $bcs_smtp_timestamp ) {
-        wp_unschedule_event( $bcs_smtp_timestamp, 'bcs_smtp_health_check' );
+/**
+ * Remove the plugin's scheduled events, tables, options and temporary values from the current site.
+ */
+function bcs_smtp_uninstall_site() {
+        global $wpdb;
+
+        // Unschedule cron
+        foreach ( array( 'bcs_smtp_health_check', 'bcs_smtp_prune_log', 'bcs_smtp_send_report' ) as $bcs_smtp_hook ) {
+                wp_clear_scheduled_hook( $bcs_smtp_hook );
+        }
+
+        // Drop custom tables
+        // phpcs:disable WordPress.DB.PreparedSQL.NotPrepared,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,PluginCheck.Security.DirectDB.UnescapedDBParameter -- uninstall routine; table names are hardcoded plugin prefixes, not user input.
+        $bcs_smtp_tables = array(
+                $wpdb->prefix . 'bcs_smtp_email_log',
+                $wpdb->prefix . 'bch_smtp_email_log',
+                $wpdb->prefix . 'bptsm_incidents',
+        );
+        foreach ( $bcs_smtp_tables as $bcs_smtp_table ) {
+                $wpdb->query( "DROP TABLE IF EXISTS {$bcs_smtp_table}" );
+        }
+        // phpcs:enable
+
+        // Delete all options
+        $bcs_smtp_options = array(
+                'bcs_smtp_enabled',
+                'bcs_from_email',
+                'bcs_from_name',
+                'bcs_smtp_host',
+                'bcs_smtp_port',
+                'bcs_smtp_encryption',
+                'bcs_auto_tls',
+                'bcs_smtp_auth',
+                'bcs_smtp_username',
+                'bcs_smtp_custom_server',
+                'bcs_smtp_password',
+                'bcs_smtp_crypto_key',
+                'bcs_smtp_snapshot',
+                'bcs_monitor_enabled',
+                'bcs_check_interval',
+                'bcs_failure_threshold',
+                'bcs_consecutive_failures',
+                'bcs_last_check',
+                'bcs_last_check_success',
+                'bcs_alert_channel_enabled',
+                'bcs_alert_channel',
+                'bcs_alert_webhook_url',
+                'bcs_slack_webhook_url',
+                'bcs_teams_webhook_url',
+                'bcs_google_chat_webhook_url',
+                'bcs_discord_webhook_url',
+                'bcs_custom_webhook_url',
+                'bcs_max_alert_count',
+                'bcs_alert_sent_count',
+                'bcs_report_schedule_enabled',
+                'bcs_report_emails',
+                'bcs_report_frequency',
+                'bcs_log_prune_mode',
+                'bcs_log_prune_value',
+                'bcs_smtp_migrated_v2',
+                'bcs_db_version',
+                'bcs_store_failed_body',
+                'bcs_failed_body_retention_days',
+                'bcs_smtp_migrated_1_3',
+                'bcs_smtp_prune_after',
+                'bcs_smtp_monitor_enabled',
+        );
+        foreach ( $bcs_smtp_options as $bcs_smtp_option ) {
+                delete_option( $bcs_smtp_option );
+        }
+
+        // Temporary values: the health-check lock, the cached server IP and per-user rate limits.
+        delete_transient( 'bcs_smtp_check_lock' );
+        delete_transient( 'bcs_smtp_source_ip' );
+        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching -- uninstall routine; removes this plugin's own rate-limit transients.
+        $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s", $wpdb->esc_like( '_transient_bcs_smtp_rl_' ) . '%', $wpdb->esc_like( '_transient_timeout_bcs_smtp_rl_' ) . '%' ) );
 }
 
-// Drop custom tables
-global $wpdb;
-// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,PluginCheck.Security.DirectDB.UnescapedDBParameter -- uninstall routine; table names are hardcoded plugin prefixes, not user input.
-$bcs_smtp_tables = array(
-        $wpdb->prefix . 'bcs_smtp_email_log',
-        $wpdb->prefix . 'bch_smtp_email_log',
-        $wpdb->prefix . 'bptsm_incidents',
-);
-foreach ( $bcs_smtp_tables as $bcs_smtp_table ) {
-        $wpdb->query( "DROP TABLE IF EXISTS {$bcs_smtp_table}" );
+// On a network each site has its own log table and settings, so clean every one of them.
+if ( is_multisite() ) {
+        foreach ( get_sites( array( 'fields' => 'ids', 'number' => 0 ) ) as $bcs_smtp_site_id ) {
+                switch_to_blog( $bcs_smtp_site_id );
+                bcs_smtp_uninstall_site();
+                restore_current_blog();
+        }
+} else {
+        bcs_smtp_uninstall_site();
 }
-// phpcs:enable
-
-// Delete all options
-$bcs_smtp_options = array(
-        'bcs_smtp_enabled',
-        'bcs_from_email',
-        'bcs_from_name',
-        'bcs_smtp_host',
-        'bcs_smtp_port',
-        'bcs_smtp_encryption',
-        'bcs_auto_tls',
-        'bcs_smtp_auth',
-        'bcs_smtp_username',
-        'bcs_smtp_password',
-        'bcs_monitor_enabled',
-        'bcs_check_interval',
-        'bcs_failure_threshold',
-        'bcs_consecutive_failures',
-        'bcs_last_check',
-        'bcs_last_check_success',
-        'bcs_alert_channel_enabled',
-        'bcs_alert_channel',
-        'bcs_alert_webhook_url',
-        'bcs_slack_webhook_url',
-        'bcs_teams_webhook_url',
-        'bcs_google_chat_webhook_url',
-        'bcs_discord_webhook_url',
-        'bcs_custom_webhook_url',
-        'bcs_max_alert_count',
-        'bcs_alert_sent_count',
-        'bcs_report_schedule_enabled',
-        'bcs_report_emails',
-        'bcs_report_frequency',
-        'bcs_log_prune_mode',
-        'bcs_log_prune_value',
-        'bcs_smtp_migrated_v2',
-        'bcs_db_version',
-        'bcs_store_failed_body',
-        'bcs_failed_body_retention_days',
-);
-foreach ( $bcs_smtp_options as $bcs_smtp_option ) {
-        delete_option( $bcs_smtp_option );
-}