{
  "name": "Newsletter - SMTP (by ROBOTSTXT)",
  "slug": "robotstxt-smtp-newsletter",
  "version": "2.2.0",
  "author": "ROBOTSTXT",
  "homepage": "https://git.robotstxt.es/ROBOTSTXT/robotstxt-smtp-newsletter",
  "download_url": "https://git.robotstxt.es/ROBOTSTXT/robotstxt-smtp-newsletter/releases/download/2.2.0/robotstxt-smtp-newsletter-2.2.0.zip",
  "requires": "4.7",
  "tested": "6.9",
  "requires_php": "7.2",
  "last_updated": "2026-02-16",
  "description": "Integrates ROBOTSTXT SMTP configuration with Newsletter plugin for reliable bulk email delivery with database-backed queue and external workers. Provides persistent email queue, parallel processing, automatic retry, and comprehensive campaign statistics.",
  "changelog": "<h4>2.2.0 - 2026-02-16</h4><ul><li><strong>MAJOR:</strong> Database-backed email queue for persistent, reliable email delivery</li><li><strong>MAJOR:</strong> External CLI worker script for asynchronous email processing</li><li><strong>Added:</strong> Queue Status widget with real-time statistics (pending, processing, sent, failed)</li><li><strong>Added:</strong> Recent Campaigns section with key metrics in settings page</li><li><strong>Added:</strong> Email Queue admin page to view all queued and sent emails</li><li><strong>Added:</strong> Statistics admin page with campaign performance metrics</li><li><strong>Added:</strong> Parallel worker support for high-volume sending (10+ workers simultaneously)</li><li><strong>Added:</strong> Automatic retry with exponential backoff (up to 3 attempts: 5min → 15min → 30min)</li><li><strong>Added:</strong> Campaign statistics tracking (start time, duration, speed, success rate)</li><li><strong>Changed:</strong> Emails are now queued to database instead of sent immediately</li><li><strong>Changed:</strong> Settings page reorganized with Queue Status, Recent Campaigns, and Worker Configuration sections</li><li><strong>Changed:</strong> Campaign statistics now grouped by unique Newsletter ID instead of campaign name</li><li><strong>Removed:</strong> max_per_connection setting (no longer needed with worker architecture)</li><li><strong>Removed:</strong> Direct PHPMailer usage (replaced with wp_mail() in workers)</li><li><strong>Fixed:</strong> Duplicate campaign statistics for campaigns with same name but different IDs</li><li><strong>Fixed:</strong> Worker command documentation (corrected parallel worker syntax)</li><li><strong>BREAKING:</strong> Manual worker setup required - emails no longer send automatically</li><li><strong>BREAKING:</strong> System cron or process supervisor required for production use</li><li><strong>Technical:</strong> New database tables for queue and statistics with automatic creation on activation</li><li><strong>Technical:</strong> Microsecond precision timestamps for accurate performance metrics</li><li><strong>Security:</strong> CLI-only worker script with SQL injection prevention and capability checks</li></ul><h4>2.1.0 - 2026-02-09</h4><ul><li><strong>Changed:</strong> Uninstall behavior: plugin no longer performs cleanup on uninstall, all data cleanup is now handled by the core SMTP plugin</li><li><strong>Changed:</strong> This ensures Newsletter configuration is preserved when only the add-on is removed, and properly cleaned when the core plugin is uninstalled</li><li><strong>Technical:</strong> Simplified uninstall.php to delegate all cleanup responsibility to core SMTP plugin</li></ul><h4>2.0.1 - 2026-01-29</h4><ul><li><strong>Changed:</strong> Removed Network requirement from plugin headers to allow single-site activation</li></ul><h4>2.0.0 - 2026-01-29</h4><ul><li><strong>Changed:</strong> Updated compatibility with SMTP (by ROBOTSTXT) plugin 2.0.0</li><li><strong>Changed:</strong> Enhanced integration with core SMTP plugin security improvements</li><li><strong>Improved:</strong> Better error handling and validation</li></ul><h4>1.0.0 - 2026-01-29</h4><ul><li><strong>Added:</strong> Initial release with SMTPKeepAlive support</li><li><strong>Added:</strong> Amazon SES API integration for optimized delivery</li><li><strong>Performance:</strong> 20-30x faster bulk email sending compared to standard wp_mail()</li></ul>",
  "sections": {
    "description": "Integrates ROBOTSTXT SMTP configuration with Newsletter plugin for reliable bulk email delivery with database-backed queue and external workers. Version 2.2.0 introduces a queue-based architecture with persistent email storage, parallel worker processing, automatic retry logic, and comprehensive campaign statistics. Emails are queued to database and processed by external CLI workers, providing reliability, scalability, and detailed monitoring.",
    "changelog": "<h4>2.2.0 - 2026-02-16</h4><ul><li><strong>MAJOR:</strong> Database-backed email queue for persistent, reliable email delivery</li><li><strong>MAJOR:</strong> External CLI worker script for asynchronous email processing</li><li><strong>Added:</strong> Queue Status widget with real-time statistics</li><li><strong>Added:</strong> Recent Campaigns section with key metrics</li><li><strong>Added:</strong> Email Queue admin page</li><li><strong>Added:</strong> Statistics admin page with campaign metrics</li><li><strong>Added:</strong> Parallel worker support (10+ workers)</li><li><strong>Added:</strong> Automatic retry with exponential backoff</li><li><strong>Changed:</strong> Emails queued to database instead of sent immediately</li><li><strong>Changed:</strong> Campaign statistics grouped by Newsletter ID</li><li><strong>Removed:</strong> max_per_connection setting</li><li><strong>Fixed:</strong> Duplicate campaign statistics</li><li><strong>BREAKING:</strong> Manual worker setup required</li></ul>"
  },
  "banners": {
    "low": "",
    "high": ""
  },
  "icons": {
    "1x": "",
    "2x": ""
  }
}