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Download Post SMTP Pro v1.5.2

Plugins > Plugins Premium
Automatic updates Yes
Version 1.5.2
Updated on
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Post SMTP Pro
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Post SMTP Pro is a robust, WordPress plugin designed to enhance email delivery. It ensures reliable, secure, and swift email dispatch, using advanced protocols. With intuitive setup, detailed logs, and real-time alerts, it simplifies troubleshooting. Ideal for businesses, it supports multiple email providers, ensuring your messages reach their destination, unfailingly.

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Core Features of Post SMTP Pro

  • Email Logging: Keep a detailed log of all emails sent from your WordPress site for tracking and troubleshooting.
  • SMTP Authentication: Securely connect to your email server using SMTP authentication to ensure reliable email delivery.
  • OAuth 2.0 Support: Use OAuth 2.0 for secure authentication with popular email services like Gmail and Outlook.
  • Multiple Email Accounts: Configure and manage multiple email accounts for sending emails from different addresses.
  • Fallback Mailing: Set up a backup email service to ensure emails are sent even if the primary service fails.
  • Notification Management: Customize and manage email notifications to suit your needs.
  • Advanced Debugging: Access detailed debugging information to troubleshoot email delivery issues.
  • Third-Party Integrations: Integrate with popular third-party services and plugins for enhanced functionality.
  • Priority Support: Get access to priority support for assistance with any issues or questions.

List of improvements in Post SMTP Pro version 1.5.2

  • = 1.5.1 – Mar 12, 2026 =
  • FIX – Post SMTP <= 3.8.0 – Missing authorization for Authenticated (Subscriber+) Office 365 OAuth configuration overwrite.
  • FIX – Resolved REST error: {“code”:”rest_cookie_invalid_nonce”,”message”:”Cookie check failed”,”data”:{“status”:403}}.
  • = 1.5.0 Jan 19, 2026 =
  • Microsoft365: NEW – Introduced the “Send Test Notification” feature for Post SMTP Pro (Twillo & Teams) failure alerts.
  • Post SMTP Pro: NEW – Introducing the Microsoft 365 One-Click Feature for Seamless integration.
  • = 1.4.5 Nov 25, 2025 =
  • IMPROVEMENT Added PHP 8+ compatibility.
  • FIX Added authorization checks related to OAuth token updates for authenticated users.
  • = 1.4.4 – Oct 27, 2025 =
  • FIX: PHP Warning: Cannot declare class PHPMailer
  • FIX: Office365PostSMTP plugin Engine::send() method now supports name-value pair attachments
  • FIX: Corrected failed message entries in email logs
  • FIX: Widget Stats display error resolved
  • FIX: Elementor block conflict fixed
  • FIX: Zoho configuration issues resolved
  • FIX: Fatal error occurring during Office365 configuration
  • FIX: Advanced log filter issues resolved
  • FIX: Email sending issue resolved after activating the plugin.
  • = 1.4.3 September 26, 2025 =
  • Fix: Post SMTP Pro Reverted the slug.
  • = 1.4.2 September 26, 2025 =
  • Fix: Post SMTP Pro Reverted the slug.
  • = 1.4.1 August 18, 2025 =
  • New: Microsoft365 Added support for validating Office 365 single-tenant configurations via tenant-specific authorization and token URLs.
  • Fix: Amazon SES – Resolved issue where BCC recipients were not delivered when using AWS SES with certain form plugins.
  • Fix: Advanced Email Delivery & Logs Resolved issue where bulk resend emails were not sending.
  • Fix: Advanced Email Delivery & Logs Bulk resend was not working.
  • = 1.4.0 June 02, 2025 =
  • New: Post SMTP Pro Stats Widget added in WordPress Dashboard.
  • Fix: Microsoft365 “Empty body” message was being shown if Microsoft365 as active but not in use.
  • Fix: Email Log Attachment Email attachments were not visible in email logs.
  • Fix: Post SMTP Pro Called undefined function in very rear case.
  • = 1.3.0 May 19, 2025 =
  • New: Gmail Introducing Gmail One-Click Authentication for easy setup.
  • New: Microsoft Teams Introducing Microsoft Teams integration to get failed email notifications on Teams channels.
  • Improvement: Advanced Email Delivery & Logs Switched Emails delivery to WP Cron for better performance.
  • Fix: Amazon SES does not comply with addr-spec of RFC 2822.
  • Fix: Post SMTP Pro Added WordPress 6.7 Language compatibility.
  • = 1.2.5 Apr 16, 2025 =
  • Fix: Amazon SES Uncaught Error: Class “PostSMTPSESPostSmtpAmazonSesTransport” not found (In very rear case).
  • = 1.2.4 Feb 12, 2025 =
  • Fix: Amazon SES Was not initializing.
  • Fix: Advanced Email Delivery & Logs There was a PHP Error with Post SMTP 3.1.0.
  • = 1.2.3 Jan 20, 2025 =
  • Fix: Microsoft365 PHP warning in old PHP versions.
  • Fix: Post SMTP Pro Added WordPress 6.7 Language compatibility.
  • = 1.2.2 Dec 03, 2024 =
  • Fix: Microsoft365 Removed Message-ID, since it’s added by Microsoft365.
  • Fix: Amazon SES Called to undefined constant in very rear case.
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