Post SMTP Pro 1.5.5

Post SMTP ensures that your WordPress site’s emails actually reach the inbox – not the spam folder. It replaces the default mail-sending method with a secure, authenticated SMTP connection of your choice (Gmail, Office 365, Amazon SES, Mailgun, etc.).

You’ll also get a setup wizard to guide you step-by-step, detailed logs of every email sent and failed, and notifications when something goes wrong.


Effortlessly link your WordPress site with leading SMTP mailers, including Google WorkSpace, Microsoft 365, Amazon SES, Mailgun, SendGrid, and more.

• Secure SMTP Authentication — Guarantees your emails are properly authenticated, improving deliverability and preventing them from being marked as spam.
• Supports Multiple SMTP Providers — Compatible with Gmail, Office 365, Amazon SES, Mailgun, and more, allowing flexible integration with your preferred mail service.
• Step-by-Step Setup Wizard — Simplifies configuration with an intuitive guide, ensuring even beginners can set up SMTP effortlessly and correctly.
• Detailed Email Logs — Provides comprehensive records of all emails sent and failed, helping you monitor communication and quickly diagnose issues.
• Instant Failure Notifications — Sends alerts when email delivery problems occur, enabling prompt action to maintain seamless communication.
• Fallback Email Routing — Automatically tries alternative SMTP servers if the primary connection fails, ensuring your emails keep going out without interruption.
• Customizable Email Headers — Lets you tweak email settings to align with your branding and improve email authenticity.
• Compatibility with All WordPress Themes and Plugins — Integrates smoothly into any WordPress environment without conflicts or slowdowns.
• Advanced Security Features — Supports OAuth 2.0 for secure authentication with major email providers, enhancing protection against unauthorized access.
• Developer-Friendly — Offers hooks and filters for customization to meet specific workflow requirements without compromising stability.