Description

Post SMTP is a plugin designed to ensure that all emails sent by your site reach their destination correctly. Compatible with the leading SMTP providers, it offers secure authentication, detailed reports, and advanced monitoring features. Ideal for anyone who needs high reliability when sending automated messages and notifications.

Key Features

• Compatible with any SMTP provider
• Secure authentication via OAuth 2.0
• Detailed logs of all sent emails
• Failure alert system via email, SMS, or Slack
• Dedicated mobile app for monitoring and resending
• Chrome extension for real-time alerts
• Automatic resend function for failed emails
These features ensure complete control over email sending and delivery, preventing failures and communication loss.

Post SMTP Benefits

• Guaranteed deliverability – Ensures that all emails are sent and delivered correctly.
• Easy monitoring – Track logs, reports, and real-time alerts directly from the dashboard or app.
• Simple setup – The setup wizard makes it easy to connect to any SMTP service.

Who Is It For?

• Professionals who depend on reliable automated notifications
• Online stores that send transactional emails
• Companies and websites that need to log and monitor message sending

Post SMTP is a complete solution for optimizing email sending, reducing failures, and increasing the reliability of digital communication. With secure authentication, automatic reports, and integration with apps and extensions, it ensures that every message reaches where it needs to go, quickly and securely.

Frequently asked questions

Is Post SMTP GPL-licensed?

Yes. Post SMTP is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.

Can I use Post SMTP on multiple sites?

Yes. You can install Post SMTP on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.

How much does Post SMTP cost at Ultrapack?

Post SMTP costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).

Does Post SMTP include updates?

Yes. The current version of Post SMTP is 4.0.1, published at Ultrapack on Aug 31, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Post SMTP scanned before publication?

Yes. Every version of Post SMTP goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.

What are the requirements for the plugin Post SMTP?

Requires WordPress 5.6.0 or higher and PHP 7.1 or higher. Tested up to WordPress 7.0.