Description

Post SMTP is a plugin created to ensure that all emails sent by your site reach their destination correctly. Compatible with the main 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 emails sent
• Failure alert system via email, SMS, or Slack
• Dedicated mobile app for monitoring and resending
• Chrome extension for real-time alerts
• Automatic resending of emails with errors
These features ensure full control over email sending and delivery, preventing failures and communication losses.

Benefits of Post SMTP

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

Who Is It For?

• Professionals who rely on reliable automated notifications
• Online stores that send transactional emails
• Businesses and websites that need to record and monitor message sending

Post SMTP is a complete solution to optimize email sending, reduce failures, and increase the reliability of digital communication. With secure authentication, automatic reports, and integration with apps and extensions, it ensures that each message gets where it needs to, quickly and securely.

Frequently asked questions

Is Post SMTP Pro GPL-licensed?

Yes. Post SMTP Pro 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 Pro on multiple sites?

Yes. You can install Post SMTP Pro 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 Pro cost at Ultrapack?

Post SMTP Pro 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 Pro include updates?

Yes. The current version of Post SMTP Pro is 1.5.4, published at Ultrapack on Aug 31, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Post SMTP Pro scanned before publication?

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

What are the requirements for the plugin Post SMTP Pro?

Requires WordPress 5.6.0 or higher. Tested up to WordPress 6.8.