Yes, Mail SMTP is free to use. It is available as a free plugin on WordPress.org.

How many websites use Mail SMTP?

Mail SMTP has 20 active installations as tracked by WordPress.org.

What are the best Mail SMTP alternatives?

Popular alternatives to Mail SMTP include Flamingo, FluentSMTP – WP SMTP Plugin with Amazon…, MW WP Form. You can compare them side-by-side on our comparison pages.

Does Mail SMTP work with the latest WordPress?

Mail SMTP has been tested up to WordPress 6.7.5. It requires WordPress 3.0+ and PHP 5.6.20+.

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Mail SMTP

Name: Mail SMTP
Author: Sirius Pro

Simply configure your SMTP server and send email directly from WordPress site.

By Sirius Pro·Mail·Free

·20 active installs·Updated 1 year ago

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As of April 2026, Mail SMTP is a WordPress mail plugin with 20 active installations and a 0/5 rating0. It has been downloaded 1.5K+ times in total. Requires WordPress 3.0+ and PHP 5.6.20+. Available on WordPress.org since 2022. Last updated 1 year ago — may have compatibility concerns. Top alternative: Flamingo.

0/5Rating

20active installs

1.5K+total downloads

4 yearssince 2022

Overview

Simply configure your SMTP server and send email directly from WordPress site. This plugin allows you to easily send email through SMTP server and phpmailer without modifying the code and it works with most of the available themes. Just install and activate this plugin to use SMTP server and send emails in WordPress.

Read more about this plugin on WordPress blog.

Read full description on WordPress.org