Surbma offers a free version with core features. A premium version is also available with additional functionality.

How many websites use Surbma?

Surbma has 20 active installations as tracked by WordPress.org.

What are the best Surbma alternatives?

Popular alternatives to Surbma include WP Mail SMTP by WPForms – The Most…, Easy WP SMTP – WordPress SMTP and Email…, GoSMTP – SMTP for WordPress. You can compare them side-by-side on our comparison pages.

Does Surbma work with the latest WordPress?

Surbma has been tested up to WordPress 6.4.8. It requires WordPress 5.0+ and PHP 7.0+.

PluginSift

Surbma | SMTP

Name: Surbma | SMTP
Author: Surbma

External SMTP mail configuration via global variables in wp-config.php.

By Surbma·Smtp·Free + Premium

·20 active installs·Updated 2 years ago

Download Visit Homepage Compare

As of April 2026, Surbma is a WordPress smtp plugin with 20 active installations and a 0/5 rating0. It has been downloaded 2.3K+ times in total. Requires WordPress 5.0+ and PHP 7.0+. Available on WordPress.org since 2016. Last updated 2 years ago — may have compatibility concerns. Top alternative: WP Mail SMTP by WPForms – The Most….

0/5Rating

20active installs

2.3K+total downloads

10 yearssince 2016

Overview

This plugin is created especially for Multisite Networks. You can define all variables in the wp-config.php file and it will be valid for all sites in a Multisite. So this is not for a site-by-site configuration plugin. You can install it on a single WordPress install also and it will work perfectly. But if you install it in a Multisite Network, you can only network activate it!

This plugin is working with all SMTP servers and services, like Mailgun, SendGrid, Mandrill, Amazon SES and others.

Required variables: