Intercept emails sent with wp_mail() into flexible mail queue for sending emails, convert plain text emails to HTML, email log, and more.
As of April 2026, GD Mail Queue is a WordPress smtp plugin with 800 active installations and a 5/5 rating from 11 reviews. It has been downloaded 14K+ times in total. Requires WordPress 5.9+ and PHP 7.4+. Available on WordPress.org since 2019. Last updated 1 year ago — may have compatibility concerns. Support resolution rate: 0%. Top alternative: WP Mail SMTP by WPForms – The Most….
The plugin adds a mail queue system that can intercept all the emails sent through the wp_mail function, and depending on the predefined rules (number of recipients), sent the email into the queue, with each recipient getting their email. On top of that, the plugin can process all plain text emails and wrap them in the HTML, and send them as HTML, with options to customize the template and various other aspects.
The central part of the plugin, called ‘Mailer,’ controls the process.
wp_mail callProcess of turning plain text into HTML emails, support all emails sent through wp_mail, even if they don’t end in the queue…
| WordPress | 5.9+ requiredTested up to 6.7.5 |
| PHP | 7.4+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.