Check and improve your Email Deliverability. Pass DMARC by DKIM-signing your emails without an external SMTP. Comply with Google & Yahoo requirements!
As of April 2026, Deliverability is a WordPress SPF plugin with 800 active installations and a 4.2/5 rating from 15 reviews. It has been downloaded 11K+ times in total. Requires WordPress 5.9+ and PHP 7.4+. Available on WordPress.org since 2022. Top alternative: Simple Picture Fancybox.
Our Deliverability Plugin for WordPress allows you to easily authenticate emails generated from your website with a DKIM signature.
But our Deliverability Plugin does much more than that! In fact, it’s packed with incredible email security and email deliverability features such as:
It’s always a good practice to authenticate your domain, but if your domain has a DMARC record and your website runs on WordPress you almost certainly need this plugin.
The Deliverability plugin will take your Email Deliverability to a whole new level.
This plugin is designed and written by experts and is easy to use and underst…
| WordPress | 5.9+ requiredTested up to 6.6.5 |
| PHP | 7.4+ required |
Added
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.