sandywp / plugins / deliverability
Deliverability
pass DKIM, SPF, DMARC & more
Check and improve your Email Deliverability. Pass DMARC by DKIM-signing your emails without an external SMTP. Comply with Google & Yahoo requirements!
Ready in seconds.
v1.8.0 700+ installs WP 5.9+ PHP 7.4+

About this plugin
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:
- SPF authentication check, monitor and troubleshoot
- DKIM authentication implementation, check, monitor and troubleshoot
- DMARC authentication check, monitor and troubleshoot
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 understand.
It reduces security risk by checking for shortcomings in your email setup, and by implementing and enforcing the latest recommended Email security practices and techniques.
Fully compatible with Contact-Form 7, WPForms, BuddyPress, WP Mail SMTP and more.
Questions
- What is this plugin about?
This plugin allows to monitor and improve your Email Authentication. It provides unique features such as DKIM signing and Deliverability scoring that are a game changer for any internet marketer.
- My domain has a DMARC. Do I need this?
Absolutely YES. If you have a DMARC you MUST DKIM-sign your WordPress emails using our Plugin or they will fail DMARC.
- My domain doesn’t have a DMARC. Do I need this?
Do you want to monitor and improve your Email Deliverability? If the answer is Yes, then you need this plugin even if your domain doesn’t have a DMARC record.
- Do I need any technical knowledge to set up and use the plugin?
No technical expertise is required to use our plugin. It’s designed to be user-friendly, with intuitive settings and clear documentation to guide you through the setup process. Only a very basic understanding of DNS is required to publish the provided DKIM key.
- How does your plugin help with SPF, DKIM, and DMARC authentication?
Our plugin simplifies the process of implementing and managing SPF, DKIM, and DMARC authentication for your WordPress website. It automatically generates the necessary DNS records and provides easy-to-understand settings for monitoring and troubleshooting authentication issues.
- What happens if I already have DKIM, SPF, or DMARC records set up?
You will still need this plugin. Every mail stream must have its own DKIM or it won’t be authenticated. On top of this, our plugin will seamlessly integrate with your existing configuration allowing you to monitor your authentication setup within the plugin interface.
- Can I use the plugin with other email marketing or contact form plugins?
Absolutely! Our plugin is fully compatible with popular email marketing and contact form plugins like Contact Form 7, WPForms, BuddyPress, and WP Mail SMTP, ensuring that all outgoing emails from your website are authenticated. Please reach out in case you encounter any compatibility issue and we’ll look into it.
- Does the plugin require any ongoing maintenance or updates?
Our plugin is regularly updated to ensure compatibility with the latest WordPress versions and email authentication standards. Once installed and configured, it requires minimal maintenance, giving you peace of mind that your email authentication is always up to date.
sandywp / also on the shelf
Try another plugin
4.7 · 300K+ installs
Log, view, and resend all emails sent from your WordPress site. Great for resolving email sending issues or keeping a copy for…
Meow Mailer – Free SMTP, Everything Included
4.9 · 500+ installs
Reliable WordPress email through the provider of your choice, with a real email log, one click resend, failure alerts and offline…
Custom SMTP: Email Deliverability – FREE & Easy-to-use
5.0 · 100+ installs
WordPress can't send email reliably on its own. Send through your SMTP provider, log every message, get alerts when sending…
Spin up a real WordPress site in seconds.
Test plugins, build a demo, hand a client a link — then squash it and start again. No local setup, no Docker.