Antonino Piazza

Stefano Varesi

Nicola VoT Selenu

<p>Our Deliverability Plugin for WordPress allows you to easily authenticate emails generated from your website with a DKIM signature.</p>
<p>But our Deliverability Plugin does much more than that! In fact, it’s packed with incredible email security and email deliverability features such as:</p>
<ul>
<li>SPF authentication check, monitor and troubleshoot</li>
<li>DKIM authentication implementation, check, monitor and troubleshoot</li>
<li>DMARC authentication check, monitor and troubleshoot</li>
</ul>
<p>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.</p>
<p>The Deliverability plugin will take your Email Deliverability to a whole new level.</p>
<p>This plugin is designed and written by experts and is easy to use and understand.</p>
<p>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.</p>
<p>Fully compatible with Contact-Form 7, WPForms, BuddyPress, WP Mail SMTP and more.</p>


Deliverability – pass DKIM, SPF, DMARC & more


Of course I might be biased, but I believe this is a must-to-have plugin to protect your brand and digital identity or just to increase the chances to land in the recipient's inbox.


A must to have plugin :)


Excellent dashboard with lot of informations. I used it to fix the deliverability configuration of my website. After that, I didn't receive any complaint from my users about my emails marked as spam in their inbox.



Really effective!


Great plugin


The plugin is very well made and the code is organized and clean which is truly a plus, an added value in the sea of plugins that often bring down the performance of websites due to the poor quality of the written code.



It helps a lot in his mission. Especially the less experienced, but also professionals will have to do less expensive work to optimize mail delivery.



I highly recommend trying it to all users who have problems with mail delivery from their WordPress site and who have to struggle with this annoying problem every day.



A Swiss Army Knife for optimizing email deliverability, with practical tips that guide you step-by-step through the entire process of tracking effective email delivery.


It makes checking email deliverability a breeze


The plugin offers a straightforward and user-friendly experience. Following the simple instructions in the settings page, I successfully added the TXT record to my DNS and my emails were successfully signed. I particularly appreciate the delivery chart and the dashboard, which provide valuable insights on my email deliveries and how to enhance it. These features empower me to ensure a safer and more reliable communication to my customers.


A standout plugin


Unfortunate I do not recieve any email for verifications my account. Tried on different installations and different emails.


Cant make account

Check and improve your Email Deliverability. Pass DMARC by DKIM-signing your emails without an external SMTP. Comply with Google & Yahoo requirements!

DuoCircle LLC

<p>DMARCREPORT Domain Auth Checker lets you embed interactive email authentication record checkers on any WordPress page or post using a simple shortcode. All DNS lookups run locally through PHP’s native <code>dns_get_record()</code> function. The MTA-STS checker also fetches the domain’s MTA-STS policy file over HTTPS (see External Services below).</p>
<h4>SPF Checker</h4>
<ul>
<li>Analyze SPF records for any domain</li>
<li>Monitor DNS lookup count (RFC 7208 limit of 10)</li>
<li>View SPF record structure in an interactive tree</li>
<li>Per-mechanism lookup count breakdown</li>
<li>Health status indicator (Good / At Limit / Critical)</li>
</ul>
<h4>DMARC Checker</h4>
<ul>
<li>Analyze DMARC policies and configuration</li>
<li>Interactive DMARC record builder</li>
<li>Tag parsing with descriptions</li>
<li>DKIM and SPF alignment checks</li>
<li>Reporting configuration (rua/ruf) verification</li>
</ul>
<h4>TLS-RPT Checker</h4>
<ul>
<li>Check SMTP TLS Reporting configuration</li>
<li>Validate mailto: and https: reporting endpoints</li>
<li>Health scoring for TLS-RPT setup</li>
</ul>
<h4>BIMI Checker</h4>
<ul>
<li>Verify Brand Indicators for Message Identification setup</li>
<li>Visual logo preview</li>
<li>VMC (Verified Mark Certificate) detection</li>
<li>Custom selector support</li>
</ul>
<h4>MTA-STS Checker</h4>
<ul>
<li>Verify MTA-STS DNS TXT record</li>
<li>Fetch and parse the MTA-STS policy file</li>
<li>Mode detection (enforce/testing/none)</li>
<li>MX host listing from policy</li>
<li>Max age analysis</li>
</ul>
<h4>Common Features</h4>
<ul>
<li>Copy to clipboard for domains and record values</li>
<li>Fully responsive design (desktop and mobile)</li>
<li>URL deep linking — share results via <code>?domain=example.com</code></li>
<li>Visual health indicators for all checkers</li>
<li>Powered by dmarcreport.com watermark</li>
</ul>
<h3>Usage</h3>
<p>Use the <code>[dmarcreport_domain_auth_checker]</code> shortcode with the <code>type</code> attribute:</p>
<ul>
<li><strong>SPF</strong> (default): <code>[dmarcreport_domain_auth_checker]</code> or <code>[dmarcreport_domain_auth_checker type="spf"]</code></li>
<li><strong>DMARC</strong>: <code>[dmarcreport_domain_auth_checker type="dmarc"]</code></li>
<li><strong>TLS-RPT</strong>: <code>[dmarcreport_domain_auth_checker type="tlsrpt"]</code></li>
<li><strong>BIMI</strong>: <code>[dmarcreport_domain_auth_checker type="bimi"]</code></li>
<li><strong>MTA-STS</strong>: <code>[dmarcreport_domain_auth_checker type="mta-sts"]</code></li>
</ul>
<p>All checkers support the <code>?domain=example.com</code> URL parameter for deep linking and auto-analysis.</p>
<h3>External services</h3>
<p>This plugin performs DNS lookups and, for the MTA-STS checker, an HTTPS request to the domain being analyzed. No data is sent to any third-party API or service operated by the plugin author.</p>
<h4>DNS lookups</h4>
<p>When a user submits a domain for analysis, the plugin uses PHP’s built-in <code>dns_get_record()</code> function to query DNS records directly from your WordPress server. The domain name entered by the user is sent as a standard DNS query. This happens each time a user clicks the analyze button for any checker (SPF, DMARC, TLS-RPT, BIMI, or MTA-STS).</p>
<p>DNS lookups are handled by your server’s configured DNS resolver and are not routed through any external API.</p>
<h4>MTA-STS policy file fetch</h4>
<p>The MTA-STS checker fetches the domain’s MTA-STS policy file by making an HTTPS GET request to:<br />
    https://mta-sts.{domain}/.well-known/mta-sts.txt</p>
<p>This request is sent to the web server of the domain being analyzed (not to a third-party service). It is made each time a user analyzes a domain using the MTA-STS checker. Only the HTTP request itself is sent — no additional user data, cookies, or tracking information is included.</p>
<p>Since this request goes directly to the analyzed domain’s own web server, there is no third-party service provider with separate terms of use or privacy policy. The connection uses HTTPS with SSL verification enabled.</p>
<h4>Outbound links</h4>
<p>The plugin includes links to <a href="https://dmarcreport.com" rel="nofollow ugc">dmarcreport.com</a> and <a href="https://autospf.com" rel="nofollow ugc">autospf.com</a> (services by the plugin author, DuoCircle). These appear as “Powered by” watermarks and pricing call-to-action buttons within the checker interface. They are standard hyperlinks that open in a new browser tab when clicked by the user — no data is sent to these sites automatically by the plugin.</p>
<ul>
<li><a href="https://dmarcreport.com/terms-and-conditions/" rel="nofollow ugc">dmarcreport.com Terms and Conditions</a></li>
<li><a href="https://dmarcreport.com/privacy-policy/" rel="nofollow ugc">dmarcreport.com Privacy Policy</a></li>
<li><a href="https://autospf.com/terms-and-conditions/" rel="nofollow ugc">autospf.com Terms and Conditions</a></li>
<li><a href="https://autospf.com/privacy-policy/" rel="nofollow ugc">autospf.com Privacy Policy</a></li>
</ul>


DMARCREPORT Domain Auth Checker

Check SPF, DMARC, BIMI, MTA-STS and TLS-RPT records for any domain. Embed email authentication checkers with a shortcode.

Deliverability – pass DKIM, SPF, DMARC & more vs DMARCREPORT Domain Auth Checker