I kept getting emails from noreply-dmarc-support@mydomain.com every day. After finishing a cool bucket hat design I wondered What is the rua tag in my DMARC record? Then, I did a little investigation and I remembered I set this myself when I was setting up my DMARC records in DNS.

The rua tag in a DMARC (Domain-based Message Authentication, Reporting & Conformance) record specifies the email address or addresses to which aggregate reports should be sent. These reports provide insights into how email from your domain is being handled and help you monitor the effectiveness of your DMARC policy.

Example of a DMARC Record with rua Tag

v=DMARC1; p=none; rua=mailto:dmarc-aggregate@yourdomain.com; ruf=mailto:dmarc-forensic@yourdomain.com; fo=1;

What is the rua tag used For?

Aggregate Reports: The rua tag tells receiving mail servers where to send aggregate reports. These reports include information about the email messages sent from your domain and whether they passed or failed SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) checks.

Monitoring: By analyzing these reports, you can identify unauthorized use of your domain, configure your SPF and DKIM settings properly, and eventually set a more strict DMARC policy (p=quarantine or p=reject).

Is it Safe to Remove the rua Tag?

Monitoring Loss: If you remove the rua tag, you will no longer receive aggregate reports. This means you won’t have visibility into how your domain’s email is being handled, which can make it difficult to detect misuse or misconfiguration.

Recommendation: It’s generally not recommended to remove the rua tag unless you have another mechanism in place to monitor your email authentication results. The insights provided by aggregate reports are valuable for maintaining and improving email security.

What is the rua tag conclusion

The rua tag is an important component of a DMARC record that helps you monitor email activity for your domain. Removing it would mean losing access to aggregate reports, which can be detrimental to maintaining proper email security. It is advisable to keep the rua tag in your DMARC record to continue receiving these valuable reports.

Hope this helps somebody out there. You can always contact me if you have any questions.

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