DNS & Email Trust
medium Severity
Free Check
DMARC Record Validation
Ensures a _dmarc TXT record exists to coordinate SPF and DKIM authentication results.
Why It Matters
DMARC protects your domain reputation by directing receiving servers how to handle spoofed emails.
How We Check This
We query DNS TXT records at _dmarc.yourdomain.com for v=DMARC1.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
# DNS TXT at _dmarc.yourdomain.com: v=DMARC1; p=reject; rua=mailto:dmarc-reports@yourdomain.com;
Frequently Asked Questions
What does rua= mean in DMARC?
rua specifies the email address where receiving mail servers send aggregated XML reports of delivery attempts.