DMARC checker

Available at https://www.suped.com/tools/dmarc-checker.

Enter any domain to look up its DMARC record. No account required. The checker performs a live DNS lookup at _dmarc.yourdomain.com, parses the record, and runs pass/fail checks against best practices.

How it works

Enter a domain and click Check. Results show a total tests passed score, the raw DMARC TXT record, parsed tag values, and a detailed checks table. Click Info on passing checks or Fix it on failing checks for the full explanation and remediation steps. Click View sample to see results for suped.com without entering a domain.

Checks

• DMARC record found
• Single record (no duplicates)
• Record valid (syntax)
• Secure policy (p=quarantine or p=reject)
• Secure subdomain policy (sp=)
• DMARC report monitoring (rua= configured)
• External reporting authorized (if reports are sent off-domain)

Parsed output

The tool shows every tag it parses out of the record, including:

• v, p, sp, pct
• adkim and aspf alignment modes
• rua (aggregate) and ruf (forensic) reporting addresses
• fo failure reporting options

When to use it

• After making DNS changes - verify your DMARC record is published correctly and has no syntax errors.
• Checking a prospect's setup - quickly see how a domain's DMARC is configured before reaching out.
• Troubleshooting delivery issues - confirm the DMARC record is valid and policies are what you expect.

In-app version

The same DMARC checker is available inside the app under Tools → DMARC checker. Use it the same way you would the public tool. Results and the share link are identical to the public version.