Tools Learn Login Sign up
DMARC Checker

Is your domain protected from spoofing?

Analyze any domain's DMARC record — see the policy, what each tag means, what's wrong, and the exact steps to reach p=reject and stay compliant with Gmail, Yahoo and Microsoft.

Try: google.com · github.com
📧
Why DMARC matters now

Since 2024, Gmail, Yahoo and Microsoft require bulk senders (5,000+/day) to publish DMARC — non-compliant mail is now permanently rejected. But p=none only watches; real protection needs quarantine then reject.

This tool grades where you are and shows the safe path forward.

Monitor your email security continuously

Track SPF, DKIM, DMARC and MTA-STS across your domains and get alerted when they change.

Full email scan

Report a bug

We're new and growing — your feedback helps us improve.

Click to upload, or paste (Ctrl+V) an image