DMARC Record Checker

Updated for DMARCbis (RFC 9989, May 2026): this checker flags the now-deprecated pct=, rf= and ri= tags that most older records still carry — one of the few free checkers validating against the new standard.

Why DMARC is no longer optional

Since 2024, Google and Yahoo require DMARC for bulk senders, and Microsoft followed for high-volume domains in 2025. In 2026, sending cold email without DMARC means immediate deprioritization — often straight to spam regardless of content quality.

Reading your result

• p=none — monitoring mode. Legitimate while you collect reports, but weak as an end state; receivers factor policy strength into reputation.
• p=quarantine — failing mail goes to spam. The right target for most outbound teams.
• p=reject — failing mail is refused outright. Strongest signal; adopt once alignment is verified clean.
• rua= — where aggregate reports go. Without it you have zero visibility into spoofing or alignment failures.

FAQ

Where does the DMARC record live?

A TXT record at _dmarc.yourdomain.com, starting with v=DMARC1.

Do I need DMARC on secondary sending domains?

Yes — especially there. Outbound teams typically run lookalike domains to protect the main brand; each one needs its own SPF, DKIM and DMARC to inbox.