// FREE TOOL
DMARC Record Checker
No signup. No limits. Same continuous check we run on every managed mailbox.
What DMARC adds
Tells receivers what to do when SPF or DKIM fails. Without it, receivers guess; with it, you control whether failing mail is delivered, quarantined, or rejected.
The 2024 bulk-sender rules
Google and Yahoo now require DMARC (minimum p=none) for senders above 5,000/day. Non-compliance lands you in spam.
The graduation path
p=none with rua → p=quarantine pct=10 → 50 → 100 → p=reject. Move only when reports show no legitimate mail fails.
Common questions
For Google/Yahoo bulk sender compliance, yes. For actual spoofing protection, no — graduate to quarantine, then reject.
CLAYINBOX runs this check continuously on every domain it manages — automatically.