Free DMARC Record Checker & Policy Tool
DMARC publishes a policy telling receivers how to treat failures, and requires alignment: the domain that passed SPF or DKIM must match the From domain your recipient sees. This is why mail can pass SPF and still fail DMARC.
Worked example — _dmarc.example.com
Sample demonstration- PassRecord found
v=DMARC1; p=none; pct=100 - CheckPolicy
p=none — monitor onlyNothing is blocked. Correct while observing; move to quarantine once reports are clean.
- FixReporting address
missingWithout rua= you have a policy with no visibility into what it is doing. Add rua=mailto:dmarc@example.com
- PassCoverage
pct=100
Valid but effectively blind — add a reporting address before tightening the policy.
SadaSend runs these checks continuously on your sending domains, and refuses to send until they pass — so mail Gmail would reject never leaves.
Start freePredefined Real-World Test Scenarios
Live verification vectorsEnforces p=reject at 100% coverage with active XML reporting (rua=).
Strict reject policy preventing unauthorized senders from spoofing github.com.
Production p=reject policy with active DMARC aggregate and forensic telemetry.
Tests strict enforcement required by 2026 mailbox provider compliance rules.
What this checks
- The record exists at _dmarc and parses
- The policy (p=) is present and its effect is explained
- A reporting address (rua=) is set, so the policy is observable
- The percentage (pct=) and subdomain policy are sensible
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