DMARC checker

Validate DMARC policy, aggregate reporting and anti-spoofing DNS configuration.

DMARC DNS Authentication Guide

What does a DMARC checker validate?

It reads _dmarc DNS TXT records and checks policy mode, duplicate records and reporting configuration.

Is p=none enough for protection?

p=none is monitoring only. For enforcement, domains normally move to quarantine or reject after reports are reviewed.

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