Verified65% confidenceFactExact time
DMARC is an email authentication protocol built on top of SPF and DKIM that allows domain owners to tell receiving parties how to handle emails that fail authentication.
3
Sources
65%
Confidence
Long-term
Relevance
7/6/2026
First Seen
Sources
Why DMARC's NP Tag Conflicts with DNSSEC
hackernewshackernews7/5/2026
Related Claims
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