Expired50% confidenceFactExact time
The np tag was introduced after RFC 7489 via a DMARC working group proposal and is formally discussed in the draft-ietf-dmarc-dmarcbis specification.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/6/2026
First Seen
Valid until: 10/4/2026(expired)
Sources
Why DMARC's NP Tag Conflicts with DNSSEC
hackernewshackernews7/5/2026
Related Claims
Cite This Claim
Stable URI
https://kongchang.com/claim/115154API
curl https://kongchang.com/api/v1/knowledge/claims/115154MCP
get_claim(id=115154)