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RFC 9989

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Email Services

The New DMARC Standard: RFC 9989/9990/9991 Are Here

2026-08-05 Mailgun Blog

In May 2026, the IETF published the new DMARC standard RFC 9989/9990/9991, replacing RFC 7489. Core logic is unchanged, but np/psd tags are added and pct/rf/ri retired — senders should audit SPF/DKIM alignment now.