RFC 9991 - Domain-Based Message Authentication, Reporting, and Conformance (DMARC) Failure Reporting
- Status: Proposed Standard
- Published: May 2026
- Stream: IETF
- Updates: RFC6591
- Obsoletes: RFC7489
- Errata: No Errata
Abstract
Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a mechanism by which a Domain Owner can request feedback about email messages using their domain in the From: address field. This document describes "failure reports", or "failed message reports", which provide details about individual messages that failed to authenticate according to the DMARC mechanism.
This document updates RFC 6591 and obsoletes RFC 7489.
DMARC Document Set
- RFC 9989 - DMARC
- RFC 9990 - DMARC Aggregate Reporting
- RFC 9991 - DMARC Failure Reporting
- RFC 7489 - Original DMARC specification
Related Resources
- Official Text: RFC 9991
- Official Page: RFC 9991 DataTracker
- Errata: RFC Editor Errata