Internet Assigned Numbers Authority • Domains • Protocols • Numbers • About Domain-based Message Authentication, Reporting, and Conformance (DMARC) Created 2015-01-27 Last Updated 2026-05-22 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registries Included Below • DMARC Tags • DMARC Report Formats DMARC Tags Registration Procedure(s) Specification Required Expert(s) Scott Kitterman Reference [RFC9989] Available Formats [IMG] CSV Tag Name Reference Status Description adkim [RFC9989] active DKIM Identifier Alignment mode aspf [RFC9989] active SPF Identifier Alignment mode fo [RFC9989] active Failure reporting options np [RFC9989] active Requested Domain Owner Assessment Policy for non-existent subdomains p [RFC9989] active Requested Domain Owner Assessment Policy pct [RFC7489] historic Sampling rate psd [RFC9989] active Indicates whether the DMARC Policy Record is published by a Public Suffix Domain rf [RFC7489] historic Failure reporting format(s) ri [RFC7489] historic Aggregate Reporting interval rua [RFC9989] active Reporting URI(s) for DMARC aggregate feedback reports ruf [RFC9989] active Reporting URI(s) for message-specific DMARC failure reports sp [RFC9989] active Requested Domain Owner Assessment Policy for subdomains t [RFC9989] active DMARC policy test mode v [RFC9989] active DMARC specification version DMARC Report Formats Registration Procedure(s) Specification Required Expert(s) Scott Kitterman Reference [RFC9989] Available Formats [IMG] CSV Format Name Reference Status Description afrf [RFC9989] active Authentication Failure Reporting Format (see [RFC6591]) Licensing Terms