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Status:

INFORMATIONAL

Updated by:

RFC 8553,RFC 8616

Authors:

M. Kucherawy, Ed.
E. Zwicky, Ed.

Stream:

INDEPENDENT

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DOI:  https://doi.org/10.17487/RFC7489

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Abstract

Domain-based Message Authentication, Reporting, and Conformance(DMARC) is a scalable mechanism by which a mail-originatingorganization can express domain-level policies and preferences formessage validation, disposition, and reporting, that a mail-receivingorganization can use to improve mail handling.

Originators of Internet Mail need to be able to associate reliableand authenticated domain identifiers with messages, communicatepolicies about messages that use those identifiers, and report aboutmail using those identifiers. These abilities have several benefits:Receivers can provide feedback to Domain Owners about the use oftheir domains; this feedback can provide valuable insight about themanagement of internal operations and the presence of external domainname abuse.

DMARC does not produce or encourage elevated delivery privilege ofauthenticated email. DMARC is a mechanism for policy distributionthat enables increasingly strict handling of messages that failauthentication checks, ranging from no action, through altereddelivery, up to message rejection.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.