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Status:

EXPERIMENTAL

Authors:

K. Andersen
B. Long, Ed.
S. Blank, Ed.
M. Kucherawy, Ed.

Stream:

IETF

Source:

dmarc (art)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC8617

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Abstract

The Authenticated Received Chain (ARC) protocol provides anauthenticated "chain of custody" for a message, allowing each entitythat handles the message to see what entities handled it before andwhat the message's authentication assessment was at each step in thehandling.

ARC allows Internet Mail Handlers to attach assertions of messageauthentication assessment to individual messages. As messagestraverse ARC-enabled Internet Mail Handlers, additional ARC assertionscan be attached to messages to form ordered sets of ARC assertionsthat represent the authentication assessment at each step of themessage-handling paths.

ARC-enabled Internet Mail Handlers can process sets of ARC assertionsto inform message disposition decisions, identify Internet MailHandlers that might break existing authentication mechanisms, andconvey original authentication assessments across trust boundaries.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.