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RFC 8617
Title: The Authenticated Received Chain (ARC) Protocol
Author: K. Andersen,
B. Long, Ed.,
S. Blank, Ed.,
M. Kucherawy, Ed.
Status: Experimental
Stream: IETF
Date: July 2019
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 35
Characters: 70573
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-dmarc-arc-protocol-23.txt
URL: https://www.rfc-editor.org/info/rfc8617
DOI: 10.17487/RFC8617
The Authenticated Received Chain (ARC) protocol provides an
authenticated "chain of custody" for a message, allowing each entity
that handles the message to see what entities handled it before and
what the message's authentication assessment was at each step in the
handling.
ARC allows Internet Mail Handlers to attach assertions of message
authentication assessment to individual messages. As messages
traverse ARC-enabled Internet Mail Handlers, additional ARC assertions
can be attached to messages to form ordered sets of ARC assertions
that represent the authentication assessment at each step of the
message-handling paths.
ARC-enabled Internet Mail Handlers can process sets of ARC assertions
to inform message disposition decisions, identify Internet Mail
Handlers that might break existing authentication mechanisms, and
convey original authentication assessments across trust boundaries.
This document is a product of the Domain-based Message Authentication,
Reporting & Conformance Working Group of the IETF.
EXPERIMENTAL: This memo defines an Experimental Protocol for the
Internet community. It does not specify an Internet standard of any
kind. Discussion and suggestions for improvement are requested.
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