RFC 5451: Message Header Field for Indicating Message Authentication Status
This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 7001.
Current document in this lineage: RFC 8601 — Message Header Field for Indicating Message Authentication Status
In plain English — editorial summary, not part of the RFC
This memo defines a new header field for use with electronic mail messages to indicate the results of message authentication efforts. Any receiver-side software, such as mail filters or Mail User Agents (MUAs), may use this message header field to relay that information in a convenient way to users or to make sorting and filtering decisions. [STANDARDS-TRACK]
Document record
- Document ID
- RFC5451
- Published
- April 2009
- Authors
- M. Kucherawy
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- —
- Pages
- 43
- Also known as
- —
Topics
Standards lineage
This document is one revision in a chain of 6 RFCs, each formally replacing the one before it.
Read the full history of Message Header Field for Indicating Message Authentication Status →
Referenced by
2 later RFCs formally update or obsolete part of this document.
Related documents
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About this page
The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.
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