RFC 2554

"SMTP Service Extension for Authentication", March 1999

Canonical URL:

http://www.rfc-editor.org/rfc/rfc2554.txt
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Status:

PROPOSED STANDARD

Obsoleted by:

RFC 4954

Author:

J. Myers

Stream:

[Legacy]

Please refer here for any errata for this document. To submit a new errata report, go to the main errata page.

Abstract

This document defines an SMTP service extension [ESMTP] whereby an SMTP client may indicate an authentication mechanism to the server, perform an authentication protocol exchange, and optionally negotiate a security layer for subsequent protocol interactions. [STANDARDS-TRACK]

For the definition of Stream, see RFC 4844.