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RFC 9422: The LIMITS SMTP Service Extension

In plain English — editorial summary, not part of the RFC

This document defines a LIMITS extension for the Simple Mail Transfer Protocol (SMTP), including submission, as well as the Local Mail Transfer Protocol (LMTP). It also defines an associated limit registry. The extension provides the means for an SMTP, submission, or LMTP server to inform the client of limits the server intends to apply to the protocol during the current session. The client is then able to adapt its behavior in order to conform to those limits.

Document record

Document ID
RFC9422
Published
February 2024
Authors
N. Freed; J. Klensin
Status
PROPOSED STANDARD
Stream
IETF
Area
—
Pages
11
Also known as
—

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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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canonical URL: /rfc/9422-the-limits-smtp-service-extension