RFC 9422
The LIMITS SMTP Service Extension, February 2024
- File formats:
- Also available: XML file for editing
- Status:
- PROPOSED STANDARD
- Authors:
- N. Freed
J. Klensin - Stream:
- IETF
- Source:
- NON WORKING GROUP
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC9422
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Abstract
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.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.