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date: Fri, 10 Oct 2025 04:07:08 GMT
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Information on RFC 1870 » RFC Editor
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- File formats:
- Status:
- INTERNET STANDARD
- Obsoletes:
- RFC 1653
- Authors:
- J. Klensin
N. Freed
K. Moore - Stream:
- IETF
- Source:
- smtpext (app)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC1870
Discuss this RFC: Send questions or comments to the mailing list iesg@ietf.org
Other actions: Submit Errata | Find IPR Disclosures from the IETF | View History of RFC 1870
Abstract
This memo defines an extension to the SMTP service whereby an SMTP client and server may interact to give the server an opportunity to decline to accept a message (perhaps temporarily) based on the client's estimate of the message size. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.
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