RFC 1870: SMTP Service Extension for Message Size Declaration
In plain English — editorial summary, not part of the RFC
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]
Document record
- Document ID
- RFC1870
- Published
- November 1995
- Authors
- J. Klensin; N. Freed; K. Moore
- Status
- INTERNET STANDARD
- Stream
- IETF
- Area
- app
- Pages
- 9
- Also known as
- STD10
- Obsoletes:
- RFC 1653
Topics
Standards lineage
This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.
- RFC 1427 (1993)
- RFC 1653 (1994)
- RFC 1870 (1995)
Read the full history of SMTP Service Extension for Message Size Declaration →
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 1854SMTP Service Extension for Command PipeliningObsoleted
October 1995
- RFC 2821Simple Mail Transfer ProtocolObsoleted
April 2001
- RFC 3885SMTP Service Extension for Message TrackingCurrent
September 2004
- RFC 4141SMTP and MIME Extensions for Content ConversionCurrent
November 2005
- RFC 3461Simple Mail Transfer Protocol (SMTP) Service Extension for Delivery Status Notifications (DSNs)Updated
January 2003
- RFC 3463Enhanced Mail System Status CodesUpdated
January 2003
- RFC 3848ESMTP and LMTP Transmission Types RegistrationCurrent
July 2004
- RFC 3865A No Soliciting Simple Mail Transfer Protocol (SMTP) Service ExtensionCurrent
September 2004
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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.
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