RFC 2197 · DRAFT STANDARD · 1997
WED · 29 JUL 2026
SMTP Service Extension for Command Pipelining
Overview
RFC 2197, “SMTP Service Extension for Command Pipelining”, is a Draft Standard document published in September 1997 by N. Freed. It obsoletes RFC 1854. It has been obsoleted by RFC 2920 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This memo defines an extension to the SMTP service whereby a server can indicate the extent of its ability to accept multiple commands in a single TCP send operation. [STANDARDS-TRACK]
What “Draft Standard” means
A historical maturity level (retired in 2011) that sat between Proposed Standard and Internet Standard and required multiple interoperable implementations.
Read this RFC
The canonical text of RFC 2197 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1997
- RFC 2196 Site Security Handbook
- RFC 2198 RTP Payload for Redundant Audio Data
- RFC 2195 IMAP/POP AUTHorize Extension for Simple Challenge/Response
- RFC 2194 Review of Roaming Implementations
- RFC 2200 Internet Official Protocol Standards
- RFC 2193 IMAP4 Mailbox Referrals
- RFC 2201 Core Based Trees Multicast Routing Architecture
- RFC 2192 IMAP URL Scheme