The IESG has approved the Internet-Draft 'SMTP Service Extension for Command Pipelining' <draft-freed-smtp-pipe-01.txt> as a Standard. This document replaces RFC2197, currently a Draft Standard. This has been reviewed in the IETF but is not the product of an IETF Working Group. The IESG contact person is Patrik Faltstrom. Technical Summary 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. Using a single TCP send operation for multiple commands can improve SMTP performance significantly. Working Group Summary The present document is an updated version of [RFC-2197], which in turn was a revision of [RFC-1854]. Only textual and editorial changes have been made; the protocol has not changed in any way. Protocol Quality Patrik Faltstrom has reviewed the protocol for the IESG. SMTP pipelining considerably reduces the number of round trips in the SMTP protocol. Implementations of SMTP pipeliningg have experienced a significant reduction in the average amount of time needed to transmit a message, and a corresponding decrease in message latency. Implementation information can be found at http://www.ietf.org/IESG/SMTP-PIPELINING-Standard-implementation
