Requests for Comments (RFCs) are documents issued by the Internet Engineering Task Force (IETF) at the Network Information Center (NIC). Each such document defines an aspect of protocol surrounding the Internet. We have listed the RFCs that pertain to sendmail in reverse numeric order—that is, with the most recent documents cited first. Note that many of these are of interest only to historians. RFCs are available via the Web and anonymous FTP from: http://www.ietf.org.
SMTP Service Extension for Secure SMTP over Transport Layer Security P. Hoffman, February 2002, 7 pp.
SMTP Service Extension for Command Pipelining N. Freed, September 2000, 9 pp.
Deliver by SMTP Service Extension D. Newman, June 2000, 13 pp.
Internet Message Format P. Resnick, Editor, April 2001, 51 pp.
Simple Mail Transfer Protocol J. Klensin, Editor, April 2001, 79 pp.
SMTP Service Extension for Secure SMTP over TLS J. Myers, March 1999, 11 pp.
SMTP Service Extension for Secure SMTP over TLS P. Hoffman, January 1999, 8 pp.
Message Submission R. Gellens, J. Klensin, December 1998, 15 pp.
Mailbox Names for Common Services, Roles and Functions D. Crocker, May 1997, 6 pp.
Local Mail Transfer Protocol J. Myers, October 1996, 7 pp.
SMTP Service Extension for Remote Message Queue Starting J. De Winter, August 1996, 7 pp.
An Extensible Message Format for Delivery Status Notifications K. Moore, G. Vaudreuil, January ...