Newsgroups: comp.protocols.tcp-ip
Path: utzoo!utgpu!cunews!bnrgate!bwdls61!bnr.ca!mleech
From: mleech@bnr.ca (Marcus Leech)
Subject: Authenticated SMTP, anyone done one?
Message-ID: <1991Jun3.163841.4114@bwdls61.bnr.ca>
Keywords: authentication SMTP, RFCs
Sender: usenet@bwdls61.bnr.ca (Use Net)
Organization: Bell-Northern Research, Woodline Center
Date: Mon, 3 Jun 1991 16:38:41 GMT

Has anyone done an authenticated SMTP, and if so, is there an RFC in
  existence that describes it?

What I have in mind is something like the following:

Assume that there's a secure/authenticated channel between the User Agent
  and the MTA (sendmail or its equivalent). When the MTA establishes a
  connection to another SMTP MTA, that MTA issues a "challenge" or something
  to authenticate the transaction.  Anyone done one?

I realize that this breaks the existing SMTP philosophy of allowing any
  SMTP to connect to any other.  I'm thinking of corporate internets, rather
  than "the INTERNET".


-- 
Marcus Leech, 4Y11             Bell-Northern Research  |opinions expressed
mleech@bnr.ca                  P.O. Box 3511, Stn. C   |are my own, and not
VE3MDL@VE3JF.ON.CAN.NA         Ottawa, ON, CAN K1Y 4H7 |necessarily BNRs