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Path: utzoo!watmath!clyde!burl!hou3c!Murray.pa@XEROX.ARPA
From: Murray.pa@XEROX.ARPA
Newsgroups: net.mail.headers
Subject: RFC821/822 updates/extensions
Message-ID: <508@hou3c.UUCP>
Date: Sat, 28-Apr-84 16:47:40 EDT
Article-I.D.: hou3c.508
Posted: Sat Apr 28 16:47:40 1984
Date-Received: Mon, 30-Apr-84 00:58:46 EDT
Sender: ka@hou3c.UUCP (Kenneth Almquist)
Lines: 6
To: Header-People@MIT-MC.ARPA
Cc: Murray.pa@XEROX.ARPA

Does anybody have a collection of updates and/or extensions to
RFC821/822 that are needed by a real world mail system? I already know
about SMTP reply code of 050, MAIL FROM <>, full words for days and
months, BST for a time zone, "."s in the phrase part of a route-addr,
and name "at" host. How many more krocks/tweaks are there in common use
that I don't (yet) know about?