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Path: utzoo!watmath!clyde!burl!hou3c!steve@brl-bmd.ARPA
From: steve@brl-bmd.ARPA (Stephen Wolff)
Newsgroups: net.mail.msggroup
Subject: Re:  electronic-mail "telephone directory"
Message-ID: <347@hou3c.UUCP>
Date: Wed, 29-Feb-84 04:55:15 EST
Article-I.D.: hou3c.347
Posted: Wed Feb 29 04:55:15 1984
Date-Received: Fri, 2-Mar-84 07:27:09 EST
Sender: ka@hou3c.UUCP (Kenneth Almquist)
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To: speck@cit-vax
Cc: MsgGroup@brl

And rfc812 or more generally rfcnnn is available via ANONYMOUS FTP of the file

			rfcnnn.txt
at SRI-NIC.