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Path: utzoo!decvax!decwrl!ucbvax!SIMTEL20.ARPA!MRC
From: MRC@SIMTEL20.ARPA.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: failed mail from DCP
Message-ID: <12218271857.14.MRC@SIMTEL20.ARPA>
Date: Fri, 27-Jun-86 20:11:52 EDT
Article-I.D.: SIMTEL20.12218271857.14.MRC
Posted: Fri Jun 27 20:11:52 1986
Date-Received: Sat, 28-Jun-86 10:56:02 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 10
Approved: tcp-ip@sri-nic.arpa

The problem is in the SMTP sender at the Symbolics end.  There is a
bogus space after "MAIL From:" before the "<" that begins the return
path.  RFC 821 is quite specific about where spaces are expected and
where they are not expected.  You cannot say "MAIL FROM: <FOO@BAR>",
you must say "MAIL FROM:<FOO@BAR>".

TOPS-20 isn't the only SMTP server that is fussy about this.  Even some
Unix-based servers insist upon compliance to the spec here.

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