Re: smtp, errors and delivery

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Article #202

#202

From: Mark Crispin
Date: Mon, 05 Mar 1984 21:30

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Don -

     I take the middle ground.  I think it is completely alright
to reject a MAIL FROM command because of a syntax error PROVIDED
that the syntax parser COMPLETELY implements the standard.  That
includes:
 . all forms of quoting
 . source path route lists
 . bracketed or #'d host addresses in lieu of host names

     Very few SMTP servers do.  I believe TOPS-20's SMTP server
does (if it doesn't, it's a bug because all the code is there).

     I don't think an SMTP server should try to validate a host
name in a MAIL FROM command other than checking it for syntactical
validity.  RCPT TO: is a different matter entirely.

-- Mark --
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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!hou3c!MRC@SU-SCORE.ARPA
From: MRC@SU-SCORE.ARPA (Mark Crispin)
Newsgroups: net.mail.headers
Subject: Re: smtp, errors and delivery
Message-ID: <369@hou3c.UUCP>
Date: Mon, 5-Mar-84 16:30:58 EST
Article-I.D.: hou3c.369
Posted: Mon Mar  5 16:30:58 1984
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To: don.provan@CMU-CS-A.ARPA
Cc: Rudy.Nedved@CMU-CS-A.ARPA, Header-People@MIT-MC.ARPA
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