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Path: utzoo!linus!philabs!cmcl2!seismo!mcvax!ukc!cstvax!hwcs!jim
From: jim@hwcs.UUCP (Jim Crammond)
Newsgroups: net.mail,net.mail.headers
Subject: Re: From lines in mail headers
Message-ID: <567@hwcs.UUCP>
Date: Sun, 9-Jun-85 20:09:28 EDT
Article-I.D.: hwcs.567
Posted: Sun Jun  9 20:09:28 1985
Date-Received: Tue, 4-Jun-85 08:04:28 EDT
References: <487@bonnie.UUCP> <757@plus5.UUCP> <507@down.FUN> <761@plus5.UUCP>
Reply-To: jim@hwcs.UUCP (Jim Crammond)
Organization: Computer Sci., Heriot-Watt U., Scotland
Lines: 22
Xref: linus net.mail:839 net.mail.headers:352

In article <761@plus5.UUCP> hokey@plus5.UUCP (Hokey) writes:
>As entities with some intelligence, we can see that cbosgd!cbosgd.ATT.UUCP!db
>lists the same machine twice.  However, I have not yet seen a sendmail.cf
>file which could determine this "fact".

I can't think of anyway that sendmail can compare two arbitrary names
and strip one off if they are the same. Thus this must be dealt with in
the rmail front-end.

Once uucp headers like	"From cbosgd.ATT.UUCP!db ... remote from cbosgd"
become "standard" then rmail should probably ignore the "remote from system"
part (except to set the sender macro) and just pass the user part of the
header to sendmail as the "from" address.

If the first part of the user address (i.e. the bit before the first '!')
does not contain any domain seperators (i.e. '.'s) then the old approach
of prepending the system name to the user part can be done.

-Jim.
-- 
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-Jim Crammond		jim@hwcs.uucp