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Date:      Tue, 13 May 1997 22:07:47 -0400
From:      Joel Ray Holveck <joelh@gnu.ai.mit.edu>
To:        jmb@FreeBSD.ORG
Cc:        p.richards@elsevier.co.uk, chat@FreeBSD.ORG
Subject:   Re: Reply-to addresses
Message-ID:  <199705140207.WAA26714@diazepam.gnu.ai.mit.edu>
In-Reply-To: <199705132136.OAA16458@hub.freebsd.org> (jmb@FreeBSD.ORG)

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>	majorodmo cannot do the auto-pruning, by the time the messag
>	gets to majordomo, it has already been sent to all recipients
>	sendmail therefore must do the pruning.  as far as i know, 
>	sendmail is not able to do this.  

sendmail here will properly prune mailing lists if they are expanded
in /etc/aliases (or its include file).  But I thought that
chat@freebsd.org was a majordomo robot which exploded the message and
sent it out, in which case it could look at the To: and Cc: headers
anyway.

If sendmail's expanding the aliases, then it can prune.  I'll send you
our sendmail.cf if it'll help.

>	even so, it would fail to handle .forward files (on other hosts)
>	and perhaps remote /etc/aliases as well (depending upon the
>	mail transfer agent at the far end and its configuration)

Yes...ish...

Used to, I would actually send and receive mail at
gnu.ai.mit.edu!detlev!joelh, detlev being my home box that would dial
up to an ISP and then UUCP in the mail.  But my From: and Reply-To:
lines would still mark joelh@gnu.ai.mit.edu, which would be .forwarded
to me.  Also, I would subscribe to mailing lists as joelh@gnu.  The
bottom line there, is that anybody sending me mail would send it to
the same address, so pruning could occour.  I would think that a fair
number of people who forward their mail use the subscription address
in From:, so it would DTRT for them as well.

And the vast majority, I would think, get their mail straight to their
end boxes, no .forward, no /etc/aliases.

Happy hacking,
joelh

-- 
http://www.wp.com/piquan --- Joel Ray Holveck --- joelh@gnu.ai.mit.edu
All my opinions are my own, not the Free Software Foundation's.

Second law of programming:
Anything that can go wrong wi
sendmail: segmentation violation -- core dumped



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