Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!ateng!chip
From: chip@ateng.com (Chip Salzenberg)
Newsgroups: comp.mail.uucp
Subject: Re: Smail, Aliases & Programs
Keywords: smail alias
Message-ID: <25687B9B.29705@ateng.com>
Date: 20 Nov 89 22:32:57 GMT
References: <590@piglet.vision.UUCP> <974@becker.UUCP> <254733A5.10634@ateng.com> <13074@s.ms.uky.edu> <254CCBB1.19467@ateng.com> <1989Nov2.200712.163@twwells.com> <255344AF.10561@ateng.com> <1989Nov6.064722.15635@twwells.com> <2558A19B.26552@ateng.com> <1989Nov13.09
Organization: A T Engineering, Tampa, FL
Lines: 77

According to bill@twwells.com (T. William Wells):
>According to chip@ateng.com (Chip Salzenberg):
>:       case "$u" in
>:       news-*)
>:           group=`echo $u | sed -e 's/^news-//' -e 'y/-/./'`
>:           cat $HEADER $BODY | mailnews-gateway $group
>:           echo DROP ;;
>
>So, with this one, someone can mail to news-comp-mail-uucp and it
>goes to this newsgroup?

Yes.  I'm using a variant of this script on ateng for the local "ate.*"
hierarchy.  Messages to "ate-*" or "ate.*" become local articles.  I've not
installed a general "news-*" alias because I don't want one yet. :-)

>Neat. I doubt I could do that sort of thing with lmail unless I
>were to add some kind of wildcarding or regular expressions. And I
>think that that goes way beyond what I'd want to do. And besides,
>there's already a solution. :-)

I see your point... though shoehorning in Henry Spencer's regexp routines
shouldn't be much of a trick.

>What I'd like to have is, if the To: address in locally generated
>mail does not contain an @ or !, to have my domain appended to
>it. While I don't know Deliver well enough to construct the
>script, I'm sure it can be done.

No problem.  Here's one specialized for a mailing list.  If you want a more
general one, let me know.

	case "$u" in
	mailing-list)
		TO=`header -f To $HEADER`
		case "${SENDER} ${TO}" in
		*[!@]*)
		    echo "$u" ;;
		*)
		    # Local mail to local address
		    ( header -nvf To $HEADER
		      echo "To: mailing-list@mydomain"
		      echo ""
		      cat $BODY ) | smail -t
		    echo DROP
		    ;;
		esac
		;;
	*)      echo "$u" ;;
	esac

>But I think that this would best be done in smail rather than
>Deliver or lmail since smail sees all mail, whereas lmail or
>Deliver only sees it if it is a local address.

Well, it should be done in Smail, yes.  But it's eminently reasonable for a
user of Smail 2.5 to have Deliver handle _all_ mail, local and remote.  For
UUCP addresses, Deliver will invoke uux, but you might want to do some fancy
special-case routing first -- just the kind of thing Deliver is best at.

>If a local address does not have forwarding set, I'd check for .deliver
>and, if it is present, alias the user name to the Deliver command.

Yes, that's what I meant.  :-)

>:       try-mail:       "root|/usr/bin/deliver @"
>:       bad-mail:       "root/Badmail"
>
>More likely, what I'd do is to append the list of failed names to
>the command, without any special interpolation character.

Sounds reasonable to me.  You may want to consider a try-mail that's not a
pipe to be in error.  If you really want it in a mailbox you should have
used bad-mail instead.
-- 
You may redistribute this article only to those who may freely do likewise.
Chip Salzenberg at A T Engineering;  <chip@ateng.com> or <uunet!ateng!chip>
    "Did I ever tell you the Jim Gladding story about the binoculars?"