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Date: Mon, 19 Dec 1994 01:49:44 -1000 (HST)
From: "James H. Thompson" <jht@aloha.net>
To: Dr Eberhard W Lisse <el@lisse.na>
Subject: Re: phantom domains/mx records (fwd)
In-Reply-To: <m0rHpyK-0007G8C@lisse.na>

On Wed, 14 Dec 1994, Dr Eberhard W Lisse wrote:

> In message
<Pine.BSI.3.91.941213110000.13133B-100000@hookomo.aloha.net>"James H.
Thompson
> " writes
> >
> >Thanks for the info.
> >
> >Assuming xxx.com and yyy.com have mx records pointing to the same
> >host and those names are in the more_hostnames,
> >Is there any way to have
> >
> > aaa@xxx.com
> >and
> > aaa@yyy.com
> >
> >go to different mailboxes?
>
>
> What about the /usr/lib/smail/forward* files?
>
> I think you could leave the more_hostnames thing out and put each and
> every username there. Smail would then do what you want. Not elegant
though :-)-O.
>

This looks promising, The only problem I ran into when I tried it
was that the forwardfile director does not pass the address structure
to the expand_string routine so that the host name portion of the
address is not available when you try to do something like:

forwardx:
driver=forwardfile,
owner=Postmaster, # errors can't go to the user's mailbox
nobody, # use nobody user, if unsecure
sender_okay; # sender never removed from expansion

file=remap_${lc:top:input_addr},
checkowner, # the user can own this file
owners=root, # or root can own the file
modemask=0022, # only owner should be able to write
# modemask=0002, # under System V, group mail can write
caution=0-10:uucp:daemon, # don't run things as root or daemons

The "file=remap..." is not expanded at all because only ${user} is
available.

It appears that it would be very easy (changes to one or two lines of
code) to pass the address info into the expand_string routine from the
forwardfile director. Is there any reason not to make this change?

Another approach would be to enable full string expansion on
the file= option for the alias file director, then you could
have one alias file per host name.

Jim
jht@aloha.net