Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!samsung!aplcen!jhunix!ecf_hap
From: ecf_hap@jhunix.HCF.JHU.EDU (Andrew Poling)
Newsgroups: comp.mail.sendmail
Subject: Re: Unknown user forwarding?
Summary: not hard at all
Message-ID: <3447@jhunix.HCF.JHU.EDU>
Date: 30 Nov 89 04:35:37 GMT
References: <1989Nov28.062023.19391@smsc.sony.com>
Reply-To: ecf_hap@jhunix.UUCP (Andrew Poling)
Followup-To: comp.mail.sendmail
Organization: The Johns Hopkins University - HCF
Lines: 48


In article <1989Nov28.062023.19391@smsc.sony.com> dce@smsc.sony.com (David Elliott) writes:
[...]
>What would be great is if we could have sendmail on these machines
>notice that the user being sent to is not a local user or local
>alias and rewrite the address as "user@smsc.sony.com".
>
>Does anyone know of a good way to do this with sendmail, or is my
>best bet to put a wrapper around /bin/mail that would do this
>for me?

I do exactly this on my machine for historical (hysterical) reasons.  It's
not hard at all.  IMHO, it's easier to have sendmail do these sorts of jobs
than re-invent the wheel...

At the top of your .cf file, do something like:

#
# /etc/local_logins is simply a list of logins cut(1) from /etc/passwd
#
FU/etc/local_logins



Then in Ruleset 0, where you handle local mail, do something like:

#
# If a simple username and not in /etc/local_logins, send to other_host
#
R$~U		$#ether $@other_host $:$1@other_host		non-local users

#
# Else-wise, it must be a local user
#
R$-		$#local $:$1					local users




Hope this helps and if you have further questions, feel free to mail me.

-Andy


Andy Poling                              Internet: andy@gollum.hcf.jhu.edu
Network Services Group                   Bitnet: ANDY@JHUVMS
Homewood Academic Computing              Voice: (301)338-8096    
Johns Hopkins University                 UUCP: mimsy!aplcen!jhunix!gollum!andy