Path: utzoo!utgpu!watmath!iuvax!rutgers!att!jhc
From: jhc@att.ATT.COM (Jonathan Hawbrook-Clark)
Newsgroups: comp.mail.uucp
Subject: Re: HDB system forwarding restrictions?
Message-ID: <2736@att.ATT.COM>
Date: 8 Jun 89 22:18:54 GMT
References: <221@grc.UUCP>
Reply-To: jhc@att.ATT.COM (Jonathan Hawbrook-Clark)
Organization: AT&T Bell Laboratories, Middletown, NJ, USA
Lines: 32

In article <221@grc.UUCP> don@grc.UUCP (Donald D. Woelz) writes:
>I want to be able to restrict which systems can forward mail to
>which other systems.

You can't do this with UUCP permissions. All you can do is restrict
which systems have access to which commands. So that, for example,
you could say:

	MACHINE=a:b:c COMMANDS=rmail
	MACHINE=OTHER COMMANDS=

which would only allow those three machines to run rmail.

>What I am specifically looking for is a method to allow system A
>to forward mail to all other systems connected to me except system B or
>system C.  The opposite would also be okay, that is, system A can
>forward only to system B or system C as specified.

The easiest way to do this with your software is to write a shell
script or program which would check last-hop and next-hop for
whether they are allowed to do what they want, then if they are
invoke the real rmail, otherwise bounce the mail. To do this do
something like:

	MACHINE=OTHER COMMANDS=/usr/lib/uucp/rmail

or whatever you want to call it.
-- 
Jonathan Clark		jonathan@mtune.att.com, attmail!jonathan
Any affiliation is given for identification purposes only.

The Englishman never enjoys himself except for some noble purpose.