Autor: W B Hacker Data: A: exim users Assumpte: Re: [exim] Restricting a user's email destinations?
Mike Cardwell wrote:
>
> Can you give an example please, because I don't get exactly how you
> think this could happen...
'Could happen' ??
We've done it for *years* with a python module as a regular service for a CMS.
Acts like a remote-controlled MUA, not the normal webmail client, as it uses
non-local smtp, pop, imap resources.
Lynx / lynx-ssl text-mode browser is another way - one you can try for yourself
really easily.
lynx http(s)://<your remote webmail account URI>
There are others.
As said, restricting *Exim* as to destinations is not hard.
Preventing general misbehaviour originating on your own server that might get
your IP blacklisted is a little more difficult. IPFW / IPF / iptables can help.
Preventing users from sending mail entirely, or otherwise restricting them to a
sub-set of destinations is a *lot* harder if you need to support a variety of
services on the same box.