> -----Original Message-----
> From: Daniel Augusto Fernandes [mailto:[EMAIL PROTECTED]]
> "Ihnen, David" wrote:
> > How would that work?  What rules?
> 
> Well, he could set up two smtp servers in his net. One for 
> users who are
> allowed to send extern mail and other for those who are not 
> allowed. The
> first one should use SMTP-AUTH as in:
> http://members.elysium.pl/brush/qmail-smtpd-auth/
> 
> So, if one annoying user change his smtp server config in the MUA he
> would have to authenticate.
> 
> Then, he would have a firewall to deny port 25 packets from the second
> smtp server to the internet and allow it from the first server.
> 
> Is this all ok?

That would work, but I think it would kinda important to tell him that he
needs two servers and authentication to keep people from futzing with it.
That didn't seem to be an assumption in the scenario.

David

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