Re: Blocking mail
On Sat, Jun 21, 2003 at 01:53:58PM +0100, Ken Gilmour wrote:
> Fri, 20 Jun 2003 12:15:17 -0600, Jamin W. Collins wrote:
>
> >Yea, configure your mail server to only send what it should. ?Block
> >all internal connections out to port 25 except those originating
> >from the sanctioned mail server.
>
> If i block all internal connections would they be able to send mail
> internally or would they be blocked from sending mail alltogether?
Sure, they are allowed to connect to the internal IP of the firewall on
port 25. They can then forward the message to the mail server and it
can route it based on it's configuration. Then you configure the mail
server to only allow certain users to send mail to external addresses.
--
Jamin W. Collins
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