[CentOS] How to handel smtp to public servers

Kahlil Hodgson

kahlil.hodgson at dealmax.com.au
Thu Jun 28 23:07:28 UTC 2012

On 27/06/12 18:23, Götz Reinicke wrote:
> I like to know which private computer sends lot of mail. :)

You could get your firewall ACCEPT but LOG the outgoing 25 from anything 
but your mailhub.

Have often wondered whether a transparent mail-proxy could be set up,
similar to a transparent web-proxy, with your firewall catching all port 
80 and redirecting to 8080 on your squid server.  Never got around to 
seeing whether this was possible ...

... then again I agree with the others, blocking outgoing port 25 is the 
better idea, but only if it is not going to get you fired.



Kahlil (Kal) Hodgson                       GPG: C9A02289
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