Monitoring e-mails by TCP

Martin Hepworth maxsec at
Sun Mar 19 09:28:28 UTC 2006


MailScanner ( can this amongst it's anti-virus/spam/etc
protection capabilities.


On 3/18/06, Rodrigo G. Tavares de Souza <rodrigo at>
> Hi,
>   I'm very newbie  on freeBSD.
>   I have already installed the Firewall(ipfw) + NAT, Squid + Sarg and
> Apache Http Server, and is working pretty well! :-)
>   Now I have a need, and I don't know if I can do it with a  BSD solution!
>   My e-mail server is outside of my network, is a comercial mail server.
>   But, my e-mail trafic pass through a BSD server, the one I've
> mentioned before.
>   So, what do I need to do?
>   I need to make a copy of all received and delivered e-mail through my
> network!
>   Is this possible? Is there a sofware (free or not), or a firewall
> configuration to do it?
>   I think it would be a kind of TCP monitor on  ports 25 and 110, like
> some antivirus that scan e-mail trafic looking for virus!
>   Any help is welcome!
> Best regard for all.
> Rodrigo Souza
> Sao Paulo - Brazil
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