North American Network Operators Group

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Re: Proxy scanning for spam

  • From: Jim Segrave
  • Date: Wed Jul 07 08:35:17 2004
  • Organisation: Demon Internet Netherlands

On Tue 06 Jul 2004 (11:08 +0100), Stephen J. Wilcox wrote:
> 
> On Mon, 5 Jul 2004, Christopher J. Wolff wrote:
> 
> > 
> > Hello,
> > 
> > If I have a network segment connected to a BGP peer, is there a way that I
> > can hang a box of some kind off of that segment that will sniff out and
> > block malicious/spam email before it hits the customers?
> 
> policy route your port 25 at an adjacent box.. use some sort of iptables rules 
> to translate the ip address of the box and that will work also.

make sure no-one is running a mailserver that expects to do TLS
authentication or similar.

-- 
Jim Segrave           [email protected]