Question for the Experts

[Gareth]

Configure the firewall on serverA to only accept connections on port 25
coming from serverB

On Thu, 2008-02-14 at 16:12, Kevin MURPHY wrote:
> Dear all
> 
>  
> 
> I recently made some changes to a domains mx record. It use to be, mx
> = serverA, which relays clean mail to Exchange Server
> 
> Because this domain was really getting hammered, I moved it to a more
> powerful spam filtering server.
> 
> MX Record is now ServerB, which fwds clean mail to ServerA, which
> relays it to the Exchange Server.
> 
>  
> 
> My Problem now is that some spammers are still sending mail direct to
> my ServerA for this Domain.
> 
>  
> 
> So I am looking at a way to configure the ServerA, so it only excepts
> mail for this domain if it comes from server (The more powerful one)
> So it drops the spammers on ServerA
> 
>  
> 
> Thanks
> 
>  
> 
> Kevin 
> 
>  
> 
> 
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