IP Black listing problem

[Nabeel Moidu]

On Thu, Aug 7, 2008 at 2:22 PM, samuel dinakar sama <
samuel.dinakar at gmail.com> wrote:

> HI all,
>
> Straight to the  problem I am facing in my organization.  I am maintaining
> mail server Sendmail (fedora) .we  have a recurring problem , Public IP
> (internet gateway s/m) is getting black listed because of Spam.. I couldn't
> trace anything , How Trojan spam generated ? How to provide the security ?
>
> For this problem I have been changing the public IP , but it not a solution
> ..


Block outbound 25 from all servers except your mail server.

-- 
Thanks and Regards
Nabeel Moidu
Doha, Qatar