What makes you think they don't already have such a resource?
./Ok3ch

On Mon, May 4, 2009 at 5:05 PM, Alex Nderitu <nderitualex@gmail.com> wrote:
Hence the need for a resorce to keep track of rogue customers :) anyway,
cases of blocking port 25 are not limited to our telcos/ISPs. Its a
common practice as a way of limiting spam send from their networks.

http://www.postcastserver.com/help/Port_25_Blocking.aspx

 -----Original Message-----
From: Odhiambo  ワシントン <odhiambo@gmail.com>
Reply-to: Skunkworks forum <skunkworks@lists.my.co.ke>
To: Skunkworks forum <skunkworks@lists.my.co.ke>
Subject: Re: [Skunkworks] Good $afcom net connection
Date: Mon, 4 May 2009 16:48:22 +0300