On 4/25/2012 7:42 AM, Prabhpal S. Mavi wrote: > i work with ISP, we host email service for almost 500+ companies and 200+ > mail servers relay through my smart host. > > i implemented something that when our smart host would become blacklisted. > It will automatic switch to next available smart host (which is ready > sitting). that mean it will start relaying message through another smart > host automatically. well, as someone who has been really fighting spam lately I can say that that system will definitely work out quite well and most bulk spammers use something like that. with that many companies and mail servers, I have no idea how you can police them...wow _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos