Check XMail : http://www.maticad.it/davide/xmail.asp It can use RBL ( rbl.maps.vix.com ) and RSS ( relays.mail-abuse.org ) as long as many other MTA can. It then have a file that hold Your own list of spammers IPs and has a file that holds IP connection rules ( ALLOW, DENY ). Davide -- Feel free, feel Debian !