A nifty addition for SpamAssassin and possibly hosting perimeters :
http://www.spamhaus.org/faq/answers.lasso?section=DROP
The DROP list is a text list of IP addresses that should be safe to block BEFORE they get a chance to spam you.
You'll want to create a process that pulls the current list once a day or so from here - http://www.spamhaus.org/drop/drop.lasso
http://www.spamhaus.org/faq/answers.lasso?section=DROP
The DROP list is a text list of IP addresses that should be safe to block BEFORE they get a chance to spam you.
You'll want to create a process that pulls the current list once a day or so from here - http://www.spamhaus.org/drop/drop.lasso