Here's some more lists you can use. Look at the white listing as that can cut your FP and reduce your Spam Assassin load.
http://wiki.junkemailfilter.com/index.php/Spam_DNS_Lists -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
