This is quite an interesting trick. Never actually thought about it. I did a quick Google and found this. http://mail-archives.apache.org/mod_mbox/spamassassin-users/200704.mbox/[EMAIL PROTECTED] If that is any help. DNSRBL format would be best for me.
Curtis LaMasters http://www.curtis-lamasters.com http://www.builtnetworks.com
