What blacklists should I use to make URLBody effective?
I recommend the Spamhaus SBL, as that lists the network space where the most prolific spammers have their websites. I would also recommend blacklisting China, Korea and Brazil (assuming you don’t get any legitimate email from these countries and don’t expect to be interested in sites hosted there), as these countries are heavily infested with American spammers’ sites and full of negligent ISPs who are only too happy to take their money.