This is what I have Ninja/Vipre using these days. Zen.spamhaus.org
bl.spamcop.net dnsbl.njabl.org dnsbl.ahlb.org Zen gets 99% of them. I threw the others on awhile back and they do catch some. From: Martin Blackstone [mailto:mblackst...@gmail.com] Sent: Tuesday, October 06, 2009 7:00 AM To: MS-Exchange Admin Issues Subject: Top RBLs What are the top RBL's you are using these days? This message contains confidential information and is intended only for the intended recipient(s). If you are not the named recipient you should not read, distribute or copy this e-mail. Please notify the sender immediately via e-mail if you have received this e-mail by mistake; then, delete this e-mail from your system.