> blackholes.wirehub.net, > list.dsbl.org, > dnsbl.njabl.org, > relays.ordb.org, > dynablock.wirehub.net, > proxies.relays.monkeys.com, > dialups.relays.osirusoft.com, > spamhaus.relays.osirusoft.com, > orbs.dorkslayers.com, > socks.relays.osirusoft.com, > inputs.relays.osirusoft.com, > relays.visi.com, > opm.blitzed.org
FWIW I use pretty much the same list as Chris but get the most bang out of dnsbl.njabl.org -A
