You should use the mozilla-plugin
* sbl.spamhaus.org
* pbl.spamhaus.org
* dnsbl.njabl.org
* dnsbl.sorbs.net
* list.dsbl.org
* multihop.dsbl.org
* unconfirmed.dsbl.org
* bl.spamcop.net
* will-spam-for-food.eu.org
* blacklist.spambag.org
* blackholes.brainerd.net
* blackholes.uceb.org
* xbl.spamhaus.org
* spamsources.dnsbl.info
* map.spam-rbl.com
* ns1.unsubscore.com
* psbl.surriel.com
* l2.spews.dnsbl.sorbs.net
* bl.csma.biz
* sbl.csma.biz
* dynablock.njabl.org
* no-more-funn.moensted.dk
* ubl.unsubscore.com
* dnsbl-1.uceprotect.net
* dnsbl-2.uceprotect.net
* dnsbl-3.uceprotect.net
* spamguard.leadmon.net
* opm.blitzed.org
* bl.spamcannibal.org
* rbl.schulte.org
* dnsbl.ahbl.org
* 0spam.fusionzero.com
* virbl.dnsbl.bit.nl
* combined.rbl.msrbl.net