Blacklists Compared

19 March 2005

[ Fighting Spam | Dialup Zones | Blacklists Compared | Current Blacklist Comparison | Sendmail Configuration ]

Survey results for all known public IP-based DNS blacklists. Lookups were done on connecting IP addresses. The "union of most IP zones" line excludes the exemptions.ahbl.org and query.bondedsender.org zones because they are not blacklists.

HitsDNS Zone
36625(total number of IP addresses tested, including 423 at SDSC)
31512(union of most IP zones)
21695t1.dnsbl.net.au
21183blackholes.five-ten-sg.com (union of all results)
20442blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
16053dnsbl.sorbs.net (union of all results)
15411sbl-xbl.spamhaus.org (union of all results)
14138xbl.spamhaus.org (union of all results)
13274cbl.abuseat.org
13229xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
13226sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
11330cn-kr.blackholes.us (union of all results)
11159dnsbl.sorbs.net (result 127.0.0.10 = dialup)
10522no-more-funn.moensted.dk (union of all results)
9447unconfirmed.dsbl.org
9354list.dsbl.org
9350dsbl.dnsbl.net.au
9042dynablock.njabl.org
8183rmst.dnsbl.net.au
7622cn-kr.blackholes.us (result 127.0.0.3 = Korea)
7622korea.blackholes.us
7615korea.services.net
7476psbl.surriel.com
7453sbl.csma.biz
7054no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
6149combined-hib.dnsiplists.completewhois.com (union of all results)
6119combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4595bl.spamcop.net
4498bl.csma.biz
4379dnsbl.njabl.org (union of all results)
3742blacklist.spambag.org
3708cn-kr.blackholes.us (result 127.0.0.2 = China)
3708china.blackholes.us
3582dnsbl.njabl.org (result 127.0.0.9 = open proxy)
3310l2.spews.dnsbl.sorbs.net
3239opm.blitzed.org
3215xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3214sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3015wpbl.dnsbl.net.au
2920dnsbl.ahbl.org (union of all results)
2876spews.dnsbl.net.au
2853dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
2850l1.spews.dnsbl.sorbs.net
2404spamsources.fabel.dk
2296ricn.dnsbl.net.au
2231dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1946sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1946sbl.spamhaus.org
1908dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1735dnsbl.regedit64.net
1647no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1612spam.wytnij.to
1450dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1397dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1377dnsbl.antispam.or.id
1269pdl.blackholes.us
1187no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
1170dnsbl.rangers.eu.org (union of all results)
1023unsure.nether.net
1009dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
992comcast.blackholes.us
985brazil.blackholes.us
975bl.spamcannibal.org
717japan.blackholes.us
660dnsbl.ahbl.org (result 127.0.0.4 = spam source)
642probes.dnsbl.net.au
631dnsbl.njabl.org (result 127.0.0.3 = dialup)
471level3.blackholes.us
455ybl.megacity.org
454no-more-funn.moensted.dk (result 127.0.0.9 = misc)
421taiwan.blackholes.us
417rr.blackholes.us
408russia.blackholes.us
387blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
299charter.blackholes.us
278mexico.blackholes.us
267cw.blackholes.us
252argentina.blackholes.us
249blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
221mail-abuse.blacklist.jippg.org
208interbusiness.blackholes.us
196tr.countries.nerd.dk
195no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
192turkey.blackholes.us
189blackholes.intersil.net
187hongkong.blackholes.us
163ohps.dnsbl.net.au
161qwest.blackholes.us
155query.bondedsender.org (not a blacklist!)
147singapore.blackholes.us
139dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
127wanadoo-fr.blackholes.us
127thailand.blackholes.us
124malaysia.blackholes.us
112verio.blackholes.us
105above.blackholes.us
100internap.blackholes.us
93xo.blackholes.us
91dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
90dnsbl.njabl.org (result 127.0.0.4 = spam source)
85dnsbl.njabl.org (result 127.0.0.2 = source or relay)
82multihop.dsbl.org
79relays.ordb.org
72flowgoaway.com
70cybercon.blackholes.us
66osps.dnsbl.net.au
59ph.rbl.cluecentral.net
56bellsouth.blackholes.us
55dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
55blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
43nigeria.blackholes.us
43inflow.blackholes.us
42he.blackholes.us
42covad.blackholes.us
40a2000.blackholes.us
40relays.nether.net
39rogers.blackholes.us
34dialup.blacklist.jippg.org (union of all results)
33dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
32osrs.dnsbl.net.au
30eli.blackholes.us
30combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
29dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
27yipes.blackholes.us
26infolink.blackholes.us
24telstra.blackholes.us
24blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
23lauderdale.blackholes.us
23dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
22spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
22spamguard.leadmon.net (union of all results)
21dnsbl.sorbs.net (result 127.0.0.5 = open relay)
20dnsbl.ahbl.org (result 127.0.0.15 = open relay)
18exemptions.ahbl.org (not a blacklist!)
16rackspace.blackholes.us
16broadwing.blackholes.us
16dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
16blackholes.uceb.org (union of all results)
14dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
14blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
13blackholes.uceb.org (result 127.0.0.3 = spam source)
13rdts.dnsbl.net.au
12burst.blackholes.us
12affinity.blackholes.us
11maxim.blackholes.us
10swbell.blackholes.us
10hil.habeas.com
10blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
9blackholes.brainerd.net
7olm.blackholes.us
7satos.rbl.cluecentral.net
5navisite.blackholes.us
5bl.deadbeef.com
4epoch.blackholes.us
3pajo.blackholes.us
3blackholes.uceb.org (result 127.0.0.2 = open relay)
3owps.dnsbl.net.au
3no-more-funn.moensted.dk (result 127.0.0.8 = open web form)
2ciberlynx.blackholes.us
1media3.blackholes.us
1dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1spamsites.dnsbl.net.au
1dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
1blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
1blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)
1dnsbl.ahbl.org (result 127.0.0.10 = shoot on sight spammer)

The blackholes.intersil.net zone "lists entrenched spammers, mainsleaze and mainsleaze wannabes who have pestered users at Intersil." The flowgoaway.com zone lists FloNetwork systems.

Survey results for all known public domain-name-based DNS blacklists. Lookups were done on the domain names of connecting IP addresses.

HitsDNS Zone
36625(total number of IP addresses whose names were tested, including 423 at SDSC)
15611(union of all domain zones)
12128abuse.rfc-ignorant.org
7986rddn.dnsbl.net.au
3990whois.rfc-ignorant.org (union of all results)
3476dynamic.rhs.mailpolice.com
2914whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
1735webmail.rhs.mailpolice.com
1077whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
893rhsbl.ahbl.org
510bulk.rhs.mailpolice.com
401adv.rhs.mailpolice.com
246bl.deadbeef.com
18postmaster.rfc-ignorant.org
16dsn.rfc-ignorant.org (zone not intended for this use)
12porn.rhs.mailpolice.com
1blackhole.securitysage.com
1bogusmx.rfc-ignorant.org

Survey results for all known public domain-name-based DNS blacklists. Lookups were done on SMTP sender domains.

HitsDNS Zone
24148(total number of domains tested, including 328 at SDSC)
6372(union of all domain zones)
2435whois.rfc-ignorant.org (union of all results)
2011whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1978abuse.rfc-ignorant.org
1042rhsbl.ahbl.org
944webmail.rhs.mailpolice.com
941postmaster.rfc-ignorant.org
706dsn.rfc-ignorant.org
611bulk.rhs.mailpolice.com
424whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
278bogusmx.rfc-ignorant.org
203blackhole.securitysage.com
191adv.rhs.mailpolice.com
136bl.deadbeef.com
106porn.rhs.mailpolice.com
80rddn.dnsbl.net.au (zone not intended for this use)
47rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
47rhsbl.sorbs.net (union of all results)
31dynamic.rhs.mailpolice.com
14ex.dnsbl.org
1fraud.rhs.mailpolice.com
1cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 1 April 2005.