Blacklists Compared

18 June 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
40109(total number of IP addresses tested, including 391 at SDSC)
34983(union of most IP zones)
22890t1.dnsbl.net.au
17750dnsbl.sorbs.net (union of all results)
17176sbl-xbl.spamhaus.org (union of all results)
15595xbl.spamhaus.org (union of all results)
14767sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
14708xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
12595cbl.abuseat.org
12431dnsbl.sorbs.net (result 127.0.0.10 = dialup)
10856cn-kr.blackholes.us (union of all results)
10189dynablock.njabl.org
10002rmst.dnsbl.net.au
9505list.dsbl.org
9503dsbl.dnsbl.net.au
9497unconfirmed.dsbl.org
8935no-more-funn.moensted.dk (union of all results)
8425blackholes.five-ten-sg.com (union of all results)
8044blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
7245psbl.surriel.com
6712sbl.csma.biz
5834cn-kr.blackholes.us (result 127.0.0.3 = Korea)
5834korea.blackholes.us
5793korea.services.net
5475combined-hib.dnsiplists.completewhois.com (union of all results)
5423combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
5187no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
5022cn-kr.blackholes.us (result 127.0.0.2 = China)
5022china.blackholes.us
4193bl.spamcop.net
4102blacklist.spambag.org
3677bl.csma.biz
3623dnsbl.njabl.org (union of all results)
3432dnsbl.ahbl.org (union of all results)
3355l2.spews.dnsbl.sorbs.net
3059dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
2972dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
2921l1.spews.dnsbl.sorbs.net
2830dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2664spews.dnsbl.net.au
2522spamsources.fabel.dk
2285sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2272xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2271wpbl.dnsbl.net.au
2244dnsbl.rangers.eu.org (union of all results)
2201opm.blitzed.org
1930dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
1874dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1770dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1686sbl.spamhaus.org
1683sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1654no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1615xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1614sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1549brazil.blackholes.us
1481dnsbl.regedit64.net
1410pdl.blackholes.us
1354no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
1290ricn.dnsbl.net.au
1264unsure.nether.net
1122bl.spamcannibal.org
1084dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1015comcast.blackholes.us
978spam.wytnij.to
975dnsbl.antispam.or.id
906japan.blackholes.us
901taiwan.blackholes.us
577no-more-funn.moensted.dk (result 127.0.0.9 = misc)
571dnsbl.njabl.org (result 127.0.0.3 = dialup)
558rr.blackholes.us
538probes.dnsbl.net.au
489argentina.blackholes.us
457russia.blackholes.us
451dnsbl.ahbl.org (result 127.0.0.4 = spam source)
426charter.blackholes.us
421mci.blackholes.us
409hongkong.blackholes.us
355mexico.blackholes.us
241interbusiness.blackholes.us
222cw.blackholes.us
220dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
215blackholes.intersil.net
214blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
201tr.countries.nerd.dk
196turkey.blackholes.us
187query.bondedsender.org (not a blacklist!)
183mail-abuse.blacklist.jippg.org
182qwest.blackholes.us
178no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
175level3.blackholes.us
167singapore.blackholes.us
157ybl.megacity.org
154dnsbl.njabl.org (result 127.0.0.2 = open relay)
140thailand.blackholes.us
131malaysia.blackholes.us
128internap.blackholes.us
120blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
117verio.blackholes.us
117dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
104ohps.dnsbl.net.au
100wanadoo-fr.blackholes.us
90relays.ordb.org
88xo.blackholes.us
88flowgoaway.com
82dnsbl.njabl.org (result 127.0.0.4 = spam source)
76cybercon.blackholes.us
75dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
73multihop.dsbl.org
58above.blackholes.us
57bellsouth.blackholes.us
47osps.dnsbl.net.au
46broadwing.blackholes.us
46a2000.blackholes.us
45dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
43he.blackholes.us
41telstra.blackholes.us
35osrs.dnsbl.net.au
34rogers.blackholes.us
34covad.blackholes.us
33inflow.blackholes.us
31lauderdale.blackholes.us
31combined-hib.dnsiplists.completewhois.com (result 127.0.0.3 = hijacked network)
30eli.blackholes.us
30exemptions.ahbl.org (not a blacklist!)
25blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
24relays.nether.net
21combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
21blackholes.uceb.org (union of all results)
20rdts.dnsbl.net.au
18infolink.blackholes.us
17yipes.blackholes.us
17dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
13maxim.blackholes.us
13blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
12rackspace.blackholes.us
12blackholes.uceb.org (result 127.0.0.3 = spam source)
11epoch.blackholes.us
11affinity.blackholes.us
11spamguard.leadmon.net (union of all results)
10nigeria.blackholes.us
10spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
9blackholes.brainerd.net
8swbell.blackholes.us
8olm.blackholes.us
8dnsbl.sorbs.net (result 127.0.0.5 = open relay)
8owps.dnsbl.net.au
8dialup.blacklist.jippg.org (union of all results)
7navisite.blackholes.us
7burst.blackholes.us
7hil.habeas.com
7dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
6blackholes.uceb.org (result 127.0.0.2 = open relay)
6dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
5blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
4dnsbl.ahbl.org (result 127.0.0.15 = open relay)
3pajo.blackholes.us
3dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
2ciberlynx.blackholes.us
2blackholes.uceb.org (result 127.0.0.6 = spam haven)
2dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
2blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
2blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
2bl.deadbeef.com
1blackholes.uceb.org (result 127.0.0.8 = spam source with fake sender)
1omrs.dnsbl.net.au
1owfs.dnsbl.net.au
1spamguard.leadmon.net (result 127.0.0.3 = spam source)
1no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)
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
40109(total number of IP addresses whose names were tested, including 391 at SDSC)
18977(union of all domain zones)
15137abuse.rfc-ignorant.org
8959rddn.dnsbl.net.au
8774whois.rfc-ignorant.org (union of all results)
6929whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
5161dynamic.rhs.mailpolice.com
1847whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1403webmail.rhs.mailpolice.com
781rhsbl.ahbl.org
657bl.deadbeef.com
484bulk.rhs.mailpolice.com
380adv.rhs.mailpolice.com
33postmaster.rfc-ignorant.org
25dsn.rfc-ignorant.org (zone not intended for this use)
4bogusmx.rfc-ignorant.org
4porn.rhs.mailpolice.com
2blackhole.securitysage.com
1fraud.rhs.mailpolice.com
1cart00ney.surriel.com

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

HitsDNS Zone
27945(total number of domains tested, including 325 at SDSC)
6350(union of all domain zones)
2411abuse.rfc-ignorant.org
1929whois.rfc-ignorant.org (union of all results)
1374whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1227postmaster.rfc-ignorant.org
1117webmail.rhs.mailpolice.com
908dsn.rfc-ignorant.org
881rhsbl.ahbl.org
587bogusmx.rfc-ignorant.org
555whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
458bulk.rhs.mailpolice.com
214blackhole.securitysage.com
175adv.rhs.mailpolice.com
166bl.deadbeef.com
84porn.rhs.mailpolice.com
49rddn.dnsbl.net.au (zone not intended for this use)
45rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
45rhsbl.sorbs.net (union of all results)
27dynamic.rhs.mailpolice.com
15ex.dnsbl.org
3cart00ney.surriel.com
1fraud.rhs.mailpolice.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 30 June 2005.