Blacklists Compared

26 February 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
40746(total number of IP addresses tested, including 422 at SDSC)
35420(union of most IP zones)
28980t1.dnsbl.net.au
25887blackholes.five-ten-sg.com (union of all results)
25132blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
18931dnsbl.sorbs.net (union of all results)
16539cn-kr.blackholes.us (union of all results)
14940no-more-funn.moensted.dk (union of all results)
13702sbl-xbl.spamhaus.org (union of all results)
13067dnsbl.sorbs.net (result 127.0.0.10 = dialup)
12744cn-kr.blackholes.us (result 127.0.0.3 = Korea)
12744korea.blackholes.us
12736korea.services.net
12232xbl.spamhaus.org (union of all results)
11394no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
11053cbl.abuseat.org
11050sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
11046xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10974unconfirmed.dsbl.org
10893list.dsbl.org
10891dsbl.dnsbl.net.au
10883dynablock.njabl.org
10210rmst.dnsbl.net.au
9274combined-hib.dnsiplists.completewhois.com (union of all results)
9186combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
7691sbl.csma.biz
5643psbl.surriel.com
5453ricn.dnsbl.net.au
4712dnsbl.njabl.org (union of all results)
4425bl.csma.biz
4132bl.spamcop.net
3815dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
3795cn-kr.blackholes.us (result 127.0.0.2 = China)
3795china.blackholes.us
3756dnsbl.njabl.org (result 127.0.0.9 = open proxy)
3645wpbl.dnsbl.net.au
3211blacklist.spambag.org
3140sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3138xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3043opm.blitzed.org
2838dnsbl.ahbl.org (union of all results)
2795l2.spews.dnsbl.sorbs.net
2447spews.dnsbl.net.au
2372l1.spews.dnsbl.sorbs.net
2288dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
2179spam.wytnij.to
2175dnsbl.sorbs.net (result 127.0.0.6 = spam source)
2051pdl.blackholes.us
1913dnsbl.regedit64.net
1839dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1755sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1755sbl.spamhaus.org
1555no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1437dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1314no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
1260dnsbl.rangers.eu.org (union of all results)
1059dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
1010bl.spamcannibal.org
922dnsbl.antispam.or.id
894brazil.blackholes.us
893unsure.nether.net
800dnsbl.njabl.org (result 127.0.0.3 = dialup)
660japan.blackholes.us
544level3.blackholes.us
532probes.dnsbl.net.au
529comcast.blackholes.us
513no-more-funn.moensted.dk (result 127.0.0.9 = misc)
512dnsbl.ahbl.org (result 127.0.0.4 = spam source)
476ybl.megacity.org
473spamsources.fabel.dk
435taiwan.blackholes.us
410blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
350mexico.blackholes.us
319rr.blackholes.us
288argentina.blackholes.us
274charter.blackholes.us
268russia.blackholes.us
255cw.blackholes.us
251mail-abuse.blacklist.jippg.org
248interbusiness.blackholes.us
235blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
231hongkong.blackholes.us
213blackholes.intersil.net
184no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
172tr.countries.nerd.dk
170turkey.blackholes.us
166qwest.blackholes.us
152dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
150query.bondedsender.org (not a blacklist!)
141ohps.dnsbl.net.au
124above.blackholes.us
120dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
119verio.blackholes.us
110thailand.blackholes.us
105wanadoo-fr.blackholes.us
100osps.dnsbl.net.au
96singapore.blackholes.us
95flowgoaway.com
93dnsbl.njabl.org (result 127.0.0.4 = spam source)
88combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
87internap.blackholes.us
86xo.blackholes.us
85dnsbl.njabl.org (result 127.0.0.2 = source or relay)
84malaysia.blackholes.us
81relays.ordb.org
69multihop.dsbl.org
67nigeria.blackholes.us
65blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
61dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
59cybercon.blackholes.us
54bellsouth.blackholes.us
40ph.rbl.cluecentral.net
39covad.blackholes.us
38telstra.blackholes.us
36dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
36blackholes.uceb.org (union of all results)
35he.blackholes.us
35osrs.dnsbl.net.au
32rogers.blackholes.us
30inflow.blackholes.us
29dialup.blacklist.jippg.org (union of all results)
28blackholes.uceb.org (result 127.0.0.3 = spam source)
28rdts.dnsbl.net.au
27eli.blackholes.us
27dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
24relays.nether.net
23dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
22a2000.blackholes.us
22blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
19dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
18exemptions.ahbl.org (not a blacklist!)
17yipes.blackholes.us
17rackspace.blackholes.us
16infolink.blackholes.us
16spamguard.leadmon.net (union of all results)
15burst.blackholes.us
15dnsbl.sorbs.net (result 127.0.0.5 = open relay)
15blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
15dnsbl.ahbl.org (result 127.0.0.15 = open relay)
14maxim.blackholes.us
14broadwing.blackholes.us
14spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
10affinity.blackholes.us
10dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
9olm.blackholes.us
9epoch.blackholes.us
8blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
7swbell.blackholes.us
7blackholes.uceb.org (result 127.0.0.2 = open relay)
7satos.rbl.cluecentral.net
6hil.habeas.com
5navisite.blackholes.us
5blackholes.brainerd.net
4bl.deadbeef.com
3pajo.blackholes.us
3ciberlynx.blackholes.us
3owps.dnsbl.net.au
3no-more-funn.moensted.dk (result 127.0.0.5 = relay output)
2blackholes.uceb.org (result 127.0.0.8 = spam source with fake sender)
2spamguard.leadmon.net (result 127.0.0.3 = spam source)
2dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
2dnsbl.ahbl.org (result 127.0.0.14 = denial-of-service attacker)
1media3.blackholes.us
1dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1omrs.dnsbl.net.au
1owfs.dnsbl.net.au
1no-more-funn.moensted.dk (result 127.0.0.8 = open web form)

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
40746(total number of IP addresses whose names were tested, including 422 at SDSC)
14362(union of all domain zones)
10644abuse.rfc-ignorant.org
7439rddn.dnsbl.net.au
3922whois.rfc-ignorant.org (union of all results)
3232dynamic.rhs.mailpolice.com
2785whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
1495webmail.rhs.mailpolice.com
1139whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
570bulk.rhs.mailpolice.com
415rhsbl.ahbl.org
363adv.rhs.mailpolice.com
238bl.deadbeef.com
32dsn.rfc-ignorant.org (zone not intended for this use)
28postmaster.rfc-ignorant.org
13porn.rhs.mailpolice.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
22584(total number of domains tested, including 302 at SDSC)
6390(union of all domain zones)
2336whois.rfc-ignorant.org (union of all results)
2051abuse.rfc-ignorant.org
1933whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1123webmail.rhs.mailpolice.com
919postmaster.rfc-ignorant.org
881dsn.rfc-ignorant.org
709bulk.rhs.mailpolice.com
669rhsbl.ahbl.org
403whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
239bogusmx.rfc-ignorant.org
212blackhole.securitysage.com
193adv.rhs.mailpolice.com
143bl.deadbeef.com
98porn.rhs.mailpolice.com
60rddn.dnsbl.net.au (zone not intended for this use)
46rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
46rhsbl.sorbs.net (union of all results)
33dynamic.rhs.mailpolice.com
15ex.dnsbl.org
2cart00ney.surriel.com
1fraud.rhs.mailpolice.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 12 March 2005.