Blacklists Compared

12 May 2007

[ 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, query.bondedsender.org, list.dnswl.org, accredit.habeas.com, iadb.isipp.com, and iadb2.isipp.com zones because they are not blacklists.

HitsDNS Zone
109915(total number of IP addresses tested, including 493 at SDSC)
101903(union of most IP zones)
80245zen.spamhaus.org (union of all results)
79498t1.dnsbl.net.au
59541dnsbl.sorbs.net (union of all results)
57698no-more-funn.moensted.dk (union of all results)
56738sbl-xbl.spamhaus.org (union of all results)
56154pbl.spamhaus.org (union of all results)
56054dynablock.njabl.org
56038xbl.spamhaus.org (union of all results)
55667dnsbl.tqmcube.com (union of all results)
55650cbl.abuseat.org
55624xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
55622zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
55622sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
52088zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
52088pbl.spamhaus.org (result 127.0.0.11 = Spamhaus entry)
48319blackholes.five-ten-sg.com (union of all results)
44170dnsbl.sorbs.net (result 127.0.0.10 = dialup)
42964blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
39253psbl.surriel.com
38084no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
37968dnsbl-2.uceprotect.net
35697dnsbl-1.uceprotect.net
32834dnsbl.tqmcube.com (result 127.0.0.2 = dialup)
21258dnsbl-3.uceprotect.net
19918dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
17159bl.spamcop.net
14924db.wpbl.info
14519no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
14327ubl.unsubscore.com
13967dnsbl.tqmcube.com (result 127.0.0.3 = spam source)
12832cn-kr.blackholes.us (result 127.0.0.2 = China)
12832cn-kr.blackholes.us (union of all results)
10563unconfirmed.dsbl.org
10476list.dsbl.org
10467dsbl.dnsbl.net.au
9395dnsbl.tqmcube.com (result 127.0.0.5 = China)
8064china.blackholes.us
6368korea.services.net
6136dnsbl.tqmcube.com (result 127.0.0.4 = South Korea)
6021ix.dnsbl.manitu.net
5505mail-abuse.blacklist.jippg.org
5165blacklist.spambag.org
4839no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
4810l2.apews.dnsbl.uceprotect.net
4768korea.blackholes.us
4643combined-hib.dnsiplists.completewhois.com (union of all results)
4625combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4132blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
4117tr.countries.nerd.dk
4105turkey.blackholes.us
4069zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
4069pbl.spamhaus.org (result 127.0.0.10 = ISP contributed)
3292rmst.dnsbl.net.au
3275dnsbl.sorbs.net (result 127.0.0.6 = spam source)
3191dnsbl.njabl.org (union of all results)
2963dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2804russia.blackholes.us
2800brazil.blackholes.us
2569bl.spamcannibal.org
2170dnsbl.ahbl.org (union of all results)
2145list.dnswl.org (not a blacklist!)
2026dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1878spamsources.fabel.dk
1398zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1398xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1398sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1114japan.blackholes.us
1060blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
1030thailand.blackholes.us
972taiwan.blackholes.us
867probes.dnsbl.net.au
847zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
847sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
847sbl.spamhaus.org
723malaysia.blackholes.us
696argentina.blackholes.us
511dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
399hongkong.blackholes.us
378dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
376mexico.blackholes.us
329blackholes.uceb.org (union of all results)
299blackholes.uceb.org (result 127.0.0.6 = spam haven)
254singapore.blackholes.us
222no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
215no-more-funn.moensted.dk (result 127.0.0.9 = misc)
189sbl.csma.biz
165work.drbl.croco.net
161blackholes.uceb.org (result 127.0.0.3 = spam source)
161query.bondedsender.org (not a blacklist!)
135iadb2.isipp.com (not a blacklist!)
134iadb.isipp.com (not a blacklist!)
125accredit.habeas.com (not a blacklist!)
121dnsbl.njabl.org (result 127.0.0.4 = spam source)
119bl.deadbeef.com
107dnsbl.njabl.org (result 127.0.0.2 = open relay)
105blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
88dnsbl.ahbl.org (result 127.0.0.4 = spam source)
64spam.wytnij.to
62multihop.dsbl.org
44ohps.dnsbl.net.au
44blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
39dnsbl.antispam.or.id
37dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
36dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
33tor.dnsbl.sectoor.de (result 127.0.0.2 = /24 contains a Tor server)
33tor.dnsbl.sectoor.de (union of all results)
23multi.surbl.org
18combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
17osps.dnsbl.net.au
16nigeria.blackholes.us
16relays.nether.net
15blackholes.uceb.org (result 127.0.0.5 = dialup)
13spamguard.leadmon.net (union of all results)
11spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
11dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
10exemptions.ahbl.org (not a blacklist!)
9blackholes.brainerd.net
7dnsbl.ahbl.org (result 127.0.0.15 = open relay)
6rdts.dnsbl.net.au
6blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
5blackholes.uceb.org (result 127.0.0.2 = open relay)
5osrs.dnsbl.net.au
3owps.dnsbl.net.au
2multi.uribl.com (result 127.0.0.2 = spam resource)
2dnsbl.sorbs.net (result 127.0.0.5 = open relay)
2spamguard.leadmon.net (result 127.0.0.3 = spam source)
2blackholes.five-ten-sg.com (result 127.0.0.11 = TCPA violator)
2blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
2blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
2blackholes.five-ten-sg.com (result 127.0.0.13 = challenge-response source)
2dnsbl.ahbl.org (result 127.0.0.20 = blog/wiki/comment spam source)
2multi.uribl.com (union of all results)
1blackholes.uceb.org (result 127.0.0.8 = spam source with fake sender)
1omrs.dnsbl.net.au
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)

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

HitsDNS Zone
109915(total number of IP addresses whose names were tested, including 493 at SDSC)
64350(union of all domain zones)
49814l1.apews.rhsbl.uceprotect.net
42998rddn.dnsbl.net.au
42691abuse.rfc-ignorant.org
30437dynamic.rhs.mailpolice.com
22529whois.rfc-ignorant.org (union of all results)
11817whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
10712whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
5578webmail.rhs.mailpolice.com
699multi.uribl.com (union of all results)
696multi.uribl.com (result 127.0.0.2 = spam resource)
684multi.surbl.org
533adv.rhs.mailpolice.com
463postmaster.rfc-ignorant.org
122rhsbl.ahbl.org
90bulk.rhs.mailpolice.com
71bogusmx.rfc-ignorant.org
66dsn.rfc-ignorant.org (zone not intended for this use)
27rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
27rhsbl.sorbs.net (union of all results)
10porn.rhs.mailpolice.com
6bl.deadbeef.com
3blackhole.securitysage.com
2multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
1multi.uribl.com (result 127.0.0.4 = opt-out spam resource)

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

HitsDNS Zone
58780(total number of domains tested, including 484 at SDSC)
12816(union of all domain zones)
4450whois.rfc-ignorant.org (union of all results)
3947whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
3225abuse.rfc-ignorant.org
2607multi.surbl.org
2437multi.uribl.com (union of all results)
2390multi.uribl.com (result 127.0.0.2 = spam resource)
1548postmaster.rfc-ignorant.org
1402webmail.rhs.mailpolice.com
957l1.apews.rhsbl.uceprotect.net
950bogusmx.rfc-ignorant.org
757dsn.rfc-ignorant.org
503whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
236rhsbl.ahbl.org
217porn.rhs.mailpolice.com
171adv.rhs.mailpolice.com
158bulk.rhs.mailpolice.com
135blackhole.securitysage.com
84rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
84rhsbl.sorbs.net (union of all results)
45rddn.dnsbl.net.au (zone not intended for this use)
44multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
16ex.dnsbl.org
14dynamic.rhs.mailpolice.com
3multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
2bl.deadbeef.com
1fraud.rhs.mailpolice.com
1cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 18 May 2007.