Blacklists Compared

23 June 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
162478(total number of IP addresses tested, including 614 at SDSC)
121066zen.spamhaus.org (union of all results)
120051t1.dnsbl.net.au
90227l2.apews.dnsbl.uceprotect.net
89702dnsbl.sorbs.net (union of all results)
89451dynablock.njabl.org
89451pbl.spamhaus.org (union of all results)
85305sbl-xbl.spamhaus.org (union of all results)
84736xbl.spamhaus.org (union of all results)
84278cbl.abuseat.org
84233zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
84233sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
84230xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
81514no-more-funn.moensted.dk (union of all results)
81452zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
81452pbl.spamhaus.org (result 127.0.0.11 = Spamhaus entry)
81310dnsbl.tqmcube.com (union of all results)
72839dnsbl.sorbs.net (result 127.0.0.10 = dialup)
66520blackholes.five-ten-sg.com (union of all results)
62919psbl.surriel.com
61252blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
58172no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
52292dnsbl.tqmcube.com (result 127.0.0.2 = dialup)
47222dnsbl-2.uceprotect.net
42998dnsbl-1.uceprotect.net
40885sbl.csma.biz
31775bl.spamcop.net
28391dnsbl-3.uceprotect.net
22669dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
22610bl.csma.biz
20196ubl.unsubscore.com
19774dnsbl.tqmcube.com (result 127.0.0.3 = spam source)
17388db.wpbl.info
17284no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
15114unconfirmed.dsbl.org
15000list.dsbl.org
14993dsbl.dnsbl.net.au
13559cn-kr.blackholes.us (result 127.0.0.2 = China)
13559cn-kr.blackholes.us (union of all results)
11738dnsbl.tqmcube.com (result 127.0.0.5 = China)
8833mail-abuse.blacklist.jippg.org
8820tr.countries.nerd.dk
8781china.blackholes.us
8580turkey.blackholes.us
8164zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
8164pbl.spamhaus.org (result 127.0.0.10 = ISP contributed)
7020korea.services.net
6818dnsbl.tqmcube.com (result 127.0.0.4 = South Korea)
5654no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
4900combined-hib.dnsiplists.completewhois.com (union of all results)
4888combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4715dnsbl.sorbs.net (result 127.0.0.6 = spam source)
4668korea.blackholes.us
4433spamsources.fabel.dk
4196dnsbl.njabl.org (union of all results)
4091blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
3936dnsbl.njabl.org (result 127.0.0.9 = open proxy)
3386bl.spamcannibal.org
3329list.dnswl.org (not a blacklist!)
2987russia.blackholes.us
2857brazil.blackholes.us
2741dnsbl.ahbl.org (union of all results)
2689rmst.dnsbl.net.au
2603dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1624probes.dnsbl.net.au
1525argentina.blackholes.us
1508zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1508xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1508thailand.blackholes.us
1508sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1459japan.blackholes.us
1362taiwan.blackholes.us
1036blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
795malaysia.blackholes.us
701zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
701sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
701sbl.spamhaus.org
647mexico.blackholes.us
522dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
445dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
434hongkong.blackholes.us
380blackholes.uceb.org (union of all results)
339blackholes.uceb.org (result 127.0.0.6 = spam haven)
293no-more-funn.moensted.dk (result 127.0.0.9 = misc)
282no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
232singapore.blackholes.us
209work.drbl.croco.net
166blackholes.uceb.org (result 127.0.0.3 = spam source)
166query.bondedsender.org (not a blacklist!)
160iadb2.isipp.com (not a blacklist!)
158iadb.isipp.com (not a blacklist!)
144bl.deadbeef.com
134dnsbl.njabl.org (result 127.0.0.4 = spam source)
128accredit.habeas.com (not a blacklist!)
126dnsbl.njabl.org (result 127.0.0.2 = open relay)
124dnsbl.antispam.or.id
102spam.wytnij.to
91dnsbl.ahbl.org (result 127.0.0.4 = spam source)
84blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
79tor.dnsbl.sectoor.de (union of all results)
78tor.dnsbl.sectoor.de (result 127.0.0.2 = /24 contains a Tor server)
75multihop.dsbl.org
60relays.nether.net
51blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
32dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
23ohps.dnsbl.net.au
21exemptions.ahbl.org (not a blacklist!)
21dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
20blackholes.uceb.org (result 127.0.0.5 = dialup)
20multi.surbl.org
15nigeria.blackholes.us
12rdts.dnsbl.net.au
12combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
11dnsbl.ahbl.org (result 127.0.0.15 = open relay)
10blackholes.brainerd.net
9dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
9spamguard.leadmon.net (union of all results)
8blackholes.uceb.org (result 127.0.0.2 = open relay)
8osps.dnsbl.net.au
8spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
6dnsbl.ahbl.org (result 127.0.0.20 = blog/wiki/comment spam source)
5blackholes.uceb.org (result 127.0.0.9 = uncooperative company)
4blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
3owps.dnsbl.net.au
2osrs.dnsbl.net.au
2omrs.dnsbl.net.au
2blackholes.five-ten-sg.com (result 127.0.0.11 = TCPA violator)
2dnsbl.ahbl.org (result 127.0.0.10 = shoot on sight spammer)
1tor.dnsbl.sectoor.de (result 127.0.0.1 = Tor server)
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1spamsites.dnsbl.net.au
1spamguard.leadmon.net (result 127.0.0.3 = spam source)
1no-more-funn.moensted.dk (result 127.0.0.8 = open web form)
1no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)


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

HitsDNS Zone
162478(total number of IP addresses whose names were tested, including 614 at SDSC)
106522(union of all domain zones)
96073l1.apews.rhsbl.uceprotect.net
76209rddn.dnsbl.net.au
70296abuse.rfc-ignorant.org
47994dynamic.rhs.mailpolice.com
37418whois.rfc-ignorant.org (union of all results)
20831whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
16587whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
8769webmail.rhs.mailpolice.com
704multi.surbl.org
689multi.uribl.com (union of all results)
688multi.uribl.com (result 127.0.0.2 = spam resource)
483adv.rhs.mailpolice.com
127rhsbl.ahbl.org
97postmaster.rfc-ignorant.org
97bulk.rhs.mailpolice.com
78bogusmx.rfc-ignorant.org
72dsn.rfc-ignorant.org (zone not intended for this use)
58rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
58rhsbl.sorbs.net (union of all results)
26porn.rhs.mailpolice.com
6bl.deadbeef.com
3blackhole.securitysage.com
2ex.dnsbl.org
1multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
1fraud.rhs.mailpolice.com


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

HitsDNS Zone
84199(total number of domains tested, including 622 at SDSC)
16447(union of all domain zones)
5890whois.rfc-ignorant.org (union of all results)
5277whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
4024abuse.rfc-ignorant.org
2674multi.surbl.org
2343multi.uribl.com (union of all results)
2291multi.uribl.com (result 127.0.0.2 = spam resource)
2242l1.apews.rhsbl.uceprotect.net
1998postmaster.rfc-ignorant.org
1550webmail.rhs.mailpolice.com
1311bogusmx.rfc-ignorant.org
919dsn.rfc-ignorant.org
613whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
303porn.rhs.mailpolice.com
243rhsbl.ahbl.org
220bulk.rhs.mailpolice.com
183adv.rhs.mailpolice.com
174blackhole.securitysage.com
104rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
104rhsbl.sorbs.net (union of all results)
48multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
47rddn.dnsbl.net.au (zone not intended for this use)
17dynamic.rhs.mailpolice.com
14ex.dnsbl.org
4multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
3bl.deadbeef.com
1cart00ney.surriel.com


This document was last updated by Jeff Makey <jeff@sdsc.edu> on 29 June 2007.