Blacklists Compared

14 April 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
122775(total number of IP addresses tested, including 488 at SDSC)
114432(union of most IP zones)
93499zen.spamhaus.org (union of all results)
93496t1.dnsbl.net.au
70136dnsbl.sorbs.net (union of all results)
69954sbl-xbl.spamhaus.org (union of all results)
69430xbl.spamhaus.org (union of all results)
69118cbl.abuseat.org
69088zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
69084xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
69080sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
66053no-more-funn.moensted.dk (union of all results)
64259pbl.spamhaus.org (union of all results)
64256dynablock.njabl.org
60686dnsbl.tqmcube.com (union of all results)
58782zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
58782pbl.spamhaus.org (result 127.0.0.11 = Spamhaus entry)
55078blackholes.five-ten-sg.com (union of all results)
52827dnsbl.sorbs.net (result 127.0.0.10 = dialup)
50141blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
45156no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
42681psbl.surriel.com
40390dnsbl-1.uceprotect.net
38801dnsbl.tqmcube.com (result 127.0.0.2 = dialup)
32012dnsbl-2.uceprotect.net
24487dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
19541bl.spamcop.net
17702db.wpbl.info
15213dnsbl-3.uceprotect.net
15102dnsbl.tqmcube.com (result 127.0.0.3 = spam source)
13310no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
12359unconfirmed.dsbl.org
12273list.dsbl.org
12267dsbl.dnsbl.net.au
10844cn-kr.blackholes.us (result 127.0.0.2 = China)
10844cn-kr.blackholes.us (union of all results)
9897unsure.nether.net
8869dnsbl.tqmcube.com (result 127.0.0.5 = China)
8568ubl.unsubscore.com
8011ix.dnsbl.manitu.net
7410no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
7242china.blackholes.us
7205mail-abuse.blacklist.jippg.org
5482zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
5482pbl.spamhaus.org (result 127.0.0.10 = ISP contributed)
5440blacklist.spambag.org
5097korea.services.net
5095dnsbl.tqmcube.com (result 127.0.0.4 = South Korea)
4998tr.countries.nerd.dk
4988combined-hib.dnsiplists.completewhois.com (union of all results)
4975combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4615turkey.blackholes.us
3792blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
3593dnsbl.njabl.org (union of all results)
3589dnsbl.sorbs.net (result 127.0.0.6 = spam source)
3586korea.blackholes.us
3520rmst.dnsbl.net.au
3259dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2439bl.spamcannibal.org
2304brazil.blackholes.us
2233dnsbl.ahbl.org (union of all results)
2139spamsources.fabel.dk
2129dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1943russia.blackholes.us
1579zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1579xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1579sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1555list.dnswl.org (not a blacklist!)
1468sbl.csma.biz
1244taiwan.blackholes.us
1108probes.dnsbl.net.au
1072japan.blackholes.us
1007blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
699zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
699sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
699sbl.spamhaus.org
695thailand.blackholes.us
677malaysia.blackholes.us
575dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
572argentina.blackholes.us
458dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
408mexico.blackholes.us
386blackholes.uceb.org (union of all results)
356blackholes.uceb.org (result 127.0.0.6 = spam haven)
286no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
219singapore.blackholes.us
217hongkong.blackholes.us
217l2.apews.dnsbl.uceprotect.net
190bl.csma.biz
174no-more-funn.moensted.dk (result 127.0.0.9 = misc)
168dnsbl.njabl.org (result 127.0.0.4 = spam source)
165dnsbl.njabl.org (result 127.0.0.2 = open relay)
164blackholes.uceb.org (result 127.0.0.3 = spam source)
158work.drbl.croco.net
150query.bondedsender.org (not a blacklist!)
121accredit.habeas.com (not a blacklist!)
117iadb2.isipp.com (not a blacklist!)
112iadb.isipp.com (not a blacklist!)
90bl.deadbeef.com
85flowgoaway.com
80blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
71spam.wytnij.to
67multihop.dsbl.org
56dnsbl.ahbl.org (result 127.0.0.4 = spam source)
51blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
41dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
35tor.dnsbl.sectoor.de (result 127.0.0.2 = /24 contains a Tor server)
35tor.dnsbl.sectoor.de (union of all results)
30dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
26ohps.dnsbl.net.au
20osps.dnsbl.net.au
20relays.nether.net
17blackholes.uceb.org (result 127.0.0.5 = dialup)
15multi.surbl.org
13nigeria.blackholes.us
13dnsbl.antispam.or.id
13combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
13dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
11exemptions.ahbl.org (not a blacklist!)
10rdts.dnsbl.net.au
9dnsbl.ahbl.org (result 127.0.0.15 = open relay)
9spamguard.leadmon.net (union of all results)
7blackholes.uceb.org (result 127.0.0.2 = open relay)
7osrs.dnsbl.net.au
7blackholes.brainerd.net
6multi.uribl.com (result 127.0.0.2 = spam resource)
6spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
6multi.uribl.com (union of all results)
5owps.dnsbl.net.au
5blackholes.five-ten-sg.com (result 127.0.0.11 = TCPA violator)
3spamguard.leadmon.net (result 127.0.0.3 = spam source)
2blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1dnsbl.sorbs.net (result 127.0.0.5 = open relay)
1omrs.dnsbl.net.au
1dnsbl.njabl.org (result 127.0.0.8 = open formmail.cgi)
1no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)
1dnsbl.ahbl.org (result 127.0.0.14 = denial-of-service attacker)


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

HitsDNS Zone
122775(total number of IP addresses whose names were tested, including 488 at SDSC)
71793(union of all domain zones)
50646rddn.dnsbl.net.au
47578abuse.rfc-ignorant.org
44865l1.apews.rhsbl.uceprotect.net
34699dynamic.rhs.mailpolice.com
24128whois.rfc-ignorant.org (union of all results)
13282whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
10846whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
3990webmail.rhs.mailpolice.com
504multi.surbl.org
503adv.rhs.mailpolice.com
487postmaster.rfc-ignorant.org
388multi.uribl.com (union of all results)
386multi.uribl.com (result 127.0.0.2 = spam resource)
130bl.deadbeef.com
129rhsbl.ahbl.org
79bulk.rhs.mailpolice.com
76bogusmx.rfc-ignorant.org
71dsn.rfc-ignorant.org (zone not intended for this use)
69rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
69rhsbl.sorbs.net (union of all results)
15porn.rhs.mailpolice.com
2multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
2blackhole.securitysage.com


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

HitsDNS Zone
60729(total number of domains tested, including 469 at SDSC)
12750(union of all domain zones)
4703whois.rfc-ignorant.org (union of all results)
4163whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
3616abuse.rfc-ignorant.org
2036multi.surbl.org
1684postmaster.rfc-ignorant.org
1652multi.uribl.com (union of all results)
1599multi.uribl.com (result 127.0.0.2 = spam resource)
1474webmail.rhs.mailpolice.com
920bogusmx.rfc-ignorant.org
879dsn.rfc-ignorant.org
540whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
384l1.apews.rhsbl.uceprotect.net
254rhsbl.ahbl.org
212porn.rhs.mailpolice.com
182adv.rhs.mailpolice.com
175bulk.rhs.mailpolice.com
142blackhole.securitysage.com
81rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
81rhsbl.sorbs.net (union of all results)
48multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
44rddn.dnsbl.net.au (zone not intended for this use)
14ex.dnsbl.org
13dynamic.rhs.mailpolice.com
5multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
3bl.deadbeef.com
1fraud.rhs.mailpolice.com
1cart00ney.surriel.com


This document was last updated by Jeff Makey <jeff@sdsc.edu> on 19 April 2007.