Blacklists Compared

16 April 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
29366(total number of IP addresses tested, including 431 at SDSC)
24466(union of most IP zones)
16254t1.dnsbl.net.au
15619blackholes.five-ten-sg.com (union of all results)
14857blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
12391sbl-xbl.spamhaus.org (union of all results)
11676dnsbl.sorbs.net (union of all results)
10902xbl.spamhaus.org (union of all results)
10077xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10076sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10067cbl.abuseat.org
8365cn-kr.blackholes.us (union of all results)
7550dnsbl.sorbs.net (result 127.0.0.10 = dialup)
7127no-more-funn.moensted.dk (union of all results)
6970unconfirmed.dsbl.org
6882list.dsbl.org
6876dsbl.dnsbl.net.au
6423rmst.dnsbl.net.au
5885dynablock.njabl.org
5356psbl.surriel.com
4923cn-kr.blackholes.us (result 127.0.0.3 = Korea)
4923korea.blackholes.us
4914korea.services.net
4863no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
4791sbl.csma.biz
4602combined-hib.dnsiplists.completewhois.com (union of all results)
4590combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
3561bl.spamcop.net
3442cn-kr.blackholes.us (result 127.0.0.2 = China)
3442china.blackholes.us
3316dnsbl.njabl.org (union of all results)
3039l2.spews.dnsbl.sorbs.net
2981blacklist.spambag.org
2654dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2651opm.blitzed.org
2650l1.spews.dnsbl.sorbs.net
2648sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2644xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2637bl.csma.biz
2514spews.dnsbl.net.au
2487dnsbl.ahbl.org (union of all results)
2243wpbl.dnsbl.net.au
2084sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
2083sbl.spamhaus.org
2037spamsources.fabel.dk
1920dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
1801dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1604dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1566ricn.dnsbl.net.au
1499xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1495sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1480spam.wytnij.to
1420dnsbl.regedit64.net
1213dnsbl.rangers.eu.org (union of all results)
1191dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1168dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1141dnsbl.antispam.or.id
1089no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1048dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
968bl.spamcannibal.org
890unsure.nether.net
877pdl.blackholes.us
776brazil.blackholes.us
707comcast.blackholes.us
684no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
627dnsbl.ahbl.org (result 127.0.0.4 = spam source)
540japan.blackholes.us
500probes.dnsbl.net.au
430blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
424dnsbl.njabl.org (result 127.0.0.3 = dialup)
421taiwan.blackholes.us
373russia.blackholes.us
369mci.blackholes.us
321ybl.megacity.org
320no-more-funn.moensted.dk (result 127.0.0.9 = misc)
275mexico.blackholes.us
259cw.blackholes.us
246blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
235level3.blackholes.us
216rr.blackholes.us
212mail-abuse.blacklist.jippg.org
211argentina.blackholes.us
203blackholes.intersil.net
201charter.blackholes.us
181no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
175tr.countries.nerd.dk
173turkey.blackholes.us
164query.bondedsender.org (not a blacklist!)
158interbusiness.blackholes.us
153dnsbl.njabl.org (result 127.0.0.2 = source or relay)
147qwest.blackholes.us
146ohps.dnsbl.net.au
128verio.blackholes.us
126dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
119hongkong.blackholes.us
117relays.ordb.org
110internap.blackholes.us
95dnsbl.njabl.org (result 127.0.0.4 = spam source)
94dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
92singapore.blackholes.us
88malaysia.blackholes.us
83above.blackholes.us
82flowgoaway.com
81multihop.dsbl.org
78thailand.blackholes.us
76yipes.blackholes.us
74cybercon.blackholes.us
72osps.dnsbl.net.au
70xo.blackholes.us
67wanadoo-fr.blackholes.us
58dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
57dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
48he.blackholes.us
39lauderdale.blackholes.us
38bellsouth.blackholes.us
35blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
33inflow.blackholes.us
33relays.nether.net
32osrs.dnsbl.net.au
27telstra.blackholes.us
27rogers.blackholes.us
26dnsbl.sorbs.net (result 127.0.0.5 = open relay)
26blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
24a2000.blackholes.us
23infolink.blackholes.us
23blackholes.uceb.org (union of all results)
22covad.blackholes.us
20rdts.dnsbl.net.au
19nigeria.blackholes.us
19eli.blackholes.us
18dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
17blackholes.uceb.org (result 127.0.0.3 = spam source)
16exemptions.ahbl.org (not a blacklist!)
15rackspace.blackholes.us
13blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
12dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
12combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
11affinity.blackholes.us
11blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
11dialup.blacklist.jippg.org (union of all results)
10navisite.blackholes.us
10epoch.blackholes.us
10burst.blackholes.us
9dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
9blackholes.brainerd.net
8swbell.blackholes.us
8satos.rbl.cluecentral.net
8spamguard.leadmon.net (union of all results)
7olm.blackholes.us
7broadwing.blackholes.us
7owps.dnsbl.net.au
7spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
7hil.habeas.com
6maxim.blackholes.us
6blackholes.uceb.org (result 127.0.0.2 = open relay)
5pajo.blackholes.us
4dnsbl.ahbl.org (result 127.0.0.15 = open relay)
3bl.deadbeef.com
2dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
2no-more-funn.moensted.dk (result 127.0.0.8 = open web form)
2no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)
1ciberlynx.blackholes.us
1dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1spamsites.dnsbl.net.au
1omrs.dnsbl.net.au
1owfs.dnsbl.net.au
1spamguard.leadmon.net (result 127.0.0.3 = spam source)
1relays.bl.kundenserver.de
1blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)
1ph.rbl.cluecentral.net
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
29366(total number of IP addresses whose names were tested, including 431 at SDSC)
12424(union of all domain zones)
9479abuse.rfc-ignorant.org
5032rddn.dnsbl.net.au
3250whois.rfc-ignorant.org (union of all results)
2661dynamic.rhs.mailpolice.com
2288whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
1552webmail.rhs.mailpolice.com
964whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
731rhsbl.ahbl.org
478bulk.rhs.mailpolice.com
358adv.rhs.mailpolice.com
250bl.deadbeef.com
18postmaster.rfc-ignorant.org
10dsn.rfc-ignorant.org (zone not intended for this use)
4blackhole.securitysage.com
4porn.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
20894(total number of domains tested, including 342 at SDSC)
5665(union of all domain zones)
2073whois.rfc-ignorant.org (union of all results)
1833abuse.rfc-ignorant.org
1708whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
908webmail.rhs.mailpolice.com
868postmaster.rfc-ignorant.org
803rhsbl.ahbl.org
683dsn.rfc-ignorant.org
454bulk.rhs.mailpolice.com
365whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
237blackhole.securitysage.com
233bogusmx.rfc-ignorant.org
202adv.rhs.mailpolice.com
107bl.deadbeef.com
103porn.rhs.mailpolice.com
42rddn.dnsbl.net.au (zone not intended for this use)
30rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
30rhsbl.sorbs.net (union of all results)
18dynamic.rhs.mailpolice.com
14ex.dnsbl.org
1cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 25 April 2005.