Blacklists Compared

7 May 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
36083(total number of IP addresses tested, including 408 at SDSC)
30575(union of most IP zones)
20901t1.dnsbl.net.au
15308sbl-xbl.spamhaus.org (union of all results)
14956dnsbl.sorbs.net (union of all results)
13661xbl.spamhaus.org (union of all results)
12374cbl.abuseat.org
12371sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
12369xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
11004blackholes.five-ten-sg.com (union of all results)
10689cn-kr.blackholes.us (union of all results)
10571dnsbl.sorbs.net (result 127.0.0.10 = dialup)
10565blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
9834no-more-funn.moensted.dk (union of all results)
9626unconfirmed.dsbl.org
9548list.dsbl.org
9544dsbl.dnsbl.net.au
8370dynablock.njabl.org
8214rmst.dnsbl.net.au
6503sbl.csma.biz
6281cn-kr.blackholes.us (result 127.0.0.3 = Korea)
6281korea.blackholes.us
6253korea.services.net
6233psbl.surriel.com
5879no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
5416combined-hib.dnsiplists.completewhois.com (union of all results)
5400combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4799bl.spamcop.net
4408cn-kr.blackholes.us (result 127.0.0.2 = China)
4408china.blackholes.us
4071blacklist.spambag.org
4071bl.csma.biz
4011dnsbl.njabl.org (union of all results)
3730l2.spews.dnsbl.sorbs.net
3668dnsbl.ahbl.org (union of all results)
3371l1.spews.dnsbl.sorbs.net
3357wpbl.dnsbl.net.au
3303dnsbl.njabl.org (result 127.0.0.9 = open proxy)
3243xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3242sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
3229spews.dnsbl.net.au
3210opm.blitzed.org
3042dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
2444dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
2410sbl.spamhaus.org
2409sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
2213ricn.dnsbl.net.au
2104sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
2103xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
2042spam.wytnij.to
1842spamsources.fabel.dk
1703dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1627dnsbl.rangers.eu.org (union of all results)
1616no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1570dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1519dnsbl.antispam.or.id
1443dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
1420comcast.blackholes.us
1416dnsbl.regedit64.net
1354dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1126unsure.nether.net
1118no-more-funn.moensted.dk (result 127.0.0.9 = misc)
1056brazil.blackholes.us
1047no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
1019pdl.blackholes.us
1019bl.spamcannibal.org
823probes.dnsbl.net.au
599dnsbl.ahbl.org (result 127.0.0.4 = spam source)
583japan.blackholes.us
518dnsbl.njabl.org (result 127.0.0.3 = dialup)
436taiwan.blackholes.us
428mci.blackholes.us
344rr.blackholes.us
324charter.blackholes.us
293argentina.blackholes.us
273blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
263russia.blackholes.us
253cw.blackholes.us
249mail-abuse.blacklist.jippg.org
246mexico.blackholes.us
235ybl.megacity.org
209level3.blackholes.us
196blackholes.intersil.net
186no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
175interbusiness.blackholes.us
175tr.countries.nerd.dk
175query.bondedsender.org (not a blacklist!)
172turkey.blackholes.us
151qwest.blackholes.us
141verio.blackholes.us
132ohps.dnsbl.net.au
125internap.blackholes.us
122dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
119wanadoo-fr.blackholes.us
115thailand.blackholes.us
115dnsbl.njabl.org (result 127.0.0.2 = open relay)
113dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
111hongkong.blackholes.us
104blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
104dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
97relays.ordb.org
92flowgoaway.com
85singapore.blackholes.us
84dnsbl.njabl.org (result 127.0.0.4 = spam source)
82malaysia.blackholes.us
80multihop.dsbl.org
79xo.blackholes.us
75osps.dnsbl.net.au
67cybercon.blackholes.us
64rogers.blackholes.us
57dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
54above.blackholes.us
51bellsouth.blackholes.us
48telstra.blackholes.us
43a2000.blackholes.us
37he.blackholes.us
34lauderdale.blackholes.us
34inflow.blackholes.us
33infolink.blackholes.us
33covad.blackholes.us
33osrs.dnsbl.net.au
31eli.blackholes.us
29relays.nether.net
26dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
19yipes.blackholes.us
19blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
19exemptions.ahbl.org (not a blacklist!)
19blackholes.uceb.org (union of all results)
18combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
16dnsbl.sorbs.net (result 127.0.0.5 = open relay)
16blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
15blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
14rackspace.blackholes.us
14rdts.dnsbl.net.au
13epoch.blackholes.us
13affinity.blackholes.us
13blackholes.uceb.org (result 127.0.0.3 = spam source)
13dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
12swbell.blackholes.us
11spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
11spamguard.leadmon.net (union of all results)
10blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
9broadwing.blackholes.us
9hil.habeas.com
8nigeria.blackholes.us
8blackholes.brainerd.net
7maxim.blackholes.us
6burst.blackholes.us
6blackholes.uceb.org (result 127.0.0.2 = open relay)
6dialup.blacklist.jippg.org (union of all results)
5olm.blackholes.us
5navisite.blackholes.us
5bl.deadbeef.com
3pajo.blackholes.us
3owps.dnsbl.net.au
3dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
3dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
2media3.blackholes.us
2dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
2no-more-funn.moensted.dk (result 127.0.0.5 = relay output)
2blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)
2dnsbl.ahbl.org (result 127.0.0.15 = open relay)
1spamsites.dnsbl.net.au
1omrs.dnsbl.net.au
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)

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
36083(total number of IP addresses whose names were tested, including 408 at SDSC)
15967(union of all domain zones)
12298abuse.rfc-ignorant.org
7265rddn.dnsbl.net.au
4203whois.rfc-ignorant.org (union of all results)
3450dynamic.rhs.mailpolice.com
2865whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
1439webmail.rhs.mailpolice.com
1340whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
516bulk.rhs.mailpolice.com
470rhsbl.ahbl.org
338adv.rhs.mailpolice.com
241bl.deadbeef.com
23postmaster.rfc-ignorant.org
7dsn.rfc-ignorant.org (zone not intended for this use)
4porn.rhs.mailpolice.com
3blackhole.securitysage.com
2bogusmx.rfc-ignorant.org

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

HitsDNS Zone
23943(total number of domains tested, including 327 at SDSC)
6333(union of all domain zones)
2433whois.rfc-ignorant.org (union of all results)
2017whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
2005abuse.rfc-ignorant.org
957webmail.rhs.mailpolice.com
936postmaster.rfc-ignorant.org
824rhsbl.ahbl.org
701dsn.rfc-ignorant.org
458bulk.rhs.mailpolice.com
416whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
352bogusmx.rfc-ignorant.org
196adv.rhs.mailpolice.com
195blackhole.securitysage.com
145bl.deadbeef.com
68porn.rhs.mailpolice.com
36rddn.dnsbl.net.au (zone not intended for this use)
29rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
29rhsbl.sorbs.net (union of all results)
16ex.dnsbl.org
10dynamic.rhs.mailpolice.com
2cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 18 May 2005.