Blacklists Compared

4 June 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
36070(total number of IP addresses tested, including 394 at SDSC)
30685(union of most IP zones)
20324t1.dnsbl.net.au
15281dnsbl.sorbs.net (union of all results)
13219sbl-xbl.spamhaus.org (union of all results)
12009xbl.spamhaus.org (union of all results)
10835dnsbl.sorbs.net (result 127.0.0.10 = dialup)
10757cbl.abuseat.org
10755xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10746sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10198cn-kr.blackholes.us (union of all results)
9115rmst.dnsbl.net.au
8592dynablock.njabl.org
8202list.dsbl.org
8200dsbl.dnsbl.net.au
8157no-more-funn.moensted.dk (union of all results)
7921unconfirmed.dsbl.org
7551blackholes.five-ten-sg.com (union of all results)
7198blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
6118psbl.surriel.com
5556sbl.csma.biz
5538cn-kr.blackholes.us (result 127.0.0.3 = Korea)
5538korea.blackholes.us
5507korea.services.net
4963combined-hib.dnsiplists.completewhois.com (union of all results)
4951combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4924no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
4660cn-kr.blackholes.us (result 127.0.0.2 = China)
4660china.blackholes.us
3706dnsbl.ahbl.org (union of all results)
3649bl.spamcop.net
3558blacklist.spambag.org
3232dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
3207dnsbl.njabl.org (union of all results)
3025bl.csma.biz
2967l2.spews.dnsbl.sorbs.net
2595l1.spews.dnsbl.sorbs.net
2557dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2532dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
2417spamsources.fabel.dk
2338spews.dnsbl.net.au
2266xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2266sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2265opm.blitzed.org
1998dnsbl.rangers.eu.org (union of all results)
1954wpbl.dnsbl.net.au
1685dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
1582dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1568dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1508sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1507xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1445no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1365sbl.spamhaus.org
1363sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1302pdl.blackholes.us
1267brazil.blackholes.us
1252unsure.nether.net
1106no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
1034dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1006ricn.dnsbl.net.au
998bl.spamcannibal.org
965comcast.blackholes.us
898dnsbl.antispam.or.id
821spam.wytnij.to
816japan.blackholes.us
723taiwan.blackholes.us
600hongkong.blackholes.us
543no-more-funn.moensted.dk (result 127.0.0.9 = misc)
509probes.dnsbl.net.au
482dnsbl.njabl.org (result 127.0.0.3 = dialup)
467dnsbl.ahbl.org (result 127.0.0.4 = spam source)
415rr.blackholes.us
387mci.blackholes.us
343argentina.blackholes.us
307mexico.blackholes.us
287charter.blackholes.us
241tr.countries.nerd.dk
239turkey.blackholes.us
231russia.blackholes.us
228cw.blackholes.us
219dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
206blackholes.intersil.net
198dnsbl.regedit64.net
197interbusiness.blackholes.us
186blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
184ybl.megacity.org
180query.bondedsender.org (not a blacklist!)
173level3.blackholes.us
160mail-abuse.blacklist.jippg.org
156no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
150qwest.blackholes.us
125thailand.blackholes.us
120wanadoo-fr.blackholes.us
116ohps.dnsbl.net.au
115internap.blackholes.us
113verio.blackholes.us
112blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
109dnsbl.njabl.org (result 127.0.0.2 = open relay)
107malaysia.blackholes.us
103singapore.blackholes.us
98dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
97flowgoaway.com
90relays.ordb.org
83bellsouth.blackholes.us
82xo.blackholes.us
81dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
77cybercon.blackholes.us
73dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
71dnsbl.njabl.org (result 127.0.0.4 = spam source)
67broadwing.blackholes.us
67osps.dnsbl.net.au
62above.blackholes.us
55multihop.dsbl.org
50rogers.blackholes.us
42lauderdale.blackholes.us
34telstra.blackholes.us
34he.blackholes.us
32a2000.blackholes.us
32relays.nether.net
30rdts.dnsbl.net.au
29exemptions.ahbl.org (not a blacklist!)
28covad.blackholes.us
26inflow.blackholes.us
26osrs.dnsbl.net.au
24eli.blackholes.us
19epoch.blackholes.us
19blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
19blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
17yipes.blackholes.us
14rackspace.blackholes.us
14blackholes.uceb.org (union of all results)
12dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
12combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
11infolink.blackholes.us
11blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
11dialup.blacklist.jippg.org (union of all results)
9dnsbl.sorbs.net (result 127.0.0.5 = open relay)
9hil.habeas.com
9blackholes.brainerd.net
8swbell.blackholes.us
8blackholes.uceb.org (result 127.0.0.3 = spam source)
7nigeria.blackholes.us
7burst.blackholes.us
7affinity.blackholes.us
6navisite.blackholes.us
6blackholes.uceb.org (result 127.0.0.2 = open relay)
6spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
6dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
6dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
6spamguard.leadmon.net (union of all results)
5dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
4olm.blackholes.us
4maxim.blackholes.us
4dnsbl.ahbl.org (result 127.0.0.15 = open relay)
3ciberlynx.blackholes.us
3owps.dnsbl.net.au
3blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
3blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
2dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1no-more-funn.moensted.dk (result 127.0.0.8 = open web form)

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
36070(total number of IP addresses whose names were tested, including 394 at SDSC)
16264(union of all domain zones)
12817abuse.rfc-ignorant.org
7616rddn.dnsbl.net.au
6980whois.rfc-ignorant.org (union of all results)
5584whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
4288dynamic.rhs.mailpolice.com
1398whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1313webmail.rhs.mailpolice.com
637rhsbl.ahbl.org
464bl.deadbeef.com
451bulk.rhs.mailpolice.com
362adv.rhs.mailpolice.com
30postmaster.rfc-ignorant.org
24dsn.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
23870(total number of domains tested, including 330 at SDSC)
6696(union of all domain zones)
2713whois.rfc-ignorant.org (union of all results)
2217abuse.rfc-ignorant.org
2197whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1186postmaster.rfc-ignorant.org
1135webmail.rhs.mailpolice.com
896dsn.rfc-ignorant.org
881rhsbl.ahbl.org
516whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
458bogusmx.rfc-ignorant.org
407bulk.rhs.mailpolice.com
175blackhole.securitysage.com
168adv.rhs.mailpolice.com
149bl.deadbeef.com
93porn.rhs.mailpolice.com
47rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
47rhsbl.sorbs.net (union of all results)
41rddn.dnsbl.net.au (zone not intended for this use)
22dynamic.rhs.mailpolice.com
14ex.dnsbl.org
3cart00ney.surriel.com
1fraud.rhs.mailpolice.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 15 June 2005.