Blacklists Compared

14 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
35070(total number of IP addresses tested, including 422 at SDSC)
29702(union of most IP zones)
19933t1.dnsbl.net.au
14390dnsbl.sorbs.net (union of all results)
14315sbl-xbl.spamhaus.org (union of all results)
12252xbl.spamhaus.org (union of all results)
11111xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
11108sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
11101cbl.abuseat.org
10618cn-kr.blackholes.us (union of all results)
9916dnsbl.sorbs.net (result 127.0.0.10 = dialup)
9195no-more-funn.moensted.dk (union of all results)
8496unconfirmed.dsbl.org
8398list.dsbl.org
8396dsbl.dnsbl.net.au
7948rmst.dnsbl.net.au
7810dynablock.njabl.org
7354blackholes.five-ten-sg.com (union of all results)
7009blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
6560sbl.csma.biz
5639cn-kr.blackholes.us (result 127.0.0.3 = Korea)
5639korea.blackholes.us
5628korea.services.net
5623no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
5547combined-hib.dnsiplists.completewhois.com (union of all results)
5473combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
5160psbl.surriel.com
4979cn-kr.blackholes.us (result 127.0.0.2 = China)
4979china.blackholes.us
4565bl.spamcop.net
4216dnsbl.ahbl.org (union of all results)
4037bl.csma.biz
3805blacklist.spambag.org
3713dnsbl.njabl.org (union of all results)
3614dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
3588l2.spews.dnsbl.sorbs.net
3156l1.spews.dnsbl.sorbs.net
3081dnsbl.njabl.org (result 127.0.0.9 = open proxy)
3062spews.dnsbl.net.au
2898wpbl.dnsbl.net.au
2640xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2640sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2635opm.blitzed.org
2410sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
2410sbl.spamhaus.org
2299dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
2294ricn.dnsbl.net.au
2184xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
2184sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1904spamsources.fabel.dk
1902spam.wytnij.to
1746dnsbl.rangers.eu.org (union of all results)
1672dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1612dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1552dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
1472no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
1405dnsbl.antispam.or.id
1341dnsbl.regedit64.net
1331dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
1284comcast.blackholes.us
1109unsure.nether.net
1042brazil.blackholes.us
1033pdl.blackholes.us
1021no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
985bl.spamcannibal.org
916no-more-funn.moensted.dk (result 127.0.0.9 = misc)
724probes.dnsbl.net.au
582dnsbl.ahbl.org (result 127.0.0.4 = spam source)
545japan.blackholes.us
471dnsbl.njabl.org (result 127.0.0.3 = dialup)
437taiwan.blackholes.us
420mci.blackholes.us
318rr.blackholes.us
301mexico.blackholes.us
300charter.blackholes.us
288argentina.blackholes.us
257cw.blackholes.us
247russia.blackholes.us
243mail-abuse.blacklist.jippg.org
209blackholes.intersil.net
208interbusiness.blackholes.us
203level3.blackholes.us
195ybl.megacity.org
177query.bondedsender.org (not a blacklist!)
175no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
171blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
160qwest.blackholes.us
157tr.countries.nerd.dk
154turkey.blackholes.us
138ohps.dnsbl.net.au
134thailand.blackholes.us
127internap.blackholes.us
123verio.blackholes.us
120singapore.blackholes.us
118blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
116hongkong.blackholes.us
116dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
107malaysia.blackholes.us
101dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
97dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
95dnsbl.njabl.org (result 127.0.0.2 = open relay)
91xo.blackholes.us
91wanadoo-fr.blackholes.us
90relays.ordb.org
88flowgoaway.com
87multihop.dsbl.org
80cybercon.blackholes.us
77dnsbl.njabl.org (result 127.0.0.4 = spam source)
74combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
68dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
67osps.dnsbl.net.au
65above.blackholes.us
58rogers.blackholes.us
57bellsouth.blackholes.us
43lauderdale.blackholes.us
42telstra.blackholes.us
36inflow.blackholes.us
35he.blackholes.us
33relays.nether.net
33exemptions.ahbl.org (not a blacklist!)
30a2000.blackholes.us
29osrs.dnsbl.net.au
28broadwing.blackholes.us
27yipes.blackholes.us
24covad.blackholes.us
23rdts.dnsbl.net.au
18eli.blackholes.us
17rackspace.blackholes.us
17dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
16blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
16spamguard.leadmon.net (union of all results)
15spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
15blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
15blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
15blackholes.uceb.org (union of all results)
14blackholes.brainerd.net
12infolink.blackholes.us
11affinity.blackholes.us
11dnsbl.sorbs.net (result 127.0.0.5 = open relay)
10blackholes.uceb.org (result 127.0.0.2 = open relay)
9nigeria.blackholes.us
9epoch.blackholes.us
9dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
9dialup.blacklist.jippg.org (union of all results)
8swbell.blackholes.us
8burst.blackholes.us
8hil.habeas.com
8blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
7olm.blackholes.us
7navisite.blackholes.us
7dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
6maxim.blackholes.us
5blackholes.uceb.org (result 127.0.0.3 = spam source)
4pajo.blackholes.us
4dnsbl.ahbl.org (result 127.0.0.15 = open relay)
3omrs.dnsbl.net.au
3bl.deadbeef.com
2ciberlynx.blackholes.us
2owps.dnsbl.net.au
2dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
2dnsbl.ahbl.org (result 127.0.0.14 = denial-of-service attacker)
1media3.blackholes.us
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1spamsites.dnsbl.net.au
1owfs.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)
1blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
1blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)

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
35070(total number of IP addresses whose names were tested, including 422 at SDSC)
15262(union of all domain zones)
11936abuse.rfc-ignorant.org
6743rddn.dnsbl.net.au
4435whois.rfc-ignorant.org (union of all results)
3297dynamic.rhs.mailpolice.com
3138whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
1378webmail.rhs.mailpolice.com
1299whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
476bulk.rhs.mailpolice.com
460rhsbl.ahbl.org
327adv.rhs.mailpolice.com
248bl.deadbeef.com
20postmaster.rfc-ignorant.org
10dsn.rfc-ignorant.org (zone not intended for this use)
6blackhole.securitysage.com
6porn.rhs.mailpolice.com
4bogusmx.rfc-ignorant.org
1cart00ney.surriel.com

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

HitsDNS Zone
23802(total number of domains tested, including 346 at SDSC)
6429(union of all domain zones)
2512whois.rfc-ignorant.org (union of all results)
2074abuse.rfc-ignorant.org
2022whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1016postmaster.rfc-ignorant.org
946webmail.rhs.mailpolice.com
810rhsbl.ahbl.org
780dsn.rfc-ignorant.org
513bulk.rhs.mailpolice.com
490whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
418bogusmx.rfc-ignorant.org
188blackhole.securitysage.com
184adv.rhs.mailpolice.com
180bl.deadbeef.com
70porn.rhs.mailpolice.com
36rddn.dnsbl.net.au (zone not intended for this use)
35rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
35rhsbl.sorbs.net (union of all results)
16dynamic.rhs.mailpolice.com
15ex.dnsbl.org
3cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 24 May 2005.