Blacklists Compared

9 July 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, and because it is too aggressive to be widely useful the block.blars.org zone is also excluded.

HitsDNS Zone
46343(total number of IP addresses tested, including 413 at SDSC)
40353(union of most IP zones)
33812block.blars.org
26383t1.dnsbl.net.au
20118dnsbl.sorbs.net (union of all results)
16049sbl-xbl.spamhaus.org (union of all results)
15451dnsbl.sorbs.net (result 127.0.0.10 = dialup)
14476xbl.spamhaus.org (union of all results)
13062cn-kr.blackholes.us (union of all results)
13022xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
13022sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
12998cbl.abuseat.org
12087dynablock.njabl.org
11529rmst.dnsbl.net.au
10951no-more-funn.moensted.dk (union of all results)
10842unconfirmed.dsbl.org
10821list.dsbl.org
10819dsbl.dnsbl.net.au
10210blackholes.five-ten-sg.com (union of all results)
9855blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
8037sbl.csma.biz
7613cn-kr.blackholes.us (result 127.0.0.2 = China)
7613china.blackholes.us
6316combined-hib.dnsiplists.completewhois.com (union of all results)
6276combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
5965blacklist.spambag.org
5652no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
5577korea.services.net
5449cn-kr.blackholes.us (result 127.0.0.3 = Korea)
5449korea.blackholes.us
4827bl.spamcop.net
4352bl.csma.biz
4021l2.spews.dnsbl.sorbs.net
3611dnsbl.njabl.org (union of all results)
3555l1.spews.dnsbl.sorbs.net
3311spews.dnsbl.net.au
3085spamsources.fabel.dk
3008dnsbl.ahbl.org (union of all results)
2575dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2428dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
2425ricn.dnsbl.net.au
2385dnsbl.rangers.eu.org (union of all results)
2383no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
2375opm.blitzed.org
2374sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2372xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
2267wpbl.dnsbl.net.au
2151no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
2126dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
2064psbl.surriel.com
2017dnsbl.regedit64.net
1931dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1663sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1663sbl.spamhaus.org
1642pdl.blackholes.us
1562unsure.nether.net
1472dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1450brazil.blackholes.us
1360dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
1323xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1322sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1306comcast.blackholes.us
1235bl.spamcannibal.org
1126dnsbl.antispam.or.id
1024japan.blackholes.us
983dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
892spam.wytnij.to
885taiwan.blackholes.us
803rr.blackholes.us
749dnsbl.njabl.org (result 127.0.0.3 = dialup)
610no-more-funn.moensted.dk (result 127.0.0.9 = misc)
588probes.dnsbl.net.au
576dnsbl.ahbl.org (result 127.0.0.4 = spam source)
561charter.blackholes.us
516russia.blackholes.us
480hongkong.blackholes.us
444argentina.blackholes.us
411mail-abuse.blacklist.jippg.org
402mexico.blackholes.us
399interbusiness.blackholes.us
333tr.countries.nerd.dk
330turkey.blackholes.us
208dnsbl.njabl.org (result 127.0.0.2 = open relay)
198singapore.blackholes.us
195thailand.blackholes.us
188cw.blackholes.us
181blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
178blackholes.intersil.net
174dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
173query.bondedsender.org (not a blacklist!)
166qwest.blackholes.us
166no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
143level3.blackholes.us
138malaysia.blackholes.us
135mci.blackholes.us
134relays.ordb.org
133dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
122bellsouth.blackholes.us
111internap.blackholes.us
108dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
107ohps.dnsbl.net.au
103blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
96flowgoaway.com
89dnsbl.njabl.org (result 127.0.0.4 = spam source)
88wanadoo-fr.blackholes.us
88multihop.dsbl.org
86verio.blackholes.us
71cybercon.blackholes.us
70dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
61rogers.blackholes.us
60above.blackholes.us
58xo.blackholes.us
50osps.dnsbl.net.au
49he.blackholes.us
46osrs.dnsbl.net.au
44telstra.blackholes.us
40combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
36covad.blackholes.us
36a2000.blackholes.us
34relays.nether.net
33blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
31exemptions.ahbl.org (not a blacklist!)
28infolink.blackholes.us
27broadwing.blackholes.us
26inflow.blackholes.us
26rdts.dnsbl.net.au
25eli.blackholes.us
25blackholes.uceb.org (union of all results)
20blackholes.brainerd.net
19blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
16spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
16spamguard.leadmon.net (union of all results)
13dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
11dnsbl.sorbs.net (result 127.0.0.5 = open relay)
9yipes.blackholes.us
9swbell.blackholes.us
9rackspace.blackholes.us
9blackholes.uceb.org (result 127.0.0.2 = open relay)
9blackholes.uceb.org (result 127.0.0.6 = spam haven)
9dialup.blacklist.jippg.org (union of all results)
8nigeria.blackholes.us
8maxim.blackholes.us
8lauderdale.blackholes.us
8blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
8combined-hib.dnsiplists.completewhois.com (result 127.0.0.3 = hijacked network)
6olm.blackholes.us
6burst.blackholes.us
6affinity.blackholes.us
6blackholes.uceb.org (result 127.0.0.3 = spam source)
6dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
6hil.habeas.com
6blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
6dnsbl.ahbl.org (result 127.0.0.15 = open relay)
5pajo.blackholes.us
5navisite.blackholes.us
4epoch.blackholes.us
4omrs.dnsbl.net.au
4dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
3dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
3blackholes.five-ten-sg.com (result 127.0.0.6 = open relay)
2dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
2owps.dnsbl.net.au
2blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
1blackholes.uceb.org (result 127.0.0.8 = spam source with fake sender)
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1no-more-funn.moensted.dk (result 127.0.0.5 = relay output)
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
46343(total number of IP addresses whose names were tested, including 413 at SDSC)
22378(union of all domain zones)
17045abuse.rfc-ignorant.org
11139rddn.dnsbl.net.au
9431whois.rfc-ignorant.org (union of all results)
7119whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
6149dynamic.rhs.mailpolice.com
2313whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
1462webmail.rhs.mailpolice.com
755rhsbl.ahbl.org
595bl.deadbeef.com
505bulk.rhs.mailpolice.com
343adv.rhs.mailpolice.com
105postmaster.rfc-ignorant.org
30dsn.rfc-ignorant.org (zone not intended for this use)
6bogusmx.rfc-ignorant.org
4blackhole.securitysage.com
4porn.rhs.mailpolice.com
1fraud.rhs.mailpolice.com

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

HitsDNS Zone
28380(total number of domains tested, including 359 at SDSC)
7713(union of all domain zones)
3329whois.rfc-ignorant.org (union of all results)
2695whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
2389abuse.rfc-ignorant.org
1295postmaster.rfc-ignorant.org
1167webmail.rhs.mailpolice.com
981dsn.rfc-ignorant.org
954rhsbl.ahbl.org
634whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
550bogusmx.rfc-ignorant.org
526bulk.rhs.mailpolice.com
211blackhole.securitysage.com
176bl.deadbeef.com
168adv.rhs.mailpolice.com
113porn.rhs.mailpolice.com
57rddn.dnsbl.net.au (zone not intended for this use)
47rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
47rhsbl.sorbs.net (union of all results)
21dynamic.rhs.mailpolice.com
15ex.dnsbl.org
4cart00ney.surriel.com
2fraud.rhs.mailpolice.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 23 July 2005.