Blacklists Compared

19 May 2007

[ 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, query.bondedsender.org, list.dnswl.org, accredit.habeas.com, iadb.isipp.com, and iadb2.isipp.com zones because they are not blacklists.

HitsDNS Zone
114167(total number of IP addresses tested, including 498 at SDSC)
104965(union of most IP zones)
82140zen.spamhaus.org (union of all results)
81906t1.dnsbl.net.au
60591sbl-xbl.spamhaus.org (union of all results)
60397dnsbl.tqmcube.com (union of all results)
59838xbl.spamhaus.org (union of all results)
59435cbl.abuseat.org
59428zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
59424xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
59419sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
59026dnsbl.sorbs.net (union of all results)
59000no-more-funn.moensted.dk (union of all results)
55718dynablock.njabl.org
55718pbl.spamhaus.org (union of all results)
51582blackholes.five-ten-sg.com (union of all results)
51346zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
51346pbl.spamhaus.org (result 127.0.0.11 = Spamhaus entry)
46486blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
43780dnsbl.sorbs.net (result 127.0.0.10 = dialup)
42635psbl.surriel.com
36156no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
33988dnsbl-2.uceprotect.net
32141dnsbl-1.uceprotect.net
31865dnsbl.tqmcube.com (result 127.0.0.2 = dialup)
19154dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
19082l2.apews.dnsbl.uceprotect.net
18558no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
18129dnsbl-3.uceprotect.net
16660bl.spamcop.net
16614cn-kr.blackholes.us (result 127.0.0.2 = China)
16614cn-kr.blackholes.us (union of all results)
15550db.wpbl.info
14333dnsbl.tqmcube.com (result 127.0.0.3 = spam source)
11462ubl.unsubscore.com
10766dnsbl.tqmcube.com (result 127.0.0.5 = China)
10579unconfirmed.dsbl.org
10476list.dsbl.org
10467dsbl.dnsbl.net.au
10433korea.services.net
10203dnsbl.tqmcube.com (result 127.0.0.4 = South Korea)
9012china.blackholes.us
7664korea.blackholes.us
5846blacklist.spambag.org
5794mail-abuse.blacklist.jippg.org
4376zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
4376pbl.spamhaus.org (result 127.0.0.10 = ISP contributed)
4013no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
3901blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
3824ix.dnsbl.manitu.net
3781dnsbl.sorbs.net (result 127.0.0.6 = spam source)
3497tr.countries.nerd.dk
3496turkey.blackholes.us
3302rmst.dnsbl.net.au
3220dnsbl.njabl.org (union of all results)
2979dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2855russia.blackholes.us
2722bl.spamcannibal.org
2667list.dnswl.org (not a blacklist!)
2651brazil.blackholes.us
2367spamsources.fabel.dk
2179dnsbl.ahbl.org (union of all results)
2047dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1544combined-hib.dnsiplists.completewhois.com (union of all results)
1529combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
1337zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1337xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1337sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
1144japan.blackholes.us
1026blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
1020taiwan.blackholes.us
1000thailand.blackholes.us
923probes.dnsbl.net.au
888zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
888sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
888sbl.spamhaus.org
807argentina.blackholes.us
692malaysia.blackholes.us
519dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
479hongkong.blackholes.us
449mexico.blackholes.us
359dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
327blackholes.uceb.org (union of all results)
288blackholes.uceb.org (result 127.0.0.6 = spam haven)
271singapore.blackholes.us
255dnsbl.antispam.or.id
242no-more-funn.moensted.dk (result 127.0.0.9 = misc)
196no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
162bl.deadbeef.com
157query.bondedsender.org (not a blacklist!)
156blackholes.uceb.org (result 127.0.0.3 = spam source)
150work.drbl.croco.net
129dnsbl.njabl.org (result 127.0.0.4 = spam source)
119accredit.habeas.com (not a blacklist!)
117iadb2.isipp.com (not a blacklist!)
117iadb.isipp.com (not a blacklist!)
112dnsbl.njabl.org (result 127.0.0.2 = open relay)
88blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
81multihop.dsbl.org
80spam.wytnij.to
76dnsbl.ahbl.org (result 127.0.0.4 = spam source)
68blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
45dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
39dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
37ohps.dnsbl.net.au
34relays.nether.net
26tor.dnsbl.sectoor.de (result 127.0.0.2 = /24 contains a Tor server)
26tor.dnsbl.sectoor.de (union of all results)
25multi.surbl.org
22blackholes.uceb.org (result 127.0.0.5 = dialup)
18exemptions.ahbl.org (not a blacklist!)
15combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
14spamguard.leadmon.net (union of all results)
12osps.dnsbl.net.au
12spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
9nigeria.blackholes.us
9blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
8rdts.dnsbl.net.au
8dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
7blackholes.uceb.org (result 127.0.0.2 = open relay)
7dnsbl.ahbl.org (result 127.0.0.15 = open relay)
6osrs.dnsbl.net.au
6blackholes.brainerd.net
3multi.uribl.com (result 127.0.0.2 = spam resource)
3owps.dnsbl.net.au
3dnsbl.ahbl.org (result 127.0.0.20 = blog/wiki/comment spam source)
3multi.uribl.com (union of all results)
2omrs.dnsbl.net.au
2spamguard.leadmon.net (result 127.0.0.3 = spam source)
2no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)
2blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1blackholes.five-ten-sg.com (result 127.0.0.11 = TCPA violator)
1blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
1dnsbl.ahbl.org (result 127.0.0.11 = no postmaster or abuse e-mail)


Survey results for all known public domain-name-based DNS blacklists. Lookups were done on the domain names of connecting IP addresses.

HitsDNS Zone
114167(total number of IP addresses whose names were tested, including 498 at SDSC)
65741(union of all domain zones)
53202l1.apews.rhsbl.uceprotect.net
43076rddn.dnsbl.net.au
42005abuse.rfc-ignorant.org
30611dynamic.rhs.mailpolice.com
23403whois.rfc-ignorant.org (union of all results)
13218whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
10185whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
5809webmail.rhs.mailpolice.com
666multi.surbl.org
656multi.uribl.com (union of all results)
653multi.uribl.com (result 127.0.0.2 = spam resource)
478adv.rhs.mailpolice.com
426postmaster.rfc-ignorant.org
114rhsbl.ahbl.org
82bulk.rhs.mailpolice.com
70dsn.rfc-ignorant.org (zone not intended for this use)
70bogusmx.rfc-ignorant.org
36rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
36rhsbl.sorbs.net (union of all results)
13bl.deadbeef.com
9porn.rhs.mailpolice.com
3blackhole.securitysage.com
2multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
1multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
1ex.dnsbl.org


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

HitsDNS Zone
56124(total number of domains tested, including 492 at SDSC)
12402(union of all domain zones)
4118whois.rfc-ignorant.org (union of all results)
3626whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
3004abuse.rfc-ignorant.org
2653multi.surbl.org
2481multi.uribl.com (union of all results)
2438multi.uribl.com (result 127.0.0.2 = spam resource)
1472postmaster.rfc-ignorant.org
1398webmail.rhs.mailpolice.com
1176l1.apews.rhsbl.uceprotect.net
936bogusmx.rfc-ignorant.org
757dsn.rfc-ignorant.org
492whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
223rhsbl.ahbl.org
204porn.rhs.mailpolice.com
162adv.rhs.mailpolice.com
146bulk.rhs.mailpolice.com
124blackhole.securitysage.com
78rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
78rhsbl.sorbs.net (union of all results)
45rddn.dnsbl.net.au (zone not intended for this use)
38multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
14ex.dnsbl.org
13dynamic.rhs.mailpolice.com
5multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
2bl.deadbeef.com
1cart00ney.surriel.com


This document was last updated by Jeff Makey <jeff@sdsc.edu> on 24 May 2007.