Blacklists Compared

22 September 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 hostkarma.junkemailfilter.com (127.0.0.1 result), 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. Because it is too aggressive to be widely useful the l2.apews.org zone is also excluded from the union.

HitsDNS Zone
229967(total number of IP addresses tested, including 495 at SDSC)
220143(union of most IP zones)
198166l2.apews.org
178682zen.spamhaus.org (union of all results)
169213t1.dnsbl.net.au
140775pbl.spamhaus.org (union of all results)
133957dnsbl.sorbs.net (union of all results)
119034dnsbl.tqmcube.com (union of all results)
115249zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
115249pbl.spamhaus.org (result 127.0.0.11 = Spamhaus entry)
114059sbl-xbl.spamhaus.org (union of all results)
113606xbl.spamhaus.org (union of all results)
113448cbl.abuseat.org
113352xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
113350zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
113346sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
106936dnsbl-1.uceprotect.net
104322no-more-funn.moensted.dk (union of all results)
98617dnsbl.sorbs.net (result 127.0.0.10 = dialup)
98074dnsbl-3.uceprotect.net
95454blackholes.five-ten-sg.com (union of all results)
89100blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
81481no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
80292dnsbl.tqmcube.com (result 127.0.0.2 = dialup)
69018psbl.surriel.com
68428dnsbl-2.uceprotect.net
61010ubl.unsubscore.com
46883hostkarma.junkemailfilter.com (result 127.0.0.2 = spam source)
43349bl.spamcop.net
38822dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
33325db.wpbl.info
31306dnsbl.tqmcube.com (result 127.0.0.3 = spam source)
25526zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
25526pbl.spamhaus.org (result 127.0.0.10 = ISP contributed)
21013no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
20620ix.dnsbl.manitu.net
17781mail-abuse.blacklist.jippg.org
15654unconfirmed.dsbl.org
15492list.dsbl.org
15480dsbl.dnsbl.net.au
13863korea.services.net
13607dnsbl.tqmcube.com (result 127.0.0.4 = South Korea)
12637countries.blackholes.us (result 127.4.1.0 = Korea)
12446ips.backscatterer.org
10685countries.blackholes.us (result 127.0.7.6 = Brazil)
9159tr.countries.nerd.dk
8976countries.blackholes.us (result 127.7.9.2 = Turkey)
8744dnsbl.tqmcube.com (result 127.0.0.5 = China)
8650countries.blackholes.us (result 127.1.5.6 = China)
8466countries.blackholes.us (result 127.6.4.3 = Russia)
5517bl.spamcannibal.org
5157blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
5111rmst.dnsbl.net.au
4932countries.blackholes.us (result 127.4.8.4 = Mexico)
4724dnsbl.njabl.org (union of all results)
4425dnsbl.njabl.org (result 127.0.0.9 = open proxy)
4234list.dnswl.org (not a blacklist!)
4099countries.blackholes.us (result 127.0.3.2 = Argentina)
3839spamsources.fabel.dk
3195dnsbl.ahbl.org (union of all results)
3036dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
2414countries.blackholes.us (result 127.3.9.2 = Japan)
2343countries.blackholes.us (result 127.7.6.4 = Thailand)
2216hostkarma.junkemailfilter.com (result 127.0.0.4 = spam source aspirant)
1926probes.dnsbl.net.au
1833bl.csma.biz
1709hostkarma.junkemailfilter.com (result 127.0.0.1 = whitelisted)
1478countries.blackholes.us (result 127.4.5.8 = Malaysia)
1235countries.blackholes.us (result 127.1.5.8 = Taiwan)
1128no-more-funn.moensted.dk (result 127.0.0.9 = misc)
1107blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
926zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
926xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
926sbl-xbl.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
757zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
757sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
757sbl.spamhaus.org
559countries.blackholes.us (result 127.3.4.4 = Hong Kong)
447no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
415aspews.ext.sorbs.net
367no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
352work.drbl.croco.net
306countries.blackholes.us (result 127.7.0.2 = Singapore)
303dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
293blackholes.uceb.org (union of all results)
285dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
275multi.surbl.org
240blackholes.uceb.org (result 127.0.0.6 = spam haven)
189multi.uribl.com (result 127.0.0.2 = spam resource)
189multi.uribl.com (union of all results)
185query.bondedsender.org (not a blacklist!)
183dnsbl.njabl.org (result 127.0.0.4 = spam source)
150iadb2.isipp.com (not a blacklist!)
149iadb.isipp.com (not a blacklist!)
134accredit.habeas.com (not a blacklist!)
129blackholes.uceb.org (result 127.0.0.3 = spam source)
126multihop.dsbl.org
126bl.deadbeef.com
115dnsbl.njabl.org (result 127.0.0.2 = open relay)
94dnsbl.ahbl.org (result 127.0.0.4 = spam source)
72spam.wytnij.to
70relays.nether.net
62dnsbl.sorbs.net (result 127.0.0.6 = spam source)
43hostkarma.junkemailfilter.com (result 127.0.0.3 = mix of spam and nonspam)
43blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
41blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
33dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
33exemptions.ahbl.org (not a blacklist!)
30countries.blackholes.us (result 127.5.6.6 = Nigeria)
29dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
28blackholes.uceb.org (result 127.0.0.2 = open relay)
26rdts.dnsbl.net.au
22blackholes.brainerd.net
22dnsbl.ahbl.org (result 127.0.0.15 = open relay)
15spamguard.leadmon.net (union of all results)
13ohps.dnsbl.net.au
11blackholes.uceb.org (result 127.0.0.5 = dialup)
8spamguard.leadmon.net (result 127.0.0.3 = spam source)
7spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
6dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
3spamsites.dnsbl.net.au
3osrs.dnsbl.net.au
3no-more-funn.moensted.dk (result 127.0.0.4 = unconfirmed opt-in)
3blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
3dnsbl.ahbl.org (result 127.0.0.20 = blog/wiki/comment spam source)
2owps.dnsbl.net.au
2blackholes.five-ten-sg.com (result 127.0.0.11 = TCPA violator)
2dnsbl.ahbl.org (result 127.0.0.11 = no postmaster or abuse e-mail)
2dnsbl.ahbl.org (result 127.0.0.14 = denial-of-service attacker)
1blackholes.uceb.org (result 127.0.0.8 = spam source with fake sender)
1dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
1osps.dnsbl.net.au
1dnsbl.njabl.org (result 127.0.0.8 = open formmail.cgi)
1blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
1dnsbl.ahbl.org (result 127.0.0.10 = shoot on sight spammer)


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

HitsDNS Zone
229967(total number of IP addresses whose names were tested, including 495 at SDSC)
154710(union of all domain zones)
138334l1.apews.org
106653rddn.dnsbl.net.au
104925abuse.rfc-ignorant.org
62964dynamic.rhs.mailpolice.com
55561whois.rfc-ignorant.org (union of all results)
36866whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
18695whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
12465webmail.rhs.mailpolice.com
711multi.surbl.org
663multi.uribl.com (union of all results)
658multi.uribl.com (result 127.0.0.2 = spam resource)
526adv.rhs.mailpolice.com
158bl.deadbeef.com
124postmaster.rfc-ignorant.org
119rhsbl.ahbl.org
104bulk.rhs.mailpolice.com
92dsn.rfc-ignorant.org (zone not intended for this use)
83bogusmx.rfc-ignorant.org
30porn.rhs.mailpolice.com
24rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
24rhsbl.sorbs.net (union of all results)
4blackhole.securitysage.com
3multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
2multi.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
230776(total number of domains tested, including 447 at SDSC)
51028(union of all domain zones)
28994whois.rfc-ignorant.org (union of all results)
28200whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
9077bogusmx.rfc-ignorant.org
5766abuse.rfc-ignorant.org
3808multi.surbl.org
3189multi.uribl.com (union of all results)
3130multi.uribl.com (result 127.0.0.2 = spam resource)
2510l1.apews.org
2054postmaster.rfc-ignorant.org
2001webmail.rhs.mailpolice.com
1132dsn.rfc-ignorant.org
1033porn.rhs.mailpolice.com
794whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
535rhsbl.ahbl.org
474bulk.rhs.mailpolice.com
257blackhole.securitysage.com
207adv.rhs.mailpolice.com
203rddn.dnsbl.net.au (zone not intended for this use)
158dynamic.rhs.mailpolice.com
100rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
100rhsbl.sorbs.net (union of all results)
53multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
15ex.dnsbl.org
6multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
3bl.deadbeef.com
1fraud.rhs.mailpolice.com
1cart00ney.surriel.com


This document was last updated by Jeff Makey <jeff@sdsc.edu> on 28 September 2007.