Blacklists Compared

23 January 2010

[ 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 (all results but 127.0.0.2, 127.0.0.3, and 127.0.0.4), 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
218047(total number of IP addresses tested, including 184 at SDSC)
214185(union of most IP zones)
201160zen.spamhaus.org (union of all results)
184260l2.apews.org
163814cbl.abuseat.org
163728zen.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
160072b.barracudacentral.org
149794dnsbl-1.uceprotect.net
144616dnsbl-2.uceprotect.net
141371dnsbl-3.uceprotect.net
135518hostkarma.junkemailfilter.com (result 127.0.0.2 = spam source)
131081dnsbl.sorbs.net (union of all results)
127646psbl.surriel.com
123558zen.spamhaus.org (result 127.0.0.11 = Spamhaus PBL, Spamhaus entry)
110427ubl.unsubscore.com
96152dnsbl.sorbs.net (result 127.0.0.7 = hacked/vulnerable)
76819hostkarma.junkemailfilter.com (result 127.0.1.1 = MTA sends QUIT)
60912blackholes.five-ten-sg.com (union of all results)
57287bl.spameatingmonkey.net
56192blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
49696dnsbl.sorbs.net (result 127.0.0.10 = dialup)
44810no-more-funn.moensted.dk (union of all results)
41517bl.spamcop.net
34599zen.spamhaus.org (result 127.0.0.10 = Spamhaus PBL, ISP contributed)
32093ix.dnsbl.manitu.net
30935db.wpbl.info
30272bl.score.senderscore.com
30198no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
20475mail-abuse.blacklist.jippg.org
16048spam.dnsbl.sorbs.net
14333hostkarma.junkemailfilter.com (result 127.0.1.2 = MTA does not send QUIT)
11339no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
10547korea.services.net
9879dnsbl.inps.de
8012bl.spamcannibal.org
5263spamsources.fabel.dk
4582list.dnswl.org (not a blacklist!)
3569blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
2849ips.backscatterer.org
2834hostkarma.junkemailfilter.com (result 127.0.0.1 = whitelisted)
2790no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
2692tr.countries.nerd.dk
2339dnsbl.njabl.org (union of all results)
2075dnsbl.njabl.org (result 127.0.0.9 = open proxy)
1929hostkarma.junkemailfilter.com (result 127.0.0.3 = mix of spam and nonspam)
1382hostkarma.junkemailfilter.com (result 127.0.0.5 = do not blacklist)
1128blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
597zen.spamhaus.org (union of SBL and SBLCSS results)
510zen.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
480accredit.habeas.com (not a blacklist!)
476aspews.ext.sorbs.net
457l2.bbfh.ext.sorbs.net
428no-more-funn.moensted.dk (result 127.0.0.9 = misc)
395query.bondedsender.org (not a blacklist!)
250dnsbl.sorbs.net (result 127.0.0.6 = spam source)
223dnsbl.ahbl.org (union of all results)
222l1.bbfh.ext.sorbs.net
157dnsbl.njabl.org (result 127.0.0.2 = open relay)
146iadb2.isipp.com (not a blacklist!)
136no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
117dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
109iadb.isipp.com (not a blacklist!)
107dnsbl.njabl.org (result 127.0.0.4 = spam source)
105dnsbl.ahbl.org (result 127.0.0.4 = spam source)
100hostkarma.junkemailfilter.com (result 127.0.0.4 = spam source aspirant)
87zen.spamhaus.org (result 127.0.0.3 = Spamhaus SBLCSS)
48dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
40dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
37bl.deadbeef.com
33tor.dnsbl.sectoor.de (result 127.0.0.2 = /24 contains a Tor server)
33tor.dnsbl.sectoor.de (union of all results)
22blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
16zen.spamhaus.org (result 127.0.0.5 = time-expired NJABL open proxy)
13dnsbl-0.uceprotect.net
8spamguard.leadmon.net (union of all results)
7spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
7multi.uribl.com (union of all results)
6multi.uribl.com (result 127.0.0.2 = spam resource)
5dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
4multi.surbl.org
2hostkarma.junkemailfilter.com (result 127.0.2.3 = domain first seen more than 7 days ago)
1wadb.isipp.com
1multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
1dnsbl.sorbs.net (result 127.0.0.5 = open relay)
1spamguard.leadmon.net (result 127.0.0.9 = abused DNS server)
1blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
1blackholes.brainerd.net
1dnsbl.ahbl.org (result 127.0.0.20 = blog/wiki/comment spam source)


Survey results for all known public domain-name-based DNS blacklists. Lookups were done on the domain names of connecting IP addresses. The "union of most domain zones" line includes data from the hostkarma.junkemailfilter.com zone only when the results are 127.0.0.2, 127.0.0.3, or 127.0.0.4 because other results are not blacklists.

HitsDNS Zone
218047(total number of IP addresses whose names were tested, including 184 at SDSC)
131972hostkarma.junkemailfilter.com (result 127.0.2.3 = domain first seen more than 7 days ago)
114915hostkarma.junkemailfilter.com (result 127.0.1.1 = MTA sends QUIT)
109001(union of most domain zones)
94010l1.apews.org
86689abuse.rfc-ignorant.org
39313dynamic.rhs.mailpolice.com
38853whois.rfc-ignorant.org (union of all results)
29159whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
13988hostkarma.junkemailfilter.com (result 127.0.0.5 = do not blacklist)
9694whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
4255webmail.rhs.mailpolice.com
3105hostkarma.junkemailfilter.com (result 127.0.0.1 = whitelisted)
1822hostkarma.junkemailfilter.com (result 127.0.1.4 = no verify host)
881adv.rhs.mailpolice.com
492hostkarma.junkemailfilter.com (result 127.0.0.2 = spam source)
447urired.spameatingmonkey.net
306hostkarma.junkemailfilter.com (result 127.0.0.3 = mix of spam and nonspam)
149hostkarma.junkemailfilter.com (result 127.0.1.2 = MTA does not send QUIT)
107rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
107rhsbl.sorbs.net (union of all results)
73rhsbl.ahbl.org
70hostkarma.junkemailfilter.com (result 127.0.2.2 = domain first seen in last 7 days)
63postmaster.rfc-ignorant.org
43multi.uribl.com (result 127.0.0.2 = spam resource)
43multi.uribl.com (union of all results)
38multi.surbl.org
38dsn.rfc-ignorant.org (zone not intended for this use)
37bulk.rhs.mailpolice.com
32bogusmx.rfc-ignorant.org
28fresh.spameatingmonkey.net
26dob.sibl.support-intelligence.net
14porn.rhs.mailpolice.com
4bl.deadbeef.com
2hostkarma.junkemailfilter.com (result 127.0.2.1 = domain first seen today)


Survey results for all known public domain-name-based DNS blacklists. Lookups were done on SMTP sender domains. The "union of most domain zones" line includes data from the hostkarma.junkemailfilter.com zone only when the results are 127.0.0.2, 127.0.0.3, or 127.0.0.4 because other results are not blacklists.

HitsDNS Zone
75559(total number of domains tested, including 172 at SDSC)
70883hostkarma.junkemailfilter.com (result 127.0.2.3 = domain first seen more than 7 days ago)
15288(union of most domain zones)
7561hostkarma.junkemailfilter.com (result 127.0.1.1 = MTA sends QUIT)
5207whois.rfc-ignorant.org (union of all results)
4909whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
4419hostkarma.junkemailfilter.com (result 127.0.0.5 = do not blacklist)
3816urired.spameatingmonkey.net
3494abuse.rfc-ignorant.org
2334hostkarma.junkemailfilter.com (result 127.0.0.1 = whitelisted)
2010postmaster.rfc-ignorant.org
1712bogusmx.rfc-ignorant.org
1434l1.apews.org
1423hostkarma.junkemailfilter.com (result 127.0.0.2 = spam source)
1216multi.surbl.org
923hostkarma.junkemailfilter.com (result 127.0.2.2 = domain first seen in last 7 days)
770webmail.rhs.mailpolice.com
724multi.uribl.com (union of all results)
709multi.uribl.com (result 127.0.0.2 = spam resource)
493dsn.rfc-ignorant.org
470hostkarma.junkemailfilter.com (result 127.0.0.3 = mix of spam and nonspam)
301adv.rhs.mailpolice.com
298whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
205porn.rhs.mailpolice.com
74bulk.rhs.mailpolice.com
47dynamic.rhs.mailpolice.com
27hostkarma.junkemailfilter.com (result 127.0.1.2 = MTA does not send QUIT)
25rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
25rhsbl.sorbs.net (union of all results)
22hostkarma.junkemailfilter.com (result 127.0.2.1 = domain first seen today)
20hostkarma.junkemailfilter.com (result 127.0.1.4 = no verify host)
20rhsbl.ahbl.org
14ex.dnsbl.org
12multi.uribl.com (result 127.0.0.4 = opt-out spam resource)
9dob.sibl.support-intelligence.net
5fresh.spameatingmonkey.net
3multi.uribl.com (result 127.0.0.8 = new domain or concealed contact)
2fraud.rhs.mailpolice.com
1hostkarma.junkemailfilter.com (result 127.0.1.3 = MTA somtimes sends QUIT)
1bl.deadbeef.com


This document was last updated by Jeff Makey <jeff@sdsc.edu> on 28 January 2010.