Blacklists Compared

6 November 2004

[ 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
34544(total number of IP addresses tested, including 427 at SDSC)
29175(union of most IP zones)
23255t1.dnsbl.net.au
19861blackholes.five-ten-sg.com (union of all results)
19077blackholes.five-ten-sg.com (result 127.0.0.2 = spam source)
15822sbl-xbl.spamhaus.org (union of all results)
15763dnsbl.sorbs.net (union of all results)
14668xbl.spamhaus.org (union of all results)
14640cbl.abuseat.org
14626xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
14624sbl-xbl.spamhaus.org (result 127.0.0.4 = Composite Blocking List)
10751unconfirmed.dsbl.org
10653list.dsbl.org
10646dsbl.dnsbl.net.au
10431dnsbl.sorbs.net (result 127.0.0.10 = dialup)
9968no-more-funn.moensted.dk (union of all results)
9960dynablock.njabl.org
9315cn-kr.blackholes.us (union of all results)
6800sbl.csma.biz
6542cn-kr.blackholes.us (result 127.0.0.3 = Korea)
6542korea.blackholes.us
6535korea.services.net
6141psbl.surriel.com
6014no-more-funn.moensted.dk (result 127.0.0.2 = spam source)
5859rmst.dnsbl.net.au
5765combined-hib.dnsiplists.completewhois.com (union of all results)
5742combined-hib.dnsiplists.completewhois.com (result 127.0.0.4 = bad whois data)
4439blacklist.spambag.org
4435dnsbl.njabl.org (union of all results)
4271bl.csma.biz
3824bl.spamcop.net
3085wpbl.dnsbl.net.au
3062l2.spews.dnsbl.sorbs.net
3060dnsbl.sorbs.net (result 127.0.0.7 = open formmail.cgi)
3040dnsbl.njabl.org (result 127.0.0.9 = open proxy)
2773cn-kr.blackholes.us (result 127.0.0.2 = China)
2773china.blackholes.us
2697spews.dnsbl.net.au
2678l1.spews.dnsbl.sorbs.net
2277block.blars.org
2235dnsbl.ahbl.org (union of all results)
2184spamsources.fabel.dk
2123no-more-funn.moensted.dk (result 127.0.0.3 = dialup)
2047dnsbl.sorbs.net (result 127.0.0.6 = spam source)
1982pdl.blackholes.us
1710ricn.dnsbl.net.au
1434sbl.spamhaus.org
1431dnsbl.ahbl.org (result 127.0.0.3 = open proxy)
1424sbl-xbl.spamhaus.org (result 127.0.0.2 = Spamhaus SBL)
1304spam.wytnij.to
1297unsure.nether.net
1287dnsbl.antispam.or.id
1171dnsbl.sorbs.net (result 127.0.0.3 = open socks proxy)
1093work.drbl.croco.net
1074dnsbl.njabl.org (result 127.0.0.3 = dialup)
1005dnsbl.sorbs.net (result 127.0.0.2 = open http proxy)
953bl.spamcannibal.org
850dnsbl.rangers.eu.org (union of all results)
848brazil.blackholes.us
835no-more-funn.moensted.dk (result 127.0.0.9 = misc)
777japan.blackholes.us
777no-more-funn.moensted.dk (result 127.0.0.10 = open proxy)
715comcast.blackholes.us
692dnsbl.ahbl.org (result 127.0.0.4 = spam source)
691level3.blackholes.us
656xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
656sbl-xbl.spamhaus.org (result 127.0.0.6 = Blitzed Open Proxy Monitor List)
655opm.blitzed.org
648probes.dnsbl.net.au
615dnsbl.rangers.eu.org (result 127.0.0.2 = dialup)
538taiwan.blackholes.us
499ybl.megacity.org
491blackholes.five-ten-sg.com (result 127.0.0.7 = spam haven)
442rr.blackholes.us
419charter.blackholes.us
324cw.blackholes.us
311spamguard.leadmon.net (union of all results)
283mexico.blackholes.us
248spamguard.leadmon.net (result 127.0.0.2 = dialup)
245no-more-funn.moensted.dk (result 127.0.0.7 = spam haven)
225russia.blackholes.us
215qwest.blackholes.us
203blackholes.intersil.net
199blackholes.five-ten-sg.com (result 127.0.0.4 = unconfirmed opt-in)
189interbusiness.blackholes.us
189argentina.blackholes.us
187hongkong.blackholes.us
170dnsbl.njabl.org (result 127.0.0.2 = source or relay)
164dnsbl.njabl.org (result 127.0.0.4 = spam source)
147verio.blackholes.us
145dnsbl.sorbs.net (result 127.0.0.4 = open proxy)
144dnsbl.rangers.eu.org (result 127.0.0.16 = spam haven)
142wanadoo-fr.blackholes.us
140ohps.dnsbl.net.au
133query.bondedsender.org (not a blacklist!)
125xo.blackholes.us
125flowgoaway.com
113dnsbl.ahbl.org (result 127.0.0.19 = open proxy test zone)
110relaywatcher.n13mbl.com
108turkey.blackholes.us
108tr.countries.nerd.dk
106singapore.blackholes.us
100internap.blackholes.us
95malaysia.blackholes.us
92above.blackholes.us
90osps.dnsbl.net.au
88multihop.dsbl.org
84dialup.blacklist.jippg.org (union of all results)
76dialup.blacklist.jippg.org (result 127.0.0.3 = dialup outside Japan)
68dnsbl.rangers.eu.org (result 127.0.0.8 = spam source)
67relays.ordb.org
64cybercon.blackholes.us
63spamguard.leadmon.net (result 127.0.0.7 = spam source netblock)
60thailand.blackholes.us
55bellsouth.blackholes.us
53he.blackholes.us
52yipes.blackholes.us
51telstra.blackholes.us
49relays.nether.net
48ph.rbl.cluecentral.net
47covad.blackholes.us
46swbell.blackholes.us
42dnsbl.sorbs.net (result 127.0.0.9 = zombie network)
42osrs.dnsbl.net.au
40infolink.blackholes.us
40inflow.blackholes.us
37nigeria.blackholes.us
36blackholes.five-ten-sg.com (result 127.0.0.9 = misc)
31mail-abuse.blacklist.jippg.org
30rogers.blackholes.us
30blackholes.five-ten-sg.com (result 127.0.0.12 = spam-friendly freemail provider)
29broadwing.blackholes.us
28blackholes.brainerd.net
26dnsbl.ahbl.org (result 127.0.0.7 = spam haven)
24a2000.blackholes.us
23maxim.blackholes.us
22dnsbl.rangers.eu.org (result 127.0.0.4 = virus notices)
21rackspace.blackholes.us
21blackholes.five-ten-sg.com (result 127.0.0.5 = relay output)
21combined-hib.dnsiplists.completewhois.com (result 127.0.0.2 = unallocated IP address)
19dnsbl.sorbs.net (result 127.0.0.5 = open relay)
19rdts.dnsbl.net.au
18blackholes.uceb.org (union of all results)
17exemptions.ahbl.org (not a blacklist!)
16eli.blackholes.us
16dnsbl.ahbl.org (result 127.0.0.15 = open relay)
15hil.habeas.com
12satos.rbl.cluecentral.net
11navisite.blackholes.us
11epoch.blackholes.us
10owps.dnsbl.net.au
8affinity.blackholes.us
8dialup.blacklist.jippg.org (result 127.0.0.4 = dialup in Japan)
7olm.blackholes.us
7blackholes.uceb.org (result 127.0.0.3 = spam source)
6burst.blackholes.us
6blackholes.uceb.org (result 127.0.0.2 = open relay)
5blackholes.uceb.org (result 127.0.0.6 = spam haven)
5bl.deadbeef.com
4relays.bl.kundenserver.de
4no-more-funn.moensted.dk (result 127.0.0.5 = relay output)
3pajo.blackholes.us
3omrs.dnsbl.net.au
3blackholes.five-ten-sg.com (result 127.0.0.8 = open web form)
3blackholes.five-ten-sg.com (result 127.0.0.10 = virus notices)
2lauderdale.blackholes.us
2dev.null.dk
2combined-hib.dnsiplists.completewhois.com (result 127.0.0.3 = hijacked network)
1ciberlynx.blackholes.us
1dnsbl.rangers.eu.org (result 127.0.0.32 = worm source)
1dnsbl.njabl.org (result 127.0.0.8 = open formmail.cgi)
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 127.0.0.6 = 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
34544(total number of IP addresses whose names were tested, including 427 at SDSC)
14177(union of all domain zones)
11122abuse.rfc-ignorant.org
7907rddn.dnsbl.net.au
4159whois.rfc-ignorant.org (union of all results)
3225whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
934whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
543bulk.rhs.mailpolice.com
524rhsbl.ahbl.org
301bl.deadbeef.com
30porn.rhs.mailpolice.com
26postmaster.rfc-ignorant.org
18dsn.rfc-ignorant.org (zone not intended for this use)
10blackhole.securitysage.com
2bogusmx.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
28735(total number of domains tested, including 296 at SDSC)
8197(union of all domain zones)
3527whois.rfc-ignorant.org (union of all results)
3084whois.rfc-ignorant.org (result 127.0.0.7 = no whois data at all)
2499abuse.rfc-ignorant.org
1216bulk.rhs.mailpolice.com
1107postmaster.rfc-ignorant.org
1021rhsbl.ahbl.org
827dsn.rfc-ignorant.org
443whois.rfc-ignorant.org (result 127.0.0.5 = bad whois data)
427blackhole.securitysage.com
323bogusmx.rfc-ignorant.org
271bl.deadbeef.com
64porn.rhs.mailpolice.com
54rhsbl.sorbs.net (result 127.0.0.11 = domain uses bad address space)
54rhsbl.sorbs.net (union of all results)
50rddn.dnsbl.net.au (zone not intended for this use)
22ex.dnsbl.org
2cart00ney.surriel.com

This document was last updated by Jeff Makey <jeff@sdsc.edu> on 19 November 2004.