The Abusive Hosts Blocking List
(AHBL) - http://www.ahbl.org
Publishes a list of known abusive hosts (open relays,
open proxies, spam sources, DoS drones, and more)
in various forms including a DNSbl.
MAPS Dial-up User List (DUL) - http://mail-abuse.org/dul/
An IP blacklist of dialup-using "stealth" spammers
and email trespassers.
Spambag.org - http://www.spambag.org/
Personal (DNSBL) list of abusive networks that the
author blocks from sending mail or accessing his web
bl.csma.biz - Spam Blacklist - http://bl.csma.biz/
As a public service, McFadden Associates maintains
a free DNSBL blacklist. Anyone sending SPAM into their
mail filters is automatically added for a period of
Five Ten - Local Black Holes - http://www.five-ten-sg.com/blackhole.phpBlacklist
that includes dialup equivalent ip addresses, individual
spam sources, netblocks that refuse to remove spammers,
bulk mailers that don't require confirmed opt-in,
output servers from multi-stage open relay chains
and single stage open relays not listed on ORBZ.
Blacklists Compared - http://www.sdsc.edu/~jeff/spam/Blacklists_Compared.html
Weekly reports of DNS blacklists lookups of IP addresses
(and reverse DNS lookups) that made SMTP connections
to the San Diego Supercomputer Center on that week.
Useful for getting a grasp of the size of the various
blacklists. Maintained by Jeff Makey.
ip4r (DNSBL-style) DNS lookups -
List, in table form, of blacklists. Includes table
with the name of the blacklists, their lookup domains,
the IP that is returned in case of a match and a description.
The DNSBL countries.nerd.dk - http://countries.nerd.dk/
An IP-to-country DNS mapping service so you can choose
to block a specific country or countries.
Spam & Open Relay Blocking System
(SORBS) - http://www.dnsbl.sorbs.net/
Lists Open Relays and Open Proxies (Open HTTP Proxy
Servers and Open SOCKS Proxy Servers). SORBS only
scans a host when it attempts to send mail to one
of the feeder servers.
DNS Real-time Black List (DNSRBL)
DNSRBL publishes, via DNS, a list of IP addresses
that are either direct SPAM sources or Dial-up (dynamic
address) pools which would never be a source of non-SPAM
AntiSpam DNSBL - http://antispam.or.id
Identifies spam sources - whether intentional or not
- at the time they are sending spam. Not before and
Providers that let users spam selwerd.nl,
selwerd.cx, flits.rug.nl and other spamtraps and ignore
reports, host spamvertized pages or pages selling
spamware get listed. Using xbl.selwerd.cx risks missing
a lot of legitimate e-mail.
RHS-style lists of domains which
have sent spam to MailPolice customers. Currently
divided into two lists, bulk senders - domains associated
with bulk mail - and pornography - domains associated
with sending and hosting pornographic content.
Blitzed IRC Network (OPM.BLITZED.ORG)
A dnsbl of open proxies (HTTP, Socks and wingate),
populated by IRC connection scanners and spamtraps.
Whois-Details for Blacklisted Spam
Domains - http://www.joewein.de/sw/bl-log.htm
List of domains that have been advertised via spam,
with name server, registration date, registrant. This
list is updated daily.