Relay Database (ORDB) -
http://www.ordb.org/
A validated database of mail servers that
permit third-party relay. Also in Francais,
Nederlands and Dansk.
Composit
Blocking List (CBL) - http://cbl.abuseat.org/
The CBL is a DNSBL which takes its source
data from very large spamtraps, and lists
IPs of open proxies and worms/viruses.
OpenRBL
DNS Lookup - http://openrbl.org/
Enter an IP address or a hostname to find
out which blacklists (if any) list it.
Drbcheck: Dr. Jorgen Mash's
DNS Database List Checker - http://moensted.dk/spam/
Lists all DNSbl's (RBL's) and enables users
to make a query against all the lists.
MAPS Realtime Blackhole
List (RBL) - http://mail-abuse.org/rbl/
Lists email sites which have refused to limit
their relaying, leaving the potential for
their use as spam gateways.
Relays.visi.com - http://relays.visi.com/
Blacklist of open relaying mail servers that
have recently transmitted spam.
Distributed Server Boycott
List (DSBL.org) - http://www.dsbl.org/
This list contains email servers which are
non-secure and potentially servers with dumb
and/or malicious users. It is purely composed
of data DSBL receives; DSBL should never send
out data by itself.
Spamhaus Block List (SBL)
- http://www.spamhaus.org/sbl/
All IPs on the SBL belong to known spammers,
spam gangs, or spam support services. The
SBL includes IPs from both the ROKSO database
and IPs of spam services listed in the Spamhaus
database.
Mail Abuse Prevention System
- http://mail-abuse.org/
MAPS aims to defend the Internet from spammers
by educating ISPs and providing real time
blocking lists of known spam sources.
The Spamhaus Project Register
of Known Spam Operations (ROKSO) - http://www.spamhaus.org/rokso/
The Spamhaus Project's Register Of Known Spam
Operations (ROKSO) Database. ROKSO collates
evidence on known hard-line spam outfits that
have been thrown off Internet Service Providers
over three times.
Spam Prevention Early Warning
System (SPEWS) - http://www.spews.org/
SPEWS maintains a list of known spam sources
and spam friendly hosts so that e-mail can
be rejected from these problem sites.
rfc-ignorant.org - http://www.rfc-ignorant.org/
The home for domains who don't play by the
rules. A number of lists (at present "dsn",
"abuse", "postmaster",
"whois" and "ipwhois")
which contain domains or IP networks whose
administrators choose not to obey the RFC's,
the building block "rules" of the
net.
SpamCop - Blocking List
Information - http://spamcop.net/bl.shtml
This list contains IP addresses which have
been reported to SpamCop as carriers of spam
(source of e-mail or verified, open relay).
Some of these reports now come from spamtraps
(email addresses used strictly to receive
spam).
MAPS Relay
Spam Stopper (RSS) - http://work-rss.mail-abuse.org/rss/index.html
The RSS is a list of email relays which have
been used to send spam, for use in blocking
spam by blocking mail which have gone through
those sites.
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