MetaDirectory
- The Abusive Hosts Blocking List (AHBL)
Publishes a list of known abusive hosts (open relays, open proxies, spam sources, DoS drones, and more) in various forms including a DNSbl.
- Blacklists Compared
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.
- bl.csma.biz - Spam Blacklist
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 thirty days.
- Blockalert
Provides reports on whether there is recent spam activity within each IP block, especially spamvertised web site addresses. Check if you are sharing your address block with spammers.
- Chinese and Korean Net Blocks
Lists IP blocks of China and Korea for those who want to avoid asian spam.
- Composite Blocking List (CBL)
The CBL is a DNSBL which takes its source data from very large spamtraps, and lists IPs of open proxies and worms/viruses.
- Distributed Server Boycott List (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.
- Drbcheck: Dr. Jørgen Mash's DNS Database List Checker
Lists all DNSbl's (RBL's) and enables users to make a query against all the lists.
- Electric Eye Ultimate Banned List
A manually updated and verified online database of spammers. Provides email address and domain blocklist.
- Five Ten - Local Black Holes
Blacklist 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.
- Mail Abuse Prevention System
MAPS aims to defend the Internet from spammers by educating ISPs and providing real time blocking lists of known spam sources.
- MailPolice RHS-BL
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.
- Not Just Another BlackList (NJABL.ORG)
Spam blocking blacklist of open relays, dial-ups, and direct spam sources.
- 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" target="_blank" of the net.
- Spam Support Permanent Blocklist
A permanent blocklist of spam supporting web hosts and ISPs.
- SpamCop - Blocking List Information
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).
- Spamhaus Block List (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.
- The Spamhaus Project Register of Known Spam Operations (ROKSO)
ROKSO collates evidence on known hard-line spam outfits that have been thrown off Internet Service Providers over three times.
- Spamikaze
Automated spam blocklist system, designed to block spam at the SMTP level.
- UCE Protect Network
Attempt to generate a free realtime black list of spammer IP numbers.
- Whois-Details for Blacklisted Spam Domains
List of domains that have been advertised via spam, with name server, registration date, registrant. This list is updated daily.
