 | 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. |
 | 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 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. |
| Electric Eye Ultimate Banned List
A manually updated and verified online database of spammers. Provides email address and domain blocklist. |