This is a free plug-in for Spamihilator that my cousin wrote a couple of years ago. Although he now uses a gateway-based anti-spam product he still maintains the plug-in code when people send in bug reports or suggestions for new features.

Note: Bug reports and suggestions should now be posted as comments to this post.

DOWNLOAD “A BLACKLIST FILTER” V0.9.0

Note that the next version will be v0.9.7. So far nearly 100 hours have been spent writing new code to bring Blacklist Filter from v0.8.0 to v0.9.7 !!! This is a tremendous effort and doesn’t include the hundreds of hours spent developing the original plugin!

The new version 0.9.7 might include an advanced caching option, far beyond what was present in the briefly released v0.9.0; many, many more bug fixes; many performance improvements, and greatly improved spam detection capabilities. What is included depends entirely on how much time can be spent on writing free code as opposed to working on other project to earn money. This is up to you, the thousands of users of this plugin!

We would greatly appreciate any donation you can send to help fund continued development of some truly exciting new features. Please donate via PayPal using the Donate button below! Donors can also receive early releases of future versions of this and other plugins!

Latest version: Blacklist Filter v0.9.0 (released Dec 2006)

Feature Summary

  • Filters all IP addresses listed in each message header
  • Filters all URLs listed in each message body
  • Decodes all encoded URLs
  • Checks all IP addresses and URLs against third-party blacklist service databases
  • Filters out all email with blacklisted IP addresses or URL domain names or spoofed addresses
  • Caches DNS blacklist queries to enhance performance
  • Automatically tunes its performance based on statisitical tracking
  • Automatically disables blacklist servers when they cease to exist or when they become unreachable
  • Shows which blacklist services work better than others based on the spam you receive
  • Provides user-defineable domain name whitelists and blacklists that use pattern matching in URLs to act as exceptions that override third-party blacklist service databases
  • Filters out all email that contain domains that match user-defined blacklist exception patterns
  • Passes through all email that contain domains that match user-defined whitelist exception patterns
  • Allows the user to specific a list of complete or partial IP addresses that will not be checked against blacklists when parsing email headers. This features allows you to bypass blacklist checking for mail servers that might inadvertantly become listed in a blacklist database.
  • Allows the user to define the spam probability percentage value returned by the plugin.
  • Allows the user to determine whether a potential spam message is moved to the Recycle Bin or the Training Area.
  • Comes with complete documentation in the help file

Version history:

  • v0.9.0:
    - fixed bug where some email headers caused false positive detection of spoofed addresses;
    - fixed a problem where certain chars in email headers might cause inaccurate detection;
    - fixed bugs in the “Test Server” option that tests blacklist servers for operability;
    - added user-requested feature that allows specific IP addresses to be excluded from blacklist checks
    - added user-requested feature to allow caching of DNS blacklist queries for faster performance
  • 0.8.0 - fixed a minor problem where IP addresses prefixed by an @ sign in mail headers were not parsed properly; fixed a broken link in the Help/About section
  • 0.7.9 - added user-requested feature to select whether potential spam is sent to the Recycle Bin or Training Area
  • 0.7.8 - adjusted URL parsing and log file viewer
  • 0.7.7 - initial public release


If you’d like to donate to help support plugin development then your support will be greatly appreciated!

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