Postfilter 0.8.1

Postfilter is a perl filter for Internet Net News.
Postfilter is a perl filter for Internet Net News (innd) which checks all messages sent by local users searching for spam and invalid contents.

Although Postfilter is designed for large sites that need a complex tool, Postfilter could by used also by local or private servers.

Postfilter is released under the terms of BSD License.

Main features:

  • A powerful banlist: rules can be based on every header and each article could be rejected, silently discarded, tracked throught syslog or saved for further inspection
  • A content-based filter. A score could be assigned to every regex; when the body matches an expression, the assigned score is added to the total. If an article exceeds the maximum allowed score, it's rejected by the script.
  • A fine regulation of clients' activity. Postfilter allows to set a max number of articles, bytes, groups, followups, crossposts, hierarchies and errors per time. A second shorter interval is also setable to avoid floods. All these rules can be applied to IP, domain (level n-1) or userid.
  • Several built-in syntax checks that scans the headers searching for errors commonly made by spammers.
  • A white list that allows to exclude from the check every article that matches a regular expression or every article that includes a predefined header.

last updated on:
December 27th, 2009, 18:11 GMT
license type:
BSD License 
developed by:
Postfilter Team
ROOT \ Office \ News/Diary
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What's New in version 0.7.6
  • Postfilter now supports DNSLBL, is able to block all connections that come from TOR without external programs, and is able to correctly process articles that come from stdin.
  • Users can include their own rules without touching the source code.
  • Several bugs were fixed.
read full changelog

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