Postfilter is a Perl filter for Internet Net News (innd) that checks all messages sent by local users searching for spam and invalid content. Although it's designed for large sites that need a complex tool, it could also be used by local or private servers.License: BSD License (original)Changes:
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.