Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam.
It allows you to ignore IMs unless the sender is in your Buddy List, the sender
is in your Allow List, or the sender correctly answers a question you have
amavis-stats is a simple AMaViS statistics generator based on rrdtool.
It produces graphs of clean emails, spam emails and infected emails
broken down by virus, from amavis log entries. RRD files are created
and updated by a perl script run from cron. Graphs are generated by
a php script and viewed with a web browser.
amavisd-milter is a sendmail milter for amavisd-new version 2.2.0 and above
which use the new AM.PDP protocol. Full amavisd-new functionality is
available, including adding spam and virus information header fields,
modifying Subject, adding address extensions and removing certain recipients
from delivery while delivering the same message to the rest.
Maia Mailguard is a web-based interface and management system based on the
popular amavisd-new e-mail scanner and SpamAssassin. Written in Perl and PHP,
Maia Mailguard gives end-users control over how their mail is processed by
virus scanners and spam filters, while giving mail administrators the power
to configure site-wide defaults and limits.
HTML_Crypt provides methods to encrypt text, which can be later be decrypted
This is very useful to prevent spam robots collecting email addresses from your
site, included is a method to add mailto links to the text being generated.
Minion is a job queue for the Mojolicious real-time web framework with support
for multiple backends, such as DBM::Deep and PostgreSQL.
A job queue allows you to process time and/or computationally intensive tasks
in background processes, outside of the request/response lifecycle. Among those
tasks you'll commonly find image resizing, spam filtering, HTTP downloads,
building tarballs, warming caches and basically everything else you can imagine
that's not super fast.
gnubiff is a mail notification program that checks for mail, displays
headers when new mail has arrived and allow to read first lines of
It relies on the GNOME and GTK libraries but can be compiled and
used with or without GNOME support. Supported protocols are pop3,
apop, imap4, mh, qmail and mailfile.
Furthermore, gnubiff is fully configurable with a lot of options
like polltime, poptime, sounds, mail reader, mailbox names, etc.
and can also filter spam.
Greylite is a SPAM filter with exceptional effectiveness and without false
positives. It combines natively with qmail and works as a proxy for any SMTP
It implements a modified greylisting algorithm that improves the filtering
effectiveness and minimizes the delay drawbacks associated with the standard
It can be tuned to recognize suspicious clients and reject their attempts
multiple times, reaching filtering rates of over 99% without false positives.
Greylite is easy to setup and maintain, and it is small and fast.
junkfilter is a set of interlaced procmail scripts whose purpose is
to filter spam, or junk email. It requires nothing other than
procmail, and takes no overt action upon classifying a message. All
action is left up to the user, although examples are provided.
numerous header checks
a phrase checker for the message body
an address filter
a dialup filter
a domain filter
an IP filter
This is a port of Emmanuel Dreyfus' milter-greylist.
Grey listing is a wonderful spam filtering technique, which uses a behavior
trick: spammers never resend a message when they get a temporary error,
whereas real MTA do. The idea is to refuse any mail on first attempt, and
accept it after some time has elapsed.
milter-greylist is a stand-alone milter written in C that implement grey