Bogofilter is a mail filter that classifies mail as spam or ham (non-spam) by a statistical analysis of the message’s header and content (body). The program is able to learn from the user’s classifications and corrections.
Bogofilter is or can be integrated with graphical mailers, such as KDE’s KMail, GNOME’s Evolution or Claws Mail (formerly known as Sylpheed-Claws), or it is run by a mail delivery agent (maildrop, procmail) script to classify an incoming message as spam or ham (using wordlists stored by BerkeleyDB).
In its normal mode of operation, it takes an email message or other text on standard input, does a statistical check against lists of “good” and “bad” words, and returns a status code indicating whether or not the message is spam. Bogofilter is designed with a fast algorithm, and uses the Berkeley DB for fast startup and lookups.
To classify messages as ham (non-spam) or spam, Bogofilter needs to learn from your mail. To start with it is best to have collections (that are as large as possible) of messages you know for sure are ham or spam.
This mail filter is free and open source software.
- Processing for plain text and HTML.
- Supports multi-part MIME messages with decoding of base64, quoted-printable, and uuencoded text and ignores attachments, such as images.
- Statistical technique is known as the Bayesian technique. Bogofilter is based on Bayes’ theorem and uses it in the initial calculations and other statistical methods later.
- Uses Gary Robinson’s geometric-mean algorithm with the Fisher’s method modification to classify email as spam or non-spam.
- Cross-platform support – runs under Linux, FreeBSD, Solaris, OS X, HP-UX, AIX, RISC OS, SunOS, OS/2 …
Support: FAQ, GitLab Code Repository
Developer: David Relson, Matthias Andree, Greg Louis, and a group of open source volunteers (original version written by Eric S. Raymond)
License: GNU General Public License Version 2
|New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux.|
|The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions.|
|Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information.|
|Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS.|
|Linux Around The World showcases events and usergroups that are relevant to Linux enthusiasts.|
|Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal.|
|Saving Money with Linux looks at how you can reduce your energy bills running Linux.|
|Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users.|
|Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.|
|Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.|
|Now and Then examines how promising open source software fared over the years. It can be a bumpy ride.|
|Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.|
|Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery.|
|Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers.|
|Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series.|
|These best free books accelerate your learning of every programming language. Learn a new language today!|
|These free tutorials offer the perfect tonic to our free programming books series.|
|Stars and Stripes is an occasional series looking at the impact of Linux in the USA.|