Open Source Python Email Spam Filter Software

Bayesian anti-spam classifier written in Python.

This program is an email antivirus/antispam gateway. It is an interface to the postfix or sendmail (or any other smtpd), which runs antivirus and/or spamchecker. Its modular architecture can use any combination of antivirus/spamchecker according to co

Active Spam Killer (ASK) protects your email account against spam by confirming the sender's email address before actual delivery takes place. The confirmation happens by means of a "confirmation message" that is automatically sent to all "unknown" users

RadicalSpam Virtual Appliance takes full solution of RadicalSpam Community Edition , pre-installed in a OVF virtual machine ( Open Virtual Format ) compatible with the best virtualization platforms on the market , including VMware ESX Server. More information : http://www.radical-spam.org

Sieve script editor for Gnome, easy to use.

sk_filter is a crossplatform mail filter, written in Python that aims to reduce connection costs for dial-up users. It takes a diffrent approach to filtering, and that is to filter mail based on its size, rather than content. For dial-up this is the only

A.I. security app. Development ceased.

Active Spam Killer for Windows (AfW) is a challenge/response spam filtering system for the Windows platform. Based on ASK for Linux by Marco Paganini, this project adds a POP3 client/server wrapper and web administration, as well as Windows compatibility

POP3, APOP and IMAP4 (with or without SSL) MDA with spam filtering and featuritis

This is an open-source implementation of Elegitimizer.com's "elegitisigner" specification. An easily implemented validation mechanism to help eliminate illegitimate e-mail or “Spam.” Elegitisigner features a well documented “web of trust” model.

FOSSWALL project is now merged under the Open Source Security Network (OSSN) project. Open Source Security Network is a community who are dedicated to working in different aspects of IT Security, Network Security, Application Security, Email Security etc

Protect your company's email and browsing with your GoodCrypto private server. * Protects email metadata and resists traffic analysis * Automatic encryption, decryption, and key management * All private keys stay on *your* server * Users don't change their email or browser software * Blocks web malware * Runs on your private server * Completely decentralized

Greylisting policy daemon for Postfix, written in Python, with SQL support

A system for filtering messages from your IMAP inbox on-demand. Filters are defined in an XML file. Matching messages can be moved, copied, or deleted. This is all independant of your choice of email client, as long as you use IMAP.

JunkMatcher: A Cocktail-styled Spam Filter for Mail.app in Mac OS X

Konfidi is a trust framework that uses topical trust values from a social network of authenticated people. When you receive an email from someone you do not know, but he/she is in the network, Konfidi will compute an inferred trust value for you.

MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project https://github.com/SpamTagger [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...)

Mailchecker will (in time) check mail for 'safe' content. 'unsafe' content (e.g. attachments that may contain viruses) will be stopped or converted to 'safe' formats.

You can filter your email using a bayesian like statistical method. Written in 100% Python, easily extensible, and is used as a pop3 proxy to reduce the intrusion on your system.

Postfix Log Parser in Python is a log analysis tool written in python language to get statistic reports and detect anomalous behaviours on a mail server based on Postfix and Cyrus

Philter is a mail filter written in Python to sort mail in a Qmail style Maildir on Linux. It is used in association with a mail fetching tool like getmail. A properties file is used to setup the basic configuration.

Poprox is a POP3 and SMTP transparent filtering proxy written in Python that does virus scanning by using libclamav. It is comparable to P3Scan.

pympsort, A Python Mail Processing and Sorting program. Takes mail from Standard in and reads a config file, delivers mail into Maildir format. Works great with Qmailg

Python API for Sendmail Milters. Related modules provide features such as content filtering, SPF, and reputation tracking. Changes are posted first to https://github.com/sdgathman/pymilter and related repos.

PythonPal is an interace to write plugins in python for the famous anti spam software spampal.