Anti-Spam SMTP Proxy Server implements multiple spam filters
The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.6.1 build 17355. An linux and a freeBSD based OVA of ASSP V2 are also available for download. An quick fixup build 2.6.1 18028 is available. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.
POPFile is an email classification tool with a Naive Bayes classifier, POP3, SMTP, NNTP proxies and IMAP filter and a web interface. It runs on most platforms and with most email clients.
Postfix greylisting policy service with auto-white-listing written in Perl with SQL database as storage backend. Greylisting stops 50 to 90 % junk mails (spam and virus) before they reach your Postfix server (saves BW, user time and CPU time).
Very small utilities that encode/decodes files into/from base64 respectively. Completely written in Pure Pascal (from version 2) they should compile in every Pascal compiler known to man.
Classifier4J is a java library that provides an API for automatic classification of text. The default (and only current) implementation of this API is a Bayesian classifier. This library can be used for multiple purposes - as a spam filter or a blog cl
DKIMproxy is an SMTP-proxy that implements the DKIM and DomainKeys standards, to sign and verify email messages using digital signatures and DNS records. It can be used to add DKIM support to nearly any existing SMTP mail server.
Qmail-Scanner Statistics (QSS) uses the Qmail-Scanner Logfile to generate daily, monthly, and yearly statistics. It also shows a complete list of viruses stopped by Qmail-Scanner, the top five domains from which the viruses came, as well as the countries
AMaViS is a script that interfaces a mail transport agent (MTA) with virus scanners.
Had it with junk mail? Annoyance-Filter sifts mail you wish to read from junk arriving in your mailbox by an adaptive process which gives priority to mail you're interested in reading and evolves to block cleverly disguised junk mail.
Bounce Mail Handler (BMH) is a toolkit to help webmasters handle bounce-back mails in standard DSN (Delivery Status Notification, RFC-1894) or via email body when DSN unavailable. Regular expression rules are separate from the main script and upgradable.
Converts Outlook .mbx and .dbx files into standard RFC822 mail files. Mailboxes from newer versions of Outlook and Outlook express may not be supported.
Sieve is a mail filtering language standardized as RFC 3028 / RFC 5228 and its extensions. libSieve provides a simple, clean API for parsing and executing Sieve scripts. Code is on GitHub: http://github.com/sodabrew/libsieve
Spamato is a spam filter system that combines several anti-spam techniques, from which thousands of users benefit. It is available as an add-on for Thunderbird and Outlook, and as a stand-alone proxy for other email clients. IMAP and POP are supported.
The OpenPEC project is a collaborative effort to develop an Open Source Certified E-Mail System (in italian: Posta Elettronica Certificata or PEC) as requided by the Italian law. See the DigitPA (CNIPA) site for details (http://www.cnipa.gov.it)
Yet another e-mail scanner, emailscan monitors in coming mutlipart mail messages and checks for file type, file names, and virus scan. It also works both using procmail for local deliver and can be invoked when mail is relayed.
SmartSieve is a web based graphical user interface for creating and managing sieve scripts for mail filtering and vacation messaging on a cyrus imap mail server. Written in PHP, SmartSieve is easy to configure and use.
mail2nntp is a bridge from email realm to the newsgroup one. It can be used to replicate a mailing-list on a newsgroup server. It is a generic toot, using NNTP network commands.
Public domain portable Naive Bayesian message filter aimed towards C programmers.
The MFlow project aims to create a modular messaging client in Java. Its architecture should make it as easy as possible to add support for new protocols, as well as maximizing configurability.
This plugin provides an interface in SquirrelMail where users can create and manage their mail filters for use on systems that implement filtering solutions that run on the server at delivery time (e.g., maildrop, procmail, etc.).
This is a small and easy to use java smtp proxy to scan emails. !!! This project is still under construction. Next days i will release a manual und more documentation.
This is a filter for Postfix written in PERL wich adds one or more file attachment to mails. I have used it succesfully with altermime to add pictures to outgoing mails, allowing to incorporate html disclaimers and signatures with corporative logos.
Anti-Bot Form Mailer is a PHP script that helps webmasters reducing spam received via their contact or support form.
A multiuser spam filter for IMAP servers using a simple statistical method. Training is done within any imap mail client. You simply move the mails into the right folders to train the tool. Can be installed server or client side. Using PHP(imap) + Mysql.
Pure Perl implementation of the Milter protocol used by Sendmail, including drop-in replacement for the Sendmail::Milter interface.