Open Source Server Operating Systems Email Software

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 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. 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.

The bogofilter package implements a fast Bayesian spam filter as suggested by Paul Graham in "A Plan For Spam" <http://www.paulgraham.com/spam.html>. It is written in C. Supported platforms: Linux, FreeBSD, Solaris, OS X, HP-UX, AIX, RISC-OS, ...

Trojitá, a Qt IMAP e-mail client

Mail Alert Simple Mailer is a simple command-line utility designed for IT administrators for sending e-mail from Microsoft Windows OS. It can be executed from command line, Windows batch file or PowerShell scripts. My main reason for writing this software was to handle events generated by Dell OpenManage Server Administrator (OMSA), APC PowerChute and Windows Events to send hardware status and alerts like temperature alerts, UPS battery status, powerline status and RAID controller alerts from monitoring software. It can be used with any other software where you can configure external application to be executed when specific event occurs. Mail Alert Simple Mailer supports SSL and STARTTLS protocols, so it is compatible with many free e-mail providers like GMail, Hotmail, etc. Unlike other simple command line tools it supports ISO-8859-1, ISO-8859-2 and UTF-8 code pages for national characters. Mail Alert Simple Mailer encrypts SMTP password in configuration file.

Fast, intelligent, automatic spam detector using Paul Graham style Bayesian analysis of word counts in spam and non-spam emails. Filtering adapts to personal tastes automatically. No manual rule creation required. Intended for use with procmail, maild

MultiMail is an offline mail packet reader for Unix and other systems. It currently supports the Blue Wave, QWK, OMEN, OPX and SOUP formats. It has a full screen, color user interface, built with the curses library.

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.

OpenChange is a portable Open Source implementation of Microsoft Exchange server and Exchange protocols. It provides a complete solution to interoperate with Microsoft Outlook clients or Microsoft Exchange servers. OpenChange client-side library is used in existing messaging clients and is the solution in new projects to communicate natively with Microsoft Exchange and Exchange-compatible servers. OpenChange server is a transparent Microsoft Exchange server replacement using native Exchange protocols and does not require any plugin installation in Outlook.

SPAMGrinderProxy is an SMTP and POP3 spam filter that runs as a service on Windows XP/2K. It works with any server or client, scanning each message for SPAM and flagging those that are. It can interoperate with SpamAssassin or use its own filters.

Qparser is a perl script that reads the output of a sendmail print queue and summarizes the data.

This package contains an Open Source plug-in, for use with Open Source or commercial sendmail MTAs, which implements and enforces the merged Caller-ID/SPF specification from the IETF MARID working group, currently dubbed "Sender-ID".

An advanced qmail distribution based on qmail-sql which has SMTP, SMTPS, POP3, POP3S, IMAP, IMAPS services, a content scanner, spoofing protections, SMTP AUTH support, SMTP-after-POP/IMAP, PHP5 API, SPF support and much more...

ORSEE is a web-based Online Recruitment System for Economic Experiments. Key features: attribute query selection, random recruitment, experiment calendar, reputation system, automated mailing, pdf output, complete documentation.

This is the port of the 386bsd vacation program to Linux. Vacation is the automatic mail answering program found on many Unix systems.

Multiuser BBS/Internet Server Software for multiple platforms including Windows and Linux (legacy versions maintained for DOS and OS/2). Multithreaded modular C/C++ project that includes Telnet, FTP, and Mail servers and support for popular DOS doorgames.

Tools for a mail delivery service, including LMTP and POP3 servers and also getpwnam() emulation. Mail is stored in Maildir++ format (qmail plus courier extensions as soft quota and subfolders). User defined filter and virtual domains are supported.

dk-milter consists of two parts: A milter-based application (dk-filter) which plugs in to Sendmail to provide DomainKeys service, and a library (libdk) which can be used to build DomainKeys-compliant applications or MTAs. See the home page for details.

Java program that creates an SMTP message and sends it off. It can be used to test SMTP functionality as well as security. This test SMTP at the application level. Requires Java 6.

Eclipse Mail is a fork of Interlink Mail and News made for Windows XP and runs on IA-32 i686 platforms. Some advantages over upstream and roytam1's mailnews are more optimizations and better interoperability with upstream. (using SQL storage intead of DBM)

FreeYourEmail frees you of: proprietary APIs, HTML web pages, Mail clients, etc... It can incorporate multiple email accounts (GroupWise, Yahoo!, etc...) and provide a single download point. It can offer other information: Weather, Stock quotes, etc..

GnoGetIt is a group of PERL scripts that check a POP3 e-mail account and reply with information based on the email received. An example would be stock quotes or weather information. If interested, send a message to r15@users.sourceforge.net

Multi user address book application accessable through the web. Store, edit, search and export addresses, phone numbers, … using a web browser. Code moved to https://bitbucket.org/icemac/icemac.addressbook Documentation see https://icemacaddressbook.readthedocs.io/en/latest/ New releases (after 6.0.2) see https://pypi.org/project/icemac.addressbook/#history

Rolodap is a LDAP based contacts directory/manager. It uses a shared directory, but presents itself to users as a series of individually defined address books.Simplicity of end use is a primary goal. Rolodap integrates with emailers that support LDAP.

A web-based helpdesk ticketing system. It adopts a more effective ticket sorting/ranking method instead of the cumbersome "assign/completed". More: http://www.upoint.info/cgi

STS - SupportTicketsystem and Knowledgebase - auto response, Mail - parsing , mysql or mssql, user can rate tickets which where published in the knowledgebase for professional use user groups, admin - groups, ticketstatus - support iv'e read message