Open Source Server Operating Systems Email Software

Email Software for Server Operating Systems

Browse free open source Email software and projects for Server Operating Systems below. Use the toggles on the left to filter open source Email software by OS, license, language, programming language, and project status.

  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
    Try for Free
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 1
    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server

    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 2.8.1 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.
    Leader badge
    Downloads: 43,984 This Week
    Last Update:
    See Project
  • 2
    Trojitá, a Qt IMAP e-mail client
    Leader badge
    Downloads: 132 This Week
    Last Update:
    See Project
  • 3

    bogofilter -- Fast Bayesian Spam Filter

    Fast Bayesian spam filter along lines suggested by Paul Graham

    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, ...
    Leader badge
    Downloads: 67 This Week
    Last Update:
    See Project
  • 4
    Mail Alert Simple Mailer

    Mail Alert Simple Mailer

    Mail Alert Simple Mailer

    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.
    Leader badge
    Downloads: 11 This Week
    Last Update:
    See Project
  • Keep company data safe with Chrome Enterprise Icon
    Keep company data safe with Chrome Enterprise

    Protect your business with AI policies and data loss prevention in the browser

    Make AI work your way with Chrome Enterprise. Block unapproved sites and set custom data controls that align with your company's policies.
    Download Chrome
  • 5
    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
    Downloads: 6 This Week
    Last Update:
    See Project
  • 6
    MultiMail Offline Reader
    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.
    Leader badge
    Downloads: 11 This Week
    Last Update:
    See Project
  • 7
    Eclipse Mail

    Eclipse Mail

    eMail is a fork of Interlink for IA-32 i686 with more optimizations.

    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)
    Downloads: 9 This Week
    Last Update:
    See Project
  • 8
    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.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    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.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 10
    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".
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    galng.tcl is a report viewer/tool for galaxy (primary for galaxyng) pbem game. written entirely in tck/tk 8.0. play galaxy! have fun!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    Jiania is power CMS,it can easy to use dynamic web content management system written in PHP5. jiania cms use adodb database libratry and Smarty template most important thant use power jpgraph and let's user can easy report anything you need.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    LIMeTool (pronounced like the fruit), is intended to be a simple and easy interface for managing accounts on an integrated Sendmail/LDAP/Cyrus IMAP installation. It's written in PHP and is realitively easy to configure and expand.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Aggregate RSS/Atom feeds trough your email. With Newpipe you can read, organize and archive news feeds with your current mail client, without the need for a separate program.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Qparser is a perl script that reads the output of a sendmail print queue and summarizes the data.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    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
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    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
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    AfterLogic WebMail Lite .NET
    Free and easy-to-use webmail script with AJAX interface. Supports POP3/IMAP accounts, SMTP, SSL. Users can check and send mail, use address book. Skins, non-English languages, UTF-8. MS SQL/MySQL/MS Access backends supported.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Sendmail Milter written in C to filter out spam.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Simple BSmtp (Batch-Smtp) file processor with built-in MajorDomo, which can be used stand alone or as filter inside of an Smtp server (here e.g. in Weasel).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    BSpam is a perl implementation of Paul Graham's Bayesian Spam filtering system: A Plan For Spam.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Fast Haar-like object detection develop to CELL processor based plataform. This is reimplementing stump based algorithm of OpenCV library.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24

    CRM114 MILTER

    CRM114 milter for sendmail

    This is a milter which scans emails with CRM114
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    CookMail is a powerful HTML email form CGI handler. It provides custom HTML output and email messages without the hassle of programming.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next