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

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  • 1
    SpamAssassin for Win32 is a free and powerful anti-spam filter for Windows. Includes a resident daemon for mail servers and a user-friendly personal spam filter that works with any POP3 account and any email client.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    SpamPal is a mail classification program that can help separate your spam from the mail you really want to read. SpamPal includes support for POP3, IMAP4 and SMTP accounts and can be extended by dozens of plugins and tools and is available in 6 languages
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    Plugins for popular mail applications allowing the ability to learn/report spam messages to SpamAssassin via the spamd protocol right from your inbox.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    SpamIntelligence brings SpamAssassin 3 and Clam AntiVirus to Outlook
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 5
    CaMath is a common model of "Cost Accounting",written by C++ and C#.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Duckling
    The Collaboration Environment, supporting e-Science, is a comprehensive resource sharing and collaboration platform specific for research group.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    The goal of this project is to develop a very simple SMTP server that responds to SMTP requests and makes received messages available for query at a later time. All useful features for a SMTP server that can be used in an automated testing suite.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A Windows program that you can install on a server. It will monitor your event log and email you when errors occur. You can specify strings to ignore to weed out common errors.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10
    FilterBadRecruiters

    FilterBadRecruiters

    Google Apps Script to send third party recruiter email to spam

    FilterBadRecruiters is a Google Apps Script that processes new messages looking for unwanted email from known third party recruiters. When a match is found, a reply is sent informing the sender that the message is being reported as spam and will not be read. The script then logs matches to a spreadsheet and updates a pie chart displaying what percentage of these type of messages were sent from each domain.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    FusionGW is a cutting-edge open-source collaborative software suite. The goal of the FusionGW project is to build a framework to develop enterprise collaborative software under an open-source license.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    GreenMail is an intuitive and easy-to-use test suite of email servers for testing purposes. Supports SMTP, POP3, IMAP with SSL socket support, and configurable user accounts and credentials. All in 100% Java. WE'VE MOVED TO GIT HUB: https://github.com/greenmail-mail-test/greenmail
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    It is a project about open source bbs component. We apply to any environment, for example a project based struts or spring or hibernate. We are going to open this source.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    This is the Home Page for the James Administration Console, an administration utility for the James Java Enterprise Email Server. The console aims to be fast, easy to use, and completely 100% Java, just like the server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15

    Jnestor

    Jnestor is another majordomo in java

    Jnestor is a majordomo developed in java: it can reads an IMAP/POP3 folder (email folder), identifies the elements in it and process them, transforming them as Mantis issues. The software is still experimental, but it passed succesfully the last stages of testing and I hope I will release a stable version soon.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Java parser for MIME message streams. The low-level streaming parser uses a callback mechanism to report parsing events (similar to SAX). Messages may also be parsed into a JavaMail MimeMessage-like structure using temporary files for large attachments.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Mail Service is a restful email sending service for Apache httpd. It consists of mod_sendmail to send email, processdsn to process delivery status notifications, and mod_processdsn to make the delivery status available via a rest interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Mammail 1.0

    Mammail 1.0

    Email client written in C# .NET; fast and smart, 1 button push mailing

    Every now and then we need to e-mail our friends, family and more. But the available suites are not only complicated but also time consuming. They are mainly targeted for business purposes like Microsoft Office Outlook, or Windows Live Mail. Those of you who use such mail clients definitely know that these programs have got a jerky performance as well as keeps you waiting for a minute or so just to synchronize(send/receive) mails from your mail accounts. What if I just need to send a mail in a couple of seconds to my friend or to a mailbox for a subscription closing in a minute. Well, here comes the time complexity. We need faster client-side apps for mailing. I have understood the need of such a software and I’m glad to present it before you.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Microstream is a open platform with open architecture and open functionality to build up information systems .
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Mock objects for JUnitTests for common network services: http(s), SMTP and POP3. The focus was to easily have the services return defined errors or predefined documents independent of application level security and sophisticated data-store.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    NMail provides an SMTP client & server along with an IMAP4 server; all are written in C#.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    SpamAssassin is now a part of the Apache Software Foundation. Our code, web site, and mailing lists (in other words, everything) are now part of the Apache SpamAssassin project. All code that remains here is old unsupported and not Apache.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23

    ThunderMailConnector

    (주)앤드와이즈의 썬더메일5.0 automail 라이브러리

    (주)앤드와이즈의 대량메일발송 솔루션인 썬더메일5.0( http://www.thundermail.co.kr/thundermail/ ) 의 automail 기능을 이용하기위한 connector java 라이브러리.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    icarusWebMail is an open source WebMail, with POP3 and IMAP mailbox support, also supports APOP POP3/SSL POP3/TLS IMAP/SSL contacts lists from LDAP, anti-spam integration, Internationalization (by now es, en, fr), Filters, Drafts, Sent-Folder, Signature.
    Downloads: 0 This Week
    Last Update:
    See Project
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