Email Clients for Server Operating Systems

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

  • Outbound sales software Icon
    Outbound sales software

    Unified cloud-based platform for dialing, emailing, appointment scheduling, lead management and much more.

    Adversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency.
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    Simplify Purchasing For Your Business

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  • 1
    Trojitá, a Qt IMAP e-mail client
    Leader badge
    Downloads: 99 This Week
    Last Update:
    See Project
  • 2
    OpenChange Project

    OpenChange Project

    Microsoft Exchange compatible server and client libraries

    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.
    Downloads: 25 This Week
    Last Update:
    See Project
  • 3
    YAM - Yet Another Mailer

    YAM - Yet Another Mailer

    YAM - The E-mail client for Amiga computers

    YAM (short for Yet Another Mailer) is a commonly used MIME-compliant Internet mailer written for AmigaOS computers. It supports POP3, SMTP, TLSv1/SSLv3, multiple users, PGP, hierarchical folders, filters, a configurable GUI, an ARexx interface and more...
    Downloads: 35 This Week
    Last Update:
    See Project
  • 4
    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.
    Downloads: 17 This Week
    Last Update:
    See Project
  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
    Learn More
  • 5
    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: 1 This Week
    Last Update:
    See Project
  • 6
    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
  • 7
    Draconis is a suite with several Internet Programs for the ATARI platform. It contains clients and drivers for a sucessful internet access.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    EGroupware Enterprise Collaboration
    EGroupware has moved to Github, please find all our downloads there: https://github.com/EGroupware/egroupware/releases EGroupware is a multi-user, web-based groupware suite. Currently available modules include: email, addressbook, calendar, infolog (notes, to-do's, phone calls), content management, wiki, project management, tracker, timesheet, knowledge base, CalDAV/CardDAV
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Magic Spell, a mail client with POP and IMAP support and multiple interfaces.
    Downloads: 0 This Week
    Last Update:
    See Project
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    The full-stack observability platform that protects your dataLayer, tags and conversion data

    Stop losing revenue to bad data today. and protect your marketing data with Code-Cube.io.

    Code-Cube.io detects issues instantly, alerts you in real time and helps you resolve them fast. No manual QA. No unreliable data. Just data you can trust and act on.
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  • 10
    An email client written in Java, C, and C++ which not only allows standard pop/smpt/imap access, but also integrated access to Yahoo!, Hotmail, Lycos, and many others. This is all done without any additional services (such as pop forwarding).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Hey Everyone! Nirvana has moved to http://sourceforge.net/projects/nirvana It isn't here anymore.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    This e-mail notifier is a notify you when an e-mail is set in the accounts setup in the Accounts tab and sits in your tray checking your e-mail account every 15 minutes or less. You can have multiple e-mail accounts setup to check them all at once.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Enhanced packages of Mozilla products for OS/2 and eComStation.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Webmail project, based on the original UebiMiau, that uses the newer smarty template engine, better optimized, have export / import of addressbook, most things rewritten, many new features.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    A better Webmail Interface for MailEnable.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Downloads: 0 This Week
    Last Update:
    See Project
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