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Microsoft Exchange Server Alternatives for Linux

Microsoft Exchange Server is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Kopano, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Exchange Server and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Microsoft Exchange Server are Google Workspace, mailcow: dockerized, Zentyal and Kolab Community.

Microsoft Exchange Server alternatives are mainly Mail Servers but may also be WebMail Providers or Calendar Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Microsoft Exchange Server.
This page was last updated
  • Windows
  • Online

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is part of the...

Learn more about Microsoft Exchange Server

  1. Turnkey Solutions for the Enterprise Cloud

    Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file sharing, and file transfers.

    ⚫︎ Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
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  2. OBM icon

    OBM

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.

    ⚫︎ Real time collaborationMultiple users can work together in OBM simultaneously.
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    Discontinued

    The GitHub repository has been archived and the last update was in 2017.

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  3. Xeams icon

    Xeams

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • BSD

    Xeams is a secure and powerful mail server for that includes a powerful spam filtering engine that eliminates up to 99% of junk email right out of the box. The software offers a flexible approach to email, making it a very user friendly server.

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  4. PowerMTA icon

    PowerMTA

    • Windows
    • Linux
    • Self-Hosted

    Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No over hype. It just delivers.

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  5. EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.

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    Admin console via Web.


  6. DeskNow icon

    DeskNow

    • Windows
    • Linux

    DeskNow is a fully featured and easy to use mail and collaboration server with build-in antivirus and antispam. SyncML for mobile devices is separately licensed.

    ⚫︎ Real time collaborationMultiple users can work together in DeskNow simultaneously.
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Showing 26 of 26 alternatives