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 Google Workspace. It's not free, so if you're looking for a free alternative, you could try Kopano or mailcow: dockerized. 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 Zentyal (Paid, Open Source), Zimbra Collaboration Suite (Freemium, Open Source), Kolab Community (Freemium, Open Source) and SOGo (Freemium, Open Source).

    This page was last updated Jun 14, 2021

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

      Discontinued

      The GitHub repository has been archived and the last update was in 2017.

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    2. Turnkey Solutions for the Enterprise Cloud Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file sharing, and file transfers.


      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Android Tablet
      • iPad
      Atmail allows you to choose between on-premises or cloud deployment. Features include email, contact, calendar, task, storage, synchronisation and provisioning. It's extensible through a RESTful API and allows easy rebranding and white-labelling.
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      • 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.
      No screenshots yet
      • 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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    3. SMBMail is a groupware server built with a focus on scalability and open standards. It provides secure, enterprise-style email, calendar & collaboration without the high cost.
      No screenshots yet
    4. 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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    5. 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.
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    Showing 28 of 28 alternatives