Microsoft Exchange is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best paid Linux alternative is Google Workspace. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Exchange and ten of them are paid and available for Linux so hopefully you can find a suitable replacement. Other interesting paid Linux alternatives to Microsoft Exchange are Zimbra Collaboration Suite, Axigen, SmarterMail Mail Server and Zarafa.
Google Workspace delivers a cloud-based suite combining Gmail, Calendar, Meet & Drive to enhance collaboration through tools like Docs and Sheets. Offers secure storage options, custom domain emails, and robust management capabilities with 2FA and 24/7 support.
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).
SmarterMail is the only other email server on the market with native support for MAPI, the protocol that powers Exchange and Outlook. That means anything you can do on Exchange you can do with SmarterMail: no plug-ins and no additional software required.
Offers native MAPI integration, along with EWS and EAS. Works great with Outlook, but also other clients like the MacOS client, eM Client, and others. No CALs, like for on-prem Exchange.
Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile phone support, Outlook "Look & Feel" webaccess and stable Outlook sharing (100% MAPI).
Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
Turnkey Solutions for the Enterprise Cloud
Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file sharing, and file transfers.
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.
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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Axigen is so much easier to use, it has the on-premise solution, and has unbeatable prices!