mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.
Germany
EU
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Open Source Microsoft Exchange AlternativesTop Mail Servers and other similar apps like Microsoft Exchange
The best open source alternative to Microsoft Exchange is mailcow: dockerized. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Exchange and 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft Exchange are Kolab, hMail Server, Zentyal and grommunio.
Alternatives list
- 23 mailcow: dockerized alternatives
22 hMail Server alternativeshMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
26 Zentyal alternativesIntegrates native Active Directory and all essential network services, including domain, mail, gateway, infrastructure, and security roles, for SMBs, offering web-based management, centralized authentication, file server, VPN, and firewall in a single Linux platform.
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Zentyal vs Microsoft Exchange Comments
Not an Exchange alternative at all. Does basic AD but that is about it. It is more of a gateway server.
They do not share any common functionality. Zentyal is an Active Directory substitute, Microsoft Exchange is a groupware E-Mail (enterprise grade) server.
- Zentyal is Paid and Open Source
grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.
Cost / License
- Freemium
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Self-Hosted
grommunio vs Microsoft Exchange Comments
Great Activesync Support POOR and I mean VERY Poor Calendar that has a mind of It's own, setting events or reminders is a NIGHTMARE
norbertlambingAs the first open source solution to offer a full-featured OutlookAnywhere (RPC over HTTP) and MAPI/HTTP implementation, grammm is the alternative to proprietary backends for native interoperability with Microsoft Outlook
- grommunio is Freemium and Open Source
- grommunio is Privacy focused
61 SOGo alternativesSOGo is groupware server with a focus on scalability and open standards.
SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
Cost / License
- Paid
- Open Source
Application types
Platforms
- Online
- Software as a Service (SaaS)
- DAVx5
Kolab Now vs Microsoft Exchange Comments
With Microsoft no longer supporting our existing setup, this was a great alternative.
- Kolab Now is Paid and Open Source
- Kolab Now is Privacy focused
The OX App Suite by Open-Xchange is web-based platform offering a suite of apps like an email client, calendar, contacts magement, cloud storage with synchronization and productivity apps for word processing, spreadsheets and presentations.
Cost / License
- Free
- Open Source
Application types
Platforms
- Linux
- Online
- Self-Hosted
- Software as a Service (SaaS)
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66 iRedMail alternativesA fully fledged, free email server solution, an open source project (GPL v2).
Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support.
Easy, fast deployment in LESS THAN 1 MINUTE. View YouTube Video to check how easy it is.
Works on both no.
- C
Blue Mind is a complete solution of company messaging, calendars and collaborative work. It aims to enable you to work daily with comprehensive, useful, efficient and effective tools.
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
Switzerland
Spain
Canada
France
No Exchange alternative and no support for MS Outlook Client