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
+3
Microsoft Exchange AlternativesOnly apps from the EU
The best alternative to Microsoft Exchange is mailcow: dockerized, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Exchange and nine of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Microsoft Exchange are Kopano, Zentyal, grommunio and Axigen.
Alternatives list
- 23 mailcow: dockerized alternatives
Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Online
- Software as a Service (SaaS)
Kopano vs Microsoft Exchange Comments
Top Positive CommentmarcskiStable and cheap backend, flexible frontend support, open source, in full control of your data
bobspScalable, open source with a great UX and it has all the features I need
- Kopano is Paid and Proprietary
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.
+1
Zentyal vs Microsoft Exchange Comments
No Exchange alternative and no support for MS Outlook Client
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
15 grommunio alternativesgrommunio (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
28 Axigen alternativesAxigen 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).
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- BSD
- Self-Hosted
- Microsoft Office Outlook
- Software as a Service (SaaS)
+1
Axigen vs Microsoft Exchange Comments
MenoetiusAxigen is so much easier to use, it has the on-premise solution, and has unbeatable prices!
- Axigen is Paid and Proprietary
- Axigen is Customizable
20 OX App Suite alternativesThe 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)
+6
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.
Web-based team collaboration suite combining email client, calendar, contact and task tools, CRM, project and file management, file sharing, trouble tickets, Rocket.Chat chat, and Collabora online editing. Offers open source, self-hosted, and SaaS options.
Cost / License
- Freemium
- Open Source (GPL-2.0)
Application types
Platforms
- Linux
- Online
- Self-Hosted
- Software as a Service (SaaS)
+6
EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.
+1
Netherlands
Spain
Italy
France
Free and open source, and has most of the things you want from Exchange, including shared calendars.