OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
Platforms
- Linux
Kopano Alternatives
Apps similar to Kopano include eigen, which is free and open source. Other options are Google Workspace, Nextcloud Hub, Mailo and Infomaniak kSuite. Mail Servers like Kopano are a crowded field, with more than 25 alternatives for the web, Windows, Linux, self-hosting and Mac.
Alternatives list
Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
Bosnia & Herzegovina
+9
28 MDaemon Messaging Server alternativesLow cost, easy to use Email Server software for virtual, on-premise, or hosted deployments for companies that want control of their email. Integrated web-mail with doc sharing, Drop Box integration, client and server side encryption.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Windows
United Kingdom
+5
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 typeApplication types
Platforms
- Linux
- Online
- Self-Hosted
- Software as a Service (SaaS)
Germany
EU
+6
Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
- Online
United States
46 IceWarp alternativesAll-in-one European business email and collaboration platform — email, chat, video conferencing, and office suite in one app. Cloud or self-hosted.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Windows
- Linux
- Online
- Mac
- Android
- iPhone
Czechia- EU
+2
The Mercury Mail Transport System is a mail server that sends and receives messages on behalf of a group of users on a machine or local area network. Messages from the outside world are received by Mercury and delivered to the users, who can access it at any later point.
Cost / License
- Free Personal
- Proprietary
Application type
Platforms
- Windows
75 Atmail Email Server alternativesAtmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Linux
- Online
Australia
Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited mail accounts, storage, attachment size, custom logo. Free for commercial use.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Windows
- Self-Hosted
China
Sanwhole Exchange is a server running iMail, iPress and iStore services. iMail is an enterprise-class email server does Microsoft Exchange and Gmail work. iPress sets blog, forums and tickets in one. iStore is an online store.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Windows
- China
43 MailShogun alternativesMailShogun is a plugin that creates domain emails easily. You can pick between your professional and regular e-mail address when sending or receiving from your regular g-mail account. One of the cheapest mail forwarding services you can find on the web.
Cost / License
- Paid
- Proprietary
Platforms
- Online
Office EU is a 100% European office suite with email, documents, calendar, and cloud storage. Open-source, GDPR-compliant, and free from foreign jurisdiction.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Online
- Software as a Service (SaaS)
Netherlands- EU
+4
New Zealand
