Kolab provides a FOSS communication & collaboration solution that can be completely self-hosted. Take back control of your data and access it via the webinterface, or existing mobile & desktop clients.
Switzerland
Xeams AlternativesMail Servers and other similar apps like Xeams
Xeams is described as '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' and is a Mail Server in the office & productivity category. There are more than 10 alternatives to Xeams for a variety of platforms, including Linux, Windows, Self-Hosted, Web-based and Mac apps. The best Xeams alternative is Kolab, which is both free and Open Source. Other great apps like Xeams are Microsoft Exchange, Axigen, SmarterMail Mail Server and Proxmox Mail Gateway.
Alternatives list
- 48 Kolab alternatives
44 Microsoft Exchange alternativesExchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Windows
- Online
- Self-Hosted
- Microsoft Office 365
+1
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
15 SmarterMail Mail Server alternativesSmarterMail 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.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Windows
- Linux
- Docker
+5
12 Proxmox Mail Gateway alternativesProxmox Mail Gateway is the leading open-source email security solution helping you to protect your mail server against all email threats the moment they emerge.
+2
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
Is a collaboration suite (messaging and groupware). It is designed to run on open source operating systems such as Linux or BSD. In order to modernize the Citadel platform for the Internet, the Citadel/UX developers added functionality such as shared calendars, instant...
19 Poste.io alternativesFull featured solution for your Email server. Native implementation of last anti-SPAM metods, webmail and easy administration included.
+3
Scrollout F1 is a free self-hosted email gateway designed for Linux & Windows administrators without advanced email security experience.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux
- Self-Hosted
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.
Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile phone support, Outlook "Look & Feel" webaccess and stable Outlook sharing (100% MAPI).
Cost / License
- Paid
- Proprietary
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Online
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.
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