Alternatives to OBM for all platforms with any license

Platforms

Show 9 less popular platforms
  • SOGo icon

    SOGo

    SOGo 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...

    Open Source Linux Web / Cloud Thunderbird Cloudron

  • Kolab Now icon

    Kolab Now

    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.

    Commercial Web / Cloud DAVdroid

  • Horde icon

    Horde

    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards...

    Open Source Web / Cloud

    No features added Add a feature
  • iRedMail icon

    iRedMail

    A 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...

    Open Source Linux BSD Self-Hosted

    No features added Add a feature
  • Zarafa icon

    Zarafa

    Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile phone support, Outlook "Look & Feel" webaccess and...

    Commercial Mac Windows Linux Web / Cloud

  • Kerio Connect icon

    Kerio Connect

    Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications...

    Commercial Mac Windows Linux Web / Cloud

  • OpenChange icon

    OpenChange

    OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols. Exchange is a groupware server designed to work...

    Open Source Linux

    No features added Add a feature
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  • eGroupWare icon

    eGroupWare

    Egroupware is a web based software for team collaboration, central data management and CRM: email client, online calendar, contact and task management, project and file...

    Open Source Linux Web / Cloud

    No features added Add a feature
  • Atmail Email Server icon

    Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. Features: Webmail Calendar Addressbook ...

    Commercial Linux Web / Cloud

  • Blue-Mind icon

    Blue-Mind

    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...

    Open Source Linux

    No features added Add a feature

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