Open-Xchange Server Edition is a multi-tier, small footprint solution that integrates seamlessly into customer’s architectures, enabling smooth start of operation based on services. The Open-Xchange Server Edition supports different Enterprise Linux systems like SUSE Linux Enterprise Server 10, Red Hat Enterprise Linux 5, and Debian Etch. Users are presented with a highly advanced, improved, and intuitive browser based interface that meets all their email, calendaring, tasking, contacts, and document storage requirements. Further integrations like LDAP-support or ADS are possible. It's designed for medium organizations and educational and public administrations that want to have a customizable communication solution.

Operating Systems

RSS Recent releases

Release Notes: This release provides a number of new user interface and backend features. A PIM user can now invite external participants, edit contacts directly in distribution lists, expunge messages in the mail folder context menu, and choose the target file store and/or database cluster by context creation.

Release Notes: This update provides a new and improved Open-Xchange Server backend with enhancements for both generations. It includes a new, clear, and logical structure for the configuration files and packages, an improved exception framework, a unified OSGi, etc.

  •  31 Aug 2012 04:35

Release Notes: This release adds a number of user interface backend features, including CalDAV access via Thunderbird/Lightning, with which it is possible to synchronize all Open-Xchange private, public, and shared calendars to the personal Thunderbird/Lightning client. Further user interface features are displaying appointment creator information and group tasks in the user interface.

  •  18 Jul 2012 20:40

Release Notes: This release adds a number of user interface and backend features, including auto-logout from the user interface, saving draft mail attachments, and official support for CentOS 6. It provides a new social wizard plugin and a confirmation popup if the browser closed.

  •  19 Jun 2012 21:31

Release Notes: This release provides a number of user interface and backend features, including improved invitation handling like sending mail with a configured default sender address, messages for resources marked “[Resource]”, and invitation messages providing the correct time zone. It provides export functionality for the Task module.

RSS Recent comments

16 Jul 2007 07:13 dsimpson222

Express Edition
Express edition was launched and looks like the best open-source collaboration application that I have seen. Runs on Ubuntu

06 Feb 2007 13:49 hertell Thumbs down

This project seems to be dead
There has been no progress since august 2006... Unfortunately a great project simply dies away..

17 Nov 2006 07:16 steppy28 Thumbs up

Re: Zimbra

> We moved from OX to Zimbra. Slick AJAX

> Web UI for both end users and

> administrators. Super simple 10min

> install.


> Zimbra

Zimbra has about 1/2 the functionality and is long-term way more expensive than OX (OX charges only for upgrades, zimbra uses a subscription-based model per-user/per-year). Both are good products, but I would suggest OX if you're looking long-term.

17 Nov 2006 07:08 steppy28 Thumbs up

Love it...
Great project, I was amazed at the functionality of it. Hope word gets around soon, the developers deserve the credit. For a small or mid-sized company, this product alone has done wonders for our productivity without taking anything away in terms of training. Thanks guys!!

30 Apr 2006 13:47 CyrilSneer Thumbs up

Re: Great piece of software
Full ACK. After having some problems with the installation (specially the ldap part) it is a smart running piece of software. You'll get a bunch of full featured modules with lots of options. I won't miss it! Thanks to the whole OX developers, as well to the community and keep on the good work.


BTW: For those who have problems its worth to take a look to the forum, the wiki or the mailing lists which contains lots of informations about the installation, documentation and other misc stuff.


Project Spotlight

Midnight Commander

Unix file manager and shell


Project Spotlight


An Audio/MIDI multi-track sequencer.