The Open-Xchange™ Collaboration and Integration Server Environment allows you to store appointments, contacts, tasks, mails, bookmarks, documents, and many more elements and share them with other users. This environment can be accessed via any modern web browser and multiple fat clients like KDE Kontact, Apples iCAL, Konqueror, Mozilla Calendar, and many more, based on open standards and interfaces. If you download the Outlook OXtender, then the Open-Xchange™ Server can also be accessed via MS Outlook and Palm devices.
Home Page http://www.open-xchange.org/
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