Exchange Challenger Integrates With Mac Calendar

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Open-source Exchange competitor Zarafa is adding support for CalDAV to its groupware server, enabling integration with the Mac OS X calendar application iCal, for instance, it announced at Cebit in Hanover, Germany.

CalDAV (Calendaring Extensions to WebDAV) is a standardized protocol for sharing calendaring and scheduling information between users, who can also access their calendars offline, according to Ryan Hughes, the manager for open source at Zarafa, which means giraffe in Arabic.

Like all standardized protocols interoperability with other applications doesn't come without some testing and Zarafa will make sure its CalDAV implementation works with iCal and Sunbird, which is a calendar application from Mozilla.

The support for CalDAV will be available in version 6.30, which should be ready by the end of April, Hughes said.

Zarafa is compatible with Outlook, and comes with an Outlook Web Access-like client. There is also support for the iPhone, Nokia Nseries and Eseries and Windows Mobile phones via the open-source Z-Push project, as well as native support of the BlackBerry Enterprise Server.

There are three commercial versions available: Standard, Professional and Enterprise.

The licensing cost for the Standard version is about €4,200 (US$5,300) for 100 users during the first three years. The Professional and Enterprise versions cost about €8,000 and €12,800, respectively, for the same period and number of users. The Professional version adds, for example, support for BlackBerry Enterprise Server and auto deployment tools. The Enterprise version includes multiserver support.

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