Zarafa provides email storage on the server side and brings its own
Ajax-based mail client called WebAccess. Zarafa is designed to
integrate with Microsoft Office Outlook and is meant as an
alternative to the Microsoft Exchange Server. The WebAccess has the
same "look-and-feel" as the Outlook desktop application. Personal
address book, calendar, notes and tasks, "Public Folders" and shared
calendar functionalities (inviting internal and external users,
resource management) can be handled by the software as well.