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    With Exchange you can move your business email to the cloud, keep it running on your own servers, or choose a combination of both.
    With Microsoft Office Outlook 2007 and Microsoft Exchange Server 2007, I can efficiently and more safely collaborate and communicate with people all over the world.
    Have you checked out this one from microsoft ?
    ... featured Web application that provides an experience similar to Microsoft Office Outlook 2007. Visit for more information.