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Free and Busy Exchange 2010 and Outlook is not working if I Use OWA it works <br />
when trying to use outlook 2010 or 2013 I receive message not accessible Please advise
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Free and Busy Exchange 2010 and Outlook is not working if I Use OWA it works 
when trying to use outlook 2010 or 2013 I receive message not accessible Please advise

Free and Busy Exchange 2010 and Outlook

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.