This policy setting allows you to disable Exchange Fast Access, which forces user accounts to access data from a local cache.If ...

This policy setting allows you to disable Exchange Fast Access, which forces user accounts to access data from a local cache.If you enable this policy setting, Exchange Fast Access is not available to any Exchange Accounts on a computer.If you disable or do not configure this policy setting, Exchange Fast Access is turned on by default for Exchange Accounts in Cached Exchange Mode.