Get-RpcClientAccess

Use the Get-RpcClientAccess cmdlet to display the settings for the Exchange RPC Client Access service that's running on the Client Access server role on Microsoft Exchange Server 2010.

By default CAS role is enable an responsible for mailboxes services, and Mailbox server role is responsible for Public folders.



By default Outlook 2007/10 is enable for encrypted all communication between client / server but for outlook 2003 no, we must to disable the encryption from server side or just enable it on the clients:



http://technet.microsoft.com/en-us/library/dd335190.aspx