Prevent Global Address list from being default in Outlook for Exchange accounts

For this to work, the Exchange server needs to be on SP3.

This wil make it so that when a user clicks on the address book in Outlook, they are presented with their local address book, not the GAL.

Set-CASMailbox -Identity Rich -ShowGalAsDefaultView $false

If you wanted to apply this to all users you could run:

Get-Mailbox -RecipietType UserMailbox | Set-CASMailbox -ShowGalAsDefaultView $false