3/20/2009
Set a user to have impersonation rights on Exchange 2007
(Add these commands with Exchange Management Shell PowerShell)

This user will be allowed to search user’s inbox for new voicemails


Add-ADPermission -Identity (get-exchangeserver -Identity MyMailServer).DistinguishedName -User (Get-User -Identity MyUserName | select-object).identity -extendedRight ms-Exch-EPI-Impersonation

Get-MailboxDatabase | Add-ADPermission -User MyUserName -ExtendedRights ms-exch-EPI-May-Impersonate

-Replace MyUserName and MyMailServer with your information.


Special thanks to Eric for the new PowerShell command to simplify "May Impersonate"