How to find EV archive policy thru powershell

Morning All

We Recently had EV installed by our parent company. The question i have is we are trying to determine which users mailbox currently DO NOT have the archiving policy applied and if this is possible to achieve by using the Exchange powershell. Any assistance would be greatly appreciated.

We are using Enterprise Vault Version (Updated: i cannot access server atm to give you these details Apologises) Along with Exchange Server 2010 Ver 14.02.0318.001

Regards