Any way to apply this mailbox policy?

Hi,

I am running EV9.02 and Exchange 2010 SP2.

Our current Exchange policy is to only archiving items with attachments if they are older than 180 days.

We save a trememdous amount of space with little user impact, but item count is becoming an issue.

I would like to apply an additional policy of archiving all items over three years old and delete the shortcuts.

I've done some searching but haven't found an obvious solution. Is there a way to add this policy?

Thanks!