Delete archived items older than 6 month

Hi All,

We are using EV 9.0.2/ Exchange 2010

We want to delete few users’ archived items older than 6 month from EV server. I have created the new retention category i.e. 6 month and assign that in the provisioning group. Earlier that users belongs to retention category i.e. retain items forever

My question is can storage expiry able to delete 6 months old emails which has different retention category earlier?

What is the best method to delete user’s archived emails older than 6 month?

Thanks