Real quick question, A few months back I have set up email accounts exchange using AD on a domain all is fine. (email, address books ,calendars etc.) But I left the old .pst files on a networked drive. For some reason outlook the clients are still accessessing the old .pst not for (email, address books ,calendars). I have removed an account with no adverse effect as a test. But can any one tell me why outlook is still accessing the old .pst, as I was going to delete all the old .pst files until they all had todays timestamp on.