I have fetch out some stale active devices in exchange 2013 that not used from last 45 days. So found some 1000 devices status for Device access state is showing Blocked ..
So my question is, is it safe to remove those devices from exchange and also some of those devices below status is showing blank
LastPolicyUpdateTime LastSyncAttemptTime LastSuccessSync
Please suggest. in terms of removal will effect anything on exchange 2013