Most of the organizations rely on the Exchange Server. In Parallel they may face many issues which may include corruption due to hardware issues, server failures, dirty shutdown, antivirus programs, errors from users etc. These make the valuable data inaccessible. So in order to access the corrupted Exchange mailbox data , need to plan for the Exchange server recovery.
The manual methods which are available to perform Exchange server recovery are:
Ex-merge utility
Exchange Management shell camdlts
Exchange Admin center
These methods consume more time and effort to give successful results. You should be technically expert to understand and to execute. Otherwise it would be complex for you to get successful results. More chances of data loss with these methods.
So it is better to focus on third party tools from which you can expect best results. EdbMails Exchange server recovery tool sounds more among them. It includes numerous advanced features.
High performance Exchange server recovery, Export, and Migration tool
Unlimited mailboxes recovery, export and migration
Repeat these way to deal with cripple withdrew mode. Note that it may take your phone every moment to reconnect to Wi-Fi and cell data in the wake of leaving isolates mode. If your phone doesn't have this clear course out of nowhere, you can flip free mode at Settings > Network and Internet > Airplane mode.