Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
|Office365 - Handling DLs when some users are synced (AAD Connect) and other users are not||6||24|
|Restrict Mailbox size in Exchange||2||25|
|Exchange 2016 CU5 HealthMailboxes growing and Your mailbox is almost full.||3||31|
|find the Exchange server name that Outlook is connected to.||6||28|