Jul 18 2018 06:15 AM
The news that Microsoft will make mailbox auditing the default in Exchange Online is very welcome, as is the new mechanism they plan to use. Microsoft won’t get the new feature rolled out across Office 365 until the end of 2018, so there’s still a gap to fill to make sure that audit records are gathered for mailbox activity.
https://www.petri.com/mailbox-auditing-exchange-online