In one of those interesting (but possibly worthless) facts discovered about Office 365, we find that audit records are captured for Teams compliance records written into Exchange Online group mailboxes. The Search-UnifiedAuditLog cmdlet reveals details that we can interpret using some techniques explained in Chapter 21 of the Office 365 for IT Pros eBook.
Exchange Online now captures session identifiers in its mailbox and admin audit records that are ingested in the Office 365 audit log. That’s interesting and useful, but how do you access and interpret this information on a practical level?
Exchange Online will soon capture audit records for any access to a message in a mailbox. Initially, the audit records will not be ingested into the Office 365 audit log, but that will happen in the future.
Following a Dutch report saying that Office 365 might violate GDPR, some thoughts about how to restrict some of the flows of information from an Office 365 tenant to Microsoft.
Exchange administrators are accustomed to looking through mailbox audit logs to find details of events. Those same events are in the Office 365 audit log, so that’s the place to go look for information, like when you want to find out who sent a message from a shared mailbox using the SendAs permission.