Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi David,
It’s not feasible to get the email activity report for the shared mailbox even via PowerShell commands.
About this feature, I suggest you submit feedback to our related team via the link below:
https://office365.uservoice.com/forums/273493-office-365-admin
We welcome any comments from our customers so as to ensure that we can continually develop/improve products to meet our customers’ needs.
As a workaround, we suggest you run a message trace for the shared mailbox and choose it as the recipient/sender to view results.
Regards,
Monique