Reporting Exchange Online Mailbox and SendAs/On Behalf Of Permissions

Exchange Online mailboxes support SendAs, Send on Behalf Of, and FullAccess permissions. A previous script focused on the FullAccess permission. This version covers all three. It’s also a good example of how you need to pay attention to property sets when writing PowerShell code to use the new Exchange Online REST-based cmdlets.

Reporting Exchange Online Folder Permissions

In addition to mailbox permissions, Exchange Online supports folder-level delegated permissions. Users can create folder delegations through Outlook desktop. Like mailbox permissions, it’s a good idea for tenants to check folder-level delegations to ensure that people don’t keep permissions for longer than they should. We explain how to create a PowerShell script to generate such a report.

Reporting Exchange Online Mailbox Permissions

Exchange Online makes it easy to assign delegated permissions for user and shared mailboxes. But permissions assigned to people might not be still necessary, so it’s good to do a periodic check. In this post, we describe a script to scan for permissions on Exchange Online user and shared mailboxes and highlight non-standard permissions in a report generated as a CSV file.