You have to be connected to exchange online by powershell. Query calendar permission of a user The folder name “calendar” depends on the user language… Read More »Query and change calendar permissions of a single user
After connecting to exchange online by powershell, all existing mailboxes can be queried.
First of all you need to open a powershell window. Enter user credentials for accessing Office 365 Open the connection Get the remote commands Disconnect… Read More »PowerShell connection to exchange online