In this article, I’ll cover everything about permissions for mailboxes and mailbox folders, regardless of whether you have an Exchange Server on-premise or an Exchange Server online. I will give you some useful examples to build on. We’ll start at the very beginning and then move forward. And now, let’s dive into the power of PowerShell.

Here is a list of examples and a brief explanation of each operation.

Show Mailbox Permissions

Get-MailboxPermission shows all permissions of a mailbox. In this example I am retrieving f.hubers mailbox and its permission settings.

Get-MailboxPermission -Identity "f.huber" | Select-Object User,AccessRights

You can also show the mailbox permissions of a specific folder f.e. the calendar. Watch your language! In my case it is German. (Kalender = calendar)

Get-MailboxFolderPermission -Identity "f.huber:\kalender"

Set Mailbox and Mailbox Folder Permissions

Add-MailboxPermissions grants a user to access a mailbox. In this example I grant the access right FullAccess.

Add-MailboxPermission -Identity "f.huber" -User alert -AccessRights FullAccess

It is also possible to grant permissions to a specific folder of a mailbox. In this example I grant the user alert to access the calendar of f.huber with the editor privilege. Again, watch the language!

Add-MailboxFolderPermission -Identity f.huber:\kalender -User alert -AccessRights Editor

Remove Mailbox Permissions

To remove permissions from a maibox run Remove-MailboxPermission.

Remove-MailboxPermission -Identity "f.huber" -User alert -AccessRights FullAccess

That’s it for today.