To view all the full access permissions on all the mailboxes in your environment, you can use the following command in the Exchange Management Shell.
Get-Mailbox | Get-mailboxpermission | where {-not ($_.User -like “NT AUTHORITY\SELF”)} | Ft -wrap
When you want the full access permissions configured on one specific mailbox, you can add the -identity switch. For example:
Get-Mailbox -identity systeembeheer | Get-mailboxpermission | where {-not ($_.User -like “NT AUTHORITY\SELF”)} | Ft -wrap
