CmdID / PowerShell / Cmdlets / Get
Get-MailboxFolderPermission
Use the Get-MailboxFolderPermission cmdlet to view folder-level permissions in mailboxes. Exchange PowerShell reference
From the Exchange PowerShell reference 7 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the mailbox folder that you want to view.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-GroupMailboxThe GroupMailbox switch is required to return Microsoft 365 Groups in the results.-ResultSizeThe ResultSize parameter specifies the maximum number of results to return.-SkipCount-UseCustomRouting-UserThe User parameter filters the results by the specified mailbox, mail user, or mail-enabled security group (security principal) that's granted permission to the mailbox folder.