[PS] C:\Windows\system32>Remove-StoreMailbox -Identity d7e6d88b-a905-4a6a-bf7d-270b64e734f3 -Database DB13 -MailboxState Softdeleted

The mailbox "d7e6d88b-a905-4a6a-bf7d-270b64e734f3" isn’t disconnected
    + CategoryInfo          : NotSpecified: (:) [Remove-StoreMailbox], ManagementObjectNotFoundException
    + FullyQualifiedErrorId : [Server=EX0401,RequestId=7f221125-935c-4713-9584-5971fd32bf5e,TimeStamp=28.06.2021 12:48:57] [FailureCategory=Cmdlet-ManagementObjectNotFoundException] 95C8F437,
   Microsoft.Exchange.Management.StoreTasks.RemoveStoreMailbox
    + PSComputerName        : ex0401.test.local