She erased the Outbox? That makes,zero sense. The Outbox is a temporary holding,tank for emails,after you click “Send.” There is nothing stored there except for the occasional time when the server has problems.
Besides, nobody would Fiddle around clearing mailboxes from within the mail program. You would delete the files the server uses. Then wipe free space on the drive.
This doesn’t pass the stink test.
My Outbox sometimes holds onto emails that are too large to send.
The next day the email will still be there.
Sent folder, and she had a mail system set up where hackers could bypass all the security elsewhere and go right in.
They probably copied all the sent Email before she took it offline and wiped it.