Lotus Notes Deleted Items Folder

Lotus-where does message goes once it is deleted from Trash

If a message is deleted from Trash also, is it possible it to recover back again. where is it stored after that. In my case Lotus client version is 6.5

Tracking down the user who deletes mail in Lotus Notes 6.5

We are using lotus notes 6.5 and 3-4 users are using the same ID. There is a crank here who is deleting the mails. Is it possible to track down this person. The deleted mails in trash folder can it be shown the time/date the mails are deleted.