All these *.dbx files are the letters which are simply collected in a heap. But to see how and restore can only letters, only marked as deleted. If compression of folders was carried out which physically delete letters from the file - then, of course, is all. Need to find by the same Norton, WinCommander with view64 or I'd rather Easy Outlook Express Repair
The beginning of the letter it usually Return-Path, and from there it is already simple to cut out as much as necessary and to write down with the eml extension. Outlook itself will understand that the superfluous.