There is a user that claims they have a missing .pst file. I cannot find any .pst files on the hard drive except a like 265k .pst. There is really nothing in it. They said none of the mail in their Outlook box on the server has this info in it. Is there a way to recover 1 mailbox from the Exchange Server or what else can be done to locate the mail. Would the .ost give more info?