Am changing an employee's email to POP from IMAP, but can't import the old .ost file to retrieve older emails. I already deleted the old IMAP account and created the new POP. The old .ost file is still there, I just can't open it or retrieve any messages. Even tried recreating the IMAP account and renaming the old .ost to the new .ost file name, but that just produced an error. Anythoughts?