all you can do is restore the full outlook.pst file from the last backup. Then import all later messages from the current version (which you renamed before restoring the old one). It's not the recommended procedure, but there's a good chance it will work.
Not having a backup is inviting problems, sooner or later, as shown again by this example.
But the lay-out might be defined in the registry (although I don't think so). It might be worth the trouble to try a system restore on a test system and see how that works.
Q: Is there a way to add a field column to the Outlook Inbox and simultaneously add it to all the Inbox subfolders?
I'm working with someone who accidently deleted the "received" field column under her Outlook Inbox. She has hundreds of subfolders, folders within folders, and the "received" field got deleted from those folders as well. When I go to add the field back to the main inbox the change is not filtering down to all of the inbox subfolders.
In testing I find that I can't normally delete field columns from subfolders simply by deleting it from the parent folder. Also, I can't add fields to subfolders this way either. But there must be a way of undoing this - right?
She is running Windows 2000 and has Outlook 2000.
Any ideas? Technet and Google aren't helping.