Outlook, POP and PST handling
Solution 1:
My instinct would be to recommend trying IMAP instead, it's better at synchronizing the client with the server but if that's not available why not try this:
- Move all Inbox mail from the Original PST File into a new Original_Inbox folder
- Setup the new Outlook profile with the Original PST File
- Allow it to download the POP mail into the Inbox folder
- Delete any duplicate Inbox mail
- Move the Original_Inbox mail back to the Inbox folder.
That's the best I can think of without IMAP.