I think I have it figured out (with some questions) but want to check with the forum first.

1. Export the pst file to my PC using the Open & Export – Import/Export feature. Just the pst file?

2. Create a new account using manual settings specifying IMAP. I have AT&T’s info on the various other settings.

3. Import the pst file into the new account. Where does it import to?

4. Delete the POP3 account. Is this necessary?