Exchange 2010 brings in a GUI in Exchange Management Console to export mailbox to a PST and to import from a PST. You need to right click the user and select the task.
- Export to a specific folder in another mailbox, which is a cool feature.
- Export to a PST file or even to a folder, if multiple mailboxes need to be imported.
- Import multiple PSTs from a folder in a single go.
- Import PST file into a mailbox.