I have a pretty large mailbox that for some reason has many duplicate mails. I think my original import from my Windows machine failed and the older mails from 2009 to 2011 appear at least twice in both "Sent" and "Inbox".

I've tried the AppleScript "Remove Duplicates v2.1" but it _always_ causes Outlook to crash, unless I select maybe 50 mails at a time. With 47,000 mails this is not a solution.

Is there a way I can remove these duplicates from the "Data Records" folder via some shell script and then rebuild the database?