I recently installed a new HDD in my MBP, copied my mail from old drive. All works fine except that one of my accounts lists all the mail but brings up a blank message when you try to view it. But if I go in to the ~/library/mail folder all the messages are there and i can view them. Now the problem, I can't delete them from Mail.app. I delete them and it just greys the name out. I even deleted the entire Inbox from the ~/library/mail folder, yet they are still listed in mail. Is there a file somewhere else that lists the what emails you have in the Mail.app?