I didn't know that. I presumed wrongly that Mail.app wouldn't allow me to re-export my stored mail. Now I have the dilemma of choosing to go back to Mail.app (w

I didn't know that. I presumed wrongly that Mail.app wouldn't allow me to re-export my stored mail. Now I have the dilemma of choosing to go back to Mail.app (which I really liked) and lose my Thunderbird customization, or stick to Thunderbird :-)