Reinstall Mail App
How can I reinstall Mail.app?
I can't back in time with Time Machine as I don't have it.
I can't custom install app from Maverics as it offers reinstall the whole system and that I don't want to.
The problem is that I somehow delete some .plist files and now every smartbox I put on Mail Bookmarks panel keeps disappering every time I quit Mail.app
MacBook Pro, OS X Mountain Lion (10.8.2)