Adds "Copy to Recent," "Move to Recent," and "Go to Recent" menu items to Apple's Mail application. These menu items contain dynamically-updated lists of recently used mailboxes. The number of mailboxes kept in the list is determined by the "Number of Recent Items" setting for Documents in the Appearance panel of the OS X System Preferences. If you delete or move a mailbox, it will be updated in the menus. If you remove or disable a mail account (using Mail's preferences) any corresponding mailboxes will be removed from the recent mailbox lists.