trying to duplicate what I have on my Droid 3 on my wife's Maxx..

on my D3 I have and use the 'stock Messaging app' ( looks like a gray-red Mailbox icon) that came with the phone.. in it is the 'Universal Inbox'....Text messaging.. and my 4 other email clients that use the same icon--- the 'circle @'.. when I get an email on any of them a number is listed above it.. I want to have multiple emails on my wife's Maxx but that Email Messaging app is no where to be found..

any way to get it.. or find it.. I have searched mucho many places.. just can't locate it for her Maxx running ICS.. or am I just missing it