This is one of those PITA things in InfoPath Filler. In the Browser, you can switch views and email. In the Filler, you get this icky bug where the email is blank. Instead of using a different view, we use two sections - one that is displayed when the form is filled out and one for emailing. Basically, you can copy your current main view into one section in a view, and your email view into another section. I'm attaching a basic sample that demonstrates the technique. Save the attached file locally, right click and select design and then you can preview & take a look at it.