Hello! I have been using the new Pardot Email builder this week and I have noticed my emails are not sending as mobile responsive. When viewing the email in the email content builder, I can change the view to mobile and see what it will look like. The buttons are almost full width of the screen ad the text is appropriately bigger 👍🏻 However, when I sent the list email, on a mobile device it simply looked like a mini version of the desktop email, text and buttons were quite small, not resized as you would expect from a mobile responsive template and not like I was seeing in the email content builder. 

Any thoughts? Am I missing a setting or something? 

Thanks in advance for your help

Michelle