Order emails not working for mobile

Hi,
We bought a licence and now uses Mailpoet to send all emails. I cant find a support link through our user or our premium plugin, so writing here instead.

Before activating Mailpoet and used gmail SMTP, the email templates looked fine.
Here you can see a before and after:

With Mailpoet
With Gmail SMTP

Can you tell me why this is, and how to solve this?

The page I need help with: [log in to see the link]