Not just a pretty interface Test, test, and test again! Make sure your email looks good on all devices before you send it out. Time to get that bread. [insert fun loading text here] Don’t make ‘em yawn! Keep your emails exciting and brief. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email.