Not just a pretty interface Keep an eye on your email open rate to analyze and improve performance! Sit up straight. Fighting off robots… Don’t forget to add a fun, relevant call-to-action button to your email. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Don’t forget to add a short preview description to encourage people to click on your email. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!