Try different email subject line styles to find what gets the most opens. Not just a pretty interface Sit up straight. Opening the door to unlimited creativity… A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Test, test, and test again! Make sure your email looks good on all devices before you send it out. One Mississippi, two Mississippi… 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!