A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Let your imagination run wild. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Sit up straight. Not just a pretty interface Keep an eye on your email open rate to analyze and improve performance! 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Boost your email opens with a punchy subject line.