Feel free to spin in your chair while you wait 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Opening the door to unlimited creativity… Get creative with emojis in email subject lines to increase open rates! Not just a pretty interface One Mississippi, two Mississippi… Don’t forget to add a fun, relevant call-to-action button to your email. Don’t forget to add a short preview description to encourage people to click on your email.