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. Not just a pretty interface Boost your email opens with a punchy subject line. Generating witty text... Fighting off robots… Get creative with emojis in email subject lines to increase open rates! A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.