Keep an eye on your email open rate to analyze and improve performance! Want the loading time to be longer so we can spend more time together :) Don’t forget to add a short preview description to encourage people to click on your email. Let your imagination run wild. Don’t forget to add a fun, relevant call-to-action button to your email. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Fighting off robots… Boost your email opens with a punchy subject line.