A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Let your imagination run wild. Boost your email opens with a punchy subject line. Keep an eye on your email open rate to analyze and improve performance! One Mississippi, two Mississippi… Don’t forget to add a fun, relevant call-to-action button to your email. Fighting off robots… 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!