Try different email subject line styles to find what gets the most opens. Keep an eye on your email open rate to analyze and improve performance! Boost your email opens with a punchy subject line. Opening the door to unlimited creativity… 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Don’t forget to add a fun, relevant call-to-action button to your email. One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates!