One Mississippi, two Mississippi… Generating witty text... Don’t forget to add a fun, relevant call-to-action button to your email. Boost your email opens with a punchy subject line. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! [insert fun loading text here] Don’t forget to add a short preview description to encourage people to click on your email. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.