Boost your email opens with a punchy subject line. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Sit up straight. 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 short preview description to encourage people to click on your email. Time to get that bread. Keep your email subject line short and attention-grabbing. Not just a pretty interface