Not just a pretty interface A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Join 4 million members in making awesome marketing content. Feel free to spin in your chair while you wait Don’t forget to add a short preview description to encourage people to click on your email. Is anyone even reading this? 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Keep your email subject line short and attention-grabbing.