51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! [insert fun loading text here] Generating witty text... We’re very font of you because you’re our type. I wish I looked as good as you while waiting A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Sit up straight. Don’t forget to add a fun, relevant call-to-action button to your email.