Don’t forget to add a fun, relevant call-to-action button to your email. We’re very font of you because you’re our type. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Boost your email opens with a punchy subject line. Sit up straight. Test, test, and test again! Make sure your email looks good on all devices before you send it out. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Avoid getting marked as spam! Only email people who have agreed to receive emails from you.