Keep your email subject line short and attention-grabbing. Opening the door to unlimited creativity… A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Don’t forget to add a fun, relevant call-to-action button to your email. 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. Sit up straight. We’re very font of you because you’re our type.