Boost your email opens with a punchy subject line. My day’s been ok, how’s yours? 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. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Sit up straight. Keep your email subject line short and attention-grabbing. Don’t forget to add a fun, relevant call-to-action button to your email.