A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Try different email subject line styles to find what gets the most opens. Generating witty text... We’re very font of you because you’re our type. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Want the loading time to be longer so we can spend more time together :) Sit up straight. Avoid getting marked as spam! Only email people who have agreed to receive emails from you.