A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. My day’s been ok, how’s yours? I’m worth the wait Keep your email subject line short and attention-grabbing. Is anyone even reading this? Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Don’t forget to add a short preview description to encourage people to click on your email. Try different email subject line styles to find what gets the most opens.