Join 4 million members in making awesome marketing content. Feel free to spin in your chair while you wait My day’s been ok, how’s yours? Try different email subject line styles to find what gets the most opens. Opening the door to unlimited creativity… A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Let your imagination run wild. Don’t forget to add a short preview description to encourage people to click on your email.