Keep your email subject line short and attention-grabbing. Opening the door to unlimited creativity… I wish I looked as good as you while waiting Test, test, and test again! Make sure your email looks good on all devices before you send it out. Don’t forget to add a short preview description to encourage people to click on your email. One Mississippi, two Mississippi… Keep an eye on your email open rate to analyze and improve performance! Boost your email opens with a punchy subject line.