Avoid getting marked as spam! Only email people who have agreed to receive emails from you. One Mississippi, two Mississippi… "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Don’t forget to add a short preview description to encourage people to click on your email. Is anyone even reading this? Sit up straight. Boost your email opens with a punchy subject line. Don’t forget to add a fun, relevant call-to-action button to your email.