Try different email subject line styles to find what gets the most opens. Fighting off robots… Don’t forget to add a fun, relevant call-to-action button to your email. Avoid getting marked as spam! Only email people who have agreed to receive emails from you. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Get creative with emojis in email subject lines to increase open rates! Opening the door to unlimited creativity… Keep your email subject line short and attention-grabbing.