Test, test, and test again! Make sure your email looks good on all devices before you send it out. Get creative with emojis in email subject lines to increase open rates! Fighting off robots… Keep your email subject line short and attention-grabbing. Boost your email opens with a punchy subject line. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Is anyone even reading this? Try different email subject line styles to find what gets the most opens.