"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Test, test, and test again! Make sure your email looks good on all devices before you send it out. Fighting off robots… Time to get that bread. Keep an eye on your email open rate to analyze and improve performance! Don’t make ‘em yawn! Keep your emails exciting and brief. Boost your email opens with a punchy subject line. Don’t forget to add a fun, relevant call-to-action button to your email.