Opening the door to unlimited creativity… Don’t forget to add a fun, relevant call-to-action button to your email. Not just a pretty interface "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Try different email subject line styles to find what gets the most opens. Time to get that bread. Keep your email subject line short and attention-grabbing.