Is anyone even reading this? "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Test, test, and test again! Make sure your email looks good on all devices before you send it out. Not just a pretty interface Let your imagination run wild. Keep your email subject line short and attention-grabbing.