Sit up straight. "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! "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Generating witty text... Boost your email opens with a punchy subject line. Don’t forget to add a short preview description to encourage people to click on your email.