Opening the door to unlimited creativity… Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email. [insert fun loading text here] 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Keep your email subject line short and attention-grabbing. "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Boost your email opens with a punchy subject line.