One Mississippi, two Mississippi… Sit up straight. “I enjoy the creative experience of PosterMyWall. All the features are easy and great to use. You’ve made my job easier by far.” - Angel C. 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. Keep your email subject line short and attention-grabbing. Don’t forget to add a short preview description to encourage people to click on your email. Don’t forget to add a fun, relevant call-to-action button to your email.