Sit up straight. Not just a pretty interface Boost your email opens with a punchy subject line. “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! Feel free to spin in your chair while you wait One Mississippi, two Mississippi… Try different email subject line styles to find what gets the most opens.