Don’t forget to add a short preview description to encourage people to click on your email. Generating witty text... A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Time to get that bread. Keep your email subject line short and attention-grabbing. “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. Boost your email opens with a punchy subject line.