"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Keep your email subject line short and attention-grabbing. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Is anyone even reading this? A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Keep an eye on your email open rate to analyze and improve performance! Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email.