Keep your email subject line short and attention-grabbing. “PosterMyWall has a variety of different email templates that makes the job a whole lot easier than usual.“ - neokolmann Get creative with emojis in email subject lines to increase open rates! Is anyone even reading this? Opening the door to unlimited creativity… Sit up straight. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Avoid getting marked as spam! Only email people who have agreed to receive emails from you.