Boost your email opens with a punchy subject line. “PosterMyWall has a variety of different email templates that makes the job a whole lot easier than usual.“ - neokolmann Sit up straight. Fighting off robots… Test, test, and test again! Make sure your email looks good on all devices before you send it out. Keep your email subject line short and attention-grabbing. Keep an eye on your email open rate to analyze and improve performance! A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.