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. Is anyone even reading this? "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Opening the door to unlimited creativity… Try different email subject line styles to find what gets the most opens. Get creative with emojis in email subject lines to increase open rates! Boost your email opens with a punchy subject line.