Don’t forget to add a fun, relevant call-to-action button to your email. Keep your email subject line short and attention-grabbing. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Sit up straight. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Join 4 million members in making awesome marketing content. Is anyone even reading this? Let your imagination run wild.