Join 4 million members in making awesome marketing content. Sit up straight. Time to get that bread. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Is anyone even reading this? Feel free to spin in your chair while you wait Don’t forget to add a fun, relevant call-to-action button to your email. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.