Is anyone even reading this? Test, test, and test again! Make sure your email looks good on all devices before you send it out. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Boost your email opens with a punchy subject line. My day’s been ok, how’s yours? One Mississippi, two Mississippi… [insert fun loading text here] Keep your email subject line short and attention-grabbing.