Is anyone even reading this? Keep your email subject line short and attention-grabbing. Feel free to spin in your chair while you wait 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! Don’t make ‘em yawn! Keep your emails exciting and brief. Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Boost your email opens with a punchy subject line.