Generating witty text... [insert fun loading text here] 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. Don’t make ‘em yawn! Keep your emails exciting and brief. Sit up straight. Try different email subject line styles to find what gets the most opens. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!