51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Keep your email subject line short and attention-grabbing. Try different email subject line styles to find what gets the most opens. I’m worth the wait Want the loading time to be longer so we can spend more time together :) Boost your email opens with a punchy subject line. Don’t forget to add a fun, relevant call-to-action button to your email. Is anyone even reading this?