Boost your email opens with a punchy subject line. Not just a pretty interface 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Don’t forget to add a fun, relevant call-to-action button to your email. Want the loading time to be longer so we can spend more time together :) Generating witty text... Time to get that bread. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.