Get creative with emojis in email subject lines to increase open rates! Want the loading time to be longer so we can spend more time together :) A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. I’m worth the wait 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Fighting off robots… One Mississippi, two Mississippi… Don’t make ‘em yawn! Keep your emails exciting and brief.