Generating witty text... 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Time to get that bread. Keep your email subject line short and attention-grabbing. Not just a pretty interface Get creative with emojis in email subject lines to increase open rates! Don’t make ‘em yawn! Keep your emails exciting and brief. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.