A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Generating witty text... Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Opening the door to unlimited creativity… 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. Not just a pretty interface Boost your email opens with a punchy subject line.