A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Opening the door to unlimited creativity… Get creative with emojis in email subject lines to increase open rates! Boost your email opens with a punchy subject line. Keep your email subject line short and attention-grabbing. Joyina izigidi ezingu-4 zamalungu ekwenzeni okuqukethe kwemakethe okuhle. Sit up straight. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!