Not just a pretty interface Don’t forget to add a fun, relevant call-to-action button to your email. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Fighting off robots… Don’t make ‘em yawn! Keep your emails exciting and brief. Is anyone even reading this? Let your imagination run wild. Test, test, and test again! Make sure your email looks good on all devices before you send it out.