The document discusses the rise of mobile email usage. Key points: 1) Over 40% of the British population owns a smartphone and 55% check mobile email daily. 2) 27% of emails are now opened on mobile devices. 3) Only 20% of users find mobile email as easy to use as desktop, indicating a need for improvement in mobile email design. 4) Responsive design, which adapts one HTML layout for different devices, is recommended to optimize the mobile email experience.