A successful layout for a high-performing email must have an appropriate sender’s name having it professional while avoiding names such as “no-reply” emails. Make it personalised or at least come across authentic considering things such as the preview text as it will be shown, and the title if readers see things such as “40% OFF!” or “free” they will think its coming from a robot which will reduce your CTI. And of course, proof read one character mistake can cost you a potential customer.