A Few Tips for Writing Emails
The information should be well hierarchized, with the main message and the call to action associated with the goal you want consumers to accomplish located above the fold (i.e., before any scrolling happens). Emails should be short, with little to no scrolling. The subject line should include a call to action and be transparent about the content of the email. Emails aiming at conversion with a clear goal for consumers after the click can benefit from being associated with a landing page (i.e., the click leads the user to a landing page), and other landing pages tips, such as maintaining a low attention ratio, can be useful to create highly converting emails. Mailchimp provides its top tips and advice as well as design ideas in their email design guide here.