When it comes to these social media emails, you don't have the option of using email software that allows you to customize the layout or add images. You're at the mercy of copy alone. This is where leveraging white space is very important. Keep your paragraphs short, your sentences brief, and your thoughts clear. Optimize these emails for the scanning reader, and use bullets or numbers to deliver your main points.
Many email newsletter software vendors offer transactional email support, which gives companies the ability to include promotional messages within the body of transactional emails. There are also software vendors that offer specialized transactional email marketing services, which include providing targeted and personalized transactional email messages and running specific marketing campaigns (such as customer referral programs).
When it comes to designing an email for a specific offer, the main component to keep in mind is the offer itself. You want the copy to be brief but descriptive enough to convey the offer's value. In addition, make sure your email's call-to-action (CTA) link is large, clear, and uses actionable language. You can also include a large CTA image/button underneath to make the action you want email readers to take crystal clear.