How To Write A Letter Of Business Going All Email . If you think of something else you want to say, or if you’re reminded of another message to include, consider drafting a separate message for it. But in a formal environment, each email should only have one topic. Apply For A Job Email Title from kcgarza.com A typical heading for a business letter includes: Thank you again for your leadership, and i wish nothing but the best for you and the team. Make it brief and friendly, and address the recipient by name if you know it.