The document discusses the key components of a professional email, including the email address, subject box, body, and attachments. It provides guidance on creating an appropriate email address that properly identifies the sender. The subject box should be very short and indicate the main topic and action for the receiver. The body of a formal email includes a heading, salutation, 5-paragraph text with an introduction, purpose, action, rationale, and conclusion, and a signature. Attachments should include a brief description of the content, sender, date, and version number. Proper formatting and polite, clear language are emphasized.