What is the first part of a letter: Heading. How do we begin a letter: Greeting. What part of the letter contains the message: Body. What part of the letter signifies the end of the letter: Closing. What part of the letter includes your name: signature. What should you include in the heading: the date. Which of these is correct: Dear Toby,. Which of these closings in correct: Sincerely,. The writer's message is known as the _____: body. Which of the following is an example of a greeting: Dear Phillip, . Which of the following would be an example of a closing? : Yours Truly, . What part of the letter is this: Body