What is the main reason this e-mail is not appropriate for a formal purpose? While the e-mail contains a proper salutation and closing, the language in the body of the letter is too informal. While the e-mail contains formal language in the body, the salutation is formatted incorrectly and the contact information is missing. While the e-mail contains a proper closing and signature, the salutation is wrong because the heading is missing. While the e-mail contains formal formatting for the salutation and signature, both the body and the closing have formatting errors.