Read the formal e-mail. Dear Mr. Townsend,

Our neighborhood watch group would like to accept your offer to visit with our group next month. Your proposed presentation addresses many of the issues that are of immediate concern to our group. Given your impressive credentials, we value your input and look forward to your presentation. To solidify the details, please use my contact information below to contact me.

Sincerely,
Marissa Lee

What is the main reason this e-mail is not appropriate for a formal purpose?

1.) While the e-mail contains a proper salutation and closing, the language in the body of the letter is too informal.
2.) While the e-mail contains formal language in the body, the salutation is formatted incorrectly and the contact information is missing.
3.) While the e-mail contains a proper closing and signature, the salutation is wrong because the heading is missing.
4.) While the e-mail contains formal formatting for the salutation and signature, both the body and the closing have formatting errors.