When you are composing your message you must tell your email program certain things about the message. First you must type the email address of the recipient. Then you are prompted to type a subject . This is vital as it tells the recipient what the message is about. Always identify yourself in the body of the message.
Email addresses are notoriously vague.
Tell them who you are. Identify the purpose of the email . Tell them why you are writing. Long emails defeat the purpose. Some servers even reject long messages.