The way you start your message is very much dependent on your relationship between you and your recipient. If you normally call them by name then address them by name. If you are unsure, stick to the formal salutation. Body Text Messages should be concise and to the point. Use short paragraphs with breaks in between.
White space makes long text easier to read.
Be careful about the way you express yourself in a message, especially if you feel heated about an issue. Never shoot off a quick response to some issue. Once you press the send button there is no way you can retrieve back. Formatting Never type your messages in all uppercase letters. Capitalizing whole words that are not titles is the equivalent of shouting.