Which of the things below should you NEVER ever do in a professional email?

Well, if you have committed cold-blooded murder and you’re not in prison, then you’re probably not willing to admit to it anyway. But then there’s insulting someone. Remember, you should NEVER insult a person via email. Though it sounds like a given, sometimes our anger gets the best of us. When it happens, don’t forget to take a deep breath and don’t let a small office quarrel stain your career.