What are you trying to accomplish?
When every communication starts with an answer to that question, the odds of success are much higher. How will you know if your communication is successful if you are unsure what you’re trying to accomplish? This is a key difference between “responding” and “reacting.” That flame-mail you sent was a reaction. If you had asked yourself, “What do I want to accomplish with this e-mail?” you likely would have done it differently. Answer the question, “What do I want my audience (even if it’s just one person) to do, feel, or think?”