Outline an effective strategy for writing routine replies and positive messages.

Readers receiving routine replies and positive messages will generally be interested in what you have to say, so you'll usually use the direct approach. Place your main idea (the positive reply or the good news) in the opening. Use the body to explain all the relevant details, and close cordially, perhaps highlighting a benefit to your reader.
By opening with the main idea or good news, you prepare your audience for the details that follow. Make your opening clear and concise.
Use the body to explain your point completely so that your audience won't be confused or doubtful about your meaning. As you provide the details, maintain the supportive tone established in the opening. However, if your routine message is mixed and must convey mildly disappointing information, put the negative portion of your message into as favourable a context as possible. However, if the negative news is likely to be a shock or particularly unpleasant for the reader, you'll want to use the indirect approach.
Your message is more likely to succeed if it leaves your readers with the feeling that you have their best interests in mind. You can accomplish this by highlighting a benefit to the audience or by expressing appreciation or goodwill. If follow-up action is required, clearly state who will do what next.