A few methods of emphasizing your point when writing a business message are using things like italics, bold, underscores, caps, and alternate fonts and colors. These things will bring attention to the importance of your main points in a subtle way. You should always use these things with some sort of discretion though as to not distract the readers of your business message. The use of bullet points and lists can be very helpful in emphasizing your main point in a business message. The lists and bullet points should not be too wordy though and should be concise and neat allowing the speaker to openly expand on them in free dialogue with their audience.