E-mail is a great medium for communicating simple facts, figures, and actions. It is best written in short, declarative sentences. It is not best for socializing, explaining, or instructing. Especially in a work context. That’s best done face-to-face, or if need be, over the phone.
You can help other (and yourself of course) by keeping your e-mail relevant. Relevant e-mails get better results.
You may also be interested in:
E-Mail Made Simple: tricks for getting through the daily e-mail storm
Career Gotchas: guidelines for keeping your e-mail use professional
What Goes In An E-Mail: and when you shouldn’t send that pithy rocket that will make stupid people quiver in their booties.