Effective principals are aware of the limitations of using email for communication.
Email is a tool that is best suited for sharing good news or general information.
These are the things you should avoid using email for:
A face-to-face conversation, phone call, or staff meeting are all more suitable than email for handling one or more of the problems listed above.
The thing to remember with email is that even though it feels like you are solving a problem when you press send, you aren't.