If you maintain large e-mail lists, consider the following guidelines. Create a policy for use of your list. State the purpose of the list in the brief description you provide when creating the list. You may also want to send occasional reminders telling subscribers what is and is not an appropriate posting to the list. Aggregate and format composite messages.
Composite messages pull together many postings of shorter messages.
While they are longer than a typical message, they cut down on volume and also serve as a useful summary. This way, the message is less likely to get lost in the daily stream of incoming mail. Use alternative forms of communication. Examples of other venues include the newly released Events Calendar and department or group Web pages.