The focus of the list can be as general or as narrow as you need it to be. Lists can be either open or restricted. Open lists are available to anyone in the world. Restricted lists are accessible to only a select group of users that is determined by the list manager. The list manager must manually subscribe each user to restricted lists.
Lists can also be unmoderated or moderated.
Messages sent to an unmoderated list are posted to the list automatically. A message sent to a moderated list is redirected to the list manager. The list manager then reviews the message to make sure that the content is within the focus of the list, and that it is not a repeat of recent discussion. If the content is acceptable, the list manager then posts the message to the list. The list manager should be a permanent employee of the University and someone that you can depend on to read e-mail regularly.