Announcement Only describes a list to which only a select group of people may post messages. These lists will generally be published unless otherwise requested.
Discussion/Distribution describes a list where only the members may post messages much like a forum.
Public Distribution describes a list to which anyone may post messages, just like a regular email address that forwards to multiple recipients. These lists will generally be published unless otherwise requested.
List Subscribers receive messages sent to the lists.
List Owners have the ability to add or remove subscribers.
Adding Subscribers: This form does not allow you to specify the subscribers for your list. After your request is processed a representative from ITS will provide assistance with adding subscribers.