Currently, subscription to this list requires approval of the list owner. After subscribing to this list, you can send email messages to all of the people who are currently subscribed. You can use all lowercase, all uppercase, or a combination of both in the email address. It is not case sensitive. Open allows people to subscribe themselves to the list.
Auto allows anybody to subscribe anybody to the list without list-owner approval.
Closed requires list-owner approval for all subscribe requests to the list. When contacting the Data Center to request that your list be created, inform them of the subscribing policy that you want. When you have completed the above steps, please contact Contact the Data Center.