A mailing list is a group of addresses which can all be reached using a single e-mail address.
Mailing lists are like a group discussion, but more specific in nature than a newsgroup.
They are administered by a mailing list server program residing on the CSTL server. The mailing list server is a program that automates the administration of mailing lists. E-mail messages are sent to the server which, in turn, sends the messages to all subscribers of the list. To help automate the administration of the list, mailing list servers accept control messages from mailing list subscribers to subscribe, unsubscribe, and perform other mailing list functions. Mailing list servers usually run 24 hours a day to keep the flow of mail to the list constant.