What is a Mailing List?

In Summary:

A mailing list is a way to communicate and share information with many people via electronic mail. People join mailing lists by subscribing, which allows them to receive all messages sent to that list. Mailing lists may be moderated, restricted, or open and unmoderated.

Working with mailing lists usually involves at least two e-mail addresses: an administrative address for subscription requests and other administrative functions, and the list address, where subscribers send messages for distribution and sharing. In most cases, the administrative actions are handled by list management software.