The Mailman listserve allows you to create and moderate an email list. A member may send a message to the listserve and have it redistributed to everyone on the list. This greatly facilitates discussion using email among a class, department, organization, or user community.

To have your own list created for you, fill out and submit a listserve request form. You will be the manager of your list.

FYI there is documentation on how to manage your list. See both the Quick Reference Guide and the Manager's Guide.