A mailing list is a facility whereby a message sent to a special address, the list posting address, is redistributed to a number of other addresses, the list members' addresses.
About the centrally provided mailing list service.
Availability and entitlement
The policy on provision of mailing lists to staff and students.
Using the Sympa mailing list service for users and list owners
Managing and administering email lists using the Sympa lists service.
Getting further assistance
Where to go for help if the documentation doesn't answer your question.