mailing list
noun [ C ]
ukus(US also mail list) MARKETING
a list of names and addresses to which a person or company can send information or advertising, either electronically or on paper:
put sb on a mailing list I asked to be put on their mailing list.
INTERNET (also discussion list)
a computer program that sends and receives electronic messages from anyone in a group to everyone else in the group:
Complaints on the departmental mailing list shows that a lot of people are having the same frustrations as you are.