mailing list
Plural
mailing lists
1
a list of names and addresses to which advertising material, information, etc. may be mailed regularly
2
a list of names and email addresses stored on a computer that one can send mail at the same time to all of them
A mailing list is a collection of email addresses used to send messages to a group of people at once. It is commonly used by businesses, organizations, or individuals to share updates, newsletters, or announcements with many recipients simultaneously. Mailing lists help ensure that information reaches everyone on the list efficiently. Subscribers typically join a mailing list voluntarily, and they can usually unsubscribe if they no longer wish to receive the messages.