Mailing list members are individuals that have joined a certain list to receive periodic emails, such as weekly newsletters. If the program that is used to manage the mailing list allows it, you can also authorize members manually, but in this case such messages may be recognized as being unsolicited and reported as spam by the recipients. Basically, these mailing list members can unsubscribe from a mailing list by clicking a hyperlink in the email messages they receive, or you, being the mailing list moderator, can delete them manually if they request this or if you reach the decision that some of the members should not be part of the mailing list anymore. Each member will be able to view only their own email address in the "To" field of the emails they receive, but not the addresses of the remaining members of the mailing list.
