Mailing list members are users that get mass emails, including weekly or monthly newsletters. Based on the mailing list management software application that’s used to manage a certain list, they may have registered personally, expressing their categorical permission to be added to the mailing list, or they may have been added manually. The latter means that they will de facto get unsolicited emails. Usually, mailing list members can be managed by the mailing list administrator who can authorize or remove them, or they can manually unsubscribe if they do not want to receive email messages from now on. All mailing list subscribers will always receive the same message on the condition that they are part of one and the same mailing list, but a single member will never be able to view the rest of the mailing list members in the "To" field of the email message.