By default, when you create a mailing list, everyone may send
correspondence to this list. If you need to configure a mailing list
that only members are allowed to send mail to, you can do this through
the WEB Mailman interface.
To configure a mailing list that only members are allowed to post to:
- Log in to the WEB Mailman interface as the list administrator.
- Enable the Restrict posting privilege to list members option.
Note: By default a mailing list is created with the Posts must be
approved by an administrator option enabled. That means all
messages must be approved by the moderator before they are posted to
the list. Therefore, if this option is disabled and unwanted mail is
posted to the list, you can re-enable it and moderate incoming
messages.
For more information, please see Mailman documentation at:
http://www.gnu.org/software/mailman/docs.html.