Title: How do I limit postings to my list so that only subscribers can post? Question: I'm trying to limit messages sent to my list so that only current members and owners can post. How do I do that? Answer: Mailman allows you to choose what to do with incoming messages. Go to your list's administration pages at: http://lists.nmsu.edu/mailman/admin/listname where "listname" is replaced by the actual name of your list. Log in with your owner list password. Then click on "Privacy Options" and go to "Sender Filters." The second to last option will allow you to decide what to do with mail from non-subscribers. "Reject" and "Discard" will both prevent the mail from going to the list, but "Reject" will send a notice to the sender, whereas "Discard" will be silent.