[Mailman-Users] send only lists

I've not upgraded to the absolute latest, but I'm not too far behind.

We have a number of "announcement" lists.

Am I missing a way to tell Mailman that this is an announcement list? What I expect is that the listinfo screen would stop saying "To post a message to all the list members, send email to listaddress@mydomain.dom" if it is restricted. Yeah, we say in the description that it is read-only, and that only certain people can post to it, but that instruction is still there just below it.