[Mailman-Users] Creation of closed, announce-only (one way) lists

[Forrest Aldrich]

I need to create several lists that are to be used for maintenance 
announcements (customers) only.  Where the list would have a membership, 
but where nobody but the moderator can post to it.   And closed in all 
other ways.

I've seen other people set up project-announce lists where replies get 
posted to everyone.  I suppose one can just make it a moderated list and 
then have all submissions go to the moderator in the simplest case.
???

Is there a way to accomplish this with mailman?

I also am concerned about the public having access to the mailman 
program... I suppose that can be restricted at the MTA level with a few 
sendmail rules, based upon the IP network you're sending from.


TIA