[Mailman-Users] Changing host_name for mailman

[Dr. Thomas C. Eagle]

I want the host domain to be "list.newsummit.org" while my real host domain is "eaglesystems.newsummit.org"   How do I make the change to be "list.newsummit.org"?   Can it be done?  If is can, where do I make the changes.   Thanks, Tom Eagle