[Mailman-Users] How do I change the footer and owner email address?

[Me Myself]

I'm using cpanel and RHL.

The URL at the bottom of the mailman mailings (that's supposed to go to our
mailman page) is incorrect and produces a 404.  Emails also that are
supposed to go to mailman-owner are going to our web host postmaster
instead.

How do I correct this?

Thanks in advance.