CPanel Mailing List Administration
From Harmony Lists KB
First, login to CPanel either at domain.com/cpanel or through the support area CPanel link.
Once in cPanel, under "Email" -> "Mailing Lists" there are links to "Manage" your list and "Change Password" for the Mailman admin.
With the Mailman admin password, you can also go directly to the list's admin page.
Assuming your list email address is "mylist@list.domain.com", the list admin URL will be as follows.
https://list.domain.com/mailman/admin/mylist_list.domain.com/
