- set_fact:
    current_list: "{{ {}|combine(mailman.list_defaults, {'name': listname}, mailman.lists[listname], recursive=True) }}"

- name: "setup mailing list ( {{ current_list.name }} )"
  mailman_list:
    api_url: "http://{{ mailman.api.hostname }}:{{ mailman.api.port }}/{{ mailman.api.version }}"
    api_user: "{{ mailman.api.admin.name }}"
    api_password: "{{ mailman.api.admin.pw }}"
    name: "{{ current_list.name }}"
    settings: "{{ current_list.settings }}"