- name: install email software
  ansible.builtin.package:
    name:
      - mutt
      - urlview
      - exim4
- name: set up "group" users
  ansible.builtin.user:
    name: "{{ item.key }}"
  loop: "{{ mail_groups | dict2items }}"
  loop_control:
    label: "{{ item.key }}"
- name: set up "group" alias
  ansible.builtin.blockinfile:
    path: /etc/aliases
    block: |
      root: {{ root_alias }}
      {% for group, members in mail_groups.items() %}
      {{ group }}: {{ members | join(', ') }}, {{ group }}
      {% endfor %}