ansible-role-common/tasks/communication.yml

---
- name: Postfix Configuration
  block:
    - name: postfix | Apply postfix configuration
      lineinfile:
        dest: "{{ item.dest }}"
        regexp: "{{ item.regexp }}"
        line: "{{ item.line }}"
        insertafter: EOF
      notify: Restart Postfix
      when: "'SMTP0' not in inventory_hostname"
      with_items:
        - {
            dest: /etc/postfix/main.cf,
            regexp: "^.?inet_protocols =",
            line: "inet_protocols = ipv4",
          }
        - {
            dest: /etc/postfix/main.cf,
            regexp: "^.?inet_interfaces =",
            line: "inet_interfaces = all",
          }
        - {
            dest: /etc/postfix/main.cf,
            regexp: "^.?relayhost =",
            line: "relayhost = {{ relayhost }}",
          }
        - {
            dest: /etc/postfix/main.cf,
            regexp: "^.?smtp_randomize_addresses =",
            line: "smtp_randomize_addresses = no",
          }

    - name: postfix | Ensure Postfix is Started/Enabled
      service:
        name: postfix
        state: started
        enabled: yes
  when: postfix_configure

- name: Ensure root forwarding address is set
  lineinfile:
    dest: ~/.forward
    regexp: "{{ common_root_email }}"
    line: "{{ common_root_email }}"
    create: yes