vn-ansible/roles/debian-base/tasks/relayhost.yml

- name: Install exim packages
  apt:
    name: exim4
    state: present
- name: Prepare exim configuration
  lineinfile:
    dest: /etc/exim4/update-exim4.conf.conf
    regexp: "{{ item.regexp }}"
    line: "{{ item.line }}"
    state: present
    mode: 0644
  with_items:
    - regexp: '^dc_eximconfig_configtype'
      line: "dc_eximconfig_configtype='satellite'"
    - regexp: '^dc_other_hostnames'
      line: "dc_other_hostnames='{{ ansible_fqdn }}'"
    - regexp: '^dc_local_interfaces'
      line: "dc_local_interfaces='127.0.0.1'"
    - regexp: '^dc_readhost'
      line: "dc_readhost='{{ ansible_fqdn }}'"
    - regexp: '^dc_relay_domains'
      line: "dc_relay_domains=''"
    - regexp: '^dc_minimaldns'
      line: "dc_minimaldns='false'"
    - regexp: '^dc_relay_nets'
      line: "dc_relay_nets=''"
    - regexp: '^dc_smarthost'
      line: "dc_smarthost='{{ smtp_server }}'"
    - regexp: '^CFILEMODE'
      line: "CFILEMODE='644'"
    - regexp: '^dc_use_split_config'
      line: "dc_use_split_config='false'"
    - regexp: '^dc_hide_mailname'
      line: "dc_hide_mailname='true'"
    - regexp: '^dc_mailname_in_oh'
      line: "dc_mailname_in_oh='true'"
    - regexp: '^dc_localdelivery'
      line: "dc_localdelivery='mail_spool'"
  notify: restart-exim
  register: exim_config
- name: Update exim configuration
  command: update-exim4.conf
  when: exim_config.changed
- name: Sending mail to verify relay host configuration works
  shell: >
    echo "If you see this message, relayhost on {{ ansible_fqdn }} has been configured correctly." \
      | mailx -s "Relayhost test for {{ ansible_fqdn }}" "{{ sysadmin_mail }}"
  when: exim_config.changed