rh358/smtp-review/playbook.yml

---
- name: Configure Null Client Email Service
  become: true
  hosts: all

  vars:
    postfix_conf:
      relayhost: '[smtp.lab.example.com]'
      inet_interfaces: 'loopback-only'
      mynetworks: '127.0.0.0/8 [::1]/128'
      myorigin: 'lab.example.com'
      mydestination: ''

  roles:
    - linux-system-roles.postfix