ansible-playbooks/roles/common/handlers/smtp.yml

- name: 'Regenerate aliases cache'
  command: 'newaliases'

- name: 'Restart postfix'
  service:
    name: 'postfix'
    state: 'restarted'

- name: 'Rehash slowsmtp transport map'
  command: 'postmap /etc/postfix/transport_slowsmtp'