---
- name: Install dovecot
  apt:
    name:
      - dovecot-core
      - dovecot-imapd
      - dovecot-lmtpd
      - dovecot-managesieved
      - dovecot-sieve

- name: Create group vmail for dovecot
  group:
    name: vmail

- name: Create account vmail for dovecot
  user:
    group: vmail
    home: /srv/mail
    name: vmail
    password: "!"
    system: true

- name: Configure dovecot main configuration
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: "{{ item.group }}"
    mode: "{{ item.mode }}"
  loop:
    - src: dovecot.conf.j2
      dest: /etc/dovecot/dovecot.conf
      group: root
      mode: u=rw,g=,o=
    - src: auth.j2
      dest: /etc/dovecot/auth
      group: dovecot
      mode: u=rw,g=r,o=
  notify:
    - Reload dovecot

- name: Enable and start dovecot
  systemd:
    name: dovecot.service
    state: started
    enabled: true
...