docker-compose-mailserver/docker-compose.yml at master · bhorvath/docker-compose-mailserver · GitHub

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version: '3.8'

services:
  postfix:
    image: postfix
    restart: always
    env_file: .env
    environment:
      - TZ=$TZ
    ports:
      - "${LISTEN_IP}:25:25/tcp"
      - "${LISTEN_IP}:587:587/tcp"
    volumes:
      - "/etc/postfix:/etc/postfix"
      - "/etc/letsencrypt/:/etc/letsencrypt"
      - "/var/spool/postfix:/var/spool/postfix"
    logging:
      driver: syslog
      options:
        syslog-facility: mail
  dovecot:
    image: dovecot
    restart: always
    depends_on:
      - "postfix"
    env_file: .env
    environment:
      - TZ=$TZ
      - SUBMISSION_HOST=postfix
    ports:
      - "${LISTEN_IP}:143:143/tcp"
    volumes:
      - "/etc/dovecot:/etc/dovecot"
      - "/etc/letsencrypt:/etc/letsencrypt"
      - "/var/mail:/var/mail"
      - "/var/spool/postfix/private:/var/spool/postfix/private"
    logging:
      driver: syslog
      options:
        syslog-facility: mail