version: '3.9'

services:
  dovecot:
    build:
      context: .
      dockerfile: dovecot/Dockerfile
    container_name: mailstack-dovecot
    ports:
      - "1143:143"   # IMAP
      - "1993:993"   # IMAPS
    volumes:
      - vmail:/var/mail/vhosts
    networks:
      - mailstack

  postfix:
    build:
      context: .
      dockerfile: postfix/Dockerfile
    container_name: mailstack-postfix
    ports:
      - "1025:25"     # SMTP
      - "1587:587"    # SMTP + AUTH
      - "1465:465"    # SMTPS
    volumes:
      - vmail:/var/mail/vhosts
    networks:
      - mailstack
    depends_on:
      - dovecot

volumes:
  vmail:

networks:
  mailstack:
    driver: bridge