docker-compose.sample.yml

version: "3"

# IPv4 only
# docker network create http_network

# IPv4/IPv6 network
# docker network create http_network --ipv6 --subnet "fd00:0000:0000:0000::/64"
# Refer to https://github.com/AliKhadivi/mailserver/#ipv6-support for more information.

networks:
  http_network:
    external: true
  mail_network:
    external: false
services:
  mailserver:
    image: alikhadivi/mailserver:${MAILSERVER_DOCKER_TAG}
    restart: ${RESTART_MODE}
    domainname: ${MAILSERVER_DOMAIN} # Mail server A/MX/FQDN & reverse PTR = mail.domain.tld.
    hostname: ${MAILSERVER_HOSTNAME}
    # extra_hosts:                          - Required for external database (on other server or for local databases on host without docker)
    #  - "mariadb:xx.xx.xx.xx"              - Replace with IP address of MariaDB server
    #  - "redis:xx.xx.xx.xx"                - Replace with IP address of Redis server
    ports:
      - "25:25"       # SMTP                - Required
      - "110:110"     # POP3       STARTTLS - Optional - For webmails/desktop clients
      - "143:143"     # IMAP       STARTTLS - Optional - For webmails/desktop clients
      - "465:465"     # SMTPS      SSL/TLS  - Optional - Enabled for compatibility reason, otherwise disabled
      - "587:587"     # Submission STARTTLS - Optional - For webmails/desktop clients
      - "993:993"     # IMAPS      SSL/TLS  - Optional - For webmails/desktop clients
      - "995:995"     # POP3S      SSL/TLS  - Optional - For webmails/desktop clients
      - "4190:4190"   # SIEVE      STARTTLS - Optional - Recommended for mail filtering
      - "7513:11334"
    environment:
      - DBPASS=${DATABASE_USER_PASSWORD}       # MariaDB database password (required)
      - RSPAMD_PASSWORD=${RSPAMD_PASSWORD}     # Rspamd WebUI password (required)
      - ENABLE_POP3=true                       # Enable POP3 protocol
    # - ADD_DOMAINS=aa.tld, www.bb.tld...      # Add additional domains separated by commas (needed for dkim keys etc.)
    # - DEBUG_MODE=true                        # Enable Postfix, Dovecot, Rspamd and Unbound verbose logging
    # - ENABLE_FETCHMAIL=true                  # Enable fetchmail forwarding
    # - DISABLE_RATELIMITING=false             # Enable ratelimiting policy
    # - DISABLE_CLAMAV=true                    # Disable virus scanning
    # - DISABLE_SIGNING=true                   # Disable DKIM/ARC signing
    # - DISABLE_GREYLISTING=true               # Disable greylisting policy
    #
    # Full list : https://github.com/AliKhadivi/mailserver#environment-variables
    #
    volumes:
      - /etc/letsencrypt:/etc/letsencrypt:ro
      - ${VOLUMES_ROOT_PATH}/mail:/var/mail
    depends_on:
      - mariadb
      - redis
    networks:
      - mail_network
      - http_network

  # Administration interface
  # http://postfixadmin.sourceforge.net/
  postfixadmin:
    image: postfixadmin:${POSTFIXADMIN_DOCKER_TAG}
    restart: ${RESTART_MODE}
    domainname: ${MAILSERVER_DOMAIN}
    hostname: ${MAILSERVER_HOSTNAME}
    ports:
      - 7512:80
    environment:
      POSTFIXADMIN_DB_TYPE: mysqli
      POSTFIXADMIN_DB_HOST: mariadb
      POSTFIXADMIN_DB_USER: postfix
      POSTFIXADMIN_DB_NAME: postfix
      POSTFIXADMIN_DB_PASSWORD: "${DATABASE_USER_PASSWORD}"
      POSTFIXADMIN_SMTP_SERVER: mailserver
      POSTFIXADMIN_SMTP_PORT: 25
      POSTFIXADMIN_ENCRYPT: md5crypt
      POSTFIXADMIN_SETUP_PASSWORD: "${POSTFIXADMIN_SETUP_PASSWORD}"
    depends_on:
      - mailserver
      - mariadb
    networks:
      - mail_network
      - http_network

  # Webmail (Optional)
  # Documents: https://hub.docker.com/r/roundcube/roundcubemail/
  roundcube:
    image: roundcube/roundcubemail:${ROUNDCUBE_DOCKER_TAG}
    domainname: ${MAILSERVER_DOMAIN}
    hostname: webmail.${MAILSERVER_DOMAIN}
    ports:
      - 7511:80
    environment:
      - ROUNDCUBEMAIL_DB_TYPE=mysql
      - ROUNDCUBEMAIL_DB_HOST=webmaildb
      - ROUNDCUBEMAIL_DB_NAME=roundcube
      - ROUNDCUBEMAIL_DB_USER=roundcube
      - ROUNDCUBEMAIL_DB_PASSWORD=${WEBMAIL_DATABASE_USER_PASSWORD}
      # - ROUNDCUBEMAIL_DB_TYPE=sqlite
      - ROUNDCUBEMAIL_SKIN=elastic
      - ROUNDCUBEMAIL_DEFAULT_HOST=tls://${MAILSERVER_HOSTNAME}.${MAILSERVER_DOMAIN}
      - ROUNDCUBEMAIL_SMTP_SERVER=tls://${MAILSERVER_HOSTNAME}.${MAILSERVER_DOMAIN}
    restart: ${RESTART_MODE}
    volumes:
      - ${VOLUMES_ROOT_PATH}/roundcube/www:/var/www/html
      # - ${VOLUMES_ROOT_PATH}/roundcube/db:/var/roundcube/db
    depends_on:
      - mailserver
      - webmaildb
    networks:
      - mail_network
      - http_network

  # Database
  # https://github.com/docker-library/mariadb
  # https://mariadb.org/
  mariadb:
    image: mariadb:${MAIRADB_DOCKER_TAG}
    restart: ${RESTART_MODE}
    # Info : These variables are ignored when the volume already exists (if databases was created before).
    environment:
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
      - MYSQL_DATABASE=postfix
      - MYSQL_USER=postfix
      - MYSQL_PASSWORD=${DATABASE_USER_PASSWORD}
    volumes:
      - ${VOLUMES_ROOT_PATH}/mysql/db:/var/lib/mysql
    networks:
      - mail_network

  webmaildb:
    image: mariadb:${MAIRADB_DOCKER_TAG}
    restart: ${RESTART_MODE}
    # Info : These variables are ignored when the volume already exists (if databases was created before).
    environment:
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
      - MYSQL_DATABASE=roundcube
      - MYSQL_USER=roundcube
      - MYSQL_PASSWORD=${WEBMAIL_DATABASE_USER_PASSWORD}
    volumes:
      - ${VOLUMES_ROOT_PATH}/roundcube/db:/var/lib/mysql
    networks:
      - mail_network


  # Database
  # https://github.com/docker-library/redis
  # https://redis.io/
  redis:
    image: redis:${REDIS_DOCKER_TAG}
    restart: ${RESTART_MODE}
    command: redis-server --appendonly yes
    volumes:
      - ${VOLUMES_ROOT_PATH}/redis/db:/data
    networks:
      - mail_network