docker-mx-server/docker-compose.yml

version: '3.7'

x-common: &common
#  restart: unless-stopped
  env_file:
    - env

services:
    postgresql:
        <<: *common
        build: ./postgresql
        networks:
            main:
                aliases:
                    - postgresql.main.internal.docker
        volumes:
            - ./data/postgresql/data:/var/lib/postgresql/data
        ports:
            - "127.0.0.1:34000:5432"

    postfixadmin:
        <<: *common
        build: ./postfixadmin
        networks:
            main:
                aliases:
                    - postfixadmin.main.internal.docker
        ports:
            - "127.0.0.1:34001:80"

    postfix:
        <<: *common
        build: ./postfix
        networks:
            main:
                aliases:
                    - mail1.example.com
        volumes:
            - ./data/common/certs:/etc/ssl/certs
        ports:
            - "0.0.0.0:25:25"
            - "0.0.0.0:465:465"
            - "0.0.0.0:587:587"

    dovecot:
        <<: *common
        build: ./dovecot
        networks:
            main:
                aliases:
                    - dovecot.main.internal.docker
        volumes:
            - ./data/common/certs:/etc/ssl/certs
            - ./data/dovecot/email:/var/email
        ports:
            - "0.0.0.0:143:143"
            - "0.0.0.0:993:993"
            - "0.0.0.0:4190:4190"

    opendkim:
        <<: *common
        build: ./opendkim
        networks:
            main:
                aliases:
                    - opendkim.main.internal.docker
        volumes:
            - ./data/opendkim/keys:/etc/opendkim/keys

    milter-sasl:
        <<: *common
        build: ./milter-sasl
        networks:
            main:
                aliases:
                  - milter-sasl.main.internal.docker

networks:
    main: