version: "3" services: postfix: build: postfix image: r.sbruder.de/postfix restart: always environment: - MYHOSTNAME=mail.example.com - MYDOMAIN=example.com - MAIL_NAME=sbrudermail - MESSAGE_SIZE_LIMIT=15360000 - DOMAINS=example.com example.net - POSTMASTER=postmaster@example.com - LDAP_SERVER=ldap.example.com - LDAP_BASE=ou=users,dc=example,dc=com - LDAP_USER=cn=readonly,dc=example,dc=com - LDAP_PASSWORD=v3rys3cur3 volumes: - ./aliases.d:/etc/postfix/aliases.d - ../web/certs/mail.example.com/:/tls/:ro - ./spool/postfix:/var/spool/postfix - dhparams:/etc/postfix/dh-params ports: - "25:25" - "587:587" depends_on: - dovecot dovecot: build: dovecot image: r.sbruder.de/dovecot restart: always environment: - LDAP_SERVER=ldap.example.com - LDAP_BASE=ou=users,dc=example,dc=com - LDAP_USER=cn=readonly,dc=example,dc=com - LDAP_PASSWORD=v3rys3cur3 volumes: - ./vmail/:/var/vmail/ - ../web/certs/mail.example.com/:/tls/:ro - dhparams:/etc/dovecot/dh-params ports: - "143:143" volumes: dhparams: {}