docker-compose.mail.yml

version: "3.5"

services:
  mail:
    image: mailserver/docker-mailserver:10
    restart: unless-stopped
    hostname: mail # hostname and domainname may need to be commented on some platforms (e.g. ChromeOS)
    domainname: ${LDAP_DOMAIN}
    container_name: ${COMPOSE_PROJECT_NAME}_mail
    ports:
      - "${SMTPPORT:-25}:25"
      - "${SMTPSPORT:-465}:465"
      - "${MSAPORT:-587}:587"
    volumes:
      - maildata:/var/mail
      - mailstate:/var/mail-state
      - maillogs:/var/log/mail
      - mtaconfig:/tmp/docker-mailserver/
    environment:
      - DMS_DEBUG=0
      - ENABLE_CLAMAV=1
      - ENABLE_FAIL2BAN=1
      - ENABLE_LDAP=1
      - ENABLE_POSTFIX_VIRTUAL_TRANSPORT=1
      - ENABLE_POSTGREY=1
      - ENABLE_SASLAUTHD=1
      - ENABLE_SPAMASSASSIN=1
      - LDAP_BIND_DN=${LDAP_BIND_DN}
      - LDAP_BIND_PW=${LDAP_BIND_PW}
      - LDAP_QUERY_FILTER_ALIAS=${LDAP_QUERY_FILTER_ALIAS}
      - LDAP_QUERY_FILTER_DOMAIN=${LDAP_QUERY_FILTER_DOMAIN}
      - LDAP_QUERY_FILTER_GROUP=${LDAP_QUERY_FILTER_GROUP}
      - LDAP_QUERY_FILTER_USER=${LDAP_QUERY_FILTER_USER}
      - LDAP_SEARCH_BASE=${LDAP_SEARCH_BASE}
      - LDAP_SERVER_HOST=${LDAP_SERVER}
      - ONE_DIR=1
      - PERMIT_DOCKER=connected-networks
      - POSTFIX_DAGENT=lmtp:kopano_dagent:2003
      - PFLOGSUMM_TRIGGER=logrotate
      - POSTMASTER_ADDRESS=${POSTMASTER_ADDRESS}
      - SASLAUTHD_LDAP_BIND_DN=${LDAP_BIND_DN}
      - SASLAUTHD_LDAP_FILTER=${SASLAUTHD_LDAP_FILTER}
      - SASLAUTHD_LDAP_PASSWORD=${LDAP_BIND_PW}
      - SASLAUTHD_LDAP_SEARCH_BASE=${LDAP_SEARCH_BASE}
      - SASLAUTHD_LDAP_SERVER=${LDAP_HOST}
      - SASLAUTHD_MECHANISMS=rimap
      - SASLAUTHD_MECH_OPTIONS=kopano_gateway
      - SMTP_ONLY=1
      - SPAMASSASSIN_SPAM_TO_INBOX=1
      - SSL_TYPE=self-signed
      - TZ=${TZ}
    env_file:
      - mail.env
    networks:
      - kopano-net
    # dns: 1.1.1.1  # using Google DNS can lead to lookup errors uncomment this option and
    # set to the ip of a trusted dns service (Cloudflare is given as an example).
    # See https://github.com/zokradonh/kopano-docker/issues/52 for more information.
    cap_add:
      - NET_ADMIN
      - SYS_PTRACE

  kopano_spooler:
    depends_on:
      - mail

volumes:
  maildata:
  mailstate:
  maillogs:
  mtaconfig: