version: '3.3' services: postfix: image: registry.mgrote.net/postfix:master container_name: mail-relay restart: always labels: com.centurylinklabs.watchtower.enable: true ports: - 1025:25 environment: SMTP_SERVER: smtp.strato.de SMTP_USERNAME: info@mgrote.net SMTP_PASSWORD: {{ lookup('keepass', 'strato_smtp_password', 'password') }} SERVER_HOSTNAME: mgrote.net # DEBUG: "yes" # literal ALWAYS_ADD_MISSING_HEADERS: "no" # literal OVERWRITE_FROM: info@mgrote.net # LOG_SUBJECT: "yes" # literal INET_PROTOCOL: ipv4 networks: - mail-relay ######## Networks ######## networks: mail-relay: external: true