version: '3.3' services: postfix: image: "registry.mgrote.net/postfix:master@sha256:1d3a194ee7a9cc2b7537ce8142bd9a98dcb1890b33bf5d482eeaa8b347dc9398" 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 # LOG_SUBJECT: "yes" # literal INET_PROTOCOL: ipv4 SMTP_GENERIC_MAP: "/.*/ info@mgrote.net" networks: - mail-relay ######## Networks ######## networks: mail-relay: external: true