version: '2.1'
services:

    nginx-mailcow:
      environment:
        - LETSENCRYPT_HOST=${MAILCOW_HOSTNAME},${ADDITIONAL_SAN}
        - LETSENCRYPT_EMAIL=${LETSENCRYPT_EMAIL}
        - VIRTUAL_HOST=${MAILCOW_HOSTNAME},${ADDITIONAL_SAN}
        - VIRTUAL_PROTO=http 
        - VIRTUAL_PORT=80
      networks:
        webproxy:


networks:
  webproxy:
    external:
      name: webproxy