mox/docker-compose.yml

# Before launching mox, run the quickstart to create config files:
#
# 	MOX_UID=0 MOX_GID=0 docker-compose run mox mox quickstart you@yourdomain.example
#
# After following the instructions, start mox as the newly created mox user:
#
# 	MOX_UID=$(id -u mox) MOX_GID=$(id -g mox) docker-compose up

version: '3.7'
services:
  mox:
    # Replace latest with the version you want to run.
    image: moxmail/mox:latest
    user: ${MOX_UID}:${MOX_GID}
    environment:
      - MOX_DOCKER=... # Quickstart won't try to write systemd service file.
    # Mox needs host networking because it needs access to the IPs of the
    # machine, and the IPs of incoming connections for spam filtering.
    network_mode: 'host'
    command: sh -c "umask 007 && exec mox serve"
    volumes:
      - ./config:/mox/config
      - ./data:/mox/data
    working_dir: /mox
    restart: on-failure
    healthcheck:
      test: netstat -nlt | grep ':25 '
      interval: 1s
      timeout: 1s
      retries: 10