services: hmtp: build: . container_name: hmtp ports: - "127.0.0.1:8025:8025" volumes: - ./data:/data restart: unless-stopped # Retries queued deliveries every 5 minutes (cron replacement). flush: build: . entrypoint: ["sh", "-c", "while true; do sleep 300; hmtp flush; done"] volumes: - ./data:/data restart: unless-stopped