docker-compose.yml

version: '3.8'

services:
  smtp:
    build:
      context: .
      dockerfile: Dockerfile
    restart: unless-stopped
    ports:
      - "25:25"
      - "587:587"
      - "465:465"
      - "2465:2465"
      - "2587:2587"
    environment:
      - NODE_ENV=${NODE_ENV:-production}
      - SMTP_AUTH_USERNAME=${SMTP_AUTH_USERNAME:-bytesend}
      - BYTESEND_BASE_URL=${BYTESEND_BASE_URL:-https://bytesend.cloud}
      # TLS_MODE: 'none' (default) — plain SMTP, suitable behind a reverse proxy
      #           'manual'          — server handles TLS; set cert/key paths below
      - SMTP_TLS_MODE=${SMTP_TLS_MODE:-none}
      # Uncomment and set these when using SMTP_TLS_MODE=manual:
      # - SMTP_TLS_CERT_PATH=${SMTP_TLS_CERT_PATH:-/certs/fullchain.pem}
      # - SMTP_TLS_KEY_PATH=${SMTP_TLS_KEY_PATH:-/certs/privkey.pem}
    # When using manual TLS, mount your cert directory:
    # volumes:
    #   - /etc/letsencrypt/live/smtp.example.com:/certs:ro