email not being blocked

export default {
  async email(message, env, ctx) {
    const block = ["[email protected]"]
    if (block.indexOf(message.headers.get("from")) == -1) {
      console.log("done")
      await message.forward("[email protected]");
      console.log("done yes")
    } else {
      console.log("blocked")
      message.setReject("Address is blocked");
      console.log("blocked yes")
    }
  }
}