혹시 준등기는 조회만 가능하시고 우체국에서 연락없이 우편함에 배달되는데 괜찮으신 거죠? => I presume you're okay with certified mail, which offers tracking but no personal notification from the post office. * 준등기 (우편) = semi(준)-registered (mail), called "certified" in some countries. * 조회 = tracking.