library.koganei.tokyo.jp IN MX smtp.library.koganei.tokyo.jp. library.koganei.tokyo.jp IN NS dns101-1.jp1.ecl.ntt.com. library.koganei.tokyo.jp IN NS dns101-2.uk1.ecl.ntt.com. library.koganei.tokyo.jp IN NS dns101-3.us1.ecl.ntt.com. library.koganei.tokyo.jp IN NS dns101-4.sg1.ecl.ntt.com.