mail.gigaantest01.awk.jp has no NS records.
NS records for this zone are defined at gigaantest01.awk.jp.
NS records for this zone are defined at gigaantest01.awk.jp.
Question and response
Question
dig mail.gigaantest01.awk.jp. NS
Answer
The response has no answer records.
Authority
gigaantest01.awk.jp. 300 SOA ns.gigaantest01.awk.jp. h\.ota.itboost.co.jp. 1679968785 14400 60 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0