DNS/1/delegation/nodataについて、ここに記述してください。

../referral ../nodata2

AA on, Answer 空、SOA in Auth. (NS in Auth ) 

%dig xxxxx.qmail.jp @a.ns.qmail.jp                             ~/dnsq/1210

; <<>> DiG 9.12.1 <<>> xxxxx.qmail.jp @a.ns.qmail.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57066
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;xxxxx.qmail.jp.                        IN      A

;; AUTHORITY SECTION:
qmail.jp.               900     IN      SOA     a.ns.qmail.jp. hostmaster.m.qmail.jp. 1544367874 16384 2048 1048576 900
qmail.jp.               259200  IN      NS      b.ns.qmail.jp.

;; ADDITIONAL SECTION:
b.ns.qmail.jp.          172800  IN      A       14.192.44.5

;; Query time: 0 msec
;; SERVER: 14.192.44.5#53(14.192.44.5)
;; WHEN: Thu Dec 13 08:58:13 JST 2018
;; MSG SIZE  rcvd: 118