watchNS/ayu-net.com/mxについて、ここに記述してください。

$ dnsq mx ayu-net.com ns11.value-domain.com

15 ayu-net.com:
180 bytes, 1+1+3+3 records, response, authoritative, noerror
query: 15 ayu-net.com
answer: ayu-net.com 1200 CNAME blog-01.livedoor.jp
authority: ayu-net.com 1200 NS ns11.value-domain.com
authority: ayu-net.com 1200 NS ns12.value-domain.com
authority: ayu-net.com 1200 NS ns13.value-domain.com
additional: ns11.value-domain.com 1200 A 54.199.222.7
additional: ns12.value-domain.com 1200 A 52.79.97.2
additional: ns13.value-domain.com 1200 A 119.245.243.94

$ dig -t mx ayu-net.com @8.8.8.8

; <<>> DiG 9.9.5-3ubuntu0.13-Ubuntu <<>> -t mx ayu-net.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40152
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ayu-net.com.                   IN      MX

;; ANSWER SECTION:
ayu-net.com.            886     IN      CNAME   blog-01.livedoor.jp.

;; AUTHORITY SECTION:
livedoor.jp.            1594    IN      SOA     ns1.naver.jp. domain.linecorp.com. 2017022200 10800 3600 604800 3600

;; Query time: 123 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Mar 20 23:38:02 JST 2017
;; MSG SIZE  rcvd: 135

blog-01.livedoor.jpはMXを持たないので、こういう返事になる。

ftp.qmail.jp MXを検索してみよ。 -- ToshinoriMaeno 2017-03-20 14:42:04