Question and response
Question
dig mpub.ne.jp. MX
Answer
mpub.ne.jp. 3600 MX 10 rmta1c.mpub.jp.
Authority
mpub.ne.jp. 172800 NS ns-1192.awsdns-21.org.
mpub.ne.jp. 172800 NS ns-1561.awsdns-03.co.uk.
mpub.ne.jp. 172800 NS ns-264.awsdns-33.com.
mpub.ne.jp. 172800 NS ns-660.awsdns-18.net.
Additional
rmta1c.mpub.jp. 300 A 165.100.253.253
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0