Question and response
Question
dig mx151.cntcloud.com. SRV
Answer
The response has no answer records.
Authority
cntcloud.com. 3600 SOA ns21.domaincontrol.com. dns.jomax.net. 2026020502 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0