mx.jinyaoshangmao.com has no NS records.
NS records for this zone are defined at jinyaoshangmao.com.
NS records for this zone are defined at jinyaoshangmao.com.
Question and response
Question
dig mx.jinyaoshangmao.com. NS
Answer
The response has no answer records.
Authority
jinyaoshangmao.com. 3600 SOA dns.jinyaoshangmao.com. hostmaster.jinyaoshangmao.com. 1294351422 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0