mx.meiwei3.com has no NS records.
NS records for this zone are defined at meiwei3.com.
NS records for this zone are defined at meiwei3.com.
Question and response
Question
dig mx.meiwei3.com. NS
Answer
The response has no answer records.
Authority
meiwei3.com. 3600 SOA dns.meiwei3.com. hostmaster.meiwei3.com. 1674626678 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0