mx.diariodovale.com has no NS records.
NS records for this zone are defined at diariodovale.com.
NS records for this zone are defined at diariodovale.com.
Question and response
Question
dig mx.diariodovale.com. NS
Answer
The response has no answer records.
Authority
diariodovale.com. 3600 SOA dns.diariodovale.com. hostmaster.diariodovale.com. 1230674916 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0