mail.colegioninosdelrey.edu.do has no NS records.
NS records for this zone are defined at edu.do.
NS records for this zone are defined at edu.do.
Question and response
Question
dig mail.colegioninosdelrey.edu.do. NS
Answer
The response has no answer records.
Authority
colegioninosdelrey.edu.do. 3939 SOA dns4.midominio.do. sixtogonzalezh.gmail.com. 2020091512 7200 7200 172800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0