mx01.mirex.gob.do has no NS records.
NS records for this zone are defined at mirex.gob.do.
NS records for this zone are defined at mirex.gob.do.
Question and response
Question
dig mx01.mirex.gob.do. NS
Answer
The response has no answer records.
Authority
mirex.gob.do. 1800 SOA emerie.ns.cloudflare.com. dns.cloudflare.com. 2396943355 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0