mail.hacienda.gob.do has no NS records.
NS records for this zone are defined at gob.do.
NS records for this zone are defined at gob.do.
Question and response
Question
dig mail.hacienda.gob.do. NS
Answer
The response has no answer records.
Authority
hacienda.gob.do. 1451 SOA carmelo.ns.cloudflare.com. dns.cloudflare.com. 2399855932 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0