mail.jetc.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.jetc.edu.do. NS
Answer
The response has no answer records.
Authority
jetc.edu.do. 6053 SOA ns4235.hostgator.com. root.gator2118.hostgator.com. 2026030101 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0