mail.disesa.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.disesa.edu.do. NS
Answer
The response has no answer records.
Authority
disesa.edu.do. 4869 SOA ns70.dnns.net. it.dominet.net. 2026021501 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0