webmail.fad.uncu.edu.ar has no NS records.
NS records for this zone are defined at uncu.edu.ar.
NS records for this zone are defined at uncu.edu.ar.
Question and response
Question
dig webmail.fad.uncu.edu.ar. NS
Answer
The response has no answer records.
Authority
fad.uncu.edu.ar. 114 SOA ns1.fad.uncu.edu.ar. root.fad.uncu.edu.ar. 202312199 300 86400 2419200 604800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0