mxd3.aruba.it has no NS records.
NS records for this zone are defined at aruba.it.
NS records for this zone are defined at aruba.it.
Question and response
Question
dig mxd3.aruba.it. NS
Answer
The response has no answer records.
Authority
aruba.it. 600 SOA arudns1.aruba.it. hostmaster.aruba.it. 2026031201 86400 7200 2592000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0