pop3.dvc.it has no NS records.
NS records for this zone are defined at dvc.it.
NS records for this zone are defined at dvc.it.
Question and response
Question
dig pop3.dvc.it. NS
Answer
The response has no answer records.
Authority
dvc.it. 360 SOA ns3.contonuvolastore.impresasemplice.it. ced.dvc.it. 1773117083 10800 3600 604800 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0