openmail.estracom.it has no NS records.
NS records for this zone are defined at estracom.it.
NS records for this zone are defined at estracom.it.
Question and response
Question
dig openmail.estracom.it. NS
Answer
The response has no answer records.
Authority
estracom.it. 600 SOA dns01.estracom.it. gmarco.dns01.estracom.it. 2026030101 7200 1800 3600000 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0