mail3.semacustomers.it has no NS records.
NS records for this zone are defined at semacustomers.it.
NS records for this zone are defined at semacustomers.it.
Question and response
Question
dig mail3.semacustomers.it. NS
Answer
The response has no answer records.
Authority
semacustomers.it. 7200 SOA ns03.semacustomers.it. angelo\.sena.eng.it. 2021111002 43200 7200 1209600 7200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0