mail.sicurezzapostale.it has no NS records.
NS records for this zone are defined at sicurezzapostale.it.
NS records for this zone are defined at sicurezzapostale.it.
Question and response
Question
dig mail.sicurezzapostale.it. NS
Answer
The response has no answer records.
Authority
sicurezzapostale.it. 60 SOA dns1.sicurezzapostale.it. maintainer.namirial.com. 2192 86400 1800 604800 60
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0