smtp.servereasy.it has no NS records.
NS records for this zone are defined at servereasy.it.
NS records for this zone are defined at servereasy.it.
Question and response
Question
dig smtp.servereasy.it. NS
Answer
The response has no answer records.
Authority
servereasy.it. 1800 SOA carioca.ns.cloudflare.com. dns.cloudflare.com. 2399269937 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0