smtp1.albedo.it has no NS records.
NS records for this zone are defined at albedo.it.
NS records for this zone are defined at albedo.it.
Question and response
Question
dig smtp1.albedo.it. NS
Answer
The response has no answer records.
Authority
albedo.it. 7200 SOA dns.albedo.it. hostmaster.dns.albedo.it. 2026031300 7200 3600 1209600 7200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0