mx.acconciatori.biz has no NS records.
NS records for this zone are defined at acconciatori.biz.
NS records for this zone are defined at acconciatori.biz.
Question and response
Question
dig mx.acconciatori.biz. NS
Answer
The response has no answer records.
Authority
acconciatori.biz. 3600 SOA dns.acconciatori.biz. hostmaster.acconciatori.biz. 1591381027 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0