mx.msoft-italia.com has no NS records.
NS records for this zone are defined at msoft-italia.com.
NS records for this zone are defined at msoft-italia.com.
Question and response
Question
dig mx.msoft-italia.com. NS
Answer
The response has no answer records.
Authority
msoft-italia.com. 3600 SOA ns.msoft-italia.com. root.ns.msoft-italia.com. 2059684405 10800 1800 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0