ns2-prodcndns.glbdns.protection.outlook.com has no NS records.
NS records for this zone are defined at glbdns.protection.outlook.com.
NS records for this zone are defined at glbdns.protection.outlook.com.
Question and response
Question
dig ns2-prodcndns.glbdns.protection.outlook.com. NS
Answer
The response has no answer records.
Authority
glbdns.protection.outlook.com. 300 SOA ns1-36.azure-dns.com. hostmaster.o365filtering.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0