ns2-ms-acdc.office.com has no NS records.
NS records for this zone are defined at office.com.
NS records for this zone are defined at office.com.
Question and response
Question
dig ns2-ms-acdc.office.com. NS
Answer
The response has no answer records.
Authority
office.com. 60 SOA ns1-05.azure-dns.com. msnhst.microsoft.com. 2017971531 300 120 2419200 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0