shell-com.q-v1.mx.microsoft has no CNAME records.
Question and response
Question
dig shell-com.q-v1.mx.microsoft. NS
Answer
The response has no answer records.
Authority
q-v1.mx.microsoft. 108 SOA ns1-82.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0