mail-nam-cu10-cy.westcentralus.cloudapp.azure.com has no AAAA records.
Question and response
Question
dig mail-nam-cu10-cy.westcentralus.cloudapp.azure.com. AAAA
Answer
The response has no answer records.
Authority
westcentralus.cloudapp.azure.com. 60 SOA ns1-03.azure-dns.com. msnhst.microsoft.com. 1 900 300 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0