Question and response
Question
dig outlook.office.com. NS
Answer
outlook.office.com. 1 CNAME substrate.office.com.
substrate.office.com. 1 CNAME outlook.office365.com.
outlook.office365.com. 1 CNAME ooc-g2.tm-4.office.com.
ooc-g2.tm-4.office.com. 1 CNAME atm.outlook.mira.tm.svc.cloud.microsoft.
Authority
cloud.microsoft. 45 SOA ns1-33.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 120 2419200 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0