email.microsoftonline.com NS records

NS Authoritative DNS server
1h
ns1.exacttarget.com
ns2.exacttarget.com
ns3.exacttarget.com

Question and response

Question

dig email.microsoftonline.com. NS

Answer

email.microsoftonline.com. 3600 NS ns1.exacttarget.com. email.microsoftonline.com. 3600 NS ns2.exacttarget.com. email.microsoftonline.com. 3600 NS ns3.exacttarget.com.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0