shell:$ nslookup -timeout=2 -retry=1 'outlook.office.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
outlook.office.com	canonical name = outlook.cloud.microsoft.
outlook.cloud.microsoft	canonical name = acdcatm.outlook.mira.tm.svc.cloud.microsoft.
acdcatm.outlook.mira.tm.svc.cloud.microsoft	canonical name = atm.outlook.mira.tm.svc.cloud.microsoft.
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.164.82
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.230.210
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.215.82
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.215.18
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.88.226
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.164.66
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.226.146
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.227.98
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:1426::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:1801::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:1425::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:1804::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:82e::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:1806::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:182d::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:30a:182c::2