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

Non-authoritative answer:
cloudmail.mtn.com	canonical name = mail.office365.com.
mail.office365.com	canonical name = outlook.office365.com.
outlook.office365.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: 40.99.226.146
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.226.242
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.227.34
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.227.98
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 40.99.227.114
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.88.210
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.215.34
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 52.96.230.226
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:83f::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:871::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:2859::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:340a::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:801::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:803::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:807::2
Name:	atm.outlook.mira.tm.svc.cloud.microsoft
Address: 2603:1036:304:83d::2