shell:$ nslookup -timeout=2 -retry=1 'cloudmail.mtn.com'
Server:		1.1.1.1
Address:	1.1.1.1#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 = ooc-g2.tm-4.office.com.
ooc-g2.tm-4.office.com	canonical name = outlook.ms-acdc.office.com.
outlook.ms-acdc.office.com	canonical name = MDW-efz.ms-acdc.office.com.
Name:	MDW-efz.ms-acdc.office.com
Address: 52.96.157.114
Name:	MDW-efz.ms-acdc.office.com
Address: 52.96.170.66
Name:	MDW-efz.ms-acdc.office.com
Address: 52.96.79.226
Name:	MDW-efz.ms-acdc.office.com
Address: 52.96.191.194
Name:	MDW-efz.ms-acdc.office.com
Address: 2603:1036:304:873::2
Name:	MDW-efz.ms-acdc.office.com
Address: 2603:1036:304:81c::2
Name:	MDW-efz.ms-acdc.office.com
Address: 2603:1036:304:838::2
Name:	MDW-efz.ms-acdc.office.com
Address: 2603:1036:304:3408::2