shell:$ nslookup -timeout=2 -retry=1 'sudani-sd.mail.protection.outlook.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	sudani-sd.mail.protection.outlook.com
Address: 52.101.147.1
Name:	sudani-sd.mail.protection.outlook.com
Address: 52.101.148.1
Name:	sudani-sd.mail.protection.outlook.com
Address: 52.101.148.3
Name:	sudani-sd.mail.protection.outlook.com
Address: 52.101.148.13
Name:	sudani-sd.mail.protection.outlook.com
Address: 2a01:111:f403:cc30::3
Name:	sudani-sd.mail.protection.outlook.com
Address: 2a01:111:f403:cc30::
Name:	sudani-sd.mail.protection.outlook.com
Address: 2a01:111:f403:cc30::1
Name:	sudani-sd.mail.protection.outlook.com
Address: 2a01:111:f403:cc2f::