shell:$ nslookup -timeout=2 -retry=1 'alt4.aspmx.l.google.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	alt4.aspmx.l.google.com
Address: 172.253.116.27
Name:	alt4.aspmx.l.google.com
Address: 2a00:1450:400b:c02::1a