shell:$ nslookup -timeout=2 -retry=1 'm.gmail.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
m.gmail.com	canonical name = mail.google.com.
Name:	mail.google.com
Address: 172.217.5.5
Name:	mail.google.com
Address: 2607:f8b0:4009:805::2005