shell:$ nslookup -timeout=2 -retry=1 'mx1.forwardemail.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	mx1.forwardemail.net
Address: 138.197.213.185
Name:	mx1.forwardemail.net
Address: 121.127.44.56
Name:	mx1.forwardemail.net
Address: 2604:a880:2:d0::306:1
Name:	mx1.forwardemail.net
Address: 2a02:6ea0:d71e::2