shell:$ nslookup -timeout=2 -retry=1 'em.realtime.email'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	em.realtime.email
Address: 98.95.41.145
Name:	em.realtime.email
Address: 52.6.75.97
Name:	em.realtime.email
Address: 100.24.214.233
Name:	em.realtime.email
Address: 18.213.40.15
Name:	em.realtime.email
Address: 98.94.235.98