shell:$ nslookup -timeout=2 -retry=1 'emails.teams.microsoft.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
emails.teams.microsoft.com	canonical name = teams-afdsni.trafficmanager.net.
teams-afdsni.trafficmanager.net	canonical name = teams-afdsni-trafficmanager-net.s-0005.dual-s-msedge.net.
teams-afdsni-trafficmanager-net.s-0005.dual-s-msedge.net	canonical name = s-0005.dual-s-msedge.net.
Name:	s-0005.dual-s-msedge.net
Address: 52.123.128.14
Name:	s-0005.dual-s-msedge.net
Address: 52.123.129.14
Name:	s-0005.dual-s-msedge.net
Address: 2603:1063:27:1::14
Name:	s-0005.dual-s-msedge.net
Address: 2603:1063:27:2::14