shell:$ nslookup -timeout=2 -retry=1 'webhook-dogfood-poolb.teams.microsoft.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
webhook-dogfood-poolb.teams.microsoft.com	canonical name = teams-webhook-us-dogfood-poolb.trafficmanager.net.
teams-webhook-us-dogfood-poolb.trafficmanager.net	canonical name = tmsg-int-azsc-01-whap-dns.westus.cloudapp.azure.com.
Name:	tmsg-int-azsc-01-whap-dns.westus.cloudapp.azure.com
Address: 40.118.207.201