A company just migrated its email service to a cloud solution. After the migration, two-thirds of the internal
users were able to connect to their mailboxes, but the connection fails for the other one-third of internal users.
Users working externally are not reporting any issues. The network administrator identifies the following output
collected from an internal host:
c:user> nslookup newmail.company.com
Non-Authoritative answer:
Name: newmail.company.com
IPs: 3.219.13.186, 64.58.225.184, 184.168.131.243
Which of the following verification tasks should the network administrator perform NEXT?


A. Check the firewall ACL to verify all required IP addresses are included.
B. Verify the required router PAT rules are properly configured.
C. Confirm the internal DNS server is replying to requests for the cloud solution.
D. Validate the cloud console to determine whether there are unlicensed requests.