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
A. Check the firewall ACL to verify all required IP addresses are included
B. Verify the required router PAT rules are properly configured