3.214.104.42
ec2-3-214-104-42.compute-1.amazonaws.com
3.221.7.89
ec2-3-221-7-89.compute-1.amazonaws.com
3.82.33.90
ec2-3-82-33-90.compute-1.amazonaws.com
34.227.200.172
ec2-34-227-200-172.compute-1.amazonaws.com

excelsior-edu.mail.protection.outlook.com.