You are trying to connect your on-premise AD Microsoft Exchange Email server with the Simple AD service provided by AWS but are not able to do so? Which of the following could be a reason for this.

Answer options:

A.The firewall is blocking the necessary ports.
B.TheNACL’s are blocking the necessary ports.
C.Simple AD does not work with many Microsoft products
D.You need to implement SSL before using Simple AD with Exchange Server.

Answer – C
The AWS documentation mentions the following on the Simple AD service
Simple AD provides a subset of the features offered by Microsoft AD, including the ability to manage user accounts and group memberships, create and apply group policies, securely connect to Amazon EC2 instances, and provide Kerberos-based single sign-on (SSO). However, note that Simple AD does not support features such as trust relationships with other domains, Active Directory Administrative Center, PowerShell support, Active Directory recycle bin, group managed service accounts, and schema extensions for POSIX and Microsoft applications
For more information on the Simple AD service please refer to the below URL:
http://docs.aws.amazon.com/directoryservice/latest/admin-guide/directory_simple_ad.html