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Understanding the Hybrid Agent and Root Certificate Changes in Exchange

How to Prepare for Exchange Online Hybrid Agent and Root Certificate Changes
What are Hybrid Agent and Root Certificate Changes?
Hybrid Agent and Root Certificate Changes are a set of changes to the Exchange Online Hybrid Agent and Root Certificate that are being implemented in order to improve the security of the service. These changes affect customers who are using the Exchange Online Hybrid Agent to connect their on-premises Exchange environment to Exchange Online.What is the Exchange Online Hybrid Agent?
The Exchange Online Hybrid Agent (EOHA) is a component of the Exchange Online service that acts as a gateway for the Exchange Online environment. It is responsible for securely connecting the on-premises Exchange environment to the Exchange Online environment.What are the Changes?
The changes involve the following: * Updating the Root Certificates used by the Exchange Online Hybrid Agent.
* Updating the Hybrid Agent Configuration.
* Enabling the TLS 1.2 protocol for secure communication.

What are the Benefits of the Changes?
The changes to the Hybrid Agent and Root Certificates will improve the security of the Exchange Online service by providing better encryption and better authentication. This will help protect the data in the Exchange Online environment from unauthorized access.How Can I Prepare for the Changes?
To prepare for the changes, customers should do the following: * Verify that their environment is running the latest version of the Hybrid Agent.
* Verify that their environment is running the latest version of the Root Certificate.
* Verify that their environment is configured to use TLS 1.2 for secure communication.
* Verify that their environment is configured to use the latest version of the Hybrid Agent configuration.

Conclusion
The changes to the Hybrid Agent and Root Certificate will improve the security of the Exchange Online service. Customers should take the necessary steps to ensure that their environment is prepared for the changes. By doing so, they can help ensure that their data is secure and protected.
References:
Hybrid Agent and Root Certificate Changes

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