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Understanding Microsoft’s Hybrid Agent and Root Certificate Changes

What Are Cloud Products and Their Related Documentation?
The cloud has revolutionized the way computing services are used and delivered. Cloud products are software and services that are delivered over the internet and accessed from anywhere with an internet connection. Cloud products are typically divided into Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

As cloud products become more popular and widely adopted, the need for related documentation increases. This documentation typically includes detailed instructions on how to use and configure the product, as well as any warnings or caveats associated with its use. Additionally, it can provide troubleshooting advice and reference materials.

Exchange Online and Hybrid Agent and Root Certificate Changes
Exchange Online is Microsoft’s cloud-based email and collaboration suite. It allows organizations to leverage the power of the cloud to provide their users with a reliable and secure email solution.

Recently, Microsoft published the Exchange Team Blog article, “Hybrid Agent and Root Certificate Changes,” which outlines changes to the Hybrid Agent and Root Certificate. These changes, which will go into effect on July 1, 2021, are intended to provide additional security and reliability to the Exchange Online environment.

What Are the Changes?
The changes to the Hybrid Agent and Root Certificate include:

* Introducing a new root certificate that will be used for both the Hybrid Agent and for encrypting and signing communications.
* Updating the public key of the existing root certificate.
* Adding a new certificate revocation list (CRL) endpoint.
* Adding new intermediate certificates.

What Is the Impact of These Changes?
The changes to the Hybrid Agent and Root Certificate will have an impact on several aspects of Exchange Online. For example, the new root certificate will be used to secure communications between Exchange Online and on-premises servers. Additionally, the new CRL endpoint will be used to ensure that the certificates used by Exchange Online are valid.

What Do I Need to Do?
In order to ensure that the Hybrid Agent and Root Certificate changes are implemented correctly, organizations should:

* Update their on-premises servers with the new root certificate.
* Update the CRL endpoints for the new root certificate.
* Update the public key for the existing root certificate.
* Configure the on-premises servers to use the new intermediate certificates.

Conclusion
The changes to the Hybrid Agent and Root Certificate in Exchange Online are intended to provide additional security and reliability to the environment. Organizations should ensure that they are prepared for these changes by updating their on-premises servers, configuring the new root certificate, and updating the CRL endpoints. By taking these steps, organizations can ensure that they are taking advantage of the new security and reliability features provided by Exchange Online.
References:
Hybrid Agent and Root Certificate Changes

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