Exciting Update: Exchange Online Deprecating Client Access Rules – What You Need to Know!
What is Exchange Online Client Access Rules?
What is Client Access Rules?
Client Access Rules (CAR) is a feature that was introduced in Exchange Online in April 2018. It is designed to provide an additional layer of security and control by allowing tenants to set access rules for clients connecting to Exchange Online.
How Does Client Access Rules Work?
Client Access Rules are implemented as a layer of protection that sits between the client and the Exchange Online server. When a client attempts to connect to Exchange Online, the Client Access Rules will examine the request and determine if the client is allowed to connect. If the client is allowed to connect, the connection will be established. If the client is not allowed to connect, the connection will be blocked.
Why Was the Client Access Rules Deprecated?
Microsoft recently announced the deprecation of the Client Access Rules feature in Exchange Online. The decision was made because the feature was not widely adopted and Microsoft believes that existing security features are more effective at providing the same level of protection.
What Does the Deprecation Mean for Exchange Online Users?
What Will Change?
The deprecation of the Client Access Rules feature means that Exchange Online users will no longer be able to create or manage access rules. All existing rules will be removed from the service.
What Will Not Change?
The deprecation of the Client Access Rules feature does not mean that Exchange Online users will no longer be able to secure their email environment. Exchange Online users can continue to use other security features such as Multi-Factor Authentication, Data Loss Prevention, and Advanced Threat Protection.
Conclusion
The deprecation of the Client Access Rules feature in Exchange Online is a necessary step to ensure that the service remains secure and reliable. However, Exchange Online users should not be concerned as existing security features are more than capable of providing the same level of protection.
References:
Update: Deprecation of Client Access Rules in Exchange Online
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1. Exchange Online Client Access Rules
2. Exchange Online Client Access Rule Deprec