Microsoft Announces the End of Client Access Rules in Exchange Online

Customers who are using Client Access Rules, also known as CARs, in Exchange Online are being warned by Microsoft that the support for this feature is being removed.

The whole thing will happen in September 2023, the software giant says, as the company no longer sees any reason in supporting CARs given the introduction of more advanced capabilities, such as Continuous Access Evaluation.

Microsoft says the client access rules will be disabled for non-using tenants in October this year, while in the remaining time until September 2023, the company says it will work with customers to help migrate the remaining tenants to CAR.

“Client Access Rules (CARs) help to control access to the Exchange Online organization. Now with new features, like Continuous Access Evaluation (CAE) that allows Azure Active Directory applications to subscribe to critical events, that can then be evaluated and enforced in near real time; you can have better control while also adding resiliency… (read more)
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Juniya Sankara

I love everything to do with Microsoft Windows, and the new Windows 11 is great so far. I love to spend my time researching on how viruses and bacteria work in my personal lab. I also enjoy history and comics.