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Update: Deprecation of Client Access Rules in Exchange Online
Introduction
Microsoft recently announced the deprecation of Client Access Rules (CARs) in Exchange Online. In this blog post, I will provide an overview of what this means for Exchange Online customers. Additionally, I will provide answers to some of the most frequently asked questions about the deprecation of CARs.
What are Client Access Rules?
Client Access Rules (CARs) are a feature in Exchange Online that allows administrators to create rules that apply to specific users and client protocols. These rules allow administrators to control the type of traffic that is allowed in and out of the Exchange Online environment.
Why are Client Access Rules Being Deprecated?
Microsoft has decided to deprecate CARs in Exchange Online in order to reduce complexity and improve the overall security of the Exchange Online environment. By deprecating CARs, Microsoft is simplifying the Exchange Online environment while providing a more secure platform.
What are the Alternatives to Client Access Rules?
Microsoft has recommended that customers use the following alternatives to CARs: Exchange Online Protection (EOP), Azure Active Directory Conditional Access, and Microsoft Cloud App Security. These alternatives provide customers with more control over their Exchange Online environment and provide additional security features.
Frequently Asked Questions
Q1: What is the timeline for the deprecation of CARs?
Microsoft has announced that CARs will be deprecated in Exchange Online on July 31, 2021.
Q2: What will happen with existing CARs after the deprecation date?
Existing CARs will be converted to EOP rules, and customers will be able to manage the new rules in the EOP portal.
Q3: How will the deprecation of CARs affect customers?
The deprecation of CARs will allow customers to simplify their Exchange Online environment by reducing complexity and improving security. Additionally, customers will be able to take advantage of the additional security features offered by EOP, Azure Active Directory Conditional Access, and Microsoft Cloud App Security.
Q4: What is the best way to prepare for the deprecation of CARs?
It is recommended that customers begin preparing for the deprecation of CARs as soon as possible. Customers should evaluate their current environment and begin transitioning to the recommended alternatives (EOP, Azure Active Directory Conditional Access, and Microsoft Cloud App Security). Additionally, customers should review their existing CARs and begin migrating them to the new tools.
Q5: Is there any support available for customers transitioning to the new tools?
Yes, Microsoft provides a variety of resources to help customers transition to the new tools, including documentation, tutorials, and support forums. Additionally, customers can contact Microsoft Support for assistance with any questions or issues they may have.
Conclusion
Microsoft’s decision to deprecate CARs in Exchange Online is an important step in simplifying the Exchange Online environment and improving security. While this change will require customers to transition to new tools, Microsoft provides a variety of resources to help customers make the transition. By taking the time to review their existing environment and prepare for the deprecation of CARs, customers can ensure a smooth transition to the new tools.
