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Gaining Insight into Microsoft Exchange’s Throttling and Blocking of Email from Persistently Vulnerable Sources

Cloud Architect’s Guide to Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online
Introduction
As a Cloud Architect, you may often find yourself in a situation where you need to secure both on-premises and cloud-based Exchange servers. To ensure the safety of your users and data, it is important that you take proper measures to prevent malicious actors from sending spam or malware to your users.

To help you secure your Exchange environment, Microsoft has recently released a new feature for Exchange Online that allows you to throttle and block email from any persistently vulnerable Exchange server to Exchange Online. This feature is designed to protect your users from malicious actors who are trying to exploit vulnerable Exchange servers. In this article, we will discuss what this feature is, how it works, and how it can help protect your Exchange environment.

What is Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online?
Throttling and blocking email from persistently vulnerable Exchange servers to Exchange Online is a new feature in Exchange Online that allows you to throttle or block email sent from any persistently vulnerable Exchange server to Exchange Online. The feature works by identifying any Exchange servers that are vulnerable and then automatically blocking or throttling email sent from those servers to Exchange Online.

How Does Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online Work?
The throttling and blocking email from persistently vulnerable Exchange servers to Exchange Online feature works by monitoring for any Exchange servers that are vulnerable to attack. If any Exchange servers are identified as being vulnerable, the feature will automatically block or throttle email sent from those servers to Exchange Online.

The feature will also send notifications to the administrators of the vulnerable Exchange servers, informing them that their Exchange server is vulnerable and that they need to take action to secure it.

Why Use Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online?
Throttling and blocking email from persistently vulnerable Exchange servers to Exchange Online is an important security measure that can help protect your Exchange environment from malicious actors. By blocking or throttling email from any persistently vulnerable Exchange servers, you can reduce the risk of your users being targeted by attackers who are trying to exploit vulnerable Exchange servers.

How to Use Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online
To use throttling and blocking email from persistently vulnerable Exchange servers to Exchange Online, you will need to enable the feature in the Exchange Online Admin Center.

Step 1: Log into the Exchange Online Admin Center
First, log into the Exchange Online Admin Center by navigating to https://admin.outlook.com [https://admin.outlook.com].

Step 2: Enable the Feature
Once you have logged into the Exchange Online Admin Center, navigate to the Mailbox > Security & Compliance page. From here, you will need to enable the Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online feature.

Step 3: Configure the Feature
Once the feature has been enabled, you will need to configure it. To do this, navigate to the Mailbox > Security & Compliance > Security & Compliance Center page. From here, you will need to configure the feature by selecting the type of action you want to take when a vulnerable Exchange server is identified. You can choose to either throttle or block email from the server.

Step 4: Monitor for Vulnerable Exchange Servers
Once the feature has been configured, it will begin monitoring for any Exchange servers that are vulnerable to attack. If any Exchange servers are identified as being vulnerable, the feature will automatically block or throttle email sent from those servers to Exchange Online.

Conclusion
Throttling and blocking email from persistently vulnerable Exchange servers to Exchange Online is an important security measure that can help protect your Exchange environment from malicious actors. By blocking or throttling email from any persistently vulnerable Exchange servers, you can reduce the risk of your users being targeted by attackers who are trying to exploit vulnerable Exchange servers.
References:
Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online

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