Update enterprise-portal-about.mdx

Add note about handling Safe Link users

Author: AmberAlston

docs/vendor/enterprise-portal-about.mdx

@@ -33,10 +33,10 @@ For information about using the Enterprise Portal, see [Access and Use the Enter
 
 * The Enterprise Portal is Beta. The features and functionality of the Enterprise Portal are subject to change.
 
-* Air gap instance records do not appear in the Enterprise Portal until the end customer creates an air gap instance record by either uploading a support bundle for that instance or manually entering instance information. For more information, see [View Active and Inactive Instances](/vendor/enterprise-portal-use#view-active-and-inactive-instances) in _Access and Use the Enterprise Portal_.
-
 * Installation and upgrade instructions are available only for Embedded Cluster and Helm installations. The Enterprise Portal does not provide instructions for installing and upgrading with KOTS in existing clusters.
 
+* Air gap instance records do not appear in the Enterprise Portal until the end customer creates an air gap instance record by either uploading a support bundle for that instance or manually entering instance information. For more information, see [View Active and Inactive Instances](/vendor/enterprise-portal-use#view-active-and-inactive-instances) in _Access and Use the Enterprise Portal_.
+
 ## Comparison to the Download Portal
 
 The Enterprise Portal is the next generation version of the Replicated Download Portal. Compared to the Download Portal, the Enterprise Portal not only provides access to installation assets and instructions, but also allows users to track available updates, manage their team and service accounts, view the status of their instances, view license details, and more. These features are designed to make it easier for your customers to manage their instances of your application from a centralized location outside of the installation environment.
@@ -51,7 +51,9 @@ You can configure the Enterprise Portal to use a custom domain, add links and co
 
 For more information about customizing the Enterprise Portal, see [Customize the Enterprise Portal](enterprise-portal-configure).
 
-For information about how to set a custom domain for the Enterprise Portal, see [Use Custom Domains](/vendor/custom-domains-using).
+For information about how to set a custom domain for the Enterprise Portal, see [Use Custom Domains](/vendor/custom-domains-using). 
+
+For any enterprise customers using link transformers such as Microsoft Defender Safe Links, it is recommended that you ask to have your custom Enterprise Portal domain added to their list of trusted domains to prevent issues with rewrapping breaking legitimate URLs in Enterprise generated emails.
 
 You can enable and disable access to the Enterprise Portal for all customers, or on a per-customer basis. For more information about how to enable access, see [Manage Customer Access](/vendor/enterprise-portal-invite#manage-ep-access).