Added "in China" to 21Vianet references

Author: chrisda

defender-office-365/quarantine-faq.yml

@@ -34,7 +34,7 @@ summary: |
   This article provides frequently asked questions and answers about quarantined email messages for Microsoft 365 organizations with mailboxes in Exchange Online, or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes.
 
   > [!NOTE]
-  > In Microsoft 365 operated by 21Vianet, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
+  > In Microsoft 365 operated by 21Vianet in China, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
 
   For questions and answers about anti-spam protection, see [Anti-spam protection FAQ](anti-spam-protection-faq.yml).
 

defender-office-365/quarantine-policies.md

@@ -44,7 +44,7 @@ You create and assign quarantine policies in the Microsoft Defender portal or in
 
 ## What do you need to know before you begin?
 
-- In Microsoft 365 operated by 21Vianet, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
+- In Microsoft 365 operated by 21Vianet in China, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
 
 - You open the Microsoft Defender portal at <https://security.microsoft.com>. To go directly to the **Quarantine policies** page, use <https://security.microsoft.com/quarantinePolicies>.
 

defender-office-365/quarantine-shared-mailbox-messages.md

@@ -43,7 +43,7 @@ Now, automapping is no longer required for users to manage quarantined messages
 
 ## Things to keep in mind
 
-- In Microsoft 365 operated by 21Vianet, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
+- In Microsoft 365 operated by 21Vianet in China, quarantine isn't currently available in the Microsoft Defender portal. Quarantine is available only in the classic Exchange admin center (classic EAC).
 
 - _Quarantine policies_ define what users are allowed to do or not do to quarantined messages based on why the message was quarantined for [supported features](quarantine-policies.md#step-2-assign-a-quarantine-policy-to-supported-features). Default quarantine policies enforce the historical capabilities for the security feature that quarantined the message as described in the table [here](quarantine-end-user.md). Admins can create and apply custom quarantine policies that define less restrictive or more restrictive capabilities for users. For more information, see [Create quarantine policies](quarantine-policies.md#step-1-create-quarantine-policies-in-the-microsoft-defender-portal).