Add note on email resource

Author: farhanhussainleo

articles/communication-services/concepts/email/email-overview.md

@@ -6,7 +6,7 @@ author: bashan-git
 manager: sphenry
 services: azure-communication-services
 ms.author: bashan
-ms.date: 03/31/2023
+ms.date: 06/19/2025
 ms.topic: conceptual
 ms.service: azure-communication-services
 ---
@@ -45,6 +45,9 @@ With Azure Communication Services, you can speed up your market entry with scala
 - **Email analytics**: The **Insights** dashboard provides email analytics. The service emits logs at the request level. Each log has a message ID and recipient information for diagnostic and auditing purposes.
 - **Engagement tracking**: The platform supports bounce, blocked, open, and click tracking.
 
+> [!NOTE]  
+> To use email, you must create a separate Email Communication resource in your Azure subscription. This is not created automatically when you create a Communication Services resource.
+
 ## Next steps
 
 - [Prepare an email communication resource for Azure Communication Services](./prepare-email-communication-resource.md).