Merge pull request #2477 from msbemba/patch-94

Update give-mailbox-permissions-to-another-user.md

microsoft-365/admin/add-users/give-mailbox-permissions-to-another-user.md

@@ -50,7 +50,10 @@ Once you've set up the permissions, it can take up to 60 minutes for the changes
 
  **How to use it once permissions are set up:**
 
-There are a few different ways you can access a mailbox once you've been given access. For help on this, refer to this article: [Access another person's mailbox](https://support.microsoft.com/office/A909AD30-E413-40B5-A487-0EA70B763081)
+There are a few different ways you can access a mailbox once you've been given access. For help on this, refer to this article: [Access another person's mailbox](https://support.microsoft.com/office/A909AD30-E413-40B5-A487-0EA70B763081).
+
+> [!NOTE]
+> The permissions can be set up only within the current organization tenant. It is not possible to set up mailbox permissions with out of tenant users.
   
 ## Send email from another user's mailbox