Hi Zhuo Zhuo18 Wang
Thank you for reaching out via the Microsoft Q&A forum.
We would like to confirm that the behavior you are experiencing is consistent with Outlook’s default settings. However, you may follow the steps below to adjust your rule configuration and enable desktop notifications for emails that are automatically moved to subfolders:
- In the main Outlook interface, click on the File tab.
- Select Manage Rules & Alerts.
- In the window that appears, locate and select the rule that is currently affecting your notifications.
- Click Change Rule, then choose Edit Rule Settings....

Clicking Next until you reach the screen titled "What do you want to do with the message?"
Under Step 1: Select action(s), check the box labeled "display a Desktop Alert" and click Finish to save your changes.

Once these steps are completed, future emails that match the rule will not only be moved to the designated subfolder but will also trigger a desktop alert.
We hope this will help you resolve the issue.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
