Please follow below steps to copy the automatic/conditional formatting from one folder to other folders in Outlook.

1. In the Mail view, open the mail folder containing the conditional formatting in the Navigation Pane.

2. Click View > Change View > Apply Current View to Other Mail Folders. See screenshot:

3. In the opening Apply View dialog box, please check the destination folders you will copy the conditional formatting to, and click the OK button. See screenshot:

Note: It’s optional to check the Apply view to subfolders option as you need.

So far the conditional formatting has been copied from the currently selected folder, and pasted into folders you checked in above Step 3.

Note: This method will not only copy the conditional formatting, but also other view settings, such as columns, sorting criteria, filter criteria, etc.

Change date and time format of mail Received field in Outlook