I want to receive audio notifications for email that lands in a particular subfolder of the Inbox. The filtering is done server side so I can't use a rule to generate a audio notification.

I tried accomplishing this with a smart folder/mailbox  but I'm not getting an audio notification for new email arriving in the subfolder.

Is it possible to get an audio notification on individual subfolders?

I can get audio notifications when the email lands directly in the inbox.