New email notification disappears

[dcbaynes]

I have created several folders in my inbox, and a rule that directs new emails into these folders when there is a certain word in the subject. When an email arrives in my inbox, the new email notification appears in the system tray. However when a new email appears and is directed by a rule into one of the folders in my inbox, the new email notification does not appear. Is there a way to show the new email notification in the system tray when this happens?