I am talking about the new notification center:
Sometimes I receive a toast notification for an email, I have read and answered hours ago. When opening the notification center, I see many emails, I already have seen, but didn't got a toast notification.
I think the problem has started about a half year ago. If I recall correct, Cortana said something along the lines "While you were busy, I kept some notifications away from you."
How can I configure windows, to show me a new notification (for example Mail) at the moment I receive it? A year ago, this was the standard setting.
I don't find anything usefull in System -> Notifications and Actions. Everything is enabled.