Notification alerts / Benachrichtigungen

I’m new with em client.
My question is about notification.
Always when I start emClient, than a lot of OLD events (2011,2013 etc.) appear as the notification in the right corner.
Is this a feature of emClient or an error?
Is it possible to handle it, so no old event does appear anymore as a notification?

Thanks in advance and for your support.

You can “Disable” Windows (System) notifications appearing in the bottom right corner by “unchecking” the box “use System Notifications” as per below example screenshot.

If you don’t want any notifications even when EMC is open, place a tick in “Sound” and “Popup” or just “Popup” if you want to hear the sound without anything else.

If you have a Mac version of EMC should be similar.