Try the below solution :
From AP:Administration, create new notification from notification tab.
While creating this, provide all manadatory values (e.g. Notification name,Process name) and in Notify On drop down select Reject by later level. In Details tab give notification method as Email.
Also in server setting check, notification for reject by later level is enabled.
Reply to this post if it works fine.
Hope this will help you.
Thanks. I will try this out.
Sent from my iPad
Is this worked?