Avoid deleting the messages that are not 'recognized' by WHD (so it didn't create a ticket for them) would be very useful.
Probably the "deleting feature" is due to the necessity to keep the inbox clear and not having to enumerate many old messages each time the inbox is polled.
But the same purpose may be achieved through moving not recognized emails to another folder instead of deleting them.
Since it's probably not possible with the standard options of the product, is there a workaround to mimic this behavior?
thanks in advance