There are lots of problem reports generated, many of them are for "Error Message" "Notification was not sent due to unmatched condition." Why these reports are generated for such an error message which is not a problem at all, but a way system is configured?
The situation is improved in next major product version BA 6.1. (#PBA-64505), reports are not sent in case of unmatched notification condition. No way to control in BA 6.0.x so far.