I already managed to disable email notification for devices and sensors were it's not necessary for me to get a notification. For example user workstations. It may help to monitor their bandwidth or cpu usage, but there is no need to be informed if they've been shutdown.
So is there a way to configure PRTG to not count those sensors as alerts if they are in error state or simply not accessable? A users workstation can be offline after normal office time - it doesn't make sense from an administrative point of view to count that as an alert :-)
Thanks in advance.