Hi, Klaus.

To get the brackets on the hop (ie: set up the alert to monitor a specific target), right-click on the hop and select "Watch this host (Alerts)...". This will bring up a dialog where you can select which alerts you want to watch this particular hop (and you'll get brackets!).

I'm a bit confused on your additional question.

If you set up an alert for "when alert conditions start", you should get a single email when alert conditions start. If you also add a "Each time conditions are met", then you might get two (or more with a wait of 0).

After you get the alert working, please let us know how you have youralert configured and what behavior you're seeing and we'll help you get it set up the way you want.

Again, the Tutorial and Getting started guide offer a lot of information - and step-by-step instructions on how to get the alerts working.

- Pete