Okay. I tried setting up a https check with alerting to my single email and I received an email saying “https for www.grafana.com is OK”. So could you please try and use a single email just to verify if there are any problems with having a lot of comma-separated email addresses.
Are you using the free or paid plan?
But did you know that:
Now with worldPing v1.2.2+ and Grafana v4+, the sky is the limit. Using the 100% Graphite-compatible worldPing hosted data source, you can bring metrics-based alerting into your global performance monitoring.
That’s basically mean that you can use Grafana’s native alerting feature which will give you much more alternatives, i.e. sending alerts to a lot of different notification channels like email, slack, pagerduty to name a few.
The following dashboard will show you examples of how to use Grafana’s native alerting feature for worldping.