Stop sending multiple emails
This is a bug report.
When the app insights goes over quota we get anywhere from 5 to 19 duplicate emails sent.
If this isn't the place for bug reports, my suggestion is add a place for bug reports. :)
Piyali Jana commented
We took care of this issue about two weeks ago or so with a fix from a partner team that went live on July 14th. Are you still seeing multiple emails when approaching quota (you should have two, one for 80% and another when you hit quota).