title: How to tell Application Insights to ignore 404 responses
body: <p>ApplicationInsights has recently started mailing me a Weekly Telemetry Report.  My problem is that it tells me that I have a bunch of Failed Requests, Failed Dependencies, and Exceptions, but when I click through to analyze the failures I see that they are all associated with attempts by bots or Bad Guys to access nonexistent pages in my website.</p>
  
  <p>Is there an easy way to tell ApplicationInsights that I am not interested in metrics associated with attempts to access nonexistent pages?  Yes, I appreciate the Weekly Telemetry Report, but I don't want to have to take the time to investigate a category of frequently reported problems that I consider "false positives".</p>