Jenkins: Don't send emails for false positives

http://massol.myxwiki.org/xwiki/bin/view/Blog/JenkinsDontSendEmailForFalsePositives

Having a CI tool set up is great. However if your CI starts sending a lot of build failure emails and a portion of these are false positives (i.e. for example CI infrastructure issues or flickering tests) then what will happen is that the developers are going to trust less and less your CI and builds will stay failing more and more till your release day when you're going to spend several days trying to stabilize your build and your tests before you can release. Thus delaying the release and starting on a downward slope... It's thus very important that your CI only sends real build failures to the developers.

See also Flaky test