Badsigs notification

Hi,
Some time ago I worked on a tool to detect some problems with broken generic signatures in scala's library. The tool is running on our jenkins installation:
https://scala-webapps.epfl.ch/jenkins/view/Misc/job/scala-signatures/
Since all builds were successful for a while I think it's a good time to enable e-mail notifications when it fails. Not sure how to configure this stuff or if it's a good idea at all. Thoughts/instructions?

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Grzegorz Kossakowski