It would be a great feature if it was possible to prevent Jenkins from sending e-mails to individuals who broke the build when the previous failing build already has been claimed.
One could argue that all effort by everybody should be put into fixing a build when it breaks, but it is not like that here. We have a lot of jobs and if one fails, the show goes on for the other jobs. Only the people listed as recipients in the config and the person who claimed the build needs to get notified. Of course until the build passes again.
Very useful plugin by the way!