I've configured our SCM to trigger builds automatically when a commit occurs. Jenkins has been set up to send a notification for broken builds to the person who did the last commit. I didn't realize Jenkins automatically creates a user account for the committer with SCM triggered builds. In my case the automatically and manually created user accounts were separate and the former didn't have an email address set. So, after setting the email address correctly notifications work. We'll have to switch over to using the user names that are picked with SCM triggered builds. thanks everyone.
marko
