with Hudson/Jenkins v1.377

ERROR: Publisher hudson.tasks.Mailer aborted due to exception
java.lang.NullPointerException
at hudson.tasks.MailSender.createFailureMail(MailSender.java:271)
at hudson.tasks.MailSender.getMail(MailSender.java:146)
at hudson.tasks.MailSender.execute(MailSender.java:94)
at hudson.tasks.Mailer.perform(Mailer.java:111)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:601)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:580)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:558)
at hudson.model.Build$RunnerImpl.post2(Build.java:157)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:528)
at hudson.model.Run.run(Run.java:1296)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:137)