Email was triggered for: Before Build
Sending email for trigger: Before Build
ERROR: Could not send email as a part of the post-build publishers.
java.lang.NullPointerException
at hudson.plugins.emailext.ExtendedEmailPublisher.createMail(ExtendedEmailPublisher.java:515)
at hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:290)
at hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:281)
at hudson.plugins.emailext.ExtendedEmailPublisher.prebuild(ExtendedEmailPublisher.java:223)
at hudson.model.AbstractBuild$AbstractBuildExecution.preBuild(AbstractBuild.java:838)
at hudson.model.AbstractBuild$AbstractBuildExecution.preBuild(AbstractBuild.java:833)
at hudson.model.Build$BuildExecution.doRun(Build.java:142)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:585)
at hudson.model.Run.execute(Run.java:1676)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:231)