使用可编辑的电子邮件扩展从Jenkins发送电子邮件时的Java异常

Question

詹金斯版本：2.46 这是我的Jenkins配置

这是我收到的完整的堆栈跟踪

ERROR: Could not send email as a part of the post-build publishers.
javax.mail.MessagingException: Can't send command to SMTP host;
  nested exception is:
    java.net.SocketException: Broken pipe (Write failed)
    at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2106)
    at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2093)
    at com.sun.mail.smtp.SMTPTransport.close(SMTPTransport.java:1184)
    at hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:445)
    at hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:345)
    at hudson.plugins.emailext.ExtendedEmailPublisher.perform(ExtendedEmailPublisher.java:253)
    at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
    at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:779)
    at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:720)
    at hudson.model.Build$BuildExecution.cleanUp(Build.java:196)
    at hudson.model.Run.execute(Run.java:1775)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:98)
    at hudson.model.Executor.run(Executor.java:405)
Caused by: java.net.SocketException: Broken pipe (Write failed)
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
    at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
    at com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:114)
    at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2104)
    ... 13 more
Finished: SUCCESS

此外，如何在Jenkins中打开此（以及其他）错误的调试日志？