测试邮件正常工作，但是当我配置后生成电子邮件通知不起作用时

Question

当我在詹金斯（Jenkins）中配置电子邮件通知时，测试邮件正在工作，但后期构建“电子邮件通知”无法正常工作。

Sending e-mails to: samplemail@gmail.com
ERROR: [EOF]
com.sun.mail.smtp.SMTPSendFailedException: [EOF]
at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2057)
at com.sun.mail.smtp.SMTPTransport.finishData(SMTPTransport.java:1862)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1100)
at javax.mail.Transport.send0(Transport.java:195)
at javax.mail.Transport.send(Transport.java:124)
at hudson.tasks.MailSender.run(MailSender.java:131)
at hudson.tasks.Mailer.perform(Mailer.java:171)
at
hudson.tasks.BuildStepCompatibilityLayer.perform
(BuildStepCompatibilityLayer.java:81)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at 
hudson.model.AbstractBuild$AbstractBuildExecution.perform
(AbstractBuild.java:744)
at 
hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps
(AbstractBuild.java:690)
at hudson.model.Build$BuildExecution.post2(Build.java:186)
at 
hudson.model.AbstractBuild$AbstractBuildExecution.post
(AbstractBuild.java:635)
at hudson.model.Run.execute(Run.java:1823)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429)
Finished: FAILURE