The email notification is set, and the test email fails. Choose SSL port 465, it is a failure. Select TLS port 587, it is successful。
Failed to send out e-mail

javax.net.ssl.SSLException: Received fatal alert: no_renegotiation

at sun.security.ssl.Alerts.getSSLException(Unknown Source)

at sun.security.ssl.Alerts.getSSLException(Unknown Source)

at sun.security.ssl.SSLSocketImpl.recvAlert(Unknown Source)

at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)

at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)

at sun.security.ssl.AppInputStream.read(Unknown Source)

at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:110)

at java.io.BufferedInputStream.fill(Unknown Source)

at java.io.BufferedInputStream.read(Unknown Source)

at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:89)

at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2131)

Caused: javax.mail.MessagingException: Exception reading response;
nested exception is:
javax.net.ssl.SSLException: Received fatal alert: no_renegotiation

at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2153)

at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1912)

at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:638)

at javax.mail.Service.connect(Service.java:317)

at javax.mail.Service.connect(Service.java:176)

at javax.mail.Service.connect(Service.java:125)

at javax.mail.Transport.send0(Transport.java:194)

at javax.mail.Transport.send(Transport.java:124)

at hudson.tasks.Mailer$DescriptorImpl.doSendTestMail(Mailer.java:716)

at java.lang.invoke.MethodHandle.invokeWithArguments(Unknown Source)

at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:396)

at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:408)

at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:77)

at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)

at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:212)

at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:145)

at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:535)

at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)

at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:747)

at org.kohsuke.stapler.Stapler.invoke(Stapler.java:878)

at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:280)

at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)

at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:747)

at org.kohsuke.stapler.Stapler.invoke(Stapler.java:878)

at org.kohsuke.stapler.Stapler.invoke(Stapler.java:676)

at org.kohsuke.stapler.Stapler.service(Stapler.java:238)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1623)

at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)

at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128)

at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151)

at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:157)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:99)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)

at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)

at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67)

at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)

at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:90)

at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)

at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)

at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1700)

at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)

at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1667)

at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)

at org.eclipse.jetty.server.Server.handle(Server.java:505)

at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)

at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)

at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)

at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)

at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)

at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)

at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)

at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)

at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)

at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:698)

at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:804)

at java.lang.Thread.run(Unknown Source)