Hello. We have an issue when attempting to set up smtp setting. We are given an error message when we test the configuration. Our settings are: SMTP Host: smtp.gmail.com Requires Authentication: true Requres SSL: true Trust Server: true SMTP Port: 465 (also tried with 587 and 25 for the same result) Any leads on how to solve this? It works fine on another gluu instance with the same gmail address being used. Less secure app is allowed in gmail settings. ``` 2021-02-25 12:25:12,987 INFO [qtp804611486-18] [org.gluu.oxtrust.action.UpdateOrganizationAction] (UpdateOrganizationAction.java:255) - HostName: smtp.gmail.com Port: 465 RequireSSL: true RequireSSL: true 2021-02-25 12:25:13,081 ERROR [qtp804611486-18] [org.xdi.service.MailService] (MailService.java:141) - Failed to send message javax.mail.MessagingException: Unknown SMTP host: smtp.gmail.com at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1959) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at javax.mail.Service.connect(Service.java:310) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at javax.mail.Service.connect(Service.java:169) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at javax.mail.Service.connect(Service.java:118) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at javax.mail.Transport.send0(Transport.java:188) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at javax.mail.Transport.send(Transport.java:118) ~[javax.mail.glassfish-1.4.1.v201005082020.jar:?] at org.xdi.service.MailService.sendMail(MailService.java:139) [oxcore-service-3.1.6.sp1.jar:?] at org.xdi.service.MailService$Proxy$_$$_WeldClientProxy.sendMail(Unknown Source) [oxcore-service-3.1.6.sp1.jar:?] at org.gluu.oxtrust.action.UpdateOrganizationAction.verifySmtpConfiguration(UpdateOrganizationAction.java:259) [classes/:?] at org.gluu.oxtrust.action.UpdateOrganizationAction$Proxy$_$$_WeldSubclass.verifySmtpConfiguration$$super(Unknown Source) [classes/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181] at org.jboss.weld.interceptor.proxy.TerminalAroundInvokeInvocationContext.proceedInternal(TerminalAroundInvokeInvocationContext.java:51) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.interceptor.proxy.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:78) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.xdi.service.security.SecurityInterceptor.invoke(SecurityInterceptor.java:55) [oxcore-service-3.1.6.sp1.jar:?] at sun.reflect.GeneratedMethodAccessor88.invoke(Unknown Source) ~[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181] at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:73) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68) [weld-core-impl-3.0.5.Final.jar:3.0.5.Final] at org.gluu.oxtrust.action.UpdateOrganizationAction$Proxy$_$$_WeldSubclass.verifySmtpConfiguration(Unknown Source) [classes/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181] at org.apache.el.parser.AstValue.invoke(AstValue.java:247) [org.mortbay.jasper.apache-el-8.5.24.2.jar:8.5.24] at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:267) [org.mortbay.jasper.apache-el-8.5.24.2.jar:8.5.24] at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40) [weld-web-3.0.5.Final.jar:3.0.5.Final] at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) [weld-web-3.0.5.Final.jar:3.0.5.Final] at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) [javax.faces-2.2.16.jar:2.2.16] at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87) [javax.faces-2.2.16.jar:2.2.16] at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) [javax.faces-2.2.16.jar:2.2.16] at javax.faces.component.UICommand.broadcast(UICommand.java:315) [javax.faces-2.2.16.jar:2.2.16] at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790) [javax.faces-2.2.16.jar:2.2.16] at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282) [javax.faces-2.2.16.jar:2.2.16] at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) [javax.faces-2.2.16.jar:2.2.16] at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [javax.faces-2.2.16.jar:2.2.16] at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) [javax.faces-2.2.16.jar:2.2.16] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658) [javax.faces-2.2.16.jar:2.2.16] at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:857) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final] at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566) [jetty-security-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:203) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.ocpsoft.rewrite.servlet.impl.HttpRewriteResultHandler.handleResult(HttpRewriteResultHandler.java:42) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final] at org.ocpsoft.rewrite.servlet.RewriteFilter.rewrite(RewriteFilter.java:297) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final] at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:198) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final] at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [jetty-security-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.Server.handle(Server.java:503) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181] Caused by: java.net.UnknownHostException: smtp.gmail.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) ~[?:1.8.0_181] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_181] at java.net.Socket.connect(Socket.java:589) ~[?:1.8.0_181] at java.net.Socket.connect(Socket.java:538) ~[?:1.8.0_181] at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:321) ~[mail-1.4.7.jar:?] at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:237) ~[mail-1.4.7.jar:?] at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1927) ~[mail-1.4.7.jar:1.4.7] ... 100 more ```