Question

我有以下代码：

Properties props = new Properties();
    props.put("mail.pop3.host", "pop.1und1.de");
    props.put("mail.pop3.user", "xxxx");
    // Start SSL connection
    props.put("mail.pop3.socketFactory", 995);
    props.put("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.pop3.port", 995);

    Session session = Session.getDefaultInstance(props, new Authenticator() {
        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication("xxxx", "xxxx");
        }
    });

    try {

        Store store = session.getStore("pop3");
        store.connect("pop.1und1.de", "xxxx", "xxxx");

        Folder folderInbox = store.getFolder("INBOX");

[...]

我想连接到＆＃39; 1und1＆＃39;服务器。但是它已经不能用了。我无法连接到我的电子邮件服务器。

这是错误：

javax.mail.AuthenticationFailedException：套接字上的EOF com.sun.mail.pop3.POP3Store.protocolConnect（POP3Store.java:209）at at javax.mail.Service.connect（Service.java:386）at javax.mail.Service.connect（Service.java:245）at de.beans.webservice.KoordinationsBean.downloadEmailAttachments（KoordinationsBean.java:990）在 de.beans.webservice.KoordinationsBean.emailsLesen（KoordinationsBean.java:278）在 de.beans.webservice.KoordinationsBean.starteTransition（KoordinationsBean.java:243） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:498）at com.sun.el.parser.AstValue.invoke（AstValue.java:289）at at com.sun.el.MethodExpressionImpl.invoke（MethodExpressionImpl.java:304）在 org.jboss.weld.util.el.ForwardingMethodExpression.invoke（ForwardingMethodExpression.java:40）在 org.jboss.weld.el.WeldMethodExpression.invoke（WeldMethodExpression.java:50）在 org.jboss.weld.util.el.ForwardingMethodExpression.invoke（ForwardingMethodExpression.java:40）在 org.jboss.weld.el.WeldMethodExpression.invoke（WeldMethodExpression.java:50）在 javax.faces.event.MethodExpressionActionListener.processAction（MethodExpressionActionListener.java:149）在javax.faces.event.ActionEvent.processListener（ActionEvent.java:88）在 javax.faces.component.UIComponentBase.broadcast（UIComponentBase.java:814）在javax.faces.component.UICommand.broadcast（UICommand.java:300）at javax.faces.component.UIViewRoot.broadcastEvents（UIViewRoot.java:790）在 javax.faces.component.UIViewRoot.processApplication（UIViewRoot.java:1282）在 com.sun.faces.lifecycle.InvokeApplicationPhase.execute（InvokeApplicationPhase.java:81）在com.sun.faces.lifecycle.Phase.doPhase（Phase.java:101）at com.sun.faces.lifecycle.LifecycleImpl.execute（LifecycleImpl.java:198）在javax.faces.webapp.FacesServlet.service（FacesServlet.java:658）at org.apache.catalina.core.StandardWrapper.service（StandardWrapper.java:1682）在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:344）在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:214）在 org.glassfish.tyrus.servlet.TyrusServletFilter.doFilter（TyrusServletFilter.java:305）在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:256）在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:214）在 org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:316）在 org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:160）在 org.apache.catalina.core.StandardPipeline.doInvoke（StandardPipeline.java:734）在 org.apache.catalina.core.StandardPipeline.invoke（StandardPipeline.java:673）在com.sun.enterprise.web.WebPipeline.invoke（WebPipeline.java:99）at org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:174）在 org.apache.catalina.connector.CoyoteAdapter.doService（CoyoteAdapter.java:416）在 org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:283）在 com.sun.enterprise.v3.services.impl.ContainerMapper $ HttpHandlerCallable.call（ContainerMapper.java:459）在 com.sun.enterprise.v3.services.impl.ContainerMapper.service（ContainerMapper.java:167）在 org.glassfish.grizzly.http.server.HttpHandler.runService（HttpHandler.java:206）在 org.glassfish.grizzly.http.server.HttpHandler.doHandle（HttpHandler.java:180）在 org.glassfish.grizzly.http.server.HttpServerFilter.handleRead（HttpServerFilter.java:235）在 org.glassfish.grizzly.filterchain.ExecutorResolver $ 9.execute（ExecutorResolver.java:119）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter（DefaultFilterChain.java:284）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart（DefaultFilterChain.java:201）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.execute（DefaultFilterChain.java:133）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.process（DefaultFilterChain.java:112）在 org.glassfish.grizzly.ProcessorExecutor.execute（ProcessorExecutor.java:77）在 org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent（TCPNIOTransport.java:526）在 org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent（AbstractIOStrategy.java:112）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0（WorkerThreadIOStrategy.java:117）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access $ 100（WorkerThreadIOStrategy.java:56）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy $ WorkerThreadRunnable.run（WorkerThreadIOStrategy.java:137）在 org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.doWork（AbstractThreadPool.java:591）在 org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.run（AbstractThreadPool.java:571）在java.lang.Thread.run（Thread.java:745）

Javax Mail - 无法连接到电子邮件服务器

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