Question

我正在尝试通过java代码发送电子邮件..但异常提升..我不知道我哪里出错...通过我的公司网络发送..

public class SendingMail{
  public static void main(String[] args) {
            final String username = "xyz@company.com";
    final String password = "********";
    Properties props = new Properties();
    props.put("mail.smtp.user", "xyz@company.com");
        props.put("mail.smtp.password", "********");
        props.put("mail.smtp.protocol", "smtp");  
        props.put("mail.smtp.host", "10.0.1.9");
        props.put("mail.smtp.port", "80");
        props.put("mail.smtp.starttls.enable","false");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.socketFactory.port", "80");
        props.put("mail.smtp.socketFactory.class", "");
        props.put("mail.smtp.socketFactory.fallback", "false");
    Session session = Session.getInstance(props,
      new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
      });
    try {
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("dpaleti@avineonindia.com"));
        message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse("abc@company.com"));
        message.setSubject("Testing Subject");
        message.setText("Dear Mail Crawler,"
            + "\n\n No spam to my email, please!");
                        Transport.send(message);
                           System.out.println("Done");
                   } catch  (MessagingException mex) {
         mex.printStackTrace();
    }
         }
           }

异常堆栈跟踪是：

     javax.mail.MessagingException: Could not connect to SMTP host: 10.0.1.9, port: 80,      response: -1
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1270)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
    at javax.mail.Service.connect(Service.java:275)
    at javax.mail.Service.connect(Service.java:156)
    at javax.mail.Service.connect(Service.java:105)
    at javax.mail.Transport.send0(Transport.java:168)
    at javax.mail.Transport.send(Transport.java:98)
    at com.ex.mails.SendingMail.main(SendingMail.java:48)

我在telnet中检查了它是否连接到我的服务器..它连接以及我可以ping到10.0.1.9

将端口号更改为25.现在我收到以下错误

javax.mail.MessagingException: Could not connect to SMTP host: 10.0.1.9, port: 25;
 nested exception is:
java.net.SocketException: Network is unreachable: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1282)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
at javax.mail.Service.connect(Service.java:275)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
at com.ex.mails.SendingMail.main(SendingMail.java:48)
Caused by: java.net.SocketException: Network is unreachable: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1250)
... 7 more

Answer 1

这里有几点可能对你有所帮助

检查SMTP服务器是否正在运行
如果SMTP服务器正在运行，请检查SMTP服务器侦听哪个端口（可能是25,587,465）。如果启用了ssl，则587用于StartTLS props.put("mail.smtp.starttls.enable", "true");或使用465

以下是一个可以帮助您http://www.mkyong.com/java/javamail-api-sending-email-via-gmail-smtp-example/

无法连接到SMTP主机：10.0.1.9，端口：80，响应：-1通过java发送电子邮件时

1 个答案: