java - com.sun.mail.smtp.SMTPSendFailedException : 530-5. 5.1 需要身份验证(Java 邮件)

Question

因此，我正在尝试让 Java Mail 正常工作，但由于我看到的有关该站点的其他答案均无效，我不得不假设在过去一年左右的时间里发生了一些变化。所以我很抱歉，如果这个问题看起来像一个重复的问题，我不知道为什么它不起作用。以下是我的代码:

try{
        Properties property = new Properties();
        property.setProperty("mail.smtp.host", "smtp.gmail.com");
        property.setProperty("mail.smtp.starttls.enable", "true");
        //property.setProperty("mail.smpt.port", "25");
        property.setProperty("mail.smtp.user", "myEmail@gmail.com");
        property.setProperty("mail.smtp.auth", "true");

        System.out.println("Mail Check 1");

        Session session = Session.getDefaultInstance(property);
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress("myEmail@gmail.com"));
        message.addRecipient(Message.RecipientType.TO, new InternetAddress("myEmail@gmail.com"));

        System.out.println("Mail Check 2");

        message.setSubject("Oil Error Report");
        message.setText(emailMessage);

        System.out.println("Mail Check 3");

        Transport transport = session.getTransport("smtps");
        transport.connect("smtp.gmail.com",465,"myEmail@gmail.com","myPassword");
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();

        System.out.println("Mail Sent");
    }catch(Exception ex){
        System.out.println("Mail fail");
        System.out.println(ex);
    }

我开始进行 Mail Check 3，然后出现以下异常:

com.sun.mail.smtp.SMTPSendFailedException: 530-5.5.1 Authentication Required. Learn more at
530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 u3sm10254140ioi.27 - gsmtp

这没有意义，因为我将 mail.smtp.auth 设置为 true。我查看了过去的答案，并尝试在发布之前让它工作一段时间。我假设它很简单..任何帮助将不胜感激!谢谢!

Answer 1

public class EmailSender {    
    public void sendEmail(String emailMessage){

        try{
            final String fromEmail = ""; //requires valid gmail id
            final String password = ""; // correct password for gmail id
            final String toEmail = ""; // can be any email id 

            System.out.println("TLSEmail Start");
            Properties props = new Properties();
            props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host
            props.put("mail.smtp.port", "587"); //TLS Port
            props.put("mail.smtp.auth", "true"); //enable authentication
            props.put("mail.smtp.starttls.enable", "true"); //enable STARTTLS

                //create Authenticator object to pass in Session.getInstance argument
            Authenticator auth = new Authenticator() {
                //override the getPasswordAuthentication method
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(fromEmail, password);
                }
            };
            Session session = Session.getInstance(props, auth);

            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(fromEmail));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(toEmail));

            System.out.println("Mail Check 2");

            message.setSubject("Oil Error Report");
            message.setText(emailMessage);

            System.out.println("Mail Check 3");

            Transport.send(message);
            System.out.println("Mail Sent");
        }catch(Exception ex){
            System.out.println("Mail fail");
            System.out.println(ex);
        }
    }
}

这是让它工作所需的代码!现在是 2014 年 11 月，目前适用于 gmail!我希望这段代码能帮助节省一些人的时间，花了我很多时间!除了此代码，您还必须更改您的电子邮件设置以允许此类电子邮件。第一次尝试时，您会收到一封来自谷歌的电子邮件，它将引导您完成更改设置的过程。

谢谢，祝你好运!