javax.mail.AuthenticationFailedException : Error authenticating with server

Question

我正在尝试使用 Java Mail API 通过 Exchange Server (Office 365) 发送邮件。以下是我的代码:

package com.package;

import java.util.Locale;
import java.util.Properties;
import java.util.ResourceBundle;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

public class Mail {

    ResourceBundle rb = ResourceBundle.getBundle("settings", Locale.ENGLISH);

    public void sendMail(String body, String subject, String receipients) throws MessagingException ////this is used to send the emails
    {

        Message message = new MimeMessage(getSession());

        message.addRecipient(RecipientType.TO, new InternetAddress(receipients));
        message.addFrom(new InternetAddress[] { new InternetAddress(rb.getString("from")) });

        message.setSubject(subject);
        message.setContent(body, "text/plain");

        Transport.send(message);
    }

    private Session getSession() {
        Authenticator authenticator = new Authenticator();

        Properties properties = new Properties();
        System.out.println("Submitter : " + authenticator.getPasswordAuthentication().getUserName());
        properties.setProperty("mail.smtp.submitter", authenticator.getPasswordAuthentication().getUserName());
        properties.setProperty("mail.smtp.auth", "true");
        properties.setProperty("mail.smtp.starttls.enable","true");
        properties.setProperty("mail.smtp.host", "smtp.office365.com");
        properties.setProperty("mail.smtp.port", "587");

        return Session.getInstance(properties, authenticator);
    }

    private class Authenticator extends javax.mail.Authenticator {

        String username, password;
        public Authenticator() {
            username = rb.getString("from");
            password = rb.getString("password");    
        }

        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
    }

    public static void main(String[] args) {
        try {
            new Mail().sendMail("Testing Mail", "Test", "someuser@ymail.com");
            System.out.println("Mail sent");
        } catch (MessagingException e) {
            // TODO Auto-generated catch block
            System.out.println("Unable to send mail");
            e.printStackTrace();
        }
    }
}

当我运行此程序时，控制台显示以下内容:

>>>>>Sending data EHLO HP-WIN8<<<<<<
>>>>>Sending data STARTTLS<<<<<<
>>>>>Sending data EHLO HP-WIN8<<<<<<
>>>>>Sending data AUTH LOGIN<<<<<<
>>>>>Sending data ImFzaGZhcS5tZW1vbkBzdHJlZWJvLmNvbSI=<<<<<<
>>>>>Sending data IlN1bmlAMTk5MSI=<<<<<<
>>>>>Sending data QUIT<<<<<<
Unable to send mail
javax.mail.SendFailedException: Send failure (javax.mail.AuthenticationFailedException: Error authenticating with server)
    at javax.mail.Transport.send(Transport.java:163)
    at javax.mail.Transport.send(Transport.java:48)
    at com.streebo.Mail.sendMail(Mail.java:33)
    at com.streebo.Mail.main(Mail.java:66)
Caused by: javax.mail.AuthenticationFailedException: Error authenticating with server
    at org.apache.geronimo.javamail.transport.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:402)
    at javax.mail.Service.connect(Service.java:265)
    at javax.mail.Service.connect(Service.java:85)
    at javax.mail.Service.connect(Service.java:70)
    at javax.mail.Transport.send(Transport.java:94)
    ... 3 more

我已经检查了我的邮件 ID 和密码，它们是正确的，但我仍然遇到此异常。

请检查我的程序是否有问题。

Answer 1

由于我在使用创建的 gmail.com 测试帐户时遇到了同样的问题(假设使用了正确的凭据)，一个可能的原因可能是

您可能使用了通过 gmail/yahoo/hotmail 托管/创建的电子邮件进行测试。

如果您收到 javax.mail.AuthenticationFailedException，请尝试使用凭据登录邮件帐户，gmail 会要求您输入验证码。登录成功后即可使用Java邮件API发送邮件。

服务提供商这样做是为了防止垃圾邮件发送者，为了进行测试，我们创建一个帐户，并且不会将其用于任何其他用途。