獲取“ javax.mail.AuthenticationFailedException：連接失敗”錯誤

Question

我想做什么：使用以下代碼，通過smtp.live.com主機發送基本電子郵件，以使用Java程序向某人發送電子郵件：

import java.util.*;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.sun.mail.smtp.SMTPTransport;

public class emailTest {

    public static void main(String[] args) {
        String to = "example@live.com";
        String from = "example@live.com";

        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", "smtp.live.com");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");


        Session session = Session.getDefaultInstance(props);
        session.setDebug(true);

        try {
            MimeMessage message = new MimeMessage(session);

            message.setFrom(new InternetAddress(from));

            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

            message.setSubject("Java");

            message.setText("Java");

            Transport trans = session.getTransport("smtp");
            trans.connect("smtp.live.com", 587, "example@live.com", "password");
            Transport.send(message);

            System.out.println("Message Sent!");

        } catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }

}

問題：當我嘗試發送電子郵件時，出現此錯誤。

javax.mail.AuthenticationFailedException: failed to connect
at javax.mail.Service.connect(Service.java:322)
at javax.mail.Service.connect(Service.java:172)
at javax.mail.Service.connect(Service.java:121)
at javax.mail.Transport.send0(Transport.java:190)
at javax.mail.Transport.send(Transport.java:120)
at emailTest.main(emailTest.java:39)

我的問題：我只想知道我在做錯什么，因為我花了幾個小時試圖找到不同的解決方法。

Answer 1

好的，我很快就發現自己在做什么錯。 我無法使用Transport.send（message）發送消息。

需要進行的更改：相反，我必須使用trans.sendMessage（message，message.getAllRecipients（））。

這是固定代碼：

    import java.util.*;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.sun.mail.smtp.SMTPTransport;

public class emailTest {

    public static void main(String[] args) {
        String to = "example@live.com";
        String from = "example@live.com";

        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", "smtp.live.com");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");


        Session session = Session.getDefaultInstance(props);
        session.setDebug(true);

        try {
            MimeMessage message = new MimeMessage(session);

            message.setFrom(new InternetAddress(from));

            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

            message.setSubject("Java");

            message.setText("Java");

            Transport trans = session.getTransport("smtp");
            trans.connect("smtp.live.com", 587, "example@live.com", "password");
            trans.sendMessage(message, message.getAllRecipients());

            System.out.println("Message Sent!");

        } catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }

}