使用java发送邮件

Question

我试图从域发送邮件，但得到一些错误。

package SendingClass;

import java.util.*;  

import java.util.Date;
import java.util.Properties; 
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;

import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendEmail  
{  
public static void main(String [] args)
{
    String host="chnmail.hcl.com";
    final String user="[e-mail]";
    final String password="*******";
    String to="[e-mail]";

    //Get the session object  
    Properties props = new Properties();  
    props.put("mail.smtp.host",host);  
    props.put("mail.smtp.auth", "true");  


    //new
    Session session = Session.getDefaultInstance(props,  
    new javax.mail.Authenticator() 
    {  
            protected PasswordAuthentication getPasswordAuthentication() 
            {  
                return new PasswordAuthentication(user,password);  
            }  
    });  


     //Compose the message  
    try 
    {  
        MimeMessage message = new MimeMessage(session);  
        message.setFrom(new InternetAddress(user));
        message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
        message.setSubject("Praise the Lord");
        message.setText("This is simple program of sending email using JavaMail API");

        //send the message  
         Transport.send(message);  
         System.out.println("message sent successfully...");  
    } 
    catch (MessagingException e) 
    {
        e.printStackTrace();
    }  
}
}  

javax.mail.AuthenticationFailedException: No authentication mechansims supported by both server and client
    at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:756)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:669)
    at javax.mail.Service.connect(Service.java:313)
    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 SendingClass.SendEmail.main(SendEmail.java:63)

Answer 1

在服务器允许您登录之前，您很可能需要启用SSL/TLS。根据服务器的要求，将属性mail.smtp.ssl.enable或mail.smtp.starttls.enable设置为true。

此外，您还希望清理一些常见的JavaMail错误。