Posted on by admin

com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)

Errors:

DEBUG SMTP: use8bit false
MAIL FROM:<nitingautam@……com>
530 authentication required (#5.7.1)
com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)

    at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1333)
    at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:906)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:535)
    at javax.mail.Transport.send0(Transport.java:151)
    at javax.mail.Transport.send(Transport.java:80)
    at practical.Mailer.main(Mailer.java:37)
QUIT
com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)

    at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1333)
    at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:906)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:535)
    at javax.mail.Transport.send0(Transport.java:151)
    at javax.mail.Transport.send(Transport.java:80)
    at practical.Mailer.main(Mailer.java:37)
 

 It requires session authentication

Working Code 

package practical;

import java.security.Security;
import java.util.Properties;

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;

public class GoogleTest {

private static final String SMTP_HOST_NAME = "smtp.gmail.com";
private static final String SMTP_PORT = "465";
private static final String emailMsgTxt = "Test Message Contents";
private static final String emailSubjectTxt = "A test from gmail";
private static final String emailFromAddress = "something@gmail.com";
private static final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
private static final String[] sendTo = {"someone@gmail.com"};

public static void main(String args[]) throws Exception {

Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

new GoogleTest().sendSSLMessage(sendTo, emailSubjectTxt,
emailMsgTxt, emailFromAddress);
System.out.println("Sucessfully Sent mail to All Users");
}

public void sendSSLMessage(String recipients[], String subject,
String message, String from) throws MessagingException {
boolean debug = true;

Properties props = new Properties();
props.put("mail.smtp.host", SMTP_HOST_NAME);
props.put("mail.smtp.auth", "true");
props.put("mail.debug", "true");
props.put("mail.smtp.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
props.put("mail.smtp.socketFactory.fallback", "false");

Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {

protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("something@gmail.com", "pass");
}
});

session.setDebug(debug);

Message msg = new MimeMessage(session);
InternetAddress addressFrom = new InternetAddress(from);
msg.setFrom(addressFrom);

InternetAddress[] addressTo = new InternetAddress[recipients.length];
for (int i = 0; i < recipients.length; i++) {
addressTo[i] = new InternetAddress(recipients[i]);
}
msg.setRecipients(Message.RecipientType.TO, addressTo);

// Setting the Subject and Content Type
msg.setSubject(subject);
msg.setContent(message, "text/plain");
Transport.send(msg);
}
}

37 Replies to “com.sun.mail.smtp.SMTPSendFailedException: 530 authentication required (#5.7.1)”

  16. Hello friends,
    when i run this code i got following error:
    Exception in thread “main” javax.mail.AuthenticationFailedException
    at javax.mail.Service.connect(Service.java:306)
    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 readexcel.GoogleTest.sendSSLMessage(GoogleTest.java:75)
    at readexcel.GoogleTest.main(GoogleTest.java:32)

    Pls suggest me if anybody know the solution.

    Reply

  19. I could not get this code working.
    I don’t know whether because my company might have the smtp port blocked by SonicWALL or some problem.

    It kept on giving me the error : Connection refused : connect.

    regards,

    Reply

  21. I think this is among the most vital information for me. And i’m glad reading your article. But should remark on few general things, The website style is great, the articles is really excellent : D. Good job, cheers

    Reply

  22. Undeniably believe that which you stated. Your favorite reason seemed to be on the web the easiest thing to be aware of. I say to you, I certainly get annoyed while people think about worries that they just do not know about. You managed to hit the nail upon the top and defined out the whole thing without having side effect , people could take a signal. Will likely be back to get more. Thanks

    Reply

  28. even after changing the host name as
    private static final String SMTP_HOST_NAME = “smtp.yahoo.com”
    it is showing exception 530 authentication required

    Reply

  33. Hey there would you mind sharing which blog platform you’re working with?
    I’m planning to start my own blog soon but I’m having a difficult time making a decision between BlogEngine/Wordpress/B2evolution and Drupal.
    The reason I ask is because your layout seems different then most
    blogs and I’m looking for something unique.
    P.S Apologies for being off-topic but I had to ask!

    Reply

  36. It’s a shame you don’t have a donate button!
    I’d most certainly donate to this fantastic blog! I guess for now i’ll settle for book-marking and adding your RSS
    feed to my Google account. I look forward to brand new updates and will share this website with my Facebook group.

    Talk soon!

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *