CODEWITHSUNDEEP
javajakarta-mail
simplyblue
simplyblue

Reputation: 2339

JavaMail with Gmail: 535-5.7.1 Username and Password not accepted

I am receiving error when I try to send a mail using JavaMail API and I am sure that the username and password are 100% correct. The Gmail account which I'm connecting is an older account, because they say it takes time for it to work with new accounts.

Error being received:

DEBUG SMTP RCVD: 535-5.7.1 Username and Password not accepted. Learn more at

535 5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 x35sm3011668
wfh.6

javax.mail.SendFailedException: Sending failed;
  nested exception is:
        javax.mail.AuthenticationFailedException
        at javax.mail.Transport.send0(Transport.java:218)
        at javax.mail.Transport.send(Transport.java:80)
        at Main.<init>(Main.java:41)
        at Main.main(Main.java:51)

...and this is my code:

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
 
public class Main
{
    String  d_email = "[email protected]",
            d_password = "pass",
            d_host = "smtp.gmail.com",
            d_port  = "465",
            m_to = "[email protected]",
            m_subject = "Testing",
            m_text = "testing email.";
    
    public Main()
    {
        Properties props = new Properties();
        props.put("mail.smtp.user", d_email);
        props.put("mail.smtp.host", d_host);
        props.put("mail.smtp.port", d_port);
        props.put("mail.smtp.starttls.enable","true");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.debug", "true");
        props.put("mail.smtp.socketFactory.port", d_port);
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.socketFactory.fallback", "false");
 
        SecurityManager security = System.getSecurityManager();
 
        try
        {
            Authenticator auth = new SMTPAuthenticator();
            Session session = Session.getInstance(props, auth);
            session.setDebug(true);
            MimeMessage msg = new MimeMessage(session);
            msg.setText(m_text);
            msg.setSubject(m_subject);
            msg.setFrom(new InternetAddress(d_email));
            msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
            Transport.send(msg);
        }
        catch (Exception mex)
        {
            mex.printStackTrace();
        } 
    }
    
    public static void main(String[] args)
    {
        Main blah = new Main();
    }
 
    private class SMTPAuthenticator extends javax.mail.Authenticator
    {
        public PasswordAuthentication getPasswordAuthentication()
        {
            return new PasswordAuthentication(d_email, d_password);
        }
    }
}

Upvotes: 32

Views: 97038

Answers (9)

Manas Kumar Maharana
Manas Kumar Maharana

Reputation: 935

Now, Google not supported Less Secure Apps so we are getting this issue. You follow bellow steps to resolve your Authentication issue during send mail using SMTP.

1 - Enable 2-step Verification in your mail
2 - Once you enabled above, you will able to see App Passwords option in same Security tab
3 - Now generate App Password for Other(Custom)
4 - Use this generated password in place of your gmail password in your code.

Enjoy :)

Upvotes: 4

manjuanth s
manjuanth s

Reputation: 1

i turned off antivirus and enabled less secure app in gmail, but now google has disabled this option, for that to work you need to do two steps verification and genetare 16 digit password and paste in application.properties replace this 16 digit password.

Upvotes: 0

Fakipo
Fakipo

Reputation: 190

You need to turn on the 'less secure apps allowed' in gmail settings.

Upvotes: 1

Gaurav Dalal
Gaurav Dalal

Reputation: 81

If the same credential was working earlier and it stopped working then the primary reason for this problem is password mismatch/changed on gmail client and not updated in Jenkins or other CI server. If that is not the case then check for reasons mentioned by @BalusC

Upvotes: 0

Ashwath
Ashwath

Reputation: 151

I faced the same problem although my username and password were correct, but after some research, I was able to send email through applications by enabling the Less secure app access option on my Gmail account. You can find this feature under security option in the left menu.

Related links:

Upvotes: 7

Tam
Tam

Reputation: 3987

I had same issue : I refer this link, I have followed below steps it worked for me.

By default Gmail account is highly secured. When we use gmail smtp from non gmail tool, email is blocked. To test in our local environment, make your gmail account less secure as

  1. Login to Gmail.
  2. Access the URL as https://www.google.com/settings/security/lesssecureapps
  3. Select "Turn on"

Upvotes: 54

Arefe
Arefe

Reputation: 12417

I have the same error message and this is how I have solved the issue,

Create an app password: here is how we can generate an app password, 

1. Visit your App passwords page. You may be asked to sign in to your Google Account.

2. At the bottom, click Select app and choose the app you’re using.
Click Select device and choose the device you’re using.

3. Select Generate.

4. Follow the instructions to enter the App password (the 16 character code in the yellow bar) on your device.

5. Select Done.

I worked for a Spring boot app and I get the app password say, sadsadaffferere for the email address, [email protected]. So, I need to configure the app properties like the following, 

# the email settings
# ------------------
spring.mail.host=smtp.gmail.com
[email protected]
spring.mail.password=sadsadaffferere
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.socketFactory.port=465
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.smtp.socketFactory.fallback=false
[email protected]

Everything works fine afterwards

Upvotes: 1

Jifeng Zhang
Jifeng Zhang

Reputation: 5147

I encountered the exact same problem, for me the reason is I have turned on 2-step verification on my gmail account.

After generating a new application-specific password and use that in my java application, this "535 5.7.1" issue is gone.

You can generate a new application-specific password following this official google guide.

Upvotes: 13

BalusC
BalusC

Reputation: 1108722

The given code snippet works fine on my Gmail account, so this problem lies somewhere else. Did you follow the link given in the error message? It contains the following hints:

  • Make sure that you've entered your full email address (e.g. [email protected])
  • Re-enter your password to ensure that it's correct. Keep in mind that passwords are case-sensitive.
  • Make sure your mail client isn't set to check for new mail too often. If your mail client checks for new messages more than once every 10 minutes, your client might repeatedly request your username and password.

Especially the last point is important. Google is very strict in this. If you're trying to connect Gmail for example more than 10 times in a minute programmatically, then you may already get blocked. Have a bit of patience, after some time it will get unblocked.

If you'd like more freedom in sending mails, I recommend to look for a dedicated mail host or to setup your own mail server, such as Apache James or Microsoft Exchange. I've already answered this in detail in one of your previous questions.

Upvotes: 13

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