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email – Java API works in reading GMAIL any more?-Exceptionshub

Posted by: admin February 25, 2020 Leave a comment


I have tried different Java(API Based) Programs to read Gmail, as below with correct Email/Passwords, but I am getting below Exception always. Is java APIs no longer works to read Gmails ?

import java.util.Properties;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Store;

public class CheckingMails {
    public static void check(String host, String storeType, String user, String password) {
        try {
            Properties properties = new Properties();

            properties.put("mail.pop3.host", host);
            properties.put("mail.pop3.port", "995");
            properties.put("mail.pop3.starttls.enable", "true");
            Session emailSession = Session.getDefaultInstance(properties);

            // create the POP3 store object and connect with the pop server
            Store store = emailSession.getStore("pop3s");

            store.connect(host, user, password);

            // create the folder object and open it
            Folder emailFolder = store.getFolder("INBOX");

            // retrieve the messages from the folder in an array and print it
            Message[] messages = emailFolder.getMessages();
            System.out.println("messages.length---" + messages.length);

            for (int i = 0, n = messages.length; i < n; i++) {
                Message message = messages[i];
                System.out.println("Email Number " + (i + 1));
                System.out.println("Subject: " + message.getSubject());
                System.out.println("From: " + message.getFrom()[0]);
                System.out.println("Text: " + message.getContent().toString());


            // close the store and folder objects

        } catch (NoSuchProviderException e) {
        } catch (MessagingException e) {
        } catch (Exception e) {

    public static void main(String[] args) {

        String host = "pop.gmail.com";// change accordingly
        String mailStoreType = "pop3";
        String username = "[email protected]";// change accordingly
        String password = "CorrectPassword";// change accordingly

        check(host, mailStoreType, username, password);



Error log:

javax.mail.AuthenticationFailedException: [AUTH] Username and password not accepted. at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:209) at javax.mail.Service.connect(Service.java:295) at javax.mail.Service.connect(Service.java:176) at zEmails.CheckingMails.check(CheckingMails.java:31) at zEmails.CheckingMails.main(CheckingMails.java:71)

How to&Answers:

Thanks Friends and Seshidhar G

Allowing ‘low secure app’ for the emailID am am able to connect and read Email. Currently I am working on rest of the requirements.