How to fix javax.mail.AuthenticationFailedException Invalid credentials

Question

Though I have used correct credentials I am unable to read emails using java

I have tried pop3 AND IMAP. All are displaying invalid credentials for all the EmailId's tried

Session session = Session.getDefaultInstance(new Properties( ));
Store store = session.getStore("imaps");
store.connect("imap.googlemail.com", 993, "example@gmail.com", password);
Folder inbox = store.getFolder( "INBOX" );
inbox.open( Folder.READ_ONLY );

// Fetch unseen messages from inbox folder
Message[] messages = inbox.search(
    new FlagTerm(new Flags(Flags.Flag.SEEN), false));

// Sort messages from recent to oldest
Arrays.sort( messages, ( m1, m2 ) -> {
  try {
    return m2.getSentDate().compareTo( m1.getSentDate() );
  } catch ( MessagingException e ) {
    throw new RuntimeException( e );
  }
} );

for ( Message message : messages ) {
  System.out.println( 
      "sendDate: " + message.getSentDate()
      + " subject:" + message.getSubject() );
}

I should be able to read email

There could be chances that Gmail account's third party access security check is disabled. — AJ., Jun 10 '19 at 10:59
I have enabled less secure app and now I got Username and password not accepted. — Rishi Rdy, Jun 10 '19 at 11:09
There are lots of solution for your error ... check this ..https://www.digitalocean.com/community/questions/unable-to-send-mail-through-smtp-gmail-com — AJ., Jun 10 '19 at 11:12
https://answers.microsoft.com/en-us/windowslive/forum/all/username-and-password-not-accepted-by-popgmailcom/c61c8736-e91c-4262-a004-96ae7c3639a0 — AJ., Jun 10 '19 at 11:15
for solve this problem you welcome read my answer here https://stackoverflow.com/a/72592946/2347210 — Vladi, Jul 25 '22 at 08:25

score 19 · Accepted Answer · answered Jun 10 '19 at 11:01

19

The reason is that email box doesn't allow connections from less secure apps. Your code is fine.

Exception in thread "main" javax.mail.AuthenticationFailedException: [AUTHENTICATIONFAILED] Invalid credentials (Failure)
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:474)
    at javax.mail.Service.connect(Service.java:275)

The above exception is thrown when less secure app access is tured OFF. Turn this ON to make the access available via program.

answered Jun 10 '19 at 11:01

TechFree

2,600
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18

I have enabled less secure app and now I got Username and password not accepted. – Rishi Rdy Jun 10 '19 at 11:11
Post the exception trace, as I tested your code and it worked fine for me – TechFree Jun 10 '19 at 11:15
google no longer support this option. – Nandan Jun 23 '22 at 09:37
no longer support this option here the updated answer https://stackoverflow.com/a/72592946/2347210 – Vladi Jul 25 '22 at 08:25

Nandan · Answer 2 · 2022-06-23T11:01:01.260

2

Google no longer support 'Less Secure App Access'. Instead you need to enable 2- step verification on your google account and generate an app password to use with your mail application.

Use full links:

Gmail SMTP example

edited Jun 23 '22 at 11:01

answered Jun 23 '22 at 10:10

Nandan

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Thank you @Nandan for the update. This solution helps after google policy changes. – Ritesh Singh Jun 24 '22 at 09:53

How to fix javax.mail.AuthenticationFailedException Invalid credentials

2 Answers2