NodeMailer Invalid Login

Question

I am new to node.js programming .I am using nodemailer module for sending emails.

const nodemailer = require ('nodemailer'),
credentials=require('./credentials.js');
var mailTransport=nodemailer.createTransport({
    service:'Gmail',
    auth: {
        user : credentials.gmail.user,
        pass : credentials.gmail.password,
    }
});
function sendMail(mail_id){
    mailTransport.sendMail({
        from: ' "my name" <myname@gmail.com>',
        to : mail_id,   //user@gmail.com
        subject : 'Hello',
        text: "Hello How do u do ?",
    },function(err,info){
        if(err){
            console.log('Unable to send the mail :'+err.message);
        }
        else{
            console.log('Message response : '+info.response);
        }
    });
}
exports.sendMail=sendMail;

This is my program for sending emails to different users. But I am getting Invalid Login . I don't have any idea why this is coming . I am new to node.js and server side scripting.
I am using my gmail username and password for credentials.
Please help me.

Check if this helps : http://stackoverflow.com/questions/19877246/nodemailer-with-gmail-and-nodejs — Raghavan, Nov 15 '14 at 17:48
smtpConfig is yet another config file , similar to how you use "credentials" in your code . — Raghavan, Nov 15 '14 at 17:54
You have to got here https://cloud.google.com/console and get the those from Api's and Auth Section . — Raghavan, Nov 15 '14 at 18:04
Checkout http://www.google.com/accounts/DisplayUnlockCaptcha too. I'm not entirely sure but I think it allows a one time login from supposedly untrusted devices trying to login as you (in this case, nodemailer). — laggingreflex, Nov 15 '14 at 20:30

score 40 · Answer 1 · answered Mar 31 '15 at 20:58

40

One reason could be the 'modern security standard' protection from Gmail.

Check you gmail inbox for any new mail having subject "Google Account: sign-in attempt blocked"

If yes, open the mail and click on the link https://www.google.com/settings/security/lesssecureapps

set 'Access for less secure apps' to 'Turn on'. Try again, it should be working now.

answered Mar 31 '15 at 20:58

Sachin

603
5
10

thank you! I suddenly ran into this issue, and changing this setting fixed it. – user1577390 Nov 23 '18 at 15:55
In my case the issue still existed. Check [Gmail - display unlock captcha](https://www.google.com/accounts/DisplayUnlockCaptcha) – Shivam Jha Jun 20 '21 at 12:23
Looks like less secure apps is no longer supported. Nodemailer GitHub issue on this (https://github.com/nodemailer/nodemailer/issues/1424) has the updated steps. – Nesho Neshev Sep 21 '22 at 15:29

Daniel Danielecki · Answer 2 · 2019-07-29T08:41:53.523

16

Particularly 2 issues: or you don't have enabled Less Secure Apps https://myaccount.google.com/lesssecureapps or you don't have enabled Display Unlock Captcha https://accounts.google.com/DisplayUnlockCaptcha, you need to turn on both of them.

edited Jul 29 '19 at 08:41

answered Jul 29 '19 at 08:00

Daniel Danielecki

8,508
6
68
94

You really need to allow access to the two.. Both less secure app and captacha. The two links above really worked for me.. Thanks. one upvote for u – Yinka Oct 31 '19 at 11:39

Sujay U N · Answer 3 · 2017-09-24T19:10:05.790

15

U need to Enable Security for Apps :

|*| If u r using gmail,

Use :

    service: 'gmail',

Goto : 

    https://myaccount.google.com/lesssecureapps

Enable : 

    Allow less secure apps: ON

|*| If u r using yahoo,

Use :

    service: 'yahoo',

Goto : 

    https://login.yahoo.com/account/security

Enable : 

    Allow apps that use less secure sign in

|*| If u r using Live or Hotmail, No need to enable anything.

Use :

    service: 'hotmail',

edited Sep 24 '17 at 19:10

answered Sep 09 '17 at 11:01

Sujay U N

4,974
11
52
88

3

Says everything you need to know about Microsoft in the last few years – tbjgolden Oct 19 '18 at 12:44

score 9 · Accepted Answer · answered Nov 15 '14 at 19:34

9

Did you double-check your login credentials? Also did you double-check your "from" adress to match your email?

I used the nodemailer for some tests 3 weeks ago with the gmail example given on the github page and it worked like a charm:

https://github.com/andris9/Nodemailer

Invalid login indicates mistyped/wrong credentials.

answered Nov 15 '14 at 19:34

smartbart24

504
4
4

1

I got Invalid login when the FROM address was something different then the username. – bvamos Feb 20 '18 at 20:38

d1fficult · Answer 5 · 2020-07-30T18:08:33.250

6

In my case, turning on less secure apps only was not enough: https://myaccount.google.com/lesssecureapps

I had to enable display unlock captcha also: https://accounts.google.com/DisplayUnlockCaptcha

This solved my issue and i was able to send emails using nodemail and gmail.

This thing is not random actually nodemailer community site itself says to perform the second step to enable captcha, if turning on the less secure apps do not work alone.
https://community.nodemailer.com/using-gmail/

Above image is taken from the nodemailer article link i have shared.

edited Jul 30 '20 at 18:08

answered Jul 30 '20 at 12:34

d1fficult

931
8
18

While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. – Dima Kozhevin Jul 30 '20 at 13:31
Thank you for mentioning this, i have updated the resource! @DimaKozhevin – d1fficult Jul 30 '20 at 16:15

score 2 · Answer 6 · answered Sep 21 '22 at 15:28

Adding this as a separate answer, since the accepted answer no longer works.

Since May 30, 2022, Google no longer supports less secure apps. There is a nodemailer GitHub issue on this (https://github.com/nodemailer/nodemailer/issues/1424) with the updated steps:

Go to https://myaccount.google.com/security
Enable 2FA
Create App Password for Email
Copy that password (16 characters) into the pass parameter in Nodemailer auth.

...,
  auth: {
    user: 'yourmail@gmail.com', 
    pass: 'your_new_app_password', 
  },
...

score 0 · Answer 7 · answered Mar 29 '21 at 07:03

if you have a workspace user account you may need to, as an admin:

Create a user group
Add the user to that group
Go to the user group settings and enable unsecure apps under Security so that other groups emails won't be affected
If that isn't enough (this worked for me after everything was fine for months with first three steps), go to myaccount.google.com and log in with the specific user email and password, go to Security again and turn on less secure apps.

NodeMailer Invalid Login

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