Username and Password not accepted when using nodemailer?

Question

This is my settingController:

var sendSmtpMail = function (req,res) {
  var transport = nodemailer.createTransport({
  service:'gmail',
   auth: {
             user: "[email protected]",
             pass: "qwerr@wee"
        }
   });
   var mailOptions = {
        from: "[email protected]", 
        to:'[email protected]', 
        subject: req.body.subject+"nodejs working ?", 
        text: "Hello world ?",  
    }
    transport.sendMail(mailOptions, function(error, response){
      if(error){
         res.send("Email could not sent due to error: "+error);
         console.log('Error');
       }else{
         res.send("Email has been sent successfully");
         console.log('mail sent');
      } 
  }); 

in postman I got the error like that:

Email could not sent due to error:

Error: Invalid login: 535-5.7.8 Username and Password not accepted. Learn more at 535 5.7.8  https://support.google.com/mail/?p=BadCredentials g7sm64435626pfj.29 - gsmtp

Answer 1

I think that first you need to Allow less secure apps to access account setting in your google account - by default this settings is off and you simply turn it on. Also you need to make sure that 2 factor authentication for the account is disabled. You can check how to disable it here.

Then I use the following script to send emails from a gmail account, also tested with yahoo and hotmail accounts.

const nodemailer = require('nodemailer');

let transporter = nodemailer.createTransport({
    host: 'smtp.gmail.com',
    port: 587,
    secure: false,
    requireTLS: true,
    auth: {
        user: '[email protected]',
        pass: 'your.password'
    }
});

let mailOptions = {
    from: '[email protected]',
    to: '[email protected]',
    subject: 'Test',
    text: 'Hello World!'
};

transporter.sendMail(mailOptions, (error, info) => {
    if (error) {
        return console.log(error.message);
    }
    console.log('success');
});

If you put the previous code in send-email.js for example, open terminal and write:

node send-email

You should see in the console - success, if the email was send successfully or the error message returned by nodemailer

Don't forget to first do the setting - Allow less secure apps to access account.

I hope this code will be useful for you. Good Luck!