Email sending error: Invalid username and password

Encountering this issue in Postman:

{
     "code": "EAUTH",
     "response": "535-5.7.8 Username and Password not accepted. More information available at\n535 5.7.8  
                  https://support.google.com/mail/?p=BadCredentials x7- 
                  20020aa784c7000000b005058d220b37sm21945855pfn.64 - gsmtp",
     "responseCode": 535,
     "command": "AUTH PLAIN"
}

Email And password not accepted, I have already gone through this question, and attempted various solutions to fix the issue, but none have been successful.

Nodemailer code snippet:

let transporter = nodemailer.createTransport({
   host: 'smtp.gmail.com',
   port: 587,
   secure: false,
   auth: {
     user:'<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a7cadec0cac6cecbe7c0cac6cecb89c4c8ca">[email protected]</a>',
     pass: 'mypassword'
   }
})

const info = await transporter.sendMail({
       from:'<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4c21352b212d25200c2b212d2520622f2321">[email protected]</a>',
       to: "<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c4b4a1b6b7abaa84a3a9a5ada8eaa7aba9">[email protected]</a>",
       subject: "subject",
       text: "text",
       html: `<h1> hello </h1>`
})

Steps taken:

  • Generated an app-specific password and substituted it for the actual password.

  • Enabled captcha (link)

  • Enabled IMAP setting in Gmail->Settings->Forwarding and POP/IMAP

Referenced less secure app and Google account

Any assistance will be greatly appreciated.

javascriptexpressgmailnodemailer

Answer №1

  • To begin, ensure you are using a valid Gmail account with your own credentials.
  • Make sure to enable access for less secure apps in your Google account settings by visiting this link: Allow less secure apps From your Google Account
const nodemailer = require('nodemailer');

const sendEmail = async () => {
const transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
  user: 'sender gmail',
  pass: 'sender password',
  },
});

const options = {
from: 'sender gmail',
to: 'receiver gmail',
subject: 'subject',
text: 'text',
};

await transporter.sendMail(options);
}; 

module.exports = sendEmail;

Answer №2

It is no longer possible to log in to the SMTP server using a username and password. One alternative could be using an app-specific password, but with Less secure apps & your Google Account being phased out soon, this may not be the most reliable option.

https://i.sstatic.net/crJZh.png

My suggestion would be to explore Xoauth2 as a way to authorize users without depending on their passwords. Consider adapting the javascript-implicit-flow model according to this guide.

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