Error missing credentials for plain

Complete the following form to have your issue reviewed

I am receiving following error

(node:14889) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: Missing credentials for "PLAIN"

1. Is this a bug in Nodemailer?

• Yes
• No

Note. Non bug issues are closed by default. Head to Stack Overflow for support questions: https://stackoverflow.com/search?q=nodemailer

2. Is this related to Gmail / Hotmail / Yahoo?

• Yes
• No

Note. If you can not log in to Gmail then Gmail is blocking you. These issues are closed by default.

3. Is your issue related to SSL/TLS errors?

• Yes
• No

Note. Most probably you are trying to connect to a server with a self-signed/expired cert or the server supports only ancient ciphers or you are using an antivirus that intercepts your internet connection. Such issues are closed by default.

4. Is your issue related to connection timeouts

• Yes
• No

Note. Most probably you are firewalled out from the server. Such issues are closed by default.

5. Do you get SyntaxError when using Nodemailer?

• Yes
• No

Note. You are using too old version of Node.js, please upgrade. Such issues are closed by default.

6. Nodemailer version you are having problems with (eg. v1.3.7)

v4.5.0
…

7. Node.js version you are using (run node -v to see it, eg v5.5.0)

v6.6.0
…

8. Your operating system (eg. Windows 10, Ubuntu 14.04 etc.)

Ubuntu 16.04
…

9. Nodemailer configuration settings (if applicable)

const nodemailer = require('nodemailer');
const xoauth2 = require('xoauth2');

const config = require('../../config');

/**
 * @param {{ text: String, from: String, to: String, subject: String, html: String }} options
 * @returns {Promise<any>}
 */
module.exports = function sendMail(options) {
  const transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: {
      xoauth2: xoauth2.createXOAuth2Generator({
        user: config.googleAuth.email,
        clientId: config.googleAuth.clientID,
        clientSecret: config.googleAuth.clientSecret,
        refreshToken: config.googleAuth.refreshToken
      })
    }
  });

  return new Promise((resolve, reject) => {
    transporter.sendMail(options, error => {
      if (error) {
        reject(error);
      } else {
        resolve();
      }
    });
  });
};

…

10. If possible, include a minimal test case that can be used to verify your issue (link to a gist would be great!)

…

Thanks!

What’s Causing This Error?

This error occurs on Node.js applications deployed on Heroku without proper configuration of environment variables. Additionally, you may also run into this error due to invalid configurations.

Solution — Here’s How To Resolve It

Resolving the error by updating configurations

Ensure that you have configured Nodemailer successfully. You may use the snippet shown below as a guide for configuring Nodemailer.

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const transporter = nodemailer.createTransport({
    service: 'gmail', // or your own SMTP 
    providerauth: {user: 'your-gmail@gmail.com'}, // user -> important
    pass: 'your-password' // pass -> important (do not use password)
});

const mailOptions = {
    from: 'SENDER-EMAIL',
    to: 'RECIPIENT-EMAIL',
    subject: 'SUBJECT',
    text: 'EMAIL BODY',
};
transporter.sendMail(mailOptions,(err,res)=>{
    if(err){
        console.log(err);
    }
    else {
        console.log('The email was sent successfully');
    }
});

Additionally, if you are using Google SMTP servers, ensure that you have turned on Less Secure Sign In. For users that use Office 365, ensure that SMTP authentication is turned on for your Microsoft account.

Resolving the error in Heroku

You will need to configure your Nodemailer environment variables in the deployed Heroku application.

To do so, first, log in to your Heroku console. Afterward, click on the deployed application and click «Settings.» You will see the output shown below.

Figure 01 — Heroku application settings

Hereafter, click on «Reveal Config Vars.» It will display the output shown below.

Figure 02 — Viewing config variables in the Heroku console

Then, add the environment variables that you use with Nodemailer.

Figure 03 — Adding config variables to Heroku

Finally, re-rerun the application to see the emails getting sent successfully!

Resolving steps if none of the above works

If none of the actions work for you, ensure that you have provided the correct username/password, port, and protocol. Additionally, if you use dotenv to load the environment file, ensure that you properly access the configurations.

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// add this snippet to the top of your Node.js file to initialize the .env file that you have created to store the env variables.
const dotenv = require('dotenv');
dotenv.config();

// access env
console.log(process.env.NODE_MAILER_USERNAME);

Answer by Journee Dougherty

I was able to solve this problem by using number 3, Set up 3LO authentication, example from the nodemailer documentation (link: https://nodemailer.com/smtp/oauth2/). My code looks like this:,If you are going to use the basic authentication (your current configuration) you will need to activate less secure app access from the following link to your google account which was stated in node mailer site here.,Using OAuth2 in nodemailer official docs, which contain a more simplified version of the secure method (but you will need to follow the steps mentioned in the first link till you get the client_ID,client_Secret, Refresh_Token, and Access Token before proceeding with it).,

Is it possible for LEO satellites to detect a usable signal from regular mobile phones on the ground?

I was able to solve this problem by using number 3, Set up 3LO authentication, example from the nodemailer documentation (link: https://nodemailer.com/smtp/oauth2/). My code looks like this:

let transporter = nodemailer.createTransport({
    host: 'smtp.gmail.com',
    port: 465,
    secure: true,
    auth: {
        type: 'OAuth2',
        user: '[email protected]',
        clientId: '000000000000-xxx0.apps.googleusercontent.com',
        clientSecret: 'XxxxxXXxX0xxxxxxxx0XXxX0',
        refreshToken: '1/XXxXxsss-xxxXXXXXxXxx0XXXxxXXx0x00xxx',
        accessToken: 'ya29.Xx_XX0xxxxx-xX0X0XxXXxXxXXXxX0x'
    }
});

Answer by Whitley Davidson

i am having this issue as with node mailer,for anyone having this issue,check this out https://community.nodemailer.com/using-gmail/,According to an example i don`t have to provide username and password

(node:14889) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: Missing credentials for "PLAIN"

Answer by Jose Patton

I’m trying to use nodemailer in my contact form to receive feedback and send them directly to an email. This is the form below.,I’m getting the error Missing credentials for «PLAIN». Any help is appreciated, thank you very much.,To use OAuth2 in Nodemailer, refer: https://nodemailer.com/smtp/oauth2/,Gmail / Google app email service requires OAuth2 for authentication. PLAIN text password will require disabling security features manually on the google account.

I’m trying to use nodemailer in my contact form to receive feedback and send them directly to an email. This is the form below.

<form method="post" action="/contact">
      <label for="name">Name:</label>
      <input type="text" name="name" placeholder="Enter Your Name" required><br>
      <label for="email">Email:</label>
      <input type="email" name="email" placeholder="Enter Your Email" required><br>
      <label for="feedback">Feedback:</label>
      <textarea name="feedback" placeholder="Enter Feedback Here"></textarea><br>
      <input type="submit" name="sumbit" value="Submit">
</form>

This is what the request in the server side looks like

app.post('/contact',(req,res)=>{
let transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: {
        user: '[email protected]',
        password: 'password'
    }
});
var mailOptions = {
    from: req.body.name + '<' + req.body.email + '>',
    to: '[email protected]',
    subject: 'Plbants Feedback',
    text: req.body.feedback 
};
transporter.sendMail(mailOptions,(err,res)=>{
    if(err){
        console.log(err);
    }
    else {

    }
});

Answer by Everleigh O’Donnell

var email_smtp = nodemailer.createTransport({      
  host: "smtp.gmail.com",
  auth: {
    type: "login", // default
    user: "[email protected]",
    pass: "PASSWORD_HERE"
  }
});

Answer by Sloane Leon

Custom authentication

,text is the readable part of server response (“Authentication successful”),NTLM handler to authenticate using NTLM,Authentication options can be found from the auth property and credentials from auth.credentials (eg. ctx.auth.credentials.pass for the password)

let transporter = nodemailer.createTransport({
    host: 'smtp.example.com',
    port: 465,
    secure: true,
    auth: {
        type: 'custom',
        method: 'MY-CUSTOM-METHOD', // forces Nodemailer to use your custom handler
        user: 'username',
        pass: 'verysecret'
    },
    customAuth: {
        'MY-CUSTOM-METHOD': ctx => {
            ...
        }
    }
});

Answer by Sloane Bishop

Example 1: Error: Missing credentials for «PLAIN»

var email_smtp = nodemailer.createTransport({      
  host: "smtp.gmail.com",
  auth: {
    type: "login", // default
    user: "[email protected]",
    pass: "PASSWORD_HERE"
  }
});

Example 2: Error: Missing credentials for «PLAIN»

var email_smtp = nodemailer.createTransport({      
  host: "smtp.gmail.com",
  auth: {
    type: "OAuth2",
    user: "[email protected]",
    clientId: "CLIENT_ID_HERE",
    clientSecret: "CLIENT_SECRET_HERE",
    refreshToken: "REFRESH_TOKEN_HERE"                              
  }
});

Answer by Belle Estrada

When submitting the form, it gives an error Error: Missing credentials for «PLAIN»,Askto.pro is Information Technologies oriented Questions and Answers platform.,
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const express = require('express');
const bodyParser = require('body-parser');
const nodemailer = require('nodemailer');
const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));

app.post('/contacts', (req, res) => {
    nodemailer.createTestAccount((err, account) => {
        const htmlEmail = `
        <h3>Contact details</h3>
        <ul>
        <li>Name: ${req.body.name}</li>
        <li>Email: ${req.body.email}</li>
        </ul>
        <h3>Message</h3>
        <p>${req.body.message}</p>
        `;
        let transporter = nodemailer.createTransport({
            service: 'gmail',
            host: 'smtp.gmail.com',
            port: 587,
            secure: true,
            requireTLS: true,
            auth: {
                user: process.env.REACT_APP_EMAIL,
                pass: process.env.REACT_APP_PASS
            }
        })

        transporter.verify(function(error, success) {
            if (error) {
              console.log(error);
            } else {
              console.log("Server is ready to take our messages");
            }
          });
        let mailOptions = {
            from: '',
            to: '[email protected]',
            subject: 'New message',
            text: req.body.message,
            html: htmlEmail
        }
        transporter.sendMail(mailOptions, (err, info) => {
            if(err) {
                return console.log(err)
            }
            console.log('Message sent: %s', info.message)
            // console.log('Message URL: %s', nodemailer.getTestMessageUrl(info))
        })
    })
})

const PORT = process.env.PORT || 3001;

if (process.env.NODE_ENV === 'production') {
    // Serve any static files
    app.use(express.static(path.join(__dirname, 'client/build')));
      
    // Handle React routing, return all requests to React app
    app.get('*', function(req, res) {
      res.sendFile(path.join(__dirname, 'client/build', 'index.html'));
    });
  }

app.listen(PORT, () => {
    console.log(`Server listening on port ${PORT}`);

})

Answer by Orlando Foley

Find more questions by tags Node.jsExpress.js

const express = require('express');
const bodyParser = require('body-parser');
const nodemailer = require('nodemailer');
const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));

app.post('/contacts', (req, res) => {
 nodemailer.createTestAccount((err, account) => {
 const htmlEmail = `
 the <h3>Contact details</h3>
the <ul>
 the <li>Name: ${req.body.name}</li>
 the <li>Email: ${req.body.email}</li>
</ul>
the <h3>Message</h3>
<p>${req.body.message}</p>
`;
 let transporter = nodemailer.createTransport({
 service: 'gmail',
 host: 'smtp.gmail.com',
 port: 587,
 secure: true,
 requireTLS: true,
 auth: {
 user: process.env.REACT_APP_EMAIL,
 pass: process.env.REACT_APP_PASS
}
})

 transporter.verify(function(error, success) {
 if (error) {
console.log(error);
 } else {
 console.log("Server is ready to take our messages");
}
});
 let mailOptions = {
 from:"
 to: '[email protected]',
 subject: 'New message',
 text: req.body.message
 html: htmlEmail
}
 transporter.sendMail(mailOptions, (err, info) => {
 if(err) {
 return console.log(err)
}
 console.log('Message sent: %s', info.message)
 // console.log('Message URL: %s' nodemailer.getTestMessageUrl(info))
})
})
})

const PORT = process.env.PORT || 3001;

if (process.env.NODE_ENV === 'production') {
 // Serve any static files
 app.use(express.static(path.join(__dirname, 'client/build')));

 // Handle routing React, return all requests to the React app
 app.get('*', function(req, res) {
 Res. sendFile(path.join(__dirname, 'client/build', 'index.html'));
});
}

app.listen(PORT, () => {
 console.log(`Server listening on port ${PORT}`);

})

We don’t need to lower our Google Account Security for this. This works for me on localhost and live server. Versions: node 12.18.4, nodemailer ^6.4.11.

STEP 1:
Follow setting up your Google Api Access in this video AND IGNORE his code (it didn’t work for me): https://www.youtube.com/watch?v=JJ44WA_eV8E

STEP 2:
Try this code in your main app file after you install nodemailer and dotenv via npm i nodemailer dotenv:

    require('dotenv').config();  //import and config dotenv to use .env file for secrets
    const nodemailer = require('nodemailer');

    function sendMessage() {
      try {
        // mail options
        const mailOptions = {
          from: "[email protected]",
          to: "[email protected]",
          subject: "Hey there!",
          text: "Whoa! It freakin works now."
        };
        // here we actually send it
        transporter.sendMail(mailOptions, function(err, info) {
          if (err) {
            console.log("Error sending message: " + err);
          } else {
            // no errors, it worked
            console.log("Message sent succesfully.");
          }
        });
      } catch (error) {
        console.log("Other error sending message: " + error);
      }
    }

    // thats the key part, without all these it didn't work for me
    let transporter = nodemailer.createTransport({
      host: 'smtp.gmail.com',
      port: 465,
      secure: true,
      service: 'gmail',
      auth: {
            type: "OAUTH2",
            user: process.env.GMAIL_USERNAME,  //set these in your .env file
            clientId: process.env.OAUTH_CLIENT_ID,
            clientSecret: process.env.OAUTH_CLIENT_SECRET,
            refreshToken: process.env.OAUTH_REFRESH_TOKEN,
            accessToken: process.env.OAUTH_ACCESS_TOKEN,
            expires: 3599
      }
    });

    // invoke sending function
    sendMessage();

Your .env file for the above code should look similar to this:

[email protected]
GMAIL_PASSWORD=lakjrfnk;wrh2poir2039r
OAUTH_CLIENT_ID=vfo9u2o435uk2jjfvlfdkpg284u3.apps.googleusercontent.com
OAUTH_CLIENT_SECRET=og029503irgier0oifwori
OAUTH_REFRESH_TOKEN=2093402i3jflj;geijgp039485puihsg[-9a[3;wjenjk,ucv[3485p0o485uyr;ifasjsdo283wefwf345w]fw2984329oshfsh
OAUTH_ACCESS_TOKEN=owiejfw84u92873598yiuhvsldiis9er0235983isudhfdosudv3k798qlk3j4094too283982fs

Привет, я пытаюсь настроить nodemailer с помощью Gmail, и пока что слежу за этим видео:

Вот мой код:
`
const nodemailer = require («nodemailer»);
const xoauth2 = требуется (‘xoauth2’);

// create reusable transporter object using the default SMTP transport
let transporter = nodemailer.createTransport({
  service: "gmail",
  auth: {
    xoauth2:  xoauth2.createXOAuth2Generator({
      user: "[email protected]",
      clientId: 'xxxxxxxxxxxxxxxxx',
      clientSecret: 'xxxxxxxxxxxxxxxxx',
      refreshToken: 'xxxxxxxxxxxxxxxxx'
    })
  }
});

// send mail with defined transport object
let mailOptions = {
  from: '"Fred Foo 👻" <[email protected]>', // sender address
  to: "[email protected]", // receiver address
  subject: "Hello ✔", // Subject line
  text: "Hello world?", // plain text body
  html: "<b>Hello world?</b>" // html body
};

transporter.sendMail(mailOptions, (error, res) => {
  if (error) {
    console.log(error);
  }else {
    console.log("email is sent");
  }
})

`

Я получаю эту ошибку:
{ Error: Missing credentials for "PLAIN"
at SMTPConnection._formatError (/home/xxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:781:19)
at SMTPConnection.login (/home/xxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:452:38)
at connection.connect (/home/xxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-transport/index.js:271:32)
at SMTPConnection.once (/home/xxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:209:17)
at Object.onceWrapper (events.js:286:20)
at SMTPConnection.emit (events.js:198:13)
at SMTPConnection._actionEHLO (/home/xxxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:1309:14)
at SMTPConnection._processResponse (/home/xxxxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:940:20
)
at SMTPConnection._onData (/home/xxxxxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js:746:14)
at TLSSocket.SMTPConnection._onSocketData (/home/xxxxxxxxx/projects/my-projects/test/node_modules/nodemailer/lib/smtp-connection/index.js
:189:46) code: 'EAUTH', command: 'API' }

Номера версий

ОС: Ubuntu 19.04
узел 10.16.0
nodemailer 6.3.0

Я не понимаю, какие учетные данные отсутствуют, поскольку я их предоставил. Я просмотрел почти все статьи по этой проблеме, и ни одна из них не помогла.

Также быстрый вопрос: можно ли использовать nodemailer только в приложении create-response-app без необходимости настраивать для него серверную часть?

заранее спасибо