title: How can I send email with my company domain using Nodemailer?
body: <p>This is my code: I tried using an outlook account </p>
  
  <pre><code>const transporter = nodemailer.createTransport({
    host: 'smtp.office365.com',
    auth: {
      user: 'account@mycompanydomain.com',
      pass: 'password'
    }
  });
  
  transporter.verify(function(error, success) {
    if (error) {
      console.log(error);
    } else {
      console.log('Server is ready to take our messages');
    }
  });
  </code></pre>
  
  <p>Im not sure what is the problem over here. These are the nodemailer logs:</p>
  
  <pre><code>[2020-03-17 09:55:34] DEBUG Creating transport: nodemailer (6.4.5; +https://nodemailer.com/; SMTP/6.4.5[client:6.4.5])
  [2020-03-17 09:55:34] DEBUG [JAejdt6KMrw] Resolved smtp.office365.com as 40.100.54.194 [cache miss]
  [2020-03-17 09:55:35] INFO  [JAejdt6KMrw] Connection established to 40.100.54.194:587
  [2020-03-17 09:55:35] INFO  [JAejdt6KMrw] Connection upgraded with STARTTLS
  [2020-03-17 09:55:36] DEBUG [JAejdt6KMrw] SMTP handshake finished
  [2020-03-17 09:55:41] INFO  [JAejdt6KMrw] User "account@mycompanydomain.com" failed to authenticate
  [2020-03-17 09:55:41] DEBUG [JAejdt6KMrw] Closing connection to the server using "end"
  Error: Invalid login: 535 5.7.3 Authentication unsuccessful [HK2PR04CA0060.apcprd04.prod.outlook.com]
      at SMTPConnection._formatError (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:784:19)
      at SMTPConnection._actionAUTHComplete (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:1523:34)
      at SMTPConnection.&lt;anonymous&gt; (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:1481:18)
      at SMTPConnection._processResponse (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:942:20)
      at SMTPConnection._onData (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:749:14)
      at TLSSocket.SMTPConnection._onSocketData (C:\Users\Nonoy\Documents\sample_apps\nodemailer_outlook_integration\node_modules\nodemailer\lib\smtp-connection\index.js:195:44)
      at TLSSocket.emit (events.js:223:5)
      at addChunk (_stream_readable.js:309:12)
      at readableAddChunk (_stream_readable.js:290:11)
      at TLSSocket.Readable.push (_stream_readable.js:224:10) {
    code: 'EAUTH',
    response: '535 5.7.3 Authentication unsuccessful [HK2PR04CA0060.apcprd04.prod.outlook.com]',
    responseCode: 535,
    command: 'AUTH LOGIN'
  }
  [2020-03-17 09:55:41] INFO  [JAejdt6KMrw] Connection closed
  </code></pre>
  
  <p>PS: my company domain is hosted on Microsoft</p>