Sending email through nodemailer goes into spam for gmail

Question

I send the email address through nodemailer, which is included in the gmail mailbox if I start from the local server, but gets into gmail spam if I run the script from the Microsoft Azure server. next my script

var nodemailer = require('nodemailer');
var EmailTemplates = require('swig-email-templates');
var smtpConfig =  {
        service: 'smtp.office365.com',
        host: 'smtp.office365.com',
        port: 587,
        starttls: {
            enable: true
        },
        secureConnection: true,
        auth: {
            user: '[e-mail]',
            pass: 'zzzzzz'
        }
    }

var templates = new EmailTemplates();  
var transporter = nodemailer.createTransport(smtpConfig);   

var context = {
  username:'Rajesh',
  email:'[e-mail]',
  link : 'www.google.co.in'
};

templates.render('activate_email.html', context, function(err, html,text, subject) {    

  transporter.sendMail({
    from: '"Product Name👥" <[e-mail]>', // sender address
    to: '[e-mail]',
      subject: 'Account activation',
      html: html,
      text:text    
  });    
});

Answer 1

The truth is that for your problem there are no simple one-line solutions :) There are many reasons why this can happen, and here are some of them:

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Answer 2

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