Send email with attachment Second Method... Should work with Azure.

emailImageAttachment.js

var sg = require('sendgrid');
var email = new sg.Email({
  to: '[email protected]',
  toname: 'Test Person',
  from: '[email protected]',
  fromname: 'Test Sender',
  subject: 'Email Test with Image',
  text: 'This is a test.',
  html: 'this is a test <img src="cid:testme" alt="graphic"/>',
});

email.addFile({
  filename: 'SendGrid.png',
  url: 'http://i.techgox.com/img/companies/startups/SendGrid.png'
});

var sendgrid = new sg.SendGrid('username','password');
sendgrid.send(email, function(success, error) {
    if(!success) console.error(error);
});