title: How to Send Mass Email asynchronously from Background without affecting Node.JS Application?
body: <p>I am currently using <code>nodemailer</code> to send Email from my node.js application.
  What i am looking for is "something" that queues and schedules the sending of large number of Emails(500+ per user) by multiple users.</p>
  
  <p>This should run as a separate process in background and must be triggered by my node.js application. 
  <strong>Email sending should not affect my Node.Js application(server) from responding to requests.</strong></p>
  
  <p>I know the above statements seems more like a s/w requirement rather than a problem to fix but i need a robust solution.Please give a brief solution(i.e., what "somethings" to use).</p>