title: Mass emails with individual coupon codes
body: <p>I'm trying to send email coupon codes to a list of different people. The idea is that they:</p>
  
  <ol>
  <li>Go to the landing page</li>
  <li>Input their email</li>
  <li>Receive an email with a coupon code for a coffee shop</li>
  </ol>
  
  <p>We're using Mailchimp, and I've been racking my brain trying to figure out how to do this. I've only done design and some JavaScript development, so I'm not even sure where to begin. I was thinking something along the lines of:</p>
  
  <ol>
  <li>Collect all the submitted emails in a <code>csv</code> file</li>
  <li>Purchase the bulk of coupon codes</li>
  <li>Use PHP (SendGrid or Swiftmailer or something) to match up the list of codes with the emails and send them out.</li>
  </ol>
  
  <p>Any thoughts on the best way to do this?</p>