title: How to remove *|MC_PREVIEW_TEXT|* from email title using Mailchimp and or Mandrill
body: <p>I have created an email template which includes merging tags on MailChimp which then gets published to Mandrill.</p>
  
  <p>When my script runs and I receive email, as you can see, <em>|MC_PREVIEW_TEXT|</em> appears in the title.</p>
  
  <p><img src="https://i.stack.imgur.com/a0fYL.png" alt="image"></p>
  
  <p>I have searched both Mandrill and MailChimp for this tag but it is not appearing in either template file.</p>
  
  <p>How do I remove this from the email?</p>