title: How to send 'Mark as Important' mail using rails
body: <p>I need your views as i don't know is it possible or not.</p>
  
  <p>I want some emails send by my application should <code>'Mark as Important'</code> so that when end user receive this mail in there <code>Evolution/Outlook</code> they should know the importance of email.</p>
  
  <p>Currently when i marked any email using evolution as <code>'Mark as Important'</code> it changes the colour of mail subject and other fields to <code>red</code>.</p>