title: How do I put a pound sign in the subject of an email with Rails
body: <p>The following does not work </p>
  
  <pre><code>subject = "The amount of &amp;#163;#{@amount} has been sent to your account".html_safe
  mail(:to =&gt; @email, :subject =&gt; subject, :reply_to =&gt; 'support@xyz.com')
  </code></pre>
  
  <p>Neither does</p>
  
  <pre><code>subject = "The amount of &amp;pound;#{@amount} has been sent to your account".html_safe
  </code></pre>
  
  <p>How can I show the pound sign in the email subject?</p>