title: how to set a bounce back email address on PHP Pear Mail Queue?
body: <p>I'm using PHP Pear Mail Queue to send queued emails, but I can't get the bounce back (undelivered) emails to work. I'm using Mail_mime to create headers, looks something like that:</p>
  
  <pre><code>        $hdrs = array(
              "From"        =&gt; EMAIL_FROM_ADDRESS, 
              "Reply-To"    =&gt; EMAIL_FROM_ADDRESS, 
              "Return-Path" =&gt; EMAIL_FROM_ADDRESS,
              "To"          =&gt; $recipient, 
              "Subject"     =&gt; $this-&gt;NewsletterTitle
          );
  </code></pre>
  
  <p>Note, that even though Return-Path is defined, I don't get bounce backs to that email address. Is there a solution to this problem?</p>