PHP mail() not being delivered to gmail

I have a form on a page.  when you fill out the form and confirmation email is sent to your email address.  If you have a Gmail account or if your email is routed by Gmail the mail won't arrive.  Not even in the spam folder.  Other email addresses work fine.  Has anyone ever run into this?

  $subject = 'Email Subject';

                $headers = 'MIME-Version: 1.0' . "\r\n";
                $headers .= 'Content-Type: text/html; charset=ISO-8859-1' . "\r\n";
                $headers .= 'From: rgranlund@MYSITE.com' . "\r\n";
                $headers .= 'Bcc: info@MYSITE' . "\r\n";

                mail($e, $subject, $body, $headers);