电子邮件标题格式（PHP）

Can anyone tell me where I've gone wrong on this? I'm adding an attachment to an email from a blob in the database. I'm assuming the headers on this are incorrectly formatted but have spent all day on this and still cant get it to work!

$semi_rand = md5(time()); 
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 
$headers2 = array(
'From: ' . $fromName . ' < ' . $fromEmail . ' > ', 
'BCC: will.evans.1972@gmail.com',
'MIME-Version: 1.0',
'Content-Type: multipart/mixed;',
'boundary='.$mime_boundary, 
);
// multipart boundary 
$body = '--'.$mime_boundary.'
' ;
$body .= 'Content-Type: text/html; charset=\"iso-8859-1\"
';
$body .= $message ; 
$body .= '--'.$mime_boundary.'
';

// preparing attachments
  global $wpdb;
  $data = $wpdb->get_var("SELECT documentblob FROM quote");
    $data = chunk_split(base64_encode($data));

    $fname1='quotation.pdf';

$body .= 'Content-Type: {"application/octet-stream"};
';
$body .= 'name="'.$fname1.'"
'. 
$body .= 'Content-Disposition: attachment;
';
$body .= 'filename="'.$fname1.'"
';
$body .= 'Content-Transfer-Encoding: base64

'; 
$body .= $data . '

';
$body .= '--'.$mime_boundary.'
';

wp_mail($to, $subject, $body, $headers2);

You should close the last boundary with two more hypes, so your last body line should be the following:

$body .= '--'.$mime_boundary.'--
';