Hotmail spam

      $header = "From: $realname <$from>\r\n";
	  $header .= "Reply-To: $replyto\r\n"; 
      $header .= "MIME-Version: 1.0\r\n"; 
      If ($file_name) $header .= "Content-Type: multipart/mixed; boundary=$uid\r\n"; 
      If ($file_name) $header .= "--$uid\r\n"; 
      $header .= "Content-Type: text/$contenttype\r\n"; 
      $header .= "Content-Transfer-Encoding: 8bit\r\n\r\n"; 
      $header .= "$message\r\n"; 
      If ($file_name) $header .= "--$uid\r\n"; 
      If ($file_name) $header .= "Content-Type: $file_type; name=\"$file_name\"\r\n"; 
      If ($file_name) $header .= "Content-Transfer-Encoding: base64\r\n"; 
      If ($file_name) $header .= "Content-Disposition: attachment; filename=\"$file_name\"\r\n\r\n"; 
      If ($file_name) $header .= "$content\r\n"; 
      If ($file_name) $header .= "--$uid--"; 
      mail($to, $subject, "", $header);