$cookiejar = tempnam(get_temppath(), 'cookiejar-mailstream-');
$curlResult = Network::fetchUrlFull($url, true, 0, '', $cookiejar);
$attachments[$url] = [
$cookiejar = tempnam(get_temppath(), 'cookiejar-mailstream-');
$curlResult = Network::fetchUrlFull($url, true, 0, '', $cookiejar);
$attachments[$url] = [