//FIXME: should change all header() calls in SM core to use $oTemplate->header()!!
$oTemplate->header('Pragma: no-cache'); // http 1.0 (rfc1945)
$oTemplate->header('Cache-Control: private, no-cache, no-store'); // http 1.1 (rfc2616)
+ /* prevent information leakage about read emails by forbidding Firefox
+ * to do preemptive DNS requests for any links in the message body. */
+ $oTemplate->header('X-DNS-Prefetch-Control: off');
// don't show version as a security measure
//$oTemplate->header('X-Powered-By: SquirrelMail/' . SM_VERSION, FALSE);