Ticket #4616: 4616.diff

wp-includes/formatting.php

@@ -666 +666 @@
 
 
 function is_email($user_email) {
-        $chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
+        $chars = "/^[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z]{2,6}$/i";
         if (strpos($user_email, '@') !== false && strpos($user_email, '.') !== false) {
                 if (preg_match($chars, $user_email)) {
                         return true;