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-rw-r--r--program/include/rcube_string_replacer.php3
1 files changed, 2 insertions, 1 deletions
diff --git a/program/include/rcube_string_replacer.php b/program/include/rcube_string_replacer.php
index 28e1300c7..3c09326b2 100644
--- a/program/include/rcube_string_replacer.php
+++ b/program/include/rcube_string_replacer.php
@@ -36,7 +36,8 @@ class rcube_string_replacer
function __construct()
{
// Simplified domain expression for UTF8 characters handling
- $utf_domain = '[^?&@"\'\\/()\s\r\t\n]+\\.[a-z]{2,5}';
+ // Support unicode/punycode in top-level domain part
+ $utf_domain = '[^?&@"\'\\/()\s\r\t\n]+\\.([^\\x00-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-z0-9]{2,})';
$url1 = '.:;';
$url2 = 'a-z0-9%=#@+?&\\/_~\\[\\]-';