diff --git a/etemplate/inc/class.etemplate_widget_url.inc.php b/etemplate/inc/class.etemplate_widget_url.inc.php
index 5308f7fd55..d130847495 100644
--- a/etemplate/inc/class.etemplate_widget_url.inc.php
+++ b/etemplate/inc/class.etemplate_widget_url.inc.php
@@ -21,7 +21,7 @@ class etemplate_widget_url extends etemplate_widget
 	/**
 	 * Regexes for validating
 	 */
-	const EMAIL_PREG = '^(?:[ a-z0-9!#$%&\'*+\/=?^_`{|}\(\)~-]+<)?[^\x00-\x20()<>@,;:\"\[\]]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,6}';
+	const EMAIL_PREG = '^(?:[ a-z0-9.!#$%&\'*+\/=?^_`{|}\(\)~-]+<)?[^\x00-\x20()<>@,;:\"\[\]]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,6}';
 
 	/**
 	 * Validate input
diff --git a/etemplate/js/et2_widget_url.js b/etemplate/js/et2_widget_url.js
index 998b34b97b..a9a2c7aad5 100644
--- a/etemplate/js/et2_widget_url.js
+++ b/etemplate/js/et2_widget_url.js
@@ -33,7 +33,7 @@ var et2_url = et2_textbox.extend(
 
 	// PREG for client-side validation copied from etemplate_widget_url
 	// using \042 instead of " to NOT stall minifyer!
-	EMAIL_PREG: new RegExp(/^(?:[ a-z0-9!#$%&'*+/=?^_`{|}\(\)~-]+<)?[^\x00-\x20()<>@,;:\042\[\]]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,6}/i),
+	EMAIL_PREG: new RegExp(/^(?:[ a-z0-9.!#$%&'*+/=?^_`{|}\(\)~-]+<)?[^\x00-\x20()<>@,;:\042\[\]]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,6}/i),
 	/**
 	 * @memberOf et2_url
 	 */