diff --git a/lib/behat/classes/util.php b/lib/behat/classes/util.php
index b2118655ed0..09cf9ccd8b9 100644
--- a/lib/behat/classes/util.php
+++ b/lib/behat/classes/util.php
@@ -117,6 +117,9 @@ class behat_util extends testing_util {
         // Set editor autosave to high value, so as to avoid unwanted ajax.
         set_config('autosavefrequency', '604800', 'editor_atto');
 
+        // Set noreplyaddress to an example domain, as it should be valid email address and test site can be a localhost.
+        set_config('noreplyaddress', 'noreply@example.com');
+
         // Keeps the current version of database and dataroot.
         self::store_versions_hash();