diff --git a/include/config.inc.example b/include/config.inc.example
index f98304544..6bb95ab48 100644
--- a/include/config.inc.example
+++ b/include/config.inc.example
@@ -33,7 +33,8 @@ define ("DEBUGNOALYSS",0);
 // Uncomment if you want to activate the possibility to reinitialize
 // password by email
 // defined("RECOVER","1");
-// Uncomment and define if you want to Name of the sender of the email 
+
+// // Uncomment and define if you want to Name of the sender of the email 
 // if you activate the possibility to reinitialize password by email
 // define('ADMIN_WEB', 'www-data@localhost');
 
diff --git a/include/constant.php b/include/constant.php
index 8e284d192..ac04af67c 100644
--- a/include/constant.php
+++ b/include/constant.php
@@ -65,6 +65,11 @@ if (!defined('NOALYSS_ADMINISTRATOR')) {
 if (!defined("SESSION_KEY")) {
     define("SESSION_KEY", "RtYu0uu");
 }
+
+if ( !defined ('ADMIN_WEB')) {
+    $a=gethostname();
+    define('ADMIN_WEB',"noalyss-no-reply@$a");
+}
 require_once NOALYSS_INCLUDE . '/constant.security.php';
 
 if (strpos($inc_path, ";") != 0) {