diff --git a/lib/Alchemy/Phrasea/Controller/Prod/Push.php b/lib/Alchemy/Phrasea/Controller/Prod/Push.php
index c77c0ae5ea..d485e2be4a 100644
--- a/lib/Alchemy/Phrasea/Controller/Prod/Push.php
+++ b/lib/Alchemy/Phrasea/Controller/Prod/Push.php
@@ -433,15 +433,16 @@ class Push implements ControllerProviderInterface
                     $receipt = $request->get('recept') ? $app['authentication']->getUser()->get_email() : '';
 
                     $params = array(
-                        'from'       => $app['authentication']->getUser()->get_id()
-                        , 'from_email' => $app['authentication']->getUser()->get_email()
-                        , 'to'         => $participant_user->get_id()
-                        , 'to_email'   => $participant_user->get_email()
-                        , 'to_name'    => $participant_user->get_display_name()
-                        , 'url'        => $url
-                        , 'accuse'     => $receipt
-                        , 'message'    => $request->request->get('message')
-                        , 'ssel_id'    => $Basket->getId()
+                        'from'       => $app['authentication']->getUser()->get_id(),
+                        'from_email' => $app['authentication']->getUser()->get_email(),
+                        'to'         => $participant_user->get_id(),
+                        'to_email'   => $participant_user->get_email(),
+                        'to_name'    => $participant_user->get_display_name(),
+                        'url'        => $url,
+                        'accuse'     => $receipt,
+                        'message'    => $request->request->get('message'),
+                        'ssel_id'    => $Basket->getId(),
+                        'duration'   => (int) $request->request->get('duration'),
                     );
 
                     $app['events-manager']->trigger('__PUSH_VALIDATION__', $params);
diff --git a/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationReminder.php b/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationReminder.php
index b2c8f1a05d..52a6a7f0ee 100644
--- a/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationReminder.php
+++ b/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationReminder.php
@@ -56,7 +56,7 @@ class MailInfoValidationReminder extends AbstractMailWithLink
      */
     public function getButtonText()
     {
-        return _('Validate');
+        return _('Start validation');
     }
 
     /**
diff --git a/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationRequest.php b/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationRequest.php
index a475d4e3da..3bed35b906 100644
--- a/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationRequest.php
+++ b/lib/Alchemy/Phrasea/Notification/Mail/MailInfoValidationRequest.php
@@ -19,6 +19,8 @@ class MailInfoValidationRequest extends AbstractMailWithLink
     private $title;
     /** @var \User_Adapter */
     private $user;
+    /** @var integer */
+    private $duration;
 
     /**
      * Sets the title of the validation
@@ -40,6 +42,11 @@ class MailInfoValidationRequest extends AbstractMailWithLink
         $this->user = $user;
     }
 
+    public function setDuration($duration)
+    {
+        $this->duration = (int) $duration;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -60,6 +67,14 @@ class MailInfoValidationRequest extends AbstractMailWithLink
      */
     public function getMessage()
     {
+        if (0 < $this->duration) {
+            if (1 < $this->duration) {
+                return $this->message . "\n\n" . "You have 1 day to validate the selection.";
+            } else {
+                return $this->message . "\n\n" . sprintf(_("You have %d days to validate the selection.", $this->duration));
+            }
+        }
+
         return $this->message;
     }
 
@@ -68,7 +83,7 @@ class MailInfoValidationRequest extends AbstractMailWithLink
      */
     public function getButtonText()
     {
-        return _('Validate');
+        return _('Start validation');
     }
 
     /**
diff --git a/lib/classes/eventsmanager/notify/validate.php b/lib/classes/eventsmanager/notify/validate.php
index c209d2003d..a19a226a29 100644
--- a/lib/classes/eventsmanager/notify/validate.php
+++ b/lib/classes/eventsmanager/notify/validate.php
@@ -112,6 +112,7 @@ class eventsmanager_notify_validate extends eventsmanager_notifyAbstract
             if ($readyToSend) {
                 $mail = MailInfoValidationRequest::create($this->app, $receiver, $emitter, $params['message']);
                 $mail->setButtonUrl($params['url']);
+                $mail->setDuration($params['duration']);
                 $mail->setTitle($title);
                 $mail->setUser($user_from);