diff --git a/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/OnGenerationFails.php b/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/OnGenerationFails.php
index b9d538a63..c2c82126c 100644
--- a/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/OnGenerationFails.php
+++ b/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/OnGenerationFails.php
@@ -24,6 +24,7 @@ use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Messenger\Event\WorkerMessageFailedEvent;
 use Symfony\Contracts\Translation\TranslatorInterface;
+// use Symfony\Component\Translation\LocaleSwitcher;
 
 /**
  * @see OnGenerationFailsTest for test suite
@@ -40,6 +41,7 @@ final readonly class OnGenerationFails implements EventSubscriberInterface
         private StoredObjectRepositoryInterface $storedObjectRepository,
         private TranslatorInterface $translator,
         private UserRepositoryInterface $userRepository,
+        // private LocaleSwitcher $localeSwitcher,
     ) {}
 
     public static function getSubscribedEvents()
@@ -118,6 +120,25 @@ final readonly class OnGenerationFails implements EventSubscriberInterface
             return;
         }
 
+        // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+        /*
+        $this->localeSwitcher->runWithLocale($creator->getLocale(), function () use ($message, $errors, $template, $creator) {
+            $email = (new TemplatedEmail())
+                ->to($message->getSendResultToEmail())
+                ->subject($this->translator->trans('docgen.failure_email.The generation of a document failed'))
+                ->textTemplate('@ChillDocGenerator/Email/on_generation_failed_email.txt.twig')
+                ->context([
+                    'errors' => $errors,
+                    'template' => $template,
+                    'creator' => $creator,
+                    'stored_object_id' => $message->getDestinationStoredObjectId(),
+                ]);
+
+            $this->mailer->send($email);
+        });
+        */
+
+        // Current implementation:
         $email = (new TemplatedEmail())
             ->to($message->getSendResultToEmail())
             ->subject($this->translator->trans('docgen.failure_email.The generation of a document failed'))
diff --git a/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/RequestGenerationHandler.php b/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/RequestGenerationHandler.php
index 9dd20af91..cb5c612ed 100644
--- a/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/RequestGenerationHandler.php
+++ b/src/Bundle/ChillDocGeneratorBundle/Service/Messenger/RequestGenerationHandler.php
@@ -26,6 +26,7 @@ use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException;
 use Symfony\Component\Messenger\Handler\MessageHandlerInterface;
 use Symfony\Contracts\Translation\TranslatorInterface;
+// use Symfony\Component\Translation\LocaleSwitcher;
 
 /**
  * Handle the request of document generation.
@@ -46,6 +47,7 @@ class RequestGenerationHandler implements MessageHandlerInterface
         private readonly MailerInterface $mailer,
         private readonly TranslatorInterface $translator,
         private readonly StoredObjectManagerInterface $storedObjectManager,
+        // private readonly LocaleSwitcher $localeSwitcher,
     ) {}
 
     public function __invoke(RequestGenerationMessage $message)
@@ -122,6 +124,30 @@ class RequestGenerationHandler implements MessageHandlerInterface
 
     private function sendDataDump(StoredObject $destinationStoredObject, RequestGenerationMessage $message): void
     {
+        // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+        // Note: This method sends emails to admin addresses, not user addresses, so locale switching may not be needed
+        /*
+        $this->localeSwitcher->runWithLocale('fr', function () use ($destinationStoredObject, $message) {
+            // Get the content of the document
+            $content = $this->storedObjectManager->read($destinationStoredObject);
+            $filename = $destinationStoredObject->getFilename();
+            $contentType = $destinationStoredObject->getType();
+
+            // Create the email with the document as an attachment
+            $email = (new TemplatedEmail())
+                ->to($message->getSendResultToEmail())
+                ->textTemplate('@ChillDocGenerator/Email/send_data_dump_to_admin.txt.twig')
+                ->context([
+                    'filename' => $filename,
+                ])
+                ->subject($this->translator->trans('docgen.data_dump_email.subject'))
+                ->attach($content, $filename, $contentType);
+
+            $this->mailer->send($email);
+        });
+        */
+
+        // Current implementation:
         // Get the content of the document
         $content = $this->storedObjectManager->read($destinationStoredObject);
         $filename = $destinationStoredObject->getFilename();
diff --git a/src/Bundle/ChillMainBundle/Notification/Email/NotificationMailer.php b/src/Bundle/ChillMainBundle/Notification/Email/NotificationMailer.php
index 2f888ffd5..bdc2e06ef 100644
--- a/src/Bundle/ChillMainBundle/Notification/Email/NotificationMailer.php
+++ b/src/Bundle/ChillMainBundle/Notification/Email/NotificationMailer.php
@@ -23,6 +23,7 @@ use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Mime\Email;
 use Symfony\Component\Messenger\MessageBusInterface;
 use Symfony\Contracts\Translation\TranslatorInterface;
+// use Symfony\Component\Translation\LocaleSwitcher;
 
 readonly class NotificationMailer
 {
@@ -31,6 +32,7 @@ readonly class NotificationMailer
         private LoggerInterface $logger,
         private MessageBusInterface $messageBus,
         private TranslatorInterface $translator,
+        // private LocaleSwitcher $localeSwitcher,
     ) {}
 
     public function postPersistComment(NotificationComment $comment, PostPersistEventArgs $eventArgs): void
@@ -56,7 +58,7 @@ readonly class NotificationMailer
             $email
                 ->to($dest->getEmail())
                 ->subject('Re: '.$comment->getNotification()->getTitle())
-                ->textTemplate('@ChillMain/Notification/email_notification_comment_persist.fr.md.twig')
+                ->textTemplate('@ChillMain/Notification/email_notification_comment_persist.md.twig')
                 ->context([
                     'comment' => $comment,
                     'dest' => $dest,
@@ -137,13 +139,53 @@ readonly class NotificationMailer
             return;
         }
 
+        // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+        /*
+        $this->localeSwitcher->runWithLocale($addressee->getLocale(), function () use ($notification, $addressee) {
+            if ($notification->isSystem()) {
+                $email = new Email();
+                $email->text($notification->getMessage());
+            } else {
+                $email = new TemplatedEmail();
+                $email
+                    ->textTemplate('@ChillMain/Notification/email_non_system_notification_content.md.twig')
+                    ->context([
+                        'notification' => $notification,
+                        'dest' => $addressee,
+                    ]);
+            }
+
+            $email
+                ->subject($notification->getTitle())
+                ->to($addressee->getEmail());
+
+            try {
+                $this->mailer->send($email);
+                $this->logger->info('[NotificationMailer] Email sent successfully', [
+                    'notification_id' => $notification->getId(),
+                    'addressee_email' => $addressee->getEmail(),
+                    'locale' => $addressee->getLocale(),
+                ]);
+            } catch (TransportExceptionInterface $e) {
+                $this->logger->warning('[NotificationMailer] Could not send an email notification', [
+                    'to' => $addressee->getEmail(),
+                    'notification_id' => $notification->getId(),
+                    'error_message' => $e->getMessage(),
+                    'error_trace' => $e->getTraceAsString(),
+                ]);
+                throw $e;
+            }
+        });
+        */
+
+        // Current implementation:
         if ($notification->isSystem()) {
             $email = new Email();
             $email->text($notification->getMessage());
         } else {
             $email = new TemplatedEmail();
             $email
-                ->textTemplate('@ChillMain/Notification/email_non_system_notification_content.fr.md.twig')
+                ->textTemplate('@ChillMain/Notification/email_non_system_notification_content.md.twig')
                 ->context([
                     'notification' => $notification,
                     'dest' => $addressee,
@@ -182,9 +224,43 @@ readonly class NotificationMailer
             return;
         }
 
+        // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+        /*
+        $this->localeSwitcher->runWithLocale($user->getLocale(), function () use ($user, $notifications) {
+            $email = new TemplatedEmail();
+            $email
+                ->htmlTemplate('@ChillMain/Notification/email_daily_digest.md.twig')
+                ->context([
+                    'user' => $user,
+                    'notifications' => $notifications,
+                    'notification_count' => count($notifications),
+                ])
+                ->subject($this->translator->trans('notification.Daily Notification Digest'))
+                ->to($user->getEmail());
+
+            try {
+                $this->mailer->send($email);
+                $this->logger->info('[NotificationMailer] Daily digest email sent successfully', [
+                    'user_email' => $user->getEmail(),
+                    'notification_count' => count($notifications),
+                    'locale' => $user->getLocale(),
+                ]);
+            } catch (TransportExceptionInterface $e) {
+                $this->logger->warning('[NotificationMailer] Could not send daily digest email', [
+                    'to' => $user->getEmail(),
+                    'notification_count' => count($notifications),
+                    'error_message' => $e->getMessage(),
+                    'error_trace' => $e->getTraceAsString(),
+                ]);
+                throw $e;
+            }
+        });
+        */
+
+        // Current implementation:
         $email = new TemplatedEmail();
         $email
-            ->htmlTemplate('@ChillMain/Notification/email_daily_digest.fr.md.twig')
+            ->htmlTemplate('@ChillMain/Notification/email_daily_digest.md.twig')
             ->context([
                 'user' => $user,
                 'notifications' => $notifications,
@@ -222,7 +298,7 @@ readonly class NotificationMailer
 
             $email = new TemplatedEmail();
             $email
-                ->textTemplate('@ChillMain/Notification/email_non_system_notification_content_to_email.fr.md.twig')
+                ->textTemplate('@ChillMain/Notification/email_non_system_notification_content_to_email.md.twig')
                 ->context([
                     'notification' => $notification,
                     'dest' => $emailAddress,
diff --git a/src/Bundle/ChillMainBundle/Security/PasswordRecover/RecoverPasswordHelper.php b/src/Bundle/ChillMainBundle/Security/PasswordRecover/RecoverPasswordHelper.php
index b325a9345..74b8b4aab 100644
--- a/src/Bundle/ChillMainBundle/Security/PasswordRecover/RecoverPasswordHelper.php
+++ b/src/Bundle/ChillMainBundle/Security/PasswordRecover/RecoverPasswordHelper.php
@@ -15,12 +15,13 @@ use Chill\MainBundle\Entity\User;
 use Symfony\Bridge\Twig\Mime\TemplatedEmail;
 use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+// use Symfony\Component\Translation\LocaleSwitcher;
 
 class RecoverPasswordHelper
 {
     final public const RECOVER_PASSWORD_ROUTE = 'password_recover';
 
-    public function __construct(private readonly TokenManager $tokenManager, private readonly UrlGeneratorInterface $urlGenerator, private readonly MailerInterface $mailer) {}
+    public function __construct(private readonly TokenManager $tokenManager, private readonly UrlGeneratorInterface $urlGenerator, private readonly MailerInterface $mailer/*, private readonly LocaleSwitcher $localeSwitcher*/) {}
 
     /**
      * @param bool  $absolute
@@ -53,6 +54,24 @@ class RecoverPasswordHelper
             throw new \UnexpectedValueException('No emaail associated to the user');
         }
 
+        // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+        /*
+        $this->localeSwitcher->runWithLocale($user->getLocale(), function () use ($user, $expiration, $template, $templateParameters, $emailSubject, $additionalUrlParameters) {
+            $email = (new TemplatedEmail())
+                ->subject($emailSubject)
+                ->to($user->getEmail())
+                ->textTemplate($template)
+                ->context([
+                    'user' => $user,
+                    'url' => $this->generateUrl($user, $expiration, true, $additionalUrlParameters),
+                    ...$templateParameters,
+                ]);
+
+            $this->mailer->send($email);
+        });
+        */
+
+        // Current implementation:
         $email = (new TemplatedEmail())
             ->subject($emailSubject)
             ->to($user->getEmail())
diff --git a/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationToUserGroupsOnTransition.php b/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationToUserGroupsOnTransition.php
index 1eebb03a6..766931c2f 100644
--- a/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationToUserGroupsOnTransition.php
+++ b/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationToUserGroupsOnTransition.php
@@ -21,6 +21,7 @@ use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Workflow\Event\Event;
 use Symfony\Component\Workflow\Registry;
+// use Symfony\Component\Translation\LocaleSwitcher;
 
 final readonly class NotificationToUserGroupsOnTransition implements EventSubscriberInterface
 {
@@ -31,6 +32,7 @@ final readonly class NotificationToUserGroupsOnTransition implements EventSubscr
         private MailerInterface $mailer,
         private EntityManagerInterface $entityManager,
         private EntityWorkflowManager $entityWorkflowManager,
+        // private LocaleSwitcher $localeSwitcher,
     ) {}
 
     public static function getSubscribedEvents(): array
@@ -87,6 +89,24 @@ final readonly class NotificationToUserGroupsOnTransition implements EventSubscr
                 'title' => $title,
             ];
 
+            // Implementation with LocaleSwitcher (commented out - to be activated after migration to sf7.2):
+            // Note: This sends emails to user groups, not individual users, so locale switching may use default locale
+            /*
+            $this->localeSwitcher->runWithLocale('fr', function () use ($context, $userGroup) {
+                $email = new TemplatedEmail();
+                $email
+                    ->htmlTemplate('@ChillMain/Workflow/workflow_notification_on_transition_completed_content_to_user_group.fr.txt.twig')
+                    ->context($context)
+                    ->subject(
+                        $this->engine->render('@ChillMain/Workflow/workflow_notification_on_transition_completed_title.fr.txt.twig', $context)
+                    )
+                    ->to($userGroup->getEmail());
+
+                $this->mailer->send($email);
+            });
+            */
+
+            // Current implementation:
             $email = new TemplatedEmail();
             $email
                 ->htmlTemplate('@ChillMain/Workflow/workflow_notification_on_transition_completed_content_to_user_group.fr.txt.twig')