diff --git a/src/Model/Transactions/TransactionCreation.php b/src/Model/Transactions/TransactionCreation.php
index 2864a4266..a2d6e2a08 100644
--- a/src/Model/Transactions/TransactionCreation.php
+++ b/src/Model/Transactions/TransactionCreation.php
@@ -172,6 +172,11 @@ class TransactionCreation extends TransactionBase {
           $emailViewBuilder = $email->viewBuilder();
           $emailViewBuilder->setTemplate('notificationCreation')
                            ->setVars(['user' => $receiverUser, 'gdd_cent' => $this->getAmount(), 'memo' => $memo]);
+          $receiverNames = $receiverUser->getNames();
+          if($receiverNames == '' || $receiverUser->email == '') {
+            $this->addError('TransactionCreation::sendNotificationEmail', 'to email is empty for user: ' . $receiverUser->id);
+            return false;
+          }
           $email->setFrom([$noReplyEmail => 'Nicht antworten'])
                 ->setTo([$receiverUser->email => $receiverUser->getNames()])
                 ->setSubject(__('Gradido Schöpfung erhalten'))
diff --git a/src/Model/Transactions/TransactionTransfer.php b/src/Model/Transactions/TransactionTransfer.php
index a82173a28..c89a0f175 100644
--- a/src/Model/Transactions/TransactionTransfer.php
+++ b/src/Model/Transactions/TransactionTransfer.php
@@ -232,7 +232,11 @@ class TransactionTransfer extends TransactionBase {
                                     'senderUser' => $senderUser,
                                     'gdd_cent' => $receiverAmount->getAmount(), 
                                     'memo' => $memo]);
-
+        $receiverNames = $receiverUser->getNames();
+        if($receiverNames == '' || $receiverUser->email == '') {
+            $this->addError('TransactionCreation::sendNotificationEmail', 'to email is empty for user: ' . $receiverUser->id);
+            return false;
+          }
         $email->setFrom([$serverAdminEmail => $senderUser->getNames() . ' via Gradido Community'])
               ->setTo([$receiverUser->email => $receiverUser->getNames()])
               ->setReplyTo($senderUser->email)