minor fix

src/Service/Mailer/Mailer.php

@@ -160,7 +160,7 @@ class Mailer
             ->from($addressMailFrom)
             ->subject($email->getEmailEntity()->getAbout());
 
-        if (!$email->getEmailEntity()->getIsSystem()) {
+        if (!$isSystem) {
             $symfonyEmail
                 ->replyTo($addressMailFrom)
                 ->returnPath(Address::create($this->opentalentMailReportEmailAddress));