diff --git a/src/Validator/MailValidator.php b/src/Validator/MailValidator.php
index afdc663..5d24c02 100644
--- a/src/Validator/MailValidator.php
+++ b/src/Validator/MailValidator.php
@@ -33,7 +33,7 @@ public function validate(EntityInterface $mail)
 
         $this->validateSubject($mail->getSubject());
         $this->validateSender($mail->getSender());
-        $this->validateAddress($mail->getRecipients(), 'recipients');
+        $this->validateAddress($mail->getRecipients(), 'recipients', false);
         $this->validateAddress($mail->getCc(), 'cc', false);
         $this->validateAddress($mail->getBcc(), 'bcc', false);
         $this->validateAddress($mail->getDispositionNotificationTo(), 'dispositionNotificationTo', false);