diff --git a/lib/private/Mail/Mailer.php b/lib/private/Mail/Mailer.php
index 7af3d16f75cbf..df5f2687daa6b 100644
--- a/lib/private/Mail/Mailer.php
+++ b/lib/private/Mail/Mailer.php
@@ -169,7 +169,7 @@ public function send(IMessage $message): array {
 		$debugMode = $this->config->getSystemValue('mail_smtpdebug', false);
 
 		if (empty($message->getFrom())) {
-			$message->setFrom([\OCP\Util::getDefaultEmailAddress($this->defaults->getName()) => $this->defaults->getName()]);
+			$message->setFrom([\OCP\Util::getDefaultEmailAddress('no-reply') => $this->defaults->getName()]);
 		}
 
 		$failedRecipients = [];