Wrong email sender fix #18730

Wrong email sender in app sharebymail when sending password to owner fix #18730

Author: exner104

apps/sharebymail/lib/ShareByMailProvider.php

@@ -620,9 +620,7 @@ protected function sendPasswordToOwner(IShare $share, $password) {
 		$emailTemplate->addBodyText($this->l->t('You can choose a different password at any time in the share dialog.'));
 		$emailTemplate->addFooter();
 
-		if ($initiatorEMailAddress) {
-			$message->setFrom([$initiatorEMailAddress => $initiatorDisplayName]);
-		}
+		$message->setFrom([\OCP\Util::getDefaultEmailAddress($instanceName) => $senderName]);
 		$message->setTo([$initiatorEMailAddress => $initiatorDisplayName]);
 		$message->useTemplate($emailTemplate);
 		$this->mailer->send($message);