add ownermail as "setfrom". Without this the email method ends always in status "phpmailer"and not "smtp"

Application/Controller/Admin/MailConfigCheck.php

@@ -73,9 +73,12 @@ class MailConfigCheck extends AdminDetailsController
     protected function getCurrentMailer()
     {
         try {
+			$shop = Registry::getConfig()->getActiveShop();
+			
             $mail = oxNew(Email::class);
             $mail->setRecipient($this->testMailAddress);
             $mail->setBody('.');
+			$mail->setFrom($shop->getFieldData('oxowneremail'));
             $mail->send();
             $this->addTplParam('mailer', $mail->getMailer());
         } catch (Exception $e) {