public function log() { $mailLog = null; /** @var \Zend\Mail\Transport\Smtp $mailTransport */ $mailTransport = $this->sxMail->getTransport(); if ($mailTransport instanceof \Zend\Mail\Transport\Smtp || is_callable([$mailTransport, 'getConnection'])) { $mailLog = $mailTransport->getConnection()->getLog(); } if ($mailLog) { $this->logger->debug($mailLog); } }