[2024-05-14T03:10:52.352245+00:00] main.ERROR: Laminas\Mail\Transport\Exception\RuntimeException: Unable to send mail: Unknown error in /var/www/html/vendor/laminas/laminas-mail/src/Transport/Sendmail.php:313
Stack trace:
#0 /var/www/html/vendor/laminas/laminas-mail/src/Transport/Sendmail.php(150): Laminas\Mail\Transport\Sendmail->mailHandler()
#1 /var/www/html/vendor/magento/module-email/Model/Transport.php(183): Laminas\Mail\Transport\Sendmail->send()
#2 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Email\Model\Transport->sendMessage()
#3 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Email\Model\Transport\Interceptor->___callParent()
#4 /var/www/html/vendor/mageplaza/module-smtp/Mail/Transport.php(146): Magento\Email\Model\Transport\Interceptor->Magento\Framework\Interception\{closure}()
#5 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(135): Mageplaza\Smtp\Mail\Transport->aroundSendMessage()
#6 /var/www/html/vendor/magento/module-email/Model/Mail/TransportInterfacePlugin.php(48): Magento\Email\Model\Transport\Interceptor->Magento\Framework\Interception\{closure}()
#7 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(135): Magento\Email\Model\Mail\TransportInterfacePlugin->aroundSendMessage()
#8 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Email\Model\Transport\Interceptor->Magento\Framework\Interception\{closure}()
#9 /var/www/html/generated/code/Magento/Email/Model/Transport/Interceptor.php(23): Magento\Email\Model\Transport\Interceptor->___callPlugins()
#10 /var/www/html/vendor/magento/module-user/Model/Notificator.php(98): Magento\Email\Model\Transport\Interceptor->sendMessage()
#11 /var/www/html/vendor/magento/module-user/Model/Notificator.php(154): Magento\User\Model\Notificator->sendNotification()
#12 /var/www/html/vendor/magento/module-user/Model/User.php(503): Magento\User\Model\Notificator->sendCreated()
#13 /var/www/html/vendor/magento/module-user/Controller/Adminhtml/User/Save.php(102): Magento\User\Model\User->sendNotificationEmailsIfRequired()
#14 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\User\Controller\Adminhtml\User\Save->execute()
#15 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\User\Controller\Adminhtml\User\Save\Interceptor->___callParent()
#16 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\User\Controller\Adminhtml\User\Save\Interceptor->Magento\Framework\Interception\{closure}()
#17 /var/www/html/generated/code/Magento/User/Controller/Adminhtml/User/Save/Interceptor.php(23): Magento\User\Controller\Adminhtml\User\Save\Interceptor->___callPlugins()
#18 /var/www/html/vendor/magento/framework/App/Action/Action.php(111): Magento\User\Controller\Adminhtml\User\Save\Interceptor->execute()
#19 /var/www/html/vendor/magento/module-backend/App/AbstractAction.php(151): Magento\Framework\App\Action\Action->dispatch()
#20 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Backend\App\AbstractAction->dispatch()
#21 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\User\Controller\Adminhtml\User\Save\Interceptor->___callParent()
#22 /var/www/html/vendor/magento/module-backend/App/Action/Plugin/Authentication.php(145): Magento\User\Controller\Adminhtml\User\Save\Interceptor->Magento\Framework\Interception\{closure}()
#23 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(135): Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch()
#24 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\User\Controller\Adminhtml\User\Save\Interceptor->Magento\Framework\Interception\{closure}()
#25 /var/www/html/generated/code/Magento/User/Controller/Adminhtml/User/Save/Interceptor.php(32): Magento\User\Controller\Adminhtml\User\Save\Interceptor->___callPlugins()
#26 /var/www/html/vendor/magento/framework/App/FrontController.php(245): Magento\User\Controller\Adminhtml\User\Save\Interceptor->dispatch()
#27 /var/www/html/vendor/magento/framework/App/FrontController.php(212): Magento\Framework\App\FrontController->getActionResponse()
#28 /var/www/html/vendor/magento/framework/App/FrontController.php(147): Magento\Framework\App\FrontController->processRequest()
#29 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\FrontController->dispatch()
#30 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\App\FrontController\Interceptor->___callParent()
#31 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}()
#32 /var/www/html/generated/code/Magento/Framework/App/FrontController/Interceptor.php(23): Magento\Framework\App\FrontController\Interceptor->___callPlugins()
#33 /var/www/html/vendor/magento/framework/App/Http.php(116): Magento\Framework\App\FrontController\Interceptor->dispatch()
#34 /var/www/html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http->launch()
#35 /var/www/html/pub/index.php(30): Magento\Framework\App\Bootstrap->run()
#36 {main} {"exception":"[object] (Laminas\\Mail\\Transport\\Exception\\RuntimeException(code: 0): Unable to send mail: Unknown error at /var/www/html/vendor/laminas/laminas-mail/src/Transport/Sendmail.php:313)"} []