Mail Gelmiyor Kayıt Olunmuyor

#0 [internal function]: Swift_Transport_StreamBuffer->{closure}(2, 'stream_socket_c...', '/home/********/...', 264, Array)
#1 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php(264): stream_socket_client('support@***nb...', 0, 'php_network_get...', 30, 4, Resource id #257)
#2 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php(58): Swift_Transport_StreamBuffer->establishSocketConnection()
#3...