Fatal error: Uncaught exception 'ErrorException' with message 'stream_socket_client(): unable to connect to localhost:25 (Connection refused)' in /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Transport/StreamBuffer.php:257 Stack trace: #0 [internal function]: ExceptionManager::errorHandler(2, 'stream_socket_c...', '/home/releases/...', 257, Array) #1 /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Transport/StreamBuffer.php(257): stream_socket_client('localhost:25', 111, 'Connection refu...', 30, 4, Resource id #17) #2 /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Transport/StreamBuffer.php(64): Swift_Transport_StreamBuffer->_establishSocketConnection() #3 /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Transport/AbstractSmtpTransport.php(115): Swift_Transport_StreamBuffer->initialize(Array) #4 /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Mailer.php(80): Swift_Transport_AbstractSmtpTransport->start() #5 /home/releases/20190218-144142/sys/libs/email_v2.php( in /home/releases/20190218-144142/sys/libs/swift/classes/Swift/Transport/StreamBuffer.php on line 257