I'm using SMTP Gmail and this is error can you show me how to config that smtp setting ?
`POST https://matilda.vn/team/public/api/mail/test
Swift_TransportException: Connection could not be established with host smtp.gmail.com :stream_socket_client(): Unable to connect to smtp.gmail.com:465 (Connection refused) in /home/matilda.vn/httpdocs/team/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:261
Stack trace:
#0 [internal function]: Swift_Transport_StreamBuffer->{closure}()
#1 `