Swift_TransportException in StreamBuffer.php line 269:

Connection could not be established with host smtp.gmail.com
[A connection attempt failed because the connected party did not properly respond
after a period of time, or established connection failed because connected host has  failed to respond.
#10060]

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=465
MAIL_USERNAME=EMAIL
MAIL_PASSWORD=PASS
MAIL_ENCRYPTION=tls