[php] Swift_TransportException Connection could not be established with host smtp.gmail.com

If you have hosted your website already it advisable to use the email or create an offical mail to send the email Let say your url is www.example.com. Then go to the cpanel create an email which will be [email protected]. Then request for the setting of the email. Change the email address to [email protected]. Then change your smtp which will be mail.example.com. The ssl will remain 465