Send mail with cakephp using gmail.

cake_email.php

public $gmail = array(
  'host' => 'ssl://smtp.gmail.com',
  'port' => 465,
  'username' => 'votreidentifiant@gmail.com',
  'password' => 'motdepasse',
  'transport' => 'Smtp',
  'timeout' => 30
);

$email = new CakeEmail('gmail');
$email->from('votreidentifiant@gmail.com')
->to('contact@grafikart.fr')
->subject('Merci !')
->send("Hello Grafikart");

For CakePHP 3 something like the following would work,

'EmailTransport' => [
        'default' => [
            'className' => 'Smtp',
            // The following keys are used in SMTP transports
            'host' => 'ssl://smtp.gmail.com',
            'port' => 465,
            'timeout' => 30,
            'username' => 'username@domain.com',
            'password' => 'your_password',
        ],
    ],

Needless to say this would go in config\app.php

i have not smtp credential, is it mendetory (www.examsdetails.com) smtp credentials in cakephp version 3