Sending email using smtp doesn't work

The following code doesn't work (no email is received) 

PHP Code:

<?php namespace App\Controllers;

class Email extends BaseController
{
    public function index()
    {
        $config['protocol'] = 'smtp';
        $config['charset']  = 'iso-8859-1';
        $config['wordWrap'] = true;
        $config['SMTPHost'] = 'ssl://smtp.gmail.com';
        $config['SMTPUser'] = '[email protected]';
        $config['SMTPPass'] = 'xxx';
        $config['SMTPCrypto'] = 'ssl'; // tls or ssl
        $config['SMTPPort'] = 465; // tls:587  ssl:465
        $config['mailType'] = 'html';

        $email = \Config\Services::email();
        $email->initialize($config); // Use the config above

        $email->setFrom('[email protected]', 'xxx');
        $email->setTo('[email protected]');
        $email->setSubject('Email Test');
        $email->setMessage('Testing the email class.');
        $email->send();
    }
} 


I have also tried sendgrid without success:

PHP Code:

$config['protocol']         = 'smtp';
        $config['smtpHost']        = 'smtp.sendgrid.net';
        $config['smtpPort']        = 587;
        $config['smtpUser']        = 'apikey';
        $config['smtpPass']        = 'my_key';
        $config['charset']          = 'utf-8';
        $config['mailType']         = 'html';
        $config['SMTPCrypto'] = 'tls'; // tls or ssl

       

        $email = \Config\Services::email();
        $email->initialize($config); // Use the config above

        $email->setFrom('[email protected]', 'xxx');
        $email->setTo('[email protected]');
        $email->setSubject('Email Test');
        $email->setMessage('Testing the email class.');
        $email->send(); 


Works fine with:

public $fromEmail = '[email protected]';
public $protocol = 'smtp';
public $SMTPHost = 'smtp.gmail.com';
public $SMTPUser = '[email protected]';
public $SMTPPass = '********';
public $SMTPPort = 587;
public $SMTPCrypto = 'tls';

Works fine with:

public $fromEmail = '[email protected]';
public $protocol = 'smtp';
public $SMTPHost = 'smtp.gmail.com';
public $SMTPUser = '[email protected]';
public $SMTPPass = '********';
public $SMTPPort = 587;
public $SMTPCrypto = 'tls';

Thanks, that works. Is was wrong in the setting of port/crypto and host. I will now start to test using Sendgrid or another email service.