电子邮件未在localhost中以cakephp 3.x格式发送

这里我尝试从localhost发送电子邮件。我已经在php.ini和sendmail.ini文件中配置了smtp服务器设置。我的代码更改如下

app.php

  'EmailTransport' => [
        'default' => [
            'className' => 'Smtp',
            // The following keys are used in SMTP transports
            'host' => 'ssl://smtp.gmail.com',
            'port' => 465,
            'timeout' => 30,
            'username' => '******',
            'password' => '********',
           // 'client' => null,
           // 'tls' => null,
        ],
    ],
'Email' => [
        'default' => [
            'transport' => 'default',
            'from' => '**********',
        //'charset' => 'utf-8',
        //'headerCharset' => 'utf-8',
        ],
    ],

控制器代码

$email = new Email('default');
    try {
        $res = $email->from('*****@**.**')
              ->to(['*****@**.**' => 'My Website'])
              ->subject('Tsting')                   
              ->send("hiii this is for testing ");

    } catch (Exception $e) {

        echo 'Exception : ',  $e->getMessage(), "\n";

    }

---

我做了一些调查，他们说邮件也会从本地主机发送。。有人能帮我一下吗？运行此代码时会出现什么错误/异常？在哪里定义了

localhost

？在localhost上运行代码对我很有效。您是否将电子邮件类包含在控制器的顶部？使用Cake\Network\Email\Email；