Why are yii2 messages not being sent?

Question

Yii

Here is the code in the model:

$user->generateSecretKey();
            if($user->save())
            {
                return Yii::$app->mailer->compose('resetPassword', ['user' => $user])
                    ->setFrom([Yii::$app->params['supportEmail'] => Yii::$app->name . ' (отправлено роботом)'])
                    ->setTo($this->email)
                    ->setSubject('Сброс пароля для ' . Yii::$app->name)
                    ->send();
            }

Config:

'mailer' => [
            'class' => 'yii\swiftmailer\Mailer',
            // send all mails to a file by default. You have to set
            // 'useFileTransport' to false and configure a transport
            // for the mailer to send real emails.
            'useFileTransport' => false,
        ],

Tried changing 'useFileTransport' to true, but didn't help. In the logs, the message, that is, does not come to the mail.
A quick note: swiftMailer is underlined in red for some reason...

Answer 1

It seems to me that this is a server problem, the message was sent by the framework, look for the problem in the next link. PS Have you looked at spam?