[ 'db' => [ 'class' => 'yii\db\Connection', 'dsn' => 'mysql:host=localhost;dbname=ggbn_index', 'username' => 'root', 'password' => 'mysqlr00t', 'charset' => 'utf8' ], 'mailer' => [ 'class' => 'yii\swiftmailer\Mailer', 'viewPath' => '@common/mail', // 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, 'transport' => [ 'class' => 'Swift_SmtpTransport', 'host' => '130.133.170.201', 'username' => 'do-not-reply@ggbn.org', 'port' => '25', 'encryption' => null, ], ] ] ];