swiftmailer 用163发邮件一直报错554 [ 2.0 版本 ]

邮件配置：

'mailer' => [
            'class' => 'yii\swiftmailer\Mailer',
            'viewPath' => '@common/mail',
            'messageConfig' => [
                'charset' => 'UTF-8',
                'from' => ['xxxx@163.com' => 'admin']
            ],
            // 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' => 'smtp.163.com',
                'username' => 'xxxx@163.com',
                'password' => '授权码',
                'port' => '25',
                'encryption' => 'tls'
            ],
        ],

发送邮件：

$from = "xxxx@163.com";
$to = "xxxx@qq.com";
$subject = "丽美国际";
$body = "给你发的测试邮件";
$mailer = Yii::$app->mailer->compose();
$mailer->setFrom($from);
$mailer->setTo($to);
$mailer->setSubject($subject);
$mailer->setHtmlBody($body);
$status = $mailer->send();

报错如下：

Expected response code 250 but got code "554", with message "554 DT:SPM 

查看网易的说明是如下：

554 DT:SPM 发送的邮件内容包含了未被许可的信息，或被系统识别为垃圾邮件。请检查是否有用户发送病毒或者垃圾邮件；

但是我如果用qq发邮件确实成功的，网易却一直包这个错误，有遇到的吗？