邮件发送失败

[wukchao]

Failed to authenticate on SMTP server with username "wukc668@163.com" using 2 possible authenticators
老师这个问题怎么解决

[jasonshere]

According to this error message, I'm sure that your username or password of email in configration named "web.php" was wrong, please check it carefully.

[wukchao]

'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,
'transport' => [
'class' => 'Swift_SmtpTransport',
'host' => 'smtp.163.com',
'username' => 'wukc668@163.com',
'password' => 'wu123456',
'port' => '465',
'encryption' => 'ssl',
],

    ],

this is my configration in web.php ,but it cann't be solved.