注册邮件发送不了，到底是什么原因？？
为什么没有老师出来解决下，有好多人也 遇到了
Fatal error: Uncaught exception 'Swift_TransportException' with
message 'Failed to authenticate on SMTP server with username
"342058655@qq.com" using 1 possible authenticators' in
D:\phpStudy\WWW\app\swiftmailer-master\lib\classes\Swift\Transport\Esmtp\AuthHandler.php:184
Stack
trace:
#0
D:\phpStudy\WWW\app\swiftmailer-master\lib\classes\Swift\Transport\EsmtpTransport.php(312):
Swift_Transport_Esmtp_AuthHandler->afterEhlo(Object(Swift_SmtpTransport))
#1
D:\phpStudy\WWW\app\swiftmailer-master\lib\classes\Swift\Transport\AbstractSmtpTransport.php(120):
Swift_Transport_EsmtpTransport->_doHeloCommand()
#2
D:\phpStudy\WWW\app\swiftmailer-master\lib\classes\Swift\Mailer.php(80):
Swift_Transport_AbstractSmtpTransport->start()
#3 D:\phpStudy\WWW\app\doAction.php(53):
Swift_Mailer->send(Object(Swift_Message))
#4 {main}
thrown in D:\phpStudy\WWW\app\swiftmailer-master\lib\classes\Swift\Transport\Esmtp\AuthHandler.php on line 184
