An error occurred while sending mail. The mail server responded:\n%s.\nPlease ensure that you are using the correct identity to send and that the used authentication method is correct. Verify that you are allowed to send via this SMTP server with your current credentials from your current network.
发送邮件时出错，邮件服务器响应：\n%s。 \n请确保您在使用正确的身份发送，且使用了正确的验证方式。请确认您已被允许在当前的网络、登录信息下使用此 SMTP 服务器进行发送。