Undelivered Mail Returned to Sender

[Mail Delivery System]

This message is generated by xinnetmail
您收到的是来自新网专业邮件系统的信件. 

非常抱歉通知您，这封信无法投递到对方。请看附件，如需更多帮助，请联系管理员。
为了提高处理效率，您可以将此退信，作为附件的形式转发给系统管理员，谢谢！
This is the mail system at host mxf.global-mail.cn.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
错误如下：

<sales at meanselect.com>: host 58.221.79.22[58.221.79.22] said: 550 no such user
    here (umail mta) (in reply to RCPT TO command)
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