各位大哥大姐帮个忙This is the mail system at host innermx3-51.sinamai

This is the mail system at host innermx3-51.sinamail.sina.com.cn.
这是封来自新浪网系统自带的邮件.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients.It's attached below.
我很抱歉不得不通知您,您的信息不能被传送给一个或多个接受者,看下面的附带的内容.
For further assistance,please send mail to postmaster.
想要远程帮助,请发送邮件给网站站长.
If you do so,please include this problem report.You can
delete your own text from the attached returned message.
如果你那样做,请附上此问题的报告.你可以从附带的回信中删除你自己的原文.
The mail system
此邮件的系统：
(expanded from ):
zyz6332@mail3-76.sinamail.sina.com.cn 是zyx6332@sina.com邮箱的展开式
host mail3-76i.sinamail.sina.com.cn[10.55.2.76] said:550 user path no
exist (in reply to RCPT TO command)
主mail3-76i.sinamail.sina.com.cn[10.55.2.76] 显示：找不到550的这个用户,此路径不存在（响应,接受,命令）
是说邮件出错,550这个用户不存在.

你的邮件发送不了