This is the mail system at host smtp3-76.sinamail.sina.com.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.

The mail system

<spuuort@kztechs.com>: host aspmx.l.google.com[209.85.143.114] said: 550-5.1.1
The email account that you tried to reach does not exist. Please 550-5.1.1
try double-checking the recipient's email address for typos 550-5.1.1 or
unnecessary spaces. Learn more at 550 5.1.1
http://mail.google.com/support/bin/answer.py?answer=6596 d7si1102485tib.17
(in reply to RCPT TO command)

这封退信的内容是说你的邮件不能送达。这种情况出现在对方地址有误的时候出现。具体翻译，虽然不准，但可以供参考：


这是从新浪邮件主机smtp3-76发回的信，该邮件为3-76.sinamail.sina.com.cn
我很遗憾地通知你，你的信件不能成功送达到一个或多个收件者，以下为附加内容。
你可以发送邮件去主机获得更多的帮助。
请提供以下这个问题报告如果你这样做的话。你可以删除在附加的信息中的文字。
邮件系统

以下为附加的内容：
<spuuort@kztechs.com> 帐号不存在

翻译得不好，敬请原谅。