题目

英语翻译
This is the mail system at host mx2-199.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
(expanded from
):host
mail3-133i.sinamail.sina.com.cn[10.55.2.133] said:521 5.2.2 can not find
the user (in reply to RCPT TO command)

提问时间：2021-03-30

答案

这是 mx2-199.sinamail.sina.com.cn 服务器上的邮件系统.
我非常抱歉地通知您,你的邮件无法被传递至一个（或多个）收件人,它被附在了下面
若要得到更多的帮助,请向邮件管理员发送邮件
如果你这样做,请将这个问题报告也包含在内.你可以删除该附加的返回消息中你自己的内容
邮件系统
mail3-133i.sinamail.sina.com.cn{10.55.2.133]返回消息：521 找不到该用户 (在RCPT TO命令的回复消息中）