This is the Postfix program at host sm1.163.com.
I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.
For further assistance, please contact <postmaster@163.com>
If you do so, please include this problem report. You can
delete your own text from the message returned below.
The Postfix program
亲爱的网易邮箱用户:
抱歉的通知您,您的邮件无法投递到目的地址.
可能的原因有:
1.您投递的用户不存在,或者不在系统中.请检查收信人地址.
<abc@vip.163.com>: User abc@vip.163.com is not found ...
<abc@yahoo.com>: Invalid User
<abc@163.com>: User unknown
2.您投递的信箱空间已满,请采用其他方式联系.
<abc@163.com>: Quota exceed the hard limit for user
3.您的信件被拒收了,请不要发送不受欢迎的信件.
<abc@163.com>: host ***.163.com said: 552 Error: content rejected
<abc@163.com>: host ***.163.com said: This Message is not welcome
4.您的信件太大了，被对方拒收退回了。
said: 552 Message size exceeds fixed limit
欢迎您注册使用网易VIP邮箱. http://vip.163.com/
<yysun@263.net>: host mx01.263.net[211.150.96.21] said: 550 <yysun@263.net>:
User unknown
]来这里显丑了