我发往******@magnecomp.com 的邮件最近老是被退回来，对方的帐号明明存在而且可以正常使用的。请问大家这个是对方的问题还我的邮件服务有问题。
谢谢


附：

Sent: Monday, June 20, 2005 11:39 AM
Subject: 系统退信(chnbounce.letter)


> This message is generated by COREMAIL email system.
> I'm sorry to have to inform you that the message returned
>
> The message to ******@magnecomp.com is bounced because : SMTP error, RCPT TO: 551 User not local; please try
>
> 你发送到******@magnecomp.com的邮件由于以下原因被退回 : SMTP error, RCPT TO: 551 User not local; please try
>

郁闷

什么系统？你的邮件服务器可以发向其它的地址吗？

谢谢！

CoreMail！发往国内的都没有问题！发往国外的时好时坏！

通过测试发现magnecomp.com域名可以发送信件的,查看退信的内容,应该是你发送的地址有问题.或者是转发地址
[coremail@bj coremail]# nslookup
Note: nslookup is deprecated and may be removed from future releases.
Consider using the `dig' or `host' programs instead. Run nslookup with
the `-sil[ent]' option to prevent this message from appearing.
> set type=mx
> magnecomp.com
Server: 211.95.193.97
Address: 211.95.193.97#53

Non-authoritative answer:
magnecomp.com mail exchanger = 10 sinbad.vqbn.com.
magnecomp.com mail exchanger = 5 spock.vqbn.com.

Authoritative answers can be found from:
magnecomp.com nameserver = daisy.vqbn.com.
magnecomp.com nameserver = donald.vqbn.com.
spock.vqbn.com internet address = 202.73.32.79
sinbad.vqbn.com internet address = 202.73.32.20
daisy.vqbn.com internet address = 202.73.37.10
donald.vqbn.com internet address = 202.73.37.2
> exit

[coremail@bj coremail]# telnet 202.73.32.20 25
Trying 202.73.32.20...
Connected to 202.73.32.20.
Escape character is '^]'.
220 sinbad.vqbn.com ESMTP
helo aa
250 sinbad.vqbn.com
mail from:freemanyang@nihao.net
250 ok
rcpt to:support@magnecomp.com
250 ok
data
354 go ahead
.
250 ok 1120785399 qp 23454
quit
221 sinbad.vqbn.com
Connection closed by foreign host.

我确定我的邮件地址没有问题!因为在这封邮件前后都能成功发送!
而且经常发生类似的问题:
> The message to XXXXX@kaifa.com.hk is bounced because : SMTP error, RCPT TO: 551 User not local; please try <forward-path>
>
> 你发送到XXXXX@kaifa.com.hk的邮件由于以下原因被退回 : SMTP error, RCPT TO: 551 User not local; please try <forward-path>

象上面的这个问题是,我发给kaifa.com.hk两个人,其中一个有退信通知,之后打电话对方说他的绝对没有任何问题.

不知道是什么原因造成的!请大家指教一下!

好感动，楼主真是有心，一年多的帖子一直在研究。
关于551 User not local; please try的问题，最近两周又出来了。是GFW的关系。你可以看一下：
http://www.5dmail.net/bbs/thread-157760-1-1.html