[求助]收发正常，但是每次发送一个信件都会从对方服务器返回一个错误邮件。

leewheel

不知道为什么，我往电信的信箱发信，那边液收到了，但是还是返回一封失败的信件回来，失败信件原文如下<br>
我是动态IP＋+Winserver2003+exchange2003Sp2,基本上收发都正常，就剩下这个问题了。<br>
Hi. This is Rockmail at mail1.8163.net.cn.<br>
I'm afraid I wasn't able to deliver your message to the following addresses.<br>
This is a permanent error; I've given up. Sorry it didn't work out.<br>
<br>
<eastop@eastop.xicp.net>:<br>
218.82.162.71 does not like recipient.<br>
Remote host said: 550 5.7.1 Unable to relay for eastop@eastop.xicp.net<br>
Giving up on 218.82.162.71.<br>
<br>
<admin@eastop.xicp.net>:<br>
218.82.162.71 does not like recipient.<br>
Remote host said: 550 5.7.1 Unable to relay for admin@eastop.xicp.net<br>
Giving up on 218.82.162.71.<br>
<br>
--- Enclosed is a copy of the message.<br>

atong999888

是有点怪，能否把这封邮件对应的smtp日志给大家分析一下.