往SINA 163发送不了邮件的详细纪录,请各看看分析一下什么原因

corun

MD7.01发送到SINA很多次都不能发送成功，同样我用WEBEASYMAIL做服务器的话就可以发送成功，这是什么原因？<br>
MD记录如下:<br>
Tue 2004-04-20 12:56:14: From: zhoujunqi@corun.com<br>
Tue 2004-04-20 12:56:14: To: zhoujunqi2000@sina.com.cn<br>
Tue 2004-04-20 12:56:14: Subject: test<br>
Tue 2004-04-20 12:56:14: Message-ID: <WorldClient-F200404201133.AA33500020@corun.com><br>
Tue 2004-04-20 12:56:14: MX-record resolution of [sina.com.cn] in progress (DNS Server: 202.103.86.3)...<br>
Tue 2004-04-20 12:56:14: P=010 D=sina.com.cn TTL=(1) MX=[sinamx.sina.com.cn] {202.106.182.168}<br>
Tue 2004-04-20 12:56:14: Attempting MX: P=010 D=sina.com.cn TTL=(1) MX=[sinamx.sina.com.cn] {202.106.182.168}<br>
Tue 2004-04-20 12:56:14: Attempting SMTP connection to [202.106.182.168 : 25]<br>
Tue 2004-04-20 12:56:14: Waiting for socket connection...<br>
Tue 2004-04-20 12:56:14: Socket connection established (220.168.134.2 : 4014 -> 202.106.182.168 : 25)<br>
Tue 2004-04-20 12:56:14: Waiting for protocol initiation...<br>
Tue 2004-04-20 12:56:15: <-- 220 sina.com ESMTP<br>
Tue 2004-04-20 12:56:15: --> EHLO corun.com<br>
Tue 2004-04-20 12:56:15: <-- 250-sina.com<br>
Tue 2004-04-20 12:56:15: <-- 250-PIPELINING<br>
Tue 2004-04-20 12:56:15: <-- 250 8BITMIME<br>
Tue 2004-04-20 12:56:15: --> MAIL From:<zhoujunqi@corun.com><br>
Tue 2004-04-20 12:56:15: <-- 250 ok<br>
Tue 2004-04-20 12:56:15: --> RCPT To:<zhoujunqi2000@sina.com.cn><br>
Tue 2004-04-20 12:56:15: <-- 250 ok<br>
Tue 2004-04-20 12:56:15: --> DATA<br>
Tue 2004-04-20 12:56:15: <-- 354 请继续 - go ahead<br>
Tue 2004-04-20 12:56:15: Sending <d:\mdaemon\remoteq\retry\pd90000000047.msg> to [202.106.182.168]<br>
Tue 2004-04-20 12:56:15: Transfer Complete.<br>
Tue 2004-04-20 13:06:15: Connection timed out!<br>
Tue 2004-04-20 13:06:15: This message is 0 days old; it has 5 days left to get delivered<br>
Tue 2004-04-20 13:06:15: SMTP session abnormally terminated (Bytes in/out: 149/992)<br>
Tue 2004-04-20 13:06:15: ----------<br>

jjl009

sina邮件服务器的问题，发送到sina的免费邮箱，成功与失败的比例差不多，