发海外信件时整天会"永久投递失败"附上日志

caidr

国内的邮件接收发送都正常，但发送国外时有时会出现永久投递失败，哪位仁兄知道是啥原因，谢谢，而且外国的客户反映有时候不能给我们发邮件。


Tue 2010-06-08 15:15:38: Session 6785; child 1
Tue 2010-06-08 15:15:37: Parsing message <e:\emailsv\mdaemon\queues\remote\pd35000021486.msg>
Tue 2010-06-08 15:15:37: * From: vicky@sky21.com.cn
Tue 2010-06-08 15:15:37: * To: sales@supplychainsolc.com
Tue 2010-06-08 15:15:37: * Subject: 2=829=Quotation
Tue 2010-06-08 15:15:37: * Size (bytes): 315077
Tue 2010-06-08 15:15:37: * Message-ID: <009901cb06da$1cc6d120$6900a8c0@Ashley>
Tue 2010-06-08 15:15:37: Attempting SMTP connection to [supplychainsolc.com]
Tue 2010-06-08 15:15:37: Resolving MX records for [supplychainsolc.com] (DNS Server: 58.60.188.178)...
Tue 2010-06-08 15:15:37: * P=010 S=000 D=supplychainsolc.com TTL=(44) MX=[inbound.supplychainsolc.com.netsolmail.net] {205.178.149.7}
Tue 2010-06-08 15:15:37: Attempting SMTP connection to [205.178.149.7:25]
Tue 2010-06-08 15:15:37: Waiting for socket connection...
Tue 2010-06-08 15:15:37: * Connection established (121.37.60.86:3444 -> 205.178.149.7:25)
Tue 2010-06-08 15:15:37: Waiting for protocol to start...
Tue 2010-06-08 15:15:37: <-- 550 Rejected: 121.37.60.86, listed at http://csi.cloudmark.com/reset-request for remediation.
Tue 2010-06-08 15:15:37: --> QUIT
Tue 2010-06-08 15:15:38: <-- 221 cm-mr8 closing connection
Tue 2010-06-08 15:15:38: SMTP session terminated (Bytes in/out: 126/6)
Tue 2010-06-08 15:15:38: ----------

heieye104

Tue 2010-06-08 15:15:37: <-- 550 Rejected: 121.37.60.86, listed at http://csi.cloudmark.com/reset-request  for remediation.