mdaemon9.5.1无法发送到除本域以外的邮箱

shenjianc

老大在吗，内外部接收都没问题，公司邮箱本域内可以发送，只要是@bbb.com可以互相发送，比如公司内部可以发送到出差在外的员工，发送到其他126，163都被退回，固定ip和域名，以下退信内容：
The attached message had transient non-fatal delivery errors

THIS IS A WARNING MESSAGE ONLY - YOU DO NOT NEED TO RESEND YOUR MESSAGE!

This server is configured to automatically retry delivery at configured intervals.  Subsequent attempts to deliver this message are pending.

Failed address: sss@126.com

--- Session Transcript ---
Tue 2009-12-15 13:19:46: Parsing Message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000021786.msg>
Tue 2009-12-15 13:19:46: From: sss@bbb.com  Tue 2009-12-15 13:19:46: To: sss@126.com  Tue 2009-12-15 13:19:46: Subject: =?gb2312?B?tPC4tDogdGVzdA==?=  Tue 2009-12-15 13:19:46: Message-ID:
Tue 2009-12-15 13:19:46: Attempting SMTP connection to [126.com : 25]  Tue 2009-12-15 13:19:46: Cache hit on [126.com]; IP = [220.181.12.218]  Tue 2009-12-15 13:19:46: Waiting for connection...
Tue 2009-12-15 13:19:48: Winsock Error 10051 The network is unreachable.
Tue 2009-12-15 13:19:48: This message is 63 minutes old; it has 0 minutes left in this queue  Tue 2009-12-15 13:19:48: Remote queue lifetime exceeded; message placed in retry queue
--- End Transcript ---
: Message contains [1] file attachments

老大，求助！

[ 本帖最后由 shenjianc 于 2009-12-15 16:45 编辑 ]