系統老是這樣:Transient Delivery Failure

hysun520

he 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: hy@szhuangyu.com
--- Session Transcript ---
Mon 2006-10-09 10:43:38: Parsing Message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000034700.msg>
Mon 2006-10-09 10:43:38: From: 123@123.com
Mon 2006-10-09 10:43:38: To: hy@szhuangyu.com
Mon 2006-10-09 10:43:38: Subject: =?big5?B?vdC02rNxqr4sr1Or5qXz?=
Mon 2006-10-09 10:43:38: Message-ID: <[email=014301c6eb43$cf6189d0$1600a8c0@123]014301c6eb43$cf6189d0$1600a8c0@123[/email]>
Mon 2006-10-09 10:43:38: MX-record resolution of [szhuangyu.com] in progress (DNS Server: 61.28.10.68)...
Mon 2006-10-09 10:43:38: Name server reports domain name unknown
Mon 2006-10-09 10:43:38: Attempting SMTP connection to [szhuangyu.com : 25]
Mon 2006-10-09 10:43:38: A-record resolution of [szhuangyu.com] in progress (DNS Server: 61.28.10.68)...
Mon 2006-10-09 10:43:38: Name server reports domain name unknown
Mon 2006-10-09 10:43:38: This message is 66 minutes old; it has 0 minutes left in this queue
Mon 2006-10-09 10:43:38: Primary queue lifetime exceeded; message placed in retry queue
--- End Transcript ---
近來發郵件老是有這樣的提示,我該怎麼解決
我們域名123.com在域名註冊商那里已經做了A記錄的.哪里高手可否幫我解決,謝謝

hysun520

高手呢,幫忙解決一下啊,求求你們了