请大侠相助，突然发不出邮件了，以前是好的，错误信息如下

疾风魔狼

The attached message had transient non-fatal delivery errors<br>
<br>
THIS IS A WARNING MESSAGE ONLY - YOU DO NOT NEED TO RESEND YOUR MESSAGE!<br>
<br>
This server is configured to automatically retry delivery at configured<br>
intervals. Subsequent attempts to deliver this message are pending.<br>
<br>
Failed address: dingzx@hotmail.com<br>
<br>
--- Session Transcript ---<br>Tue 2005-07-19 13:22:03: Parsing Message <xxxxxxxxxxxxxxxxxx\pd50000012415.msg><br>Tue 2005-07-19 13:22:03: From: info@sx.net.cn<br>Tue 2005-07-19 13:22:03: To: dingzx@hotmail.com<br>Tue 2005-07-19 13:22:03: Subject: Test<br>Tue 2005-07-19 13:22:03: Message-ID: <WorldClient-F200507191216.AA16120000@sx.net.cn><br>Tue 2005-07-19 13:22:03: MX-record resolution of [hotmail.com] in progress (DNS Server: 202.96.107.21)...<br>Tue 2005-07-19 13:22:03: Name server has no records of the requested type for that domain<br>Tue 2005-07-19 13:22:03: Attempting SMTP connection to [hotmail.com : 25]<br>Tue 2005-07-19 13:22:03: A-record resolution of [hotmail.com] in progress (DNS Server: 202.96.107.21)...<br>Tue 2005-07-19 13:22:03: Name server has no records of the requested type for that domain<br>Tue 2005-07-19 13:22:03: This message is 65 minutes old; it has 0 minutes left in this queue<br>Tue 2005-07-19 13:22:03: Primary queue lifetime exceeded; message placed in retry queue<br>
--- End Transcript ---<br>
: Message contains [1] file attachments<br>

疾风魔狼

我的mdaemon是8.0.3版本的<br>
Windows2003 + SP1

疾风魔狼

系统内发邮件正常，如：<br>
abc@sx.net.cn发送给efg@sx.net.cn正常<br>
就是发给系统以外的不行，DNS设置应该是正常的，Windows的防火墙也处于关闭状态<br>
急啊，已经好几天了

hshletter

换个DNS服务器试试.

sandal

你设的DNS当时解释不到hotmail.com , 我试过DNS.21CN.COM, 反映很快