MDaemon + 防火牆 的寄信問題

[tungwj]

環境如下
OS: Windows XP
郵件伺服器版本: MDaemon 6.8.5c
防火牆:
WindowsXP 內建防火牆
Kerio Personal Firewall 2.1.4
Kerio Personal Firewall 4.0.8
Agnitum Outpost Firewall 2.0.240
( 以上是試用過的 )

問題:
當透過MDaemon寄信給部分的信箱時, 信件一直寄不出去
訊息如下:

Parsing Message <C:\MDAEMON\Remoteq\pd50000000005.msg>
From: test@test.idv.tw
To: test@ms64.hinet.net
Subject: test ms64
Message-ID: <000a01c3d597$ea94bca0$046b45cb@testmain>
in progress (DNS Server: 168.95.1.1)...
P=000 D=ms64.hinet.net TTL=(1440) MX=[ms64a.hinet.net] {168.95.5.64}
Attempting MX: P=000 D=ms64.hinet.net TTL=(1440) MX=[ms64a.hinet.net] {168.95.5.64}
Attempting SMTP connection to [168.95.5.64 : 25]
Waiting for socket connection...
Socket connection established (203.69.107.4 : 1848 -> 168.95.5.64 : 25)
Waiting for protocol initiation...
30 second wait for protocol timeout exceeded.
This message is 15 minutes old; it has 45 minutes left in this queue
SMTP session abnormally terminated, 0 bytes transferred.

不知道是我的MDaemon的設定問題還是防火牆的設定問題
我試過將防火牆關閉, 又可以正常發送@@
不能傳送的有 ms##@hinet.net, umail.hinet.net, hotmail.com........等等
當然也有可以正常傳送的, msa.hinet.net ......大部分都可以

請有經驗的前輩們幫幫我
謝謝