Mdaemon server 6.72 無法發信?

還是有這樣的訊息不知如果解決?
The attached message had PERMANENT fatal delivery errors!

After one or more unsuccessful delivery attempts the attached message has
been removed from the mail queue on this server. The number and frequency
of delivery attempts are determined by local configuration parameters.

YOUR MESSAGE WAS NOT DELIVERED TO ONE OR MORE RECIPIENTS!

Failed address: yamamotoysc@tpk.co.jp

--- Session Transcript ---
Parsing Message <c:\mdaemon\msremq\PD50000008576.MSG>
From: kenny@c3317.com.cy
To: yamamotoysc@tpk.co.jp
Subject: test
Message-ID: <3ED2CDD6.000008.03620@ctci-tseng>
MX-record resolution of [tpk.co.jp] in progress (DNS Server: 168.95.1.1)...
P=020 D=tpk.co.jp TTL=(1440) MX=[nsx.tpk.co.jp] {210.249.164.34}
P=010 D=tpk.co.jp TTL=(1440) MX=[msx.tpk.co.jp] {210.249.164.35}
Attempting MX: P=010 D=tpk.co.jp TTL=(1440) MX=[msx.tpk.co.jp] {210.249.164.35}
Attempting SMTP connection to [210.249.164.35 : 25]
Waiting for socket connection...
Socket connection established
Waiting for protocol initiation...
<-- 220 msx.tpk.co.jp ESMTP Sendmail 8.11.6p2/8.11.1; Tue, 27 May 2003 11:30:02 +0900
--> EHLO c3317.com.cy
<-- 250-msx.tpk.co.jp Hello 218-165-121-220.HINET-IP.hinet.net [218.165.121.220], pleased to meet you
<-- 250-ENHANCEDSTATUSCODES
<-- 250-8BITMIME
<-- 250-SIZE
<-- 250-DSN
<-- 250-ONEX
<-- 250-ETRN
<-- 250-XUSR
<-- 250 HELP
--> MAIL From:<kenny@c3317.com.cy> SIZE=22276
<-- 501 5.1.8 Domain of sender address kenny@c3317.com.cy does not exist
--> QUIT
--- End Transcript ---
: Message contains [1] file attachments