야후메일로 메일 발송이 되지 않습니다.

야후메일로 메일을 보내면 아래와 같이 메일큐에 쌓입니다.
부디 고수분들의 많이 답변 부탁드릴께요....

V6
T1083112285
K1083112286
N1
P30400
MDeferred: 421 VS5-MF Excessive unknown recipients - possible Open Relay http://help.yahoo.com/help/us/mail/spam/spam-18.html
(#4.4.5)
F8bs
$_localhost.localdomain [127.0.0.1]
$rESMTP
$swww3.goldenshop.biz
${daemon_flags}
S<nobody@www3.goldenshop.biz>
A<>
MDeferred: 421 VS5-MF Excessive unknown recipients - possible Open Relay http://help.yahoo.com/help/us/mail/spam/spam-18.html
(#4.4.5)
rRFC822; freeimagekr@yahoo.co.kr
RPFD:<freeimagekr@yahoo.co.kr>
H?P?Return-Path: <~Ag>
H??Received: from www3.goldenshop.biz (localhost.localdomain [127.0.0.1])
        by www3.goldenshop.biz (8.12.5/8.12.5) with ESMTP id i3S0VP5K006873
        for <freeimagekr@yahoo.co.kr>; Wed, 28 Apr 2004 09:31:25 +0900
H?x?Full-Name: Nobody
H??Received: (from nobody@localhost)
        by www3.goldenshop.biz (8.12.5/8.12.5/Submit) id i3S0VPAC006872;
        Wed, 28 Apr 2004 09:31:25 +0900
H??Date: Wed, 28 Apr 2004 09:31:25 +0900
H??Message-Id: <200404280031.i3S0VPAC006872@www3.goldenshop.biz>
H??To: freeimagekr@yahoo.co.kr
H??Subject: 메일 제목
H??From: 관리자<guru@golden21.net>
H??Reply-To: guru@golden21.net
H??X-Mailer: PHP4.1.0
H??Content-Type: text/html;charset=EUC-KR