mail 问题?? 发给163信箱,正常,而发送新浪出现退信

退信内容如下:Error sending message [1143046786.1064.ec-3hwbxcnon8db] from [redcome.com].ID:        <S44218280>
Mail From: <[email protected]>
Rcpt To:   <[email protected]><Failure Reason>
The maximum number of tentatives has been reached
</Failure Reason>Below is reported the message header:Received: from redcome.com (221.220.243.137)
by redcome.com (211.99.156.69) with [jdmail 3.5.1 (Win32/Ix86) ESMTP Server]
id <S44218280> for <[email protected]> from <[email protected]>;
Mon, 03 Apr 2006 15:45:22 +0800
X-TM: 221.220.243.137;ec37;211.99.156.69;redcome.com;[email protected];[email protected];auth
Message-ID: <002301c656f2$dc1eacb0$6700a8c0@ec37>
From: <[email protected]>
To: <[email protected]>
Cc: <[email protected]>
Subject: [email protected]
Date: Mon, 3 Apr 2006 15:47:30 +0800
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0020_01C65735.EA3605D0"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1106
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106那位大哥知道是什么原因?