服务器是从Exchange2003迁移到Exchange2007的，单服务器3角色安装。
发送是使用智能主机smtp.263.net来发送的！ 邮箱和域名都是万网的。
发好多公司的邮箱都收到类似退信！请问改如何解决？做反向IP解析？ 【也打电话问过万网，他们说他们那没问题。。。】
以下是退信信息：
Delivery has failed to these recipients or distribution lists:
MaryAnn Snyder (msnyder@prarchitects.com)
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: ESMTP.
_____
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: PAATSH07.PAAT.local
msnyder@prarchitects.com
ESMTP #554 Transaction Failed Spam Message not queued. ##
Original message headers:
Received: from PAATSH07.PAAT.local ([::1]) by PAATSH07.PAAT.local ([::1]) with
mapi; Wed, 4 May 2011 14:06:29 +0800
From: Rick.Deng <rick.deng@PAAT.com>
To: Brian McNamara <BMcNamara@acumenadvisors.com>
CC: "MaryAnn Snyder (msnyder@prarchitects.com)" <msnyder@prarchitects.com>,
Daisy Zhu <daisy.zhu@PAAT.com>
Date: Wed, 4 May 2011 14:06:28 +0800
Subject: RE: P+R Shanghai meeting minutes on 15th April 2011
Thread-Topic: P+R Shanghai meeting minutes on 15th April 2011
Thread-Index: AcwJ/ldpfxw6Scp/Qhu5VE7ozgJbmwAB6T2g
Message-ID: <59FFB26E108E604B8FC9E157AE747362222436B8@PAATSH07.PAAT.local>
References: <BE1BFCAC31747546B6222AC0AAB3FA7B60FD6F@paatsh02.PAAT.local><E0FE20A2-DBAC-4762-9A2A-EEDD50C1FA57@prarchitects.com><2E348E8407B6834980F5134743216AC0EDA982@lbex2.prarchitects.com><59FFB26E108E604B8FC9E157AE7473622224365C@PAATSH07.PAAT.local>
<739456472.2952896.1304474126467.JavaMail.rim@bda290.bisx.prod.on.blackberry>
In-Reply-To: <739456472.2952896.1304474126467.JavaMail.rim@bda290.bisx.prod.on.blackberry>
Accept-Language: en-US, zh-CN
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US, zh-CN
Content-Type: multipart/alternative;
boundary="_000_59FFB26E108E604B8FC9E157AE747362222436B8PAATSH07PAATloc_"
MIME-Version: 1.0
Exchange2007，现在一直收到发送后退信！急救！
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