Exch2007 5.7.1 in reply to RCPT TO command

Posted on 2009-02-13
Last Modified: 2012-05-06
Hi all, we just got this weird message and I can't find that much info on the problem. Our reverse dns is working, I checked that. I checked out the spam filter for and it is apparently Microsoft's version of Postini. The mxlookup goes to, which is Microsoft's Hosted Spam Filtering.

I don't know what could be the issue. See error below.

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.
Diagnostic information for administrators:
Generating server:
#< #5.0.0 X-Postfix; host[] said: 550 5.7.1 Unable to deliver to <> (in reply to RCPT TO command)> #SMTP#
Original message headers:
Received: from mail27-wa4 (localhost.localdomain [])   by (Postfix) with ESMTP id 85A641428527   for
 <>; Fri, 13 Feb 2009 21:16:41 +0000 (UTC)
X-BigFish: vp
X-MS-Exchange-Organization-Antispam-Report: OrigIP:;Service: EHS
Received: by mail27-wa4 (MessageSwitch) id 1234559800411344_22656; Fri, 13 Feb 2009 21:16:40 +0000 (UCT)
Received: from ( [])
        (using TLSv1 with cipher AES128-SHA (128/128 bits))
        (No client certificate requested)
        by (Postfix) with ESMTP id 2AA5A68805D
        for <>; Fri, 13 Feb 2009 21:16:40 +0000 (UTC)
Received: from ([fe80::5110:9dd:9395:8c0d]) by
 ([fe80::5110:9dd:9395:8c0d%11]) with mapi; Fri, 13 Feb 2009 13:16:31 -0800
From: Amanda Underwood | Keep Memory Alive <>
To: "''" <>
Date: Fri, 13 Feb 2009 13:16:30 -0800
Subject: Press Announcement at Lou Ruvo Brain Institute
Thread-Topic: Press Announcement at Lou Ruvo Brain Institute
Thread-Index: AcmOHyc2Yzqh2EqeSmauYuQ2EXMH3AAASsrg
Message-ID: <>
Accept-Language: en-US
Content-Language: en-US
acceptlanguage: en-US
Content-Type: multipart/alternative;
MIME-Version: 1.0

Anyone have any ideas?
Question by:alittlegeeky
    1 Comment
    LVL 65

    Accepted Solution

    That looks like an internal problem at Microsoft. The message went inside, that is for sure, and then got rejected internally. Nothing you can do about it, the recipient needs to report it to Microsoft.


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