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Exchange Server 2007 Receiver Connector Help

Posted on 2011-10-03
Medium Priority
Last Modified: 2012-05-12
I am having a problem with receiving mail in a single server environment for Exchange Server 2007. External email comes back with the following:

Delivery has failed to these recipients or distribution lists:

There's a problem with the recipient's mailbox. 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: In-MTA.

Sent by Microsoft Exchange Server 2007

Diagnostic information for administrators:

Generating server: PLAINFIELD.NHSCNJ.ORG

In-MTA #552 5.2.0 Mail loop detected, just reject. ##rfc822;jthompson@nhscnj.org

Original message headers:

Received: from NHSCIMVS.CORP.LOCAL ( by
 id 8.1.436.0; Mon, 3 Oct 2011 11:34:02 -0400
Received: from NHSCIMVS.CORP.LOCAL (unknown [])      by IMSVA80 (Postfix)
 with ESMTP id C9D05380038      for <jthompson@nhscnj.org>; Mon,  3 Oct 2011
 11:34:51 -0400 (EDT)
Received: from Out-MTA (unknown [])      by NHSCIMVS.CORP.LOCAL
 (Postfix) with SMTP id 6F37E380036      for <jthompson@nhscnj.org>; Mon,  3 Oct
 2011 11:34:51 -0400 (EDT)
Received: from In-MTA ([])      by Out-MTA with Trend Micro Email
 Security Platform for SP      id gCD31h0042wzwz201Fc0u3; Mon, 03 Oct 2011 15:36:00
Received: from asmtpout019.mac.com ([])      by In-MTA with Trend Micro
 Email Security Platform for SP      id gFc01h00621mDZ501Fc0Wr; Mon, 03 Oct 2011
 15:36:00 +0000
X-TM-AS-Result: No--5.830-5.0-31-10
X-IMHT-HDR: Ver-1.0-TMAV-Scanned-0-TMAS-Scanned-Spam:-5-URL:0
X-IMHT-IMPID: gFc01h00621mDZ501Fc0Wr
X-IMHT-IMPRCPT: jthompson@nhscnj.org
X-IMHT-IMPTIME: 20111003153600
MIME-Version: 1.0
Content-Transfer-Encoding: 7BIT
Content-Type: text/plain; charset="US-ASCII"
Received: from 2015_itdirector.phcmednet.org ([]) by
 asmtp019.mac.com (Oracle Communications Messaging Server
 7u4-23.01( 64bit (built Aug 10 2011)) with ESMTPSA id
 <0LSH001L8XZQLL50@asmtp019.mac.com> for jthompson@nhscnj.org; Mon, 03 Oct
 2011 08:35:52 -0700 (PDT)
X-Proofpoint-Virus-Version: vendor=fsecure
 definitions=2011-10-03_03:2011-10-03,2011-10-03,1970-01-01 signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=1 spamscore=1
 ipscore=0 suspectscore=1 phishscore=0 bulkscore=0 adultscore=0 classifier=spam
 adjust=0 reason=mlx scancount=1 engine=6.0.2-1012030000
From: Jeffery Thompson <jeff5061@me.com>
Subject: Test email for Exchange 2007
Date: Mon, 3 Oct 2011 11:35:25 -0400
Message-ID: <0D9AD67D-D38E-4931-9726-277D478B8A3E@me.com>
To: <jthompson@nhscnj.org>
X-Mailer: Apple Mail (2.1084)
X-TM-AS-Product-Ver: IMSVA-
X-imss-scan-details: No--5.830-5.0-31-10
X-TMASE-MatchedRID: XQpvBiL41dL/LzL3GmAdzUZakoam9+aeixMX9uM9Zs6WnKrEhSD9lMnj
Return-Path: jeff5061@me.com
Arrival-Date: Mon, 3 Oct 2011 15:34:02 +0000

Original-Recipient: rfc822;jthompson@nhscnj.org
Final-Recipient: rfc822;jthompson@nhscnj.org
Action: failed
Status: 5.2.0
Diagnostic-Code: smtp;552 5.2.0 Mail loop detected, just reject.
Remote-MTA: dns;In-MTA

Any assistance will be greatly appreciated.
Question by:jthompson01
  • 2

Expert Comment

ID: 36905419
Checked your headers and it seems





and then it is rejected by

In-MTA, is your NHSCEXCHANGE pointing the outbound to IN-MTA.

Like a smarthost pointing to inmta from plainfield server.

Author Comment

ID: 36905772
Here is some additional information.  We use Trend Micro's Pre-Cloud Filtering that forwards email to a Trend Micro IMSVA Appliance that then forwards it to the exchange server.  When I trace the email through the log files it arrives in the exchange server but doesn't get to the client.  TalkExchange, I'm not understanding your statement or question.

Accepted Solution

TalkExchange earned 2000 total points
ID: 36906527
What i meant is there could be two kinds of loops

1. Configuration wheren in one server forwards to another one and back to the first one causing a loop.

2. If your domain is non auth, and it sends to smarthost or mx record and back through the loop.

It seems like some configuration issue.

If it is reaching the server please check your accounts if they are stamped correctly, also check your email address policy, domains and lastly your send connectors.

You can also you



and Exbpa for clues.

Also what happens when you telnet and submit an email to the exchange server.



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