Exchange NDR
Move the mailboxes to another database and test again. Also if you have any AV on exc, disable and test.Sukh
March 28th, 2012 3:59am

hi, Have you try SUKH's sloution? Please post the result. If can't help you, please change the diagnostic logging level for Transport and Store Driver, then reproduce this issue and check the relevant Event. hope can help you thanks,CastinLu TechNet Community Support
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March 29th, 2012 5:34am

I am working on moving the mailboxes to a new database now. Will test again when complete. Thanks for the help.
April 27th, 2012 9:18am

Getting the following error sporadically, usually when a task request or appointment is involved. Found some articles about Exchange SP2 correcting this problem, but we are on SP3. Exchange 2007 SP3 RU5 SBS 2008 Outlook 2010 SP1 (both clients) Diagnostic information for administrators: Generating server: EIISBS2.eii.lan mlehnard@domain.com #554 5.6.0 STOREDRV.Deliver.Exception:ObjectValidationException; Failed to process message due to a permanent exception ## Original message headers: Received: from EIISBS2.eii.lan ([fe80::4457:b6f5:2a63:73ed]) by EIISBS2.eii.lan ([fe80::4457:b6f5:2a63:73ed%10]) with mapi; Tue, 27 Mar2012 14:30:44 -0500 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: Dickson <dstewart@domain.com To: Mary <mlehnard@domain.com Importance: high X-Priority: 1 Date: Tue, 27 Mar 2012 14:29:51 -0500 Subject: Task Request: Oakland New - RFI 111 Thread-Topic: Oakland New - RFI 111 Thread-Index: Ac0MT/qn5sTXzNnsQtOu8qDm+Lw1bg== Message-ID: <4DF9F1A55A448642888CF61611DDD166AA89A0719D@EIISBS2.eii.lan> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: <4DF9F1A55A448642888CF61611DDD166AA89A0719D@EIISBS2.eii.lan> MIME-Version: 1.0
Free Windows Admin Tool Kit Click here and download it now
April 27th, 2012 4:01pm

Move the mailboxes to another database and test again. Also if you have any AV on exc, disable and test.Sukh
April 27th, 2012 9:16pm

hi, Have you try SUKH's sloution? Please post the result. If can't help you, please change the diagnostic logging level for Transport and Store Driver, then reproduce this issue and check the relevant Event. hope can help you thanks,CastinLu TechNet Community Support
Free Windows Admin Tool Kit Click here and download it now
April 27th, 2012 10:52pm

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