Exchange/Outlook. All users cannot open emails with attachments/images.

Hi,

Exchange 2010 running on Windows SBS 2011 SP1 (VM on ESX)
Outlook 2010
Issue started after a power outage and server VMs were rebooted.
Issue is happening to all users.
Plain text emails can be opened and read fine.
Issue appers to be with emails with attachments or images in the body.
In Outlook:
-When opening an email: "Cannot open this item."
-In reading pane: "This item cannot be displayed in the reading pane. Open the item to read its contents."
-In webmail(OWA): "A problem occurred while you were trying to use your mailbox." (Detailed error attached)
These emails cannot be deleted in Outlook but can be deleted in OWA.

Please advise on a solution.
Let me know if further info is required.

Thanks
owaerror.txt
scraftausAsked:
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Amit KumarCommented:
Do you use Forefront Protection for Exchange 2010, if yes you may be getting error because of that.

Try dis-integrate FPE with mailbox server and re-integrate it.

1). Stop Exchange and ForeFront Services on your mailbox server only.
2).  C:\Program Files\Microsoft Forefront Security\Exchange Server>fscutility /status
3). C:\Program Files\Microsoft Forefront Security\Exchange Server>fscutility /disable
4). C:\Program Files\Microsoft Forefront Security\Exchange Server>fscutility /status
5).  C:\Program Files\Microsoft Forefront Security\Exchange Server>fscutility /enable
6). Start Exchange Services (ForeFront will start automatically).

Also I would like to know if you are getting any errors in Event viewer for FPE.
scraftausAuthor Commented:
Hi,

No the server does not use Forefront.
Any other event logs I can check?

Thanks.
Amit KumarCommented:
Check on CAS server as well if there is any event as warning/error.

Confirm if any other antispam/antivirus product you are using on Mailbox server.

One more thing, please run ExBPA to check health of your Exchange forest.

I checked attached error file and researched on it so found it can be issue with your antivirus, verify if you had excluded Exchange installation folder and DB paths in antivirus and now are they available or not. Ideally they should be excluded from Antivirus. Please find this article for details of exclusion.

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Lahiru NanayakkaraManager - Technical Services Commented:
Check whether the virus definition is up to date in your mail server AV & if there failing on definition update.
scraftausAuthor Commented:
Thanks. We've found that the issue was caused by Symantec Endpoint AV.
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