Virus messages appearing in OWA, but not Outlook

I am having issues with filtered messages appearing in Outlook Web Access, but not in Outlook. I have created a rule to delete virus messages per the suggestion of Eset support. However, I have messages appearing in OWA with the subject "[virus a variant of Win32/Krypti...", but not appearing in Outlook. I am using the latest version of ESET Mail Security on SBS2008 with Exchange 2007 SP3. When I try to open the item in OWA, I see the following:


A virus was found in this message. The item cannot be opened. For more information, contact technical support for your organization.

Request
Url: https://remote.domain.com:443/owa/fo...bcAAPoH7aSAAAJ
User host address: 192.168.0.38
User: Firstname Lastname
EX Address: /o=First Organization/ou=first administrative group/cn=Recipients/cn=username
SMTP Address: username@domain.com
OWA version: 8.3.83.4
Mailbox server: SBS2008.domain.local

Exception
Exception type: Microsoft.Exchange.Data.Storage.VirusDetectedException
Exception message: Could not get properties.

Call stack
Microsoft.Exchange.Data.Storage.MapiPropertyBag.GetProperties(IList`1 propertyDefinitions)
Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag.InternalLoad(PropertyDefinition[] properties, Boolean forceReload)
Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag..ctor(StoreSession session, MapiProp mapiProp, Origin origin, PropertyDefinition[] autoloadProperties, Boolean canSaveOrDisposeMapiProp)
Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag..ctor(StoreSession session, MapiProp mapiProp, Origin origin, PropertyDefinition[] autoloadProperties)
Microsoft.Exchange.Data.Storage.Item.InternalBindItem(StoreSession session, StoreObjectId itemId, Byte[] changeKey, ItemBindOption itemBindOption, PropertyDefinition[] allPropsToLoad)
Microsoft.Exchange.Data.Storage.Item.InternalBind[T](StoreSession session, StoreId id, ItemBindOption itemBindOption, PropertyDefinition[] allPropsToLoad)
Microsoft.Exchange.Data.Storage.Item.InternalBind[T](StoreSession session, StoreId id, PropertyDefinition[] allPropsToLoad)
Microsoft.Exchange.Clients.Owa.Core.Utilities.GetItem[T](StoreSession storeSession, StoreId storeId, Boolean forceAsMessageItem, PropertyDefinition[] prefetchProperties)
Microsoft.Exchange.Clients.Owa.Core.Utilities.GetItem[T](UserContext userContext, StoreId storeId, Boolean forceAsMessageItem, PropertyDefinition[] prefetchProperties)
Microsoft.Exchange.Clients.Owa.Basic.OwaForm.Initialize[T](Boolean itemRequired, Boolean forceAsMessageItem, PropertyDefinition[] prefetchProperties)
Microsoft.Exchange.Clients.Owa.Basic.OwaForm.Initialize[T](PropertyDefinition[] prefetchProperties)
Microsoft.Exchange.Clients.Owa.Basic.ReadMessage.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Inner Exception
Exception type: Microsoft.Mapi.MapiExceptionVirusDetected
Exception message: MapiExceptionVirusDetected: Unable to get properties on object. (hr=0x80004005, ec=1291) Diagnostic context: Lid: 18969 EcDoRpcExt2 called [length=478] Lid: 27161 EcDoRpcExt2 returned [ec=0x0][length=472][latency=29] Lid: 23226 --- ROP Parse Start --- Lid: 27962 ROP: ropOpenMessage [3] Lid: 27962 ROP: ropGetPropsSpecific [7] Lid: 17082 ROP Error: 0x50B Lid: 26465 Lid: 21921 StoreEc: 0x50B Lid: 27962 ROP: ropExtendedError [250] Lid: 1494 ---- Remote Context Beg ---- Lid: 26426 ROP: ropGetPropsSpecific [7] Lid: 5257 StoreEc: 0x50B Lid: 1750 ---- Remote Context End ---- Lid: 26849 Lid: 21817 ROP Failure: 0x50B Lid: 20385 Lid: 28577 StoreEc: 0x50B Lid: 32001 Lid: 29953 StoreEc: 0x50B

Call stack
Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, Object objLastErrorInfo)
Microsoft.Mapi.MapiProp.GetProps(PropTag[] propTagsRequested)
Microsoft.Exchange.Data.Storage.MapiPropertyBag.GetProperties(IList`1 propertyDefinitions)
Edit/Delete Message