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M.E.D.Storage.CorruptDataException-18334 logged as Error 4999 in Exchange Server 2010 SP3 ?


Not sure why I got this issue logged regularly in one of my particular Hub Transport & Client Access Server (single server) running Exchange Server 2010 SP3 on Win 2008 R2 SP1.

Log Name:      Application
Source:        MSExchange Common
Date:          12/04/2015 7:06:28 PM
Event ID:      4999
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      PRODHTCAS02-VM.domain.com
Watson report about to be sent for process id: 3056, with parameters: E12, c-RTL-AMD64, 14.03.0123.004, M.E.RpcClientAccess.Service, M.Exchange.StoreProvider, M.M.MapiStream.get_Length, M.E.D.Storage.CorruptDataException-18334, aea7-d008, 14.03.0123.002.
ErrorReportingEnabled: False

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
    <Provider Name="MSExchange Common" />
    <EventID Qualifiers="16388">4999</EventID>
    <TimeCreated SystemTime="2015-04-12T09:06:28.000000000Z" />
    <Security />

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The other HT&CAS server node doesn't get this error logged regularly.

So far there is no user complained about anything related to this issue that I know of.

Does this also related to this error that is logged in another HT&CAS server role ? as I logged in this thread: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_28647132.html
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HariomExchange Experts

This issue may occurs if exchange version are inconsistent.

Do you have same rollup / service pack applied on all the servers ?

I recommend you keep all of the exchange server versions the same and check the result.


yes, all of them are the same 2010 SP3.
HariomExchange Experts
Have you also verified the roll up installed for Exchange 2010 ?.


no roll up is installed, so all servers are all still on SP3:

2x Mailbox servers (no DAG)
2x HT-CAS servers
Have you run the Exchange BPA to see if it finds any problems? When is the first this error started in your logs??? Does it correlate with any chances in your environment?


Does running the Exchange BPAin all server roles Can cause any outage ?
Running the Exchange BPA do not cause an outage.


ok, so in this case I've visitedhttp://support.microsoft.com/kb/2665115 but it suggest Exchange Server 2010 SP2 UR 1, mine is now on SP3.
I am reading two interesting article on this error...

One stats this is fixed in rollup 4 but you are already running SP3.. The other error can accure from a problem mailbox with invalid characters.



Thanks !