Exchange 2010 SP3 RU10 Released

The Exchange team today announced the availability of Update Rollup 10 for Exchange Server 2010 Service Pack 3. RU10 is the latest rollup of customer fixes available for Exchange Server 2010. The release contains fixes for customer reported issues and previously released security bulletins.

Exchange 2010 SP3 RU10 Download

This is build 14.03.0248.002 of Exchange 2010, and KB3049853 has the full details for the release.  The update file name is Exchange2010-KB3049853-x64-en.msp.

Note that this is only for the Service Pack 3 branch of Exchange 2010.  Why?  Exchange 2010 SP2 exited out of support on the 8th of April 2014 and will no longer receive updates.  Customer must be on Exchange 2010 SP3 to receive updates.

Also note that Exchange 2010 transitioned into its Extended product support lifecycle phase on the 13th of January 2015.  Exchange 2010 will now be serviced as per the extended support policy.  


Issues Resolved

  • KB 3069055 Various DAG maintenance scripts do not work in an Exchange Server 2010 environment
  • KB 3057422 "MapiExceptionNoAccess: Unable to query table rows" error and some mailboxes cannot be moved
  • KB 3056750 Exchange ActiveSync application pool crashes in an Exchange Server 2010 environment
  • KB 3054644 "The item no longer exists" error when you access an archive mailbox in Outlook Web App in Exchange Server 2010
  • KB 3051284 Event ID 4999 is logged and MSExchangeServicesAppPool crashes in an Exchange Server 2010 environment
  • KB 3049596 Event ID 4999 is logged and remote procedure call Client Access service crashes in an Exchange Server 2010 environment
  • KB 2964344 MSExchangeRPC service stops working intermittently in Exchange Server 2010


Important Notes

Now, before we rush off to download and install this there are a couple of items to mention!

  • Test the update in your lab before installing in production.  If in doubt test…

  • Ensure that you consult with all 3rd party vendors which exist as part of your messaging environment.  This includes archive, mobility and management services.
  • Ensure that you do not forget to install updates on management servers, jump servers/workstations and application servers where the management tools were installed for an application.  FIM and 3rd party user provisioning solutions are examples of the latter. 
  • If the Exchange server does not have Internet connectivity then this introduces significant delay in building the Native images for the .Net assemblies as the server is unable to get to  To resolve this issue, follow these steps:

    1. On the Tools menu in Windows Internet Explorer, click Internet Options, and then click the Advanced tab.

    2. In the Security section, click to clear the Check for publisher's certificate revocation check box, and then click OK.

    We recommend that you clear this security option in Internet Explorer only if the computer is in a tightly controlled environment. When setup is complete, click to select the Check for publisher’s certificate revocation check box again.

  • Install the update from an elevated command prompt
  • Update Internet facing CAS servers first
  • Backup any OWA customisations as they will be removed

  • Uninstall any Interim Updates (IUs) before installing he RU.  You will have received these private files directly from Microsoft.

  • Disable file system antivirus prior to installing the RU.
  • Restart server after RU has been installed and then re-enable file system antivirus
  • Test (yes, technically this is in here for a second time but it is very important!)



Comments (7)
  1. alex says:

    has any issue been reported on ru 10

  2. Andrew says:

    Yes, I have severe issues.
    I waited almost two months to install this rollup. I had it installed in a test environment for almost a month. Last night I installed in our production environment, and now no one can connect to their mailbox with Outlook. OWA works. The online connectivity
    analyzer says everything is fine. The locally installed version of the connectivity analyzer says everything is fine. I can quickly setup a new Outlook profile and autodiscover works perfectly. But when any user then tries to open outlook, they get an error:
    "cannot open your default email folders. you do not have permission to log on". There is nothing in the event logs on the CAS server. The mailbox server puts an eventID 4625 from source "Microsoft Windows Secuurity" in the security log with each login attempt.
    These errors show a Security ID of "NULL SID", with the account name being the name of the CAS server. Any thoughts or ideas that may be helpful? Thanks.

  3. Erik says:

    Hi Andrew,
    We were just thinking about installing the update ourselves. But reading this, we will postpone the install.

    Can’t you try to uninstall the update to solve your issues?

  4. Erik says:

    To remove Update Rollup 10 for Exchange Server 2010 SP3, use the Add or Remove Programs item in Control Panel to remove update 3049853.

  5. All the Exchange servers in that site were updated to SP3 RU10 and then rebooted Andrew?

    Also, have you introduced 2012 or 2012 DCs recently ?


  6. Joe says:

    Thanks these steps were incredibly helpful.
    Couple of small things I ran into involved our ScanMail antivirus where I needed to disable the service and reboot prior to install. Just stopping the services didn’t seem to be enough as there were permissions and file access errors that appeared in the MSI
    Error Log if not. Additionally make sure to run this from an elevated command prompt (this was also likely a big factor in getting the permissions errors ironed out).

  7. zaki15 says:


    Even we applied this RU we still receive the 4999 event about MSExchangeServicesAppPool that crashes 🙁

    Do you have any idea?

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