Microsoft releases updates for Exchange 2007, 2010, 2013

Today, Microsoft released its latest updates for Exchange 2007, 2010 and 2013.

The updates for Exchange 2007 and 2010 mostly evolve around the Daylight Saving Time changes and a bunch of fixes for the latter version.

Cumulative Update 6 for Exchange 2013 doesn’t introduce any new feature or feature changes, but I’m happy to see that the Hybrid Configuration Wizard bug – which caused the HCW to fail – is now included by default. An Interim Update was already available, but it’s nice to see it included into the full build.

Along with a bunch of other fixes, Cumulative Update 6 now also closes the gap with Office 365 when it comes to Public Folder performance and scalability: you can now also deploy up to 100,000 public folders on-premises. Along with this change, there are some other (minor) behavioral changes which Microsoft outlined beautifully here.

For more information on these updates, have a look at the following announcements for Microsoft:

Exchange 2013

Microsoft releases Exchange 2013 Cumulative Update 5 and Exchange 2010 Update Rollup 6

Today, Microsoft released Cumulative Update 5 for Exchange 2013 and Update Rollup 6 for Exchange 2010.

Exchange 2013 Cumulative Update 5

Next to a ton of bug fixes, Microsoft made changes to a few components including:

  • Offline Address Book generation
  • Hybrid Configuration Wizard

Except for the above changes, it looks like CU5 will mostly consist of fixes. By the looks of it and as Tony Redmond already pointed out CU5 promises to be a stable release. Whether it will stay that way is something only time will tell…

Installing Cumulative Update 5

Installing CU5 is no different from older versions. You can also immediately upgrade from any previous version of Exchange 2013 to CU5. There is no requirement to install SP1 (a.k.a. CU4) first.

After installation, Microsoft warns there might be a Managed Availability probe which went into overdrive and repeatedly restarts a newly added service called the Microsoft Exchange Shared Cache Service. However, this service isn’t used in CU5 (planned for the future?) and as such there is no impact at all.

However, if you are worried about your application log filling up with events from Managed Availability, you can disable the probe. More information can be found here.

This update also includes Active Directory changes, so you will be required to extend the AD schema. Given that you’re used to it by now, this shouldn’t present much of a problem. For more information on how to deploy a Cumulative Update, I suggest you have a look at the following article by ExchangeServerPro: 

Installing Cumulative Updates and Service Packs for Exchange Server 2013

You can download Cumulative Update 5 from here. The original release announcement is here.

Exchange 2010 Update Rollup 6

This update seems mainly to be a routine update to Exchange 2010. As expected, there are no major revelations except for a bunch of updates and fixes:

  • 2960652 Organizer name and meeting status field can be changed by EAS clients in an Exchange Server 2010 environment
  • 2957762 “A folder with same name already exists” error when you rename an Outlook folder in an Exchange Server 2010 environment
  • 2952799 Event ID 2084 occurs and Exchange server loses connection to the domain controllers in an Exchange Server 2010 environment
  • 2934091 Event ID 1000 and 7031 when users cannot connect to mailboxes in an Exchange Server 2010 environment
  • 2932402 Cannot move a mailbox after you install Exchange Server 2010 SP3 RU3 (KB2891587)
  • 2931842 EWS cannot identify the attachment in an Exchange Server 2010 environment
  • 2928703 Retention policy is applied unexpectedly to a folder when Outlook rule moves a copy in Exchange Server 2010
  • 2927265 Get-Message cmdlet does not respect the defined write scope in Exchange Server 2010
  • 2925273 Folder views are not updated when you arrange by categories in Outlook after you apply Exchange Server 2010 Service Pack 3 Update Rollup 3 or Update Rollup 4
  • 2924592 Exchange RPC Client Access service freezes when you open an attached file in Outlook Online mode in Exchange Server 2010
  • 2923865 Cannot connect to Exchange Server 2010 when the RPC Client Access service crashes

You can download Rollop Update 6 from here.

Microsoft’s original release announcements can be found here.

Blog Exchange Exchange 2013 News

Exchange 2013 Cumulative Update 3 and Exchange 2010 SP3 RU3 released

Microsoft just released it’s quarterly software updates for Exchange Server 2010 and Exchange Server 2013. You can download the latest updates through the following links:

Exchange 2013 Cumulative Update 3

After some issues with Cumulative Update 2, which had to be pulled and re-released, Microsoft put more effort into testing and validating CU3 before releasing it to the public. That is one of the reasons why it took a little longer than expected for CU3 to be available. A good thing which hopefully pays of in a stable update without any (major) issues! CU3 introduces a bunch of new features to Exchange 2013, amongst which are:

  • Improved experience for Group Management in EAC
  • Integration with Online RMS for on-premises-only deployments
  • Improved Admin Audit Logging

As you can see, there’s quite some new – and interesting – stuff in CU3, which makes it definitely worth taking a closer look at. I’m particularly interested in finding out more about the RMS Online integration (which is a good thing!). Next to a bunch of new features, there are also some important bug fixes in CU3:

  • KB2888315 Event 2112 or 2180 is logged when you try to back up a database in an Exchange Server 2013 environment
  • KB2874216 Security issue that is described in Security Bulletin MS13-061 is resolved by an Exchange Server update
  • KB2902929 You cannot forward an external meeting request in an Exchange Server 2013 environment
  • KB2890814 No redirection to the Outlook Web App URL for Exchange Online users in an Exchange hybrid deployment
  • KB2883203 Exchange Server 2013 restarts frequently after Cumulative Update 2 is installed

A complete list of the most important bug fixes can be found here.

Deploying CU3

Deploying CU3 is similar to deploying previous CUs. Just like these previous CUs, CU3 also includes Active Directory schema updates. For more information on how to deploy a Cumulative Update, have a look at Paul Cunningham’s blog here.

How about Exchange 2013 Service Pack 1?

As a side-note to the release is that Microsoft previously announced that Exchange Server 2013 Cumulative Update 4 would be released as Service Pack 1. Taking the three-month cadence in which Cumulative Updates are expected to be released, puts Service Pack 1 to be released around the February/March 2014 timeframe – that is assuming the CU release cadence is respected. This is a little earlier than I anticipated, to be honest. I expected SP1 not to be released until at the Microsoft Exchange Conference in April (which – now I come to think of it is merely a month later). I, for one, am looking forward to “SP1”, usually this is a milestone that many companies wait for before deploying a new server product like Exchange. Traditionally, Service Packs were used to introduce a bucket of new features to the product along with some other improvements. Given that each Cumulative Update so far has added functionality, I wonder if SP1 (Cumulative Update 4) will generate the same impact as it has done with previous releases…

Exchange 2010 SP3 Update Rollup 3

This latest Update Rollup for Exchange 2010 Service Pack 3 contains a rather long list of bug fixes. Amongst these fixes, I found the following ones to stand out, mainly because I faced them a few times, myself:

  • KB2839533 RPC Client Access service freezes in an Exchange Server 2010 environment
  • KB2887609 Hybrid Configuration wizard does not display the Domain Proof of Ownership list in an Exchange Server 2010 SP3 environment

A complete list of the most important fixes, can be found here. (note: content of this link may not yet be available) Have fun!

Blog Exchange 2013 News

Microsoft releases a bunch of Rollup- and Security updates for Exchange

Moments ago, Microsoft released a bunch of Rollup Updates and (critical) security updates for Exchange:

  • Update Rollup 11 for Exchange Server 2007 SP3
  • Update Rollup 7 for Exchange Server 2010 SP2
  • Update Rollup 2 for Exchange Server 2010 SP3
  • Exchange Server 2013 RTM CU1 MSRC Security bulletin MS13-061
  • Exchange Server 2013 RTM CU2 MSRC Security bulletin MS13-061

By now, you should be familiar with the “traditional” way of how the Rollup Updates work for Exchange 2007 and 2010. New, however, are the security updates for Exchange 2013. As announced before, these security updates only have a limited scope within which they are supported.

As such, you’ll have to make sure that you are running either of the following Exchange 2013 versions:

  • Exchange 2013 RTM CU1
  • Exchange 2013 RTM CU2 v2

In case you’ve missed it: Yes, you need version 2 of CU2 for Exchange 2013 installed.

For more information on the updates, have a look at the original announcement here

Security Update MS13-061

It seems that Oracle is once to blame for the critical security update, which has already been announced a few days ago. As described on the Security Bulletin page, the vulnerability would allow to remotely execute code on your Exchange Servers.

In fact, there are multiple vulnerabilities of which 2 again have to do with WebReady Document viewing (just like earlier this year). The third vulnerability is because the feature called “Outside In” is used in DLP.

I haven’t had the opportunity to read more about it, but if you want the original announcement has been updated with more information:

Happy updating…!

Exchange 2013

A summary of Exchange 2013 RTM Cumulative Update 1

A few hours ago, Microsoft (finally) released Cumulative Update 1 (CU1) for Exchange 2013 RTM. Many of us have been waiting for this update as it was the last prerequisite standing in the way of upgrading to Exchange 2013 when you already had Exchange running prior.

I’m pretty sure that over the course of the next few weeks, we will be seeing lots of interesting new information coming out. For now, we’ll have to settle with Microsoft’s promise to publish the release notes + updated documentation anytime soon. As Bharat Suneja already mentioned, it’s scheduled to be release on the 3rd of April:


Where to get it?

First things, first. The newer bits are available from the following link:

Yes, you’re not dreaming. It’s 1.3GB. How is that possible? Simple. Cumulative Updates are quite different from Update Rollups. They are entire new builds of the product that don’t require a prior version to be installed. Hence the size. For more information on this new “update strategy”, have a look here.

What’s new?

The CU is “huge”. And I don’t mean that literally (although it’s literally huge as well). Next to a lot of fixes (that should’ve made it in RTM to be honest), will definitely make your life running Exchange 2013 a lot easier.

Next to that, there are some things that have changed and have been added. To name a few:

Blog Exchange 2013

New Exchange 2007/2010 Rollup Updates released!

Today, Microsoft released the following updates for Exchange 2007 and Exchange 2010:

  • Exchange 2010 Service Pack 2 Update Rollup 6 (KB2746164)
  • Exchange 2007 Service Pack 3 Update Rollup 10 (KB2788321)

Exchange 2010 Service Pack 2 Update Rollup 6

This updates contains many, many fixes amongst some quite important ones! However it’s still not the Exchange 2013 coexistency-update you have all been waiting for! Rumors are, however, that Service Pack 3 is waiting just around the corner…

I’ve highlighted some of my personal favorite fixes in this release by going through the list. I will dive deeper into it when I had the chance to review them more thoroughly.

Fixes/updates included in the Update Rollup are:

  • 2489941 The "legacyExchangeDN" value is shown in the "From" field instead of the "Simple Display Name" in an email message in an Exchange Server 2010 environment

  • 2717453 You cannot move or delete a folder by using Outlook in online mode in an Exchange Server 2010 environment

  • 2733608 Corrupted Japanese DBCS characters when you send a meeting request or post a reply to a posted item in a public folder in an Exchange Server 2010 environment

  • 2734635 Folder-associated information (FAI) items are deleted when you run the New-InboxRule cmdlet or change Inbox rules in an Exchange Server 2010 environment

  • 2737046 AutoPreview feature does not work when you use Outlook in online mode in an Exchange Server 2010 environment

  • 2741117 High CPU utilization by Microsoft Exchange Replication service on Client Access servers in an Exchange Server 2010 environment

  • 2746030 Incorrect ExternalURL value for EWS is returned by an Exchange Server 2010 Client Access server

  • 2750188 Exchange Service Host service crashes when you start the service on an Exchange 2010 server

  • 2751417 Synchronization fails if you sync an external device to a mailbox through EAS in an Exchange Server 2010 environment

  • 2751581 OAB generation fails with event IDs 9126, 9330, and either 9338 or 9339 in an Exchange Server 2010 environment

  • 2760999 "The signup domain ‘org’ derived from ‘<TenantDomainName>.org’ is not a valid domain" error message when you use the Hybrid Configuration wizard in an Exchange Server

  • 2776259 Msftefd.exe process crashes if an email attachment has an unexpected file name extension or no file name extension in an Exchange Server 2010 environment

  • 2779387 Duplicated email messages are displayed in the Sent Items folder in a EWS-based application that accesses an Exchange Server 2010 Mailbox server

  • 2783586 Name order of a contact is displayed incorrectly after you edit the contact in an Exchange Server 2010 environment

  • 2783631 User-Agent field is empty when you run the Get-ActiveSyncDeviceStatistics cmdlet in an Exchange Server 2010 SP2 environment

  • 2783633 You cannot move or delete an email message that is larger than the maximum receive or send size in an Exchange Server 2010 environment

  • 2783649 Private appointment is visible to a delegate in an Exchange Server 2010 environment

  • 2783771 Mailbox on a mobile device is not updated when EAS is configured in an Exchange Server 2010 environment

  • 2783772 Edgetransport.exe process crashes after a journal recipient receives an NDR message in an Exchange Server 2010 environment

  • 2783776 You cannot perform a cross-premises search in a mailbox in an Exchange Server 2010 hybrid environment

  • 2783782 Error message when you use Scanpst.exe on a .pst file in an Exchange Server 2010 environment

  • 2784081 Store.exe process crashes if you add certain registry keys to an Exchange Server 2010 Mailbox server

  • 2784083 Week numbers in the Outlook Web App and Outlook calendars are mismatched in an Exchange Server 2010 environment

  • 2784093 SCOM alerts and event ID 4 in an Exchange Server 2010 SP2 organization that has Update Rollup 1 or later

  • 2784566 Exchange RPC Client Access service crashes on an Exchange Server 2010 Mailbox server

  • 2787023 Exchange Mailbox Assistants service crashes when you try to change a recurring calendar item or publish free/busy data in an Exchange Server 2010 environment

  • 2793274 A new option is available that disables the PermanentlyDelete retention action in an Exchange Server 2010 organization

  • 2793278 You cannot use the search function to search for mailbox items in an Exchange Server 2010 environment

  • 2793279 Exchange Server 2010 does not restart when the Microsoft Exchange Replication service freezes

  • 2793488 Internet Explorer freezes when you connect to the OWA several times in an Exchange Server 2010 environment

  • 2810616 Email message delivery is delayed on a Blackberry mobile device after you install Update Rollup 4 for Exchange Server 2010 SP2

  • Have a look at the following page for the official announcement:


Exchange 2007 Service Pack 3 Update Rollup 10

Compared to Update Rollup 6 for Exchange 2010 SP2, this update turns pale… There seems to be only a single (public) fix. Of course, one could argue that that might be a good thing of course!

Blog Exchange

Microsoft Released Exchange 2010 SP2 Update-Rollup 5 v2

After the latest debacle from Microsoft where Exchange 2010 SP2 UR5 got pulled due to a bug, Microsoft re-released the UR as version 2.

For more information on the UR, have a look at the following KB-article:

However, I would wait a few more days (even weeks) before deploying this update. It’s not that I do not trust Microsoft or the Exchange Product Group, but – for once – I’d like to make sure we’re not running into any other unexpected issues. After all, Microsoft has had a bad track record with the stream of latest Update Rollups of which some even had to be pulled more than once.

Additionally, make sure to read Tony Redmond’s blog on this subject. There’s an interesting analysis of the different fixes as well as some other thoughts worth reading through:

Note   next to Exchange 2010 SP2 UR5, Microsoft also released UR9 for Exchange 2007 SP3 ( and UR7 v3 for Exchange 2010 SP1 (

Read the original announcement from the Exchange product team here:

Blog Exchange