Category Archives: Uncategorized

Update Rollup 23 for Exchange Server 2010 SP3

I was a bit surprised finding this one in my mailbox this morning, but Microsoft has released Update Rollup 23 for Exchange 2010 SP3. It’s a security update, and it solves the vulnerability that’s described in CVE-2018-8302 (Exchange memory corruption vulnerability).

A couple of things to be aware of:

  • This update is available via Windows Update and as such can be installed automatically.
  • The Visual C++ 2013 Redistributable package is now a required component. You can download this from
    If it’s not installed, a pop-up warning will appear:
  • If you run the update manually, make sure you use evelated privileges (‘Run as Administrator’). Since you cannot run a .MSP file this way, open a command prompt with elevated privileges and start the Update Rollup from the command prompt. If you don’t use elevated privileges the update won’t install correctly, but doesn’t show a warning in this case. The result is that OWA and ECP might stop working.

Update Rollup 23 is available via the Download Center:

As always…. please test before updating your production environment!

Dutch and Belgian Community Event on February 22

On February 22 the Belgian and Dutch messaging and collaboration experts are organizing a community event. Join MVPs like Jaap Wesselius, Dave Stork, Michel de Rooij, Steven Van Houttum and Michael Van Horenbeeck along with well-respected experts such as Thomas Verwer, Kay Sellenrode and more for this first “interland” between the Belgian E-Communications & Collaboration Community and their Dutch counterpart(s). We will start the evening with an introduction by Etan Basserie, a Program Manager from the Azure AD Team at Microsoft in Redmond.

It will be an evening full of technical deep-dives and interesting discussions.
Fujitsu Netherlands has been so kind to allow us to host our collective event in their offices in Maarssen. You can find the Fujitsu offices at ‘Het Kwadrant 1, 3606 AZ, Maarssen’.

The agenda is as follows:

  • 6PM – 6:30PM: Welcome, drinks and food
  • 6:30PM – 7:00PM: Introduction/Keynote by Etan Basseri (Identity Engineering, Microsoft)
  • 7:00PM – 7:50 PM: “Still running Exchange 2010? Now what?” A sessions by Jaap Wesselius and Kay Sellenrode discussing your options, best practices and pitfalls when migrating to Exchange 2016 or Office 365. Or in other words, why or why not using Exchange 2016 in an Exchange 2010 hybrid environment.
  • 8:00PM – 8:30PM: Introduction to “HelloDoor” by HelloDoor.
  • 8:30PM – 9:30PM: “Securing Exchange Online”. This session presented by Dave Stork will cover security options to prevent spoofing of email, tools to prevent data leakage and auditing solutions. Further topics will be EOP, ATP, SPF, DKIM, DMARC, TLS, RMS and DLP to use a few acronyms. Dave’s focus will be on Exchange Online, but a lot of topics can also be used in Exchange on-premises.
  • 9:30PM-10PM: Closing drink(s) and farewell

You can register at the following meetup site:
Hope to see you all there!

Exchange 2016 CU7 and Exchange 2013 CU18

Microsoft has released its quarterly updates for Exchange:

  • Exchange 2016 CU17.
  • Exchange 2013 CU18.

It has been quiet around these updates, and they do not bring a whole lot of features.

Important to note is that the minimum Forest Functional Level (FFL) has been raised to Windows Server 2008 R2. Personally I think this is an indication that more exciting stuff is along the way, especially around Exchange 2016 (my personal expectation, don’t shoot the messenger :-))

There are schema changes in Exchange 2016 CU7, so when installing this update you have to execute the following commands:

Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
Setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
Setup.exe /PrepareDomain /IAcceptExchangeServerLicenseTerms

When it comes to the .NET Framework, Microsoft is working on a new .NET Framework release (version 4.7.1). The upcoming quarterly update of December 2018 will support this version of the .NET Framework.

More information (well, not a lot more) can be found here: