Microsoft Exchange and Active Directory Blog
The Chrome browser reports the following error for websites running on an IIS server on Windows Server 2016: ERR_SPDY_INADEQUATE_TRANSPORT_SECURITY In this case, Chrome does not allow the error to be ignored. The problem also occurs with Exchange 2016 servers installed on Windows Server 2016. The problem lies in old cipher suites and ... Read more
Part 1 has already covered the preparations for Let's Encrypt certificates and Exchange 2010. This article therefore builds directly on Part 1. In part 1, the Exchange organization was adapted accordingly, so part 2 continues directly with the configuration of the public DNS. I forgot to mention that the ... Read more
Certificates from Let's Encrypt are becoming increasingly popular, which is hardly surprising as the certificates are free and there are simple clients to obtain the certificates. Let's Encrypt certificates are only valid for 3 months, but the available clients take care of renewing the certificates. Exchange 2016 can even be managed with a small PowerShell ... Read more
If anyone is running an Exchange 2016 server with the Edge Transport role on Windows Server 2016, you should read the post from the Exchange Team Blog, it says: Today we are announcing an update to our support policy for Windows Server 2016 and Exchange Server 2016. At this time we do not recommend customers install ... Read more
I have now received several emails with questions about the Exchange 2016 update process. There are also always various questions in the comments to articles that refer to updates. So here is a short how-to on how to install Exchange updates. What is a Cumulative Update for Exchange? Updates for Exchange are called ... Read more
I stumbled across an interesting workaround for Sophos UTM and Let's Encrypt certificates today: https://github.com/rklomp/sophos-utm-letsencrypt René has taken the trouble to create a script that can automatically renew Let's Encrypt certificates on Sophos UTM. The implementation is relatively simple and worked right away in my test environment. Since the ... Read more
New updates have been released for all Exchange Server versions. Click here to download directly: Exchange Server 2016 CU5 Exchange Server 2013 CU16 Exchange Server 2010 SP3 UR17 Exchange Server 2007 SP3 UR23 Click here for details of the changes: Exchange Server 2016 CU5 Exchange Server 2013 CU16 Exchange Server 2010 SP3 UR17 Exchange ... Read more
In this blog post, Thomas Shinder from Microsoft presented the new "Microsoft Security Guide". The article is quite interesting and well worth reading. I was particularly taken with the last section. It says: The Security Update Guide development API can be used to create a report in CVRF format. To use this API, click the ... Read more
Today an important update was released for the following Exchange Server versions: Microsoft Exchange Server 2013 Service Pack 1 Microsoft Exchange Server 2013 Cumulative Update 14 Microsoft Exchange Server 2016 Cumulative Update 3 It is interesting to note that the Exchange versions are no longer completely up-to-date. There is already CU4 for Exchange 2016, as well as CU15 for ... Read more
Here is an interesting article about two ActiveSync bugs that are currently occurring in connection with Apple iOS: How to hunt down an EAS bug The article is very interesting, as it goes deep into error analysis. Very worth reading from my point of view. I can understand both problems and am also waiting for an update, although ... Read more
