Microsoft Exchange and Active Directory Blog
The update rollup 8 (KB2986475) for Exchange Server 2010 SP3 released yesterday seems to cause problems for Outlook. There are more and more reports that calendar entries can no longer be saved, or that access to Sent Items and Inbox no longer works. OWA does not seem to be affected. If you have already installed the update and notice problems, ... Read more
I didn't really warm to the Sophos UTM 9.2 WAF in conjunction with Exchange 2013. In my opinion, there were too many things that didn't work as I expected. But Sophos UTM 9.3 is now available, so it's time for a new test. The environment is almost unchanged: It ... Read more
Today there are new updates for Exchange Server 2007, Exchange Server 2010 and Exchange Server 2013: Cumulative Update 7 for Exchange Server 2013 (KB2986485) UM language packs for Exchange Server 2013 CU7 Updaterollup 8 for Exchange Server 2010, Service Pack 3 (KB2986475) Updaterollup 15 for Exchange Server 2007 Service Pack 3 (KB2996150) So far there are still ... Read more
Currently there seems to be a bug in the Sophos UTM that prevents a TLS connection from being established. The log file of the sender's MTA then contains entries with the message "TLS handshake failed". Here is an example from Clearswift: There is also a message about this in the Sophos forum: https://www.astaro.org/local-language-forums/german-forum/54875-bug-9-210-20-smtp-send-receive.html Apparently ... Read more
The positive feedback on Exchange Monitor 1.0 has encouraged me to develop Exchange Monitor further. I realized that the previous design is not very good for a small monitoring tool. I therefore decided to change the design and the concept for the data. Here are the most important new features: ... Read more
The videos from the Microsoft Technical Summit 2014 in Berlin are available on Channel 9. A total of 46 videos on various topics are available there: .NET Compiler Framework "Roslyn" ASP.Net vNext closing keynote Alive and kicking: .NET vNext at a glance Authentication and single sign-on for mobile, web and desktop applications Automation 2.0 - data center automation in the public (Azure ... Read more
I have already received several inquiries about back pressure. When Exchange is under back pressure, mails are received or sent slowly or not at all. Often the following situation is described: Exchange is no longer sending or receiving mails and the event 15004 is logged, ... Read more
Currently the SChannel Fix (KB2992611) seems to cause problems with SQL and IIS servers. Various sources report problems connecting from Chrome to IIS servers that have installed the update. Exchange 2013 on Server 2012 R2 does not seem to have any problems with the update. OWA with Chrome and Internet Explorer work fine. Apparently in my ... Read more
In Exchange environments with DAG and multiple database copies, the databases should normally be distributed evenly across the database servers. However, this situation can change if a failover has occurred or the databases have been activated on other servers for maintenance purposes. At some point, you may then have a situation where all databases on a server are active ... Read more
The second day of the Microsoft Technical Summit 2014 in Berlin has come to an end for me. This is also the last day for me, because unfortunately I was a bit late and couldn't get a free place for the workshops on the third day. In the keynote, it was quite interesting to see how ... Read more
