Microsoft Exchange and Active Directory Blog
When migrating from Exchange 2010 / 2013 to Exchange 2016, there may be problems with Autodiscover in connection with Kerberos. The problems range from permanent queries of the login information in Outlook to a complete crash of Outlook when a mailbox is moved to an Exchange 2016 server. When can the problem occur? The problem ... Read more
In this article, I already pointed out that Office 365 will only support TLS 1.2 from October 2018. However, before switching to the current TLS 1.2 version, the clients / servers with which the local Exchange server does not yet communicate via TLS 1.2 should be identified. The following small script can be used ... Read more
Three detailed articles on Exchange Server and TLS 1.2 have been published on the Exchange Team Blog. The articles are not only very worth reading, but also have an important background: From October 2018, Office 365 will require TLS 1.2 and will not accept mails from servers that only support TLS 1.0 or TLS 1.1. In plain language ... Read more
This is the fourth part of the series "Exchange 2016 Hybrid Mode with Office 365". In this part, Exchange Hybrid Mode is activated and initial tests are carried out. Here are the links to the previous articles: Exchange 2016: Hybrid Mode with Office 365 (Part 1) Exchange 2016: Hybrid Mode with Office 365 (Part 2) Exchange 2016: ... Read more
I was once again led astray. I had installed an update for Exchange when a short time later the Outlook app for iOS and Android stopped working. The app was no longer synchronizing data and there were no error messages. As I had carried out an update shortly before, I suspected this at first. ... Read more
Critical updates for Exchange Server: There is a vulnerability in all supported Exchange Server versions that allows attackers to execute code on the Exchange Server using specially crafted mail. Microsoft describes the problem here: CVE-2018-8154 | Microsoft Exchange Memory Corruption Vulnerability A remote code execution vulnerability exists in Microsoft Exchange software when the software fails ... Read more
This is the third part of the series "Exchange 2016 Hybrid Mode with Office 365". This part deals with the synchronization of local user accounts to Office 365 or Azure Active Directory. Here are the links to the previous articles: Exchange 2016: Hybrid mode with Office 365 (Part 1) Exchange 2016: Hybrid mode with Office ... Read more
Part 1 of this article series only dealt with the test environment for an Exchange 2016 / Office 365 hybrid scenario. This part now deals with the preparation of Office 365 and the frankysweb.org domain. What is hybrid mode I still need to explain a little about hybrid mode: What is hybrid mode anyway? Read more
I have now received a lot of inquiries about Exchange and hybrid mode with Office 365. I have therefore decided to focus more on the topic of Office 365 in conjunction with local Exchange servers in the future. Here is the first article on Exchange 2016 in conjunction with Office 365 and hybrid mode. In ... Read more
The following mail reached me a few days ago and I think the solution could also help others. It concerns a single Exchange 2016 server on Windows Server 2012 R2. Here is an excerpt of the problem from the email: But now I'm at the end of my tether and wanted to find out if ... Read more
