Microsoft Exchange and Active Directory Blog
In the first part of this article series, I briefly introduced the environment, the Exchange 2019 server has now been installed and the configuration and migration can begin. The second part deals with the configuration of the installed Exchange 2019 server. Here is an overview of the environment: If it is a larger Exchange ... Read more
The current CU15 for Exchange Server 2019, like the CU14, has been released for Windows Server 2025. The CU15 supports the inplace upgrade to Exchange Server SE RTM. However, the Inplace Upgrade only supports the upgrade of the Exchange installation. The operating system cannot be upgraded via Inplace Upgrade. So if you want to upgrade from October 2025 ... Read more
I am now having problems updating to CU15 on the second Exchange 2019 CU14 server. The CU15 setup aborts in my environment on a Windows Server 2022 with January updates at step 4 of 16 with the following error: On the first server, I wasn't quite sure whether the server wasn't still ... Read more
The new Exchange Server version is expected this year. It makes sense to start working on the migration of existing Exchange 2016 servers to Exchange SE now, as the time window for the migration is short. However, this is not a problem if you prepare in good time. This article is about the migration of ... Read more
CU15 for Exchange Server 2019 was recently released, heralding the end of Exchange 2019 servers and the beginning of Exchange Server SE. This article is generally about preparing for the migration and the options for the introduction of Exchange Server SE. Background and facts Microsoft already recommends ... Read more
Today Microsoft released CU15 for Exchange Server 2019. CU15 is an important update for Exchange Server 2019: Firstly, it is the last CU to be released for Exchange 2019 and secondly, it brings Exchange 2019 onto the same code base as Exchange Server SE. After the installation ... Read more
Microsoft has now also released Exchange Server 2019 CU14 for Windows Server 2025. Originally, CU15 was to be released for Windows Server 2025 first, but this step has now been brought forward. The release of CU14 for Windows Server 2025 serves as preparation for the upgrade to Exchange Server SE. This means that existing Exchange Servers can now be upgraded to ... Read more
The latest Cummulative Update for Exchange Server 2019 has been postponed again Originally, CU 15 for Exchange 2019 was supposed to be released in December 2024, but the release was postponed to January 2025. On the last day of January, a message appeared on the Exchange Team Blog stating that CU 15 had been postponed again. The CU15 will be the ... Read more
I had already reported on the 1TB limit for Exchange Server 2019 Standard Server in a previous article. Exchange Server Standard Edition no longer mounts a database above a size of 1 TB. Unfortunately, this is often only noticed when it is too late. For example, if a database reaches the 1TB limit during the normal ... Read more
Here in the forum and on the Exchange Team Blog there are indications that the installation of the November update for Exchange Server 2016 / 2019 may cause problems. It seems that once again there are problems with servers with German or non-English operating systems when the January update for the Windows Server is installed. ... Read more
