Neue Sicherheitsupdates für Exchange Server (Dezember 2025)

Kurz vor Weihnachten gibt es noch einmal Sicherheitsupdates für alle Exchange Server Versionen inkl. Exchange 2016 und Exchange 2019. Eigentlich ist nur noch Exchange Server SE im Support und erhält Updates, aber es gibt eine Ausnahme. Kunden mit aktiven ESU für Exchange Server erhalten aktuell noch Sicherheitsupdates. Ich verlinke hier daher nur noch Exchange Server … Read more

Exchange Server SE is available

Microsoft has released the new Exchange Server SE version. There are no functional changes in the new version compared to Exchange Server 2019 CU15: The following points change compared to Exchange Server 2019 CU15: Since Exchange SE initially only switches the license to the subscription model, an Exchange Server 2019 can be installed directly via ... Read more

StalledDueToSource_DiskLatency for Exchange MoveRequests

I have already reported on the StalledDueToSource_DiskLatency error during Exchange migrations. At that time, I was able to resolve the error by resolving a spanned volume across several disks. During another Exchange Server 2016 to Exchange 2019 migration, the problem occurred again. Here, too, the StalledDueToSource_DiskLatency error only occurred with the move requests of the ... Read more

Exchange Server Feature Flighting

With Exchange Server 2019 CU15, a new function called "Feature Flighting" was introduced. In future, Feature Flighting will enable the administrators of an Exchange organization to control which new Exchange features are activated in the company and when. Microsoft hopes that Feature Flighting will provide an easier way to make new functions available in the company than having to ... Read more

HowTo: Migration Exchange 2016 to Exchange Server 2019 CU15 (Part 1)

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

Preparation for the Exchange Server SE migration

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

Exchange Server SE: How can I upgrade to the Subscription Edition?

The end of support for Exchange Server 2019 and 2016 is approaching. Support for both versions will end on October 14, 2025, from which date only Exchange Server SE (Subscription Edition) will be supported. However, upgrading to Exchange SE is much easier this time than before, at least if Exchange Server 2019 is already in use. Here is a ... Read more