Exchange 2019 / 2016 Security Update March 2024

After releasing CU14 for Exchange Server 2019, the ‘normal’ period for Exchange security patches is still in progress. Here you can find the offical announcement of March Security Patch 2024. As already known before only latest CUs are supported for this security patch. See the download links: Update processes did not change at all, so …

Exchange Online mailbox apps check via PowerShell

Some days ago I got a ticket where someone could not load his calendar in Microsoft Teams. Outlook worked fine the only thing was Out of Office Notification, also did not work. After some research I found the solution by activating EWS on this specific mailbox. One our later everything was fine. You can find …

Exchange Online Enforcement Pause

Lot of people already know the new Microsoft strategy for blocking outdated Exchange OnPrem Versions in hybrid environments. See this old article which describes the most important informations, see also the timeline for throttling and blocking. https://techcommunity.microsoft.com/t5/exchange-team-blog/update-on-transport-enforcement-system-in-exchange-online/ba-p/3827774 After some time the Exchange Teams announced an new article about pausing this enforcement with throttling and blocking. …

Exchange SU Security Update November 2023

One month after realesing Exchange October update Microsoft launched another SU for November. Some CVE are patched and a “new” Feature is activated. Original blogpost can be found here. SUs are available for the following specific versions of Exchange Server: The process of updating did not change during this year, so nothing special here. Only …