Entra Connect Sync: Starting today, synchronization stops under version 2.5.79.0Starting September 30, 2026, Microsoft Entra Connect Sync will stop synchronizing if your sync server is running a version below 2.5.79.0. Micro…
... assemble into a PFX file. Problem: A certificate is delivered with separate files for the public key (CER, CRT) and the private key (KEY), but a combined file (PFX) is required.Task: Combine the separate files into a PFX…
Store M365 customer data in-country.On December 14, 2026, Microsoft will change the rules governing where your Microsoft 365 tenant data may reside. The trigger is a new setting called 'Store Microsoft 365 customer data in-c…
KB5002907 disables Office 2016 and 2019Since September 24 and 25, 2026, reports have been accumulating that the optional update KB5002907 is causing purchased full versions of Office 2016 and Office 2019 to lose their licens…
Step-by-step tutorials for Exchange, Teams, SharePoint, and all Microsoft 365 services.
View all guides →GDPR-compliant configuration, compliance settings, and best practices.
Compliance-Center →An overview of our latest projects and the underlying repository.
At the end of August, CERT-Bund published a figure summarizing the patch status of German mail infrastructure: Around 85 percent of on-premises Exchange servers in Germany are vulnerable to CVE-2026-62911.Microsoft closed th…
The yellow warning on the Conditional Access overview page doesn’t specify a number. It simply states that your policies protect more users than your licenses cover—and leaves you to deal with it. Anyone who then orders from…
What you need to decide by August 31!Starting October 1, 2026, Microsoft will begin disabling Exchange Web Services (EWS) in Exchange Online on a per-tenant basis. All tenants that have not taken action by then will be affec…
Prepare Hero Link: DefaultMainLinkScope ...A single file in SharePoint accumulates a dozen sharing links over months: one for the project team, one for the external contractor, one anonymous from the previous year that no on…
What you need to reconfigure by November 3On November 3, 2026, Entra ID will stop processing membership rules using the memberOf operator. Microsoft will not delete the affected objects. They will remain in place with exactl…
How SPF, DKIM, and DMARC Work TogetherThe From header in an email is a plain text field. Any sender can write whatever they want in it, and that's exactly what attackers do in CEO fraud and invoice scams. Your domain then ap…
