Merging Microsoft 365 tenants - a guideNew!!
Microsoft 365 services are now widely used. Many companies, large and small, use one or more of the available apps, such as Exchange Online, Teams, OneDrive for Business, or SharePoint Online. Of course, the "bouquet of flowers" is much broader than that. Of course, the world does not stand still, but keeps turning. And it […]
Email encryption, but easy - with Microsoft Purview!New!!
When people talk about email encryption in general, they usually mean S/MIME. PGP is another alternative, but due to its greater complexity, it is usually used more in the private sphere.Both variants are quite complex to set up. In the case of S/MIME, it can also be quite expensive if automatic management is desired. Microsoft […]
Active Directory Certificate Authority - add issuer information
A customer approached me and asked whether it would be possible to store additional information in his certification authority. Specifically, company information such as name and address would be stored. This would eliminate the need to enter this information manually each time a certificate is requested. The aim was to increase the internal trustworthiness of […]
Beware of pitfalls - do you have Microsoft's security baselines under control?
I regularly have the “pleasure” of installing new domain controllers (DCs), for example when new operating system versions are released. Currently, this is Windows Server 2025. I have already done this successfully in various environments. However, in one environment, I encountered a problem that could potentially have major implications. I will briefly describe this below. […]
Use Teams for audio/video only? Works!
Microsoft Teams is a comprehensive collaboration solution for businesses. As such, it offers a wealth of features for this purpose, such as meetings, data storage and joint editing, integration of additional solutions such as Kanban plans, and much more. If a company wants to evaluate Teams, it will most likely be overwhelmed by all these […]
Separation of business units in Microsoft 365 - with Information Barriers!
In a company, there may be areas that, for whatever reason, are not allowed to exchange information with each other, e.g., highly sensitive data. Another example could be the strict separation of pilot scenarios in which different areas of the company are supposed to test certain functions, but mutual access is not permitted. In these […]
Hide Teams presence status to external contacts
Numerous guides and tools are now available for effectively securing a Microsoft 365 environment. This applies to both security aspects and compliance requirements. One often overlooked feature is the presence status. What is the presence status? The presence status (also "availability status") is a feature that indicates to other people whether you are currently available […]
Entra Connect Sync - OU- or attribute-based?
Many organizations use Active Directory for centralized user management within their IT infrastructure. When such a company introduces Microsoft 365, the question eventually arises as to whether and how objects from Active Directory should be synchronized with Entra ID (it is now possible to manage identities in the cloud, i.e., only in Entra ID. However, […]
Windows Server Summit | Recap & what's next
And what am I supposed to do with all this news now? With Windows Server 2025, there have been some significant changes under the hood. Now, the usual round of questions and concerns will likely begin - DieUltimately, everyone must answer these questions for themselves. The following scenarios are intended to help identify added value […]
Windows Server Summit | Credentials
Local infrastructure no longer exists for Microsoft. Everything revolves around the cloud. A few years ago, that may indeed have been the case. Gradually, all certifications for traditional server products were phased out, including the sorely missed Messaging Administrator (Exchange Server). Now, the truth lies somewhere in between – we live in a hybrid world […]
