Microsoft 365 Migrations | Part 6: Choose the migration approach
Lesedauer 13 MinutenIn the previous post, I outlined various approaches for planning a migration in general and discussed the key factors involved. However, in my projects, I’m repeatedly asked a specific question about the actual process: So how exactly should we go about this? Do we move everything over in a single weekend, or do we need […]
The Microsoft Cloud can't handle mass emails! ...Or can it...?
Lesedauer 9 MinutenEmail remains a widely used means of communication—even though it has since been surpassed by instant messaging solutions such as Teams, Slack, and many others. Many companies use Exchange Server, Exchange Online, or a combination of the two (known as a hybrid deployment) for this purpose. At some point, the need to send bulk emails […]
Microsoft 365 Migrations | Part 5: Technical Target Design
Lesedauer 7 MinutenOnce all organizational and legal requirements have been clarified, we can finally get started on the technical side. And this is no small task—depending on the scale, the systems and applications involved, and the planned approach, it can become very complex! Typically, adjustments to the project plan are made at this stage, if not earlier. […]
Scrooged - effective protection against Ghost Sender in Exchange Online
Lesedauer 8 MinutenExchange Online is quite flexible when it comes to message flow. For example, emails can be delivered directly to Exchange Online from external sources or routed through an upstream email gateway. The latter is not uncommon in companies. In the past, a third-party filtering solution may have been purchased and deployed for Exchange Server, since […]
Watch out! How sending from aliases can cause email filter policies to fail
Lesedauer 4 MinutenSending from an alias is a great feature! Gone are the days when users had to use multiple mailboxes (or set up a workaround via the IMAP protocol) if they wanted or needed to use multiple sender addresses for their own mailbox. This might be necessary in the following scenarios, for example: While Exchange Server […]
Should my Microsoft Cloud Administrator account be licensed? If so, when?
Lesedauer 5 MinutenOver the years, several best practices for managing administrator accounts have become established, particularly in connection with the Microsoft Cloud: “Security-related licenses” typically refer to licenses for Entra ID features, such as conditional access, Privileged Identity Management, etc. However, if your own productive user account already has such a license, the administrator account does not […]
Windows Server Summit 2026 | Part 19: Failover clustering: heart of the private cloud and datacenter
Lesedauer 4 MinutenAs a rule, servers are not deployed individually but in clusters to ensure high availability and to be prepared for the failure of individual systems. In addition, such clusters allow the load to be efficiently distributed across multiple systems. The core of such clusters is typically the “failover clustering” server feature. This allows multiple servers […]
Windows Server Summit 2026 | Part 18: Let's talk storage: NVMe, ReFS, and what's coming next
Lesedauer 3 MinutenThere have been significant developments in the area of storage for Windows Server. Microsoft is finally responding to the enormous performance gains in this area and now offers modern connection protocols. In addition, there are also several new features related to file systems. This article presents all the new features in the area of storage […]
Windows Server Summit 2026 | Part 17: Modernize AD for hybrid identity in Windows Server 2025
Lesedauer 4 MinutenActive Directory is the most important server role in Windows Server and is used by many organizations for user management and authentication. When combined with Entra ID, the user directory in the Microsoft Cloud, it also allows you to create hybrid identities—that is, user accounts that can be used in both environments. Active Directory itself […]
Windows Server Summit 2026 | Part 16: Future-proofing PKI with AD CS in Windows Server 2025
Lesedauer 3 MinutenThe Active Directory Certificate Service (AD CS) is one of the core services of Active Directory. It enables the use of certificates for a wide variety of application scenarios. For example, it allows organizations to completely eliminate the use of passwords for user logins. At the same time, AD CS is a very static construct […]
