Blog Cumulative Update September 2025

Das Blog Cumulative Update für September 2025 (CU0925) fasst interessante Themen rund um Cloud-Sicherheit, Exchange, Microsoft 365, Microsoft Teams, Copilot & AI, Entra und mehr des Monats September 2025 zusammen.

Allgemein

• [P] Microsoft Products Reaching End of Support for 2025
• Cybersecurity: What Every Business Leader Needs to Know Now
• Microsoft Cost Management Updates What’s New & How to Save More in Azure

AI

• Where the AI Budget Actually Goes
• Microsoft erweitert den Researcher Agent um eine LLM Auswahl und integriert damit Claude-AI – Einsatz in Deutschland möglich?
• When AI Takes Your Job
• Microsoft is simplifying its Copilot offerings with reduced prices
• Microsoft 365 Copilot Prerequisites: What You Need to Know

Exchange Server

• [P] Microsoft Exchange Server Support Scripts
• [P] Outlook License Requirements for Exchange Features
• Dedicated Hybrid-App – FAQ
• Exchange Reporting Script

Microsoft 365 | OneDrive | Exchange Online | und mehr

• [P] Microsoft 365 Online Services – Product Terms
• [P] Office 365 URLs and IP address ranges
• Why OneDrive Is More Than Just Cloud Storage
• Calendar Sharing In Exchange Online After Multi-Tenant Organizations (MTO) Is In Place
• Microsoft Places für Datenschützer und Betriebsräte- ein genauere Blick in die Funktionen
• My Issues With High Volume Email

Microsoft Teams

• [P] Teams Devices Deployment Playbook
• [P] Microsoft Teams Feedback Portal
• [P] Security and Compliance in Microsoft Teams
• Are Microsoft Teams Channels Overrated?
• Teams group chats get a new Notes tab
• How to use Shift in a Teams Call Queue

Entra ID | Intune

• One Token to rule them all – obtaining Global Admin in every Entra ID tenant via Actor tokens
• Onboarding New Users In an Entra ID Passkey World
• Categorizing Service Principals in Entra
• What’s the Best Way to Manage Guest Accounts?

Cloud | Cloud Sicherheit

• [P] Microsoft 365 security recommendations with PowerShell script
• [P] Zero Trust Illustrationen für IT-Architekten und -Implementierer
• Microsoft Security Community Blog
• Microsoft seizes 338 websites to disrupt rapidly growing ‘RaccoonO365’ phishing service

Microsoft Learning

• [P] MCT Lounge
• Warum wir als MCTs bei In‑Person Events wie den lokalen MCT Summits dabei sein sollten

Schule | Lernen

• Kultusminister scheitern digital: Eigenentwicklungen floppen, EdTech bleibt ungenutzt
• Immer mehr Bundesländer führen KI-Chatbot Telli an ihren Schulen ein
• Microsoft 365 Education: Apps im Überblick [PDF-Download]
• Microsoft 365 Education: Grundausstattung für Lehrkräfte

Microsoft Learn | Tech Community | Knowledge Base

• [P] Microsoft 365 Productivity Illustrations
• Configure mail flow using connectors in Exchange Online
• Manage people data and related experiences from the Microsoft 365 admin center

Replay

• Juli 2019: Office 365 Message Attribution
• November 2023: Unable to permanently delete mail enabled user. The mail enabled user has litigation hold or In-Place hold applied on it. Please remove the hold before trying to delete
• Januar 2023: Enable progress bar in PowerShell 7

Podcast Empfehlungen

• [P] Cloud-Chroniken
• [P] Thomas’ Tech Talk
• [P] Talk Microsoft 365
• [P] Collab Talk: #MsftBuzzChat Podcast series

Tools

• EvergreenAdmx
• IPv4 Address CIDR Range Reference and Calculator
• App Governance Accelerator – Entra ID Enterprise Application Governance
• Mailscape 365 – Exchange Online Monitoring und Reporting
• Mailscape – Exchange Monitoring und Reporting
• Active Directory xRay Script
• Teams Lab Tools List
• Microsoft Azure, Cloud and Enterprise Symbol / Icon Set – Visio stencil, PowerPoint, PNG, SVG