Exchange RBAC Challenge: Restricting Admin Level Access to Selected Mailboxes
Hi Exchange Brain Trust, I'm looking to implement a restriction for a specific group of admins (let's say Service Desk L1 team) so they do not have administrative access to executive EXO mailboxes (e.g., email address removed for privacy reasons, email address removed for privacy reasons), while retaining access to all other mailboxes. I've explored built-in RBAC configurations, Administrative Units, and role assignments in Exchange, but haven’t found a solution that meets this requirement. Any guidance or suggestions would be greatly appreciated. Thanks in advance!
Error 0x8004de40
Hello, I have a new pc on Windows 11, when i try to connect my OneDrive it didnt work and give me this message : Error 0x8004de40. I try on my old PC on Windows 10 and it still work. I try to unistall / reinstall OneDrive To reinstall windows socket. I have no proxy I use TLS 1.0, 1.1 ,1.2 and 1.3 I dont know what to do next? Could you help me ?
Struggling to filter News from one site to another
Hello Community, simple usecase: I have multiple Sites in one hub called Intranet. My main hubsite is sites/intranet. I have another site called sites/IT. On that site, I've added a managed metadata coloumn to the pages library with tags like "information security", "AI", "Cybersecurity".... to tag my news on sites/IT Now, I would like to place a news webpart on sites/intranet, which filters for a) only news from sites/IT b) only news with the tag "cybersecurity". I cannot seem to find the correct coloumn to filter for, what am I doing wrong? I tried adding the "same" managed metadata coloumn to sites/intranet. "same" as in create a new coloumn, give it the same metadata choice and give it the same name. If thats the mistake, how do i really create a hub-wite Coloumn in SharePoint online? Thanks in AdvancePlanning your move to Microsoft Defender portal for all Microsoft Sentinel customers
In November 2023, Microsoft announced our strategy to unify security operations by bringing the best of XDR and SIEM together. Our first step was bringing Microsoft Sentinel into the Microsoft Defender portal, giving teams a single, comprehensive view of incidents, reducing queue management, enriching threat intel, streamlining response and enabling SOC teams to take advantage of Gen AI in their day-to-day workflow. Since then, considerable progress has been made with thousands of customers using this new unified experience; to enhance the value customers gain when using Sentinel in the Defender portal, multi-tenancy and multi-workspace support was added to help customers with more sophisticated deployments. Our mission is to unify security operations by bringing all your data, workflows, and people together to unlock new capabilities and drive better security outcomes. As a strong example of this, last year we added extended posture management, delivering powerful posture insights to the SOC team. This integration helps build a closed-loop feedback system between your pre- and post-breach efforts. Exposure Management is just one example. By bringing everything together, we can take full advantage of AI and automation to shift from a reactive to predictive SOC that anticipates threats and proactively takes action to defend against them. Beyond Exposure Management, Microsoft has been constantly innovating in the Defender experience, adding not just SIEM but also Security Copilot. The Sentinel experience within the Defender portal is the focus of our innovation energy and where we will continue to add advanced Sentinel capabilities going forward. Onboarding to the new unified experience is easy and doesn’t require a typical migration. Just a few clicks and permissions. Customers can continue to use Sentinel in the Azure portal while it is available even after choosing to transition. Today, we’re announcing that we are moving to the next phase of the transition with a target to retire the Azure portal for Microsoft Sentinel by July 1, 2026. Customers not yet using the Defender portal should plan their transition accordingly. “Really amazing to see that coming, because cross querying with tables in one UI is really cool! Amazing, big step forward to the unified [Defender] portal.” Glueckkanja AG “The biggest benefit of a unified security operations solution (Microsoft Sentinel + Microsoft Defender XDR) has been the ability to combine data in Defender XDR with logs from third party security tools. Another advantage developed has been to eliminate the need to switch between Defender XDR and Microsoft Sentinel portals, now having a single pane of glass, which the team has been wanting for some years.” Robel Kidane, Group Information Security Manager, Renishaw PLC Delivering the SOC of the future Unifying threat protection, exposure management and security analytics capabilities in one pane of glass not only streamlines the user experience, but also enables Sentinel customers to realize security outcomes more efficiently: Analyst efficiency: A single portal reduces context switching, simplifies workflows, reduces training overhead, and improves team agility. Integrated insights: SOC-focused case management, threat intelligence, incident correlation, advanced hunting, exposure management, and a prioritized incident queue enriched with business and sensitivity context—enabling faster, more informed detection and response across all products. SOC optimization: Security controls that can be adjusted as threats and business priorities change to control costs and provide better coverage and utilization of data, thus maximizing ROI from the SIEM. Accelerated response: AI-driven detection and response which reduces mean time to respond (MTTR) by 30%, increases security response efficiency by 60%, and enables embedded Gen AI and agentic workflows. What’s next: Preparing for the retirement of the Sentinel Experience in the Azure Portal Microsoft is committed to supporting every single customer in making that transition over the next 12 months. Beginning July 1, 2026, Sentinel users will be automatically redirected to the Defender portal. After helping thousands of customers smoothly make the transition, we recommend that security teams begin planning their migration and change management now to ensure continuity and avoid disruption. While the technical process is very straightforward, we have found that early preparation allows time for workflow validation, training, and process alignment to take full advantage of the new capabilities and experience. Tips for a Successful Migration to Microsoft Defender 1. Leverage Microsoft’s help: Leverage Microsoft documentation, instructional videos, guidance, and in-product support to help you be successful. A good starting point is the documentation on Microsoft Learn. 2. Plan early: Engage stakeholders early including SOC and IT Security leads, MSSPs, and compliance teams to align on timing, training and organizational needs. Make sure you have an actionable timeline and agreement in the organization around when you can prioritize this transition to ensure access to the full potential of the new experience. 3. Prepare your environment: Plan and design your environment thoroughly. This includes understanding the prerequisites for onboarding Microsoft Sentinel workspaces, reviewing and deciding on access controls, and planning the architecture of your tenant and workspace. Proper planning will ensure a smooth transition and help avoid any disruptions to your security operations. 4. Leverage Advanced Threat Detection: The Defender portal offers enhanced threat detection capabilities with advanced AI and machine learning for Microsoft Sentinel. Make sure to leverage these features for faster and more accurate threat detection and response. This will help you identify and address critical threats promptly, improving your overall security posture. 5. Utilize Unified Hunting and Incident Management: Take advantage of the enhanced hunting, incident, and investigation capabilities in Microsoft Defender. This provides a comprehensive view for more efficient threat detection and response. By consolidating all security incidents, alerts, and investigations into a single unified interface, you can streamline your operations and improve efficiency. 6. Optimize Cost and Data Management The Defender portal offers cost and data optimization features, such as SOC Optimization and Summary Rules. Make sure to utilize these features to optimize your data management, reduce costs, and increase coverage and SIEM ROI. This will help you manage your security operations more effectively and efficiently. Unleash the full potential of your Security team The unified SecOps experience available in the Defender portal is designed to support the evolving needs of modern SOCs. The Defender portal is not just a new home for Microsoft Sentinel - it’s a foundation for integrated, AI-driven security operations. We’re committed to helping you make this transition smoothly and confidently. If you haven’t already joined the thousands of security organizations that have done so, now is the time to begin. Resources AI-Powered Security Operations Platform | Microsoft Security Microsoft Sentinel in the Microsoft Defender portal | Microsoft Learn Shifting your Microsoft Sentinel Environment to the Defender Portal | Microsoft Learn Microsoft Sentinel is now in Defender | YouTube
Mismatching storage limits
We have a Microsoft 365 tenancy with several sharepoint sites, but the sharepoint admin pages don't agree on how much storage capacity we have access to. Storage Metrics says that our Site Collections have 25,600GB of available space. The properties pages for our sharepoint sites says we have a 25TB storage limit in the General tab. Both numbers are near enough as makes no difference. But the Active Sites page says that we have a limit of 4.75 TB for all our sites. Does anyone know why the Active Sites page is so starkly under reporting our actual storage limit? Or have any suggestions how to rectify this?
Developing Apps for Exchange Server
Hello everyone, I've built an AI Assistant for Outlook that works fine with the API's (email/calendar/todos). However some of the customers are asking how can they use it on their Microsoft Exchange accounts (on-premise servers). I don't have much experience in the Microsoft Exchange world, but I'm quite technical. Is technically possible to build an app that can integrate with hosted Exchange accounts and read emails, do AI Analysis, integrate with Calendar and everything like in the cloud? If yes, how is the authentication done? And not last, is hosted Exchange Server worth being investing in from a third party like me that wants to build on top of it, or businesses are switching to the cloud?
For Retention Policy, if I set Retain + Delete, does it delete the original file/copy/both?
Hello, I am learning about Retention Policy for SharePoint Online and wanted to get a confirmation on this option below. Let's say I chose to retain for 10 years based on when it was created AND said Yes to "Do you want us to delete it after this time?" option. After 10 years, does it delete original files, copies that are generated in Preservation Hold Library, or both? This part was a bit confusing for me lol
