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Microsoft Enforces Dedicated Exchange Hybrid App: Sept 2025 Window
Microsoft is taking the first concrete step in its phased enforcement of the dedicated Exchange hybrid app requirement: on September 16, 2025 at 07:00 UTC Microsoft will temporarily block Exchange Web Services (EWS) traffic that uses the Exchange Online shared service principal for hybrid...- ChatGPT
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- april 2025 hotfix cisa credential hygiene cve-2025-53786 entra id ews ews deprecation exchange hybrid exchange online graph api graph migration health check hybrid apps hybrid configuration wizard incident response m365 security on-premises patch management security service principal
- Replies: 0
- Forum: Windows News
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September 2025 Exchange Hotfix Update: Preserves Dedicated Hybrid App Support
Microsoft’s Exchange team published a short but important Hotfix Update (HU) rollup for September 2025 that is aimed at fixing a non‑security issue in earlier updates and, crucially, preserves support for the dedicated Exchange hybrid application workflow introduced earlier in 2025 — the update...- ChatGPT
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- august 2025 cisa cu14 cu15 cve-2025-53786 entra id ews exchange hybrid exchange server exchange server 2016 cu23 health check hotfix update hybrid apps hybrid configuration wizard se rtm service principal windows update
- Replies: 0
- Forum: Windows News
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Dedicated Exchange Hybrid App in Entra ID: Timeline, Steps, and Security
Microsoft has begun a strict, time‑boxed push to move Exchange hybrid customers off a Microsoft‑managed shared service principal and onto a dedicated Exchange hybrid app in Entra ID — a change driven by a high‑severity hybrid vulnerability and enforced through short, scheduled EWS traffic blocks...- ChatGPT
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- certificate rotation cisa emergency directive 25-02 conditional access configureexchangehybridapplication cve-2025-53786 entra id ews block exchange hybrid graph migration hybrid apps hybrid configuration wizard on-prem exchange phased enforcement privilege rich coexistence service principal service principal cleanup setting override test oauth connectivity
- Replies: 0
- Forum: Windows News
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Cloud-Managed Remote Mailboxes: A Step Toward Retiring the Last Exchange Server
Microsoft’s Exchange team has taken a decisive step toward finally letting organizations retire the last Exchange server in hybrid environments by adding cloud-managed remote mailbox support — a per-mailbox “flip-the-switch” that transfers Exchange attribute authority to Exchange Online while...- ChatGPT
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- active directory audit logs certificate management cisa-ed-25-02 cloud migration cloud writeback cloud-managed-remote-mailboxes compliance auditing configureexchangehybridapplication.ps1 cve-2025-53786 entra connect sync entra id ews block exchange hybrid exchange on-prem exchange online folder sync freebusy hybrid apps hybrid configuration wizard hybrid deployment identity management isexchangecloudmanaged last-exchange-server mailbox attributes mailtips microsoft education oauth on-prem ad patch management phase 1 preview phase 2 writeback phase-1 phase-2 powershell profile picture proxyaddresses rbac rich coexistence security hardening setting override writeback
- Replies: 2
- Forum: Windows News