Writeback for Cloud-Managed Remote Mailboxes: Now Generally Available | Microsoft Community Hub

Writeback for cloud-managed remote mailboxes is now Generally Available!  

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Reminder: Exchange 2016 and 2019 ESU Program Ends in October 2026 | Microsoft Community Hub

We wanted to provide a reminder that Exchange 2016 and 2019 ESU program ends in October 2026.  

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Released: July 2026 Exchange Server Security Updates | Microsoft Community Hub

We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only.  

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Cross-Tenant Message Recall in Exchange Online | Microsoft Community Hub

We wanted to announce cross-tenant Message Recall in Exchange Online!  

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Upcoming retirement of OWA Light in Exchange Server | Microsoft Community Hub

We wanted to tell you that we will be retiring OWA Light in Exchange Server.  

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Introducing EWSAllowedAppIDs: Preparing for the Final Phase of EWS Retirement | Microsoft Community Hub

We wanted to share details about the EWSAllowedAppIDs, to help you manage retirement of EWS applications in Exchange Online.  

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Released: June 2026 Exchange Server Security Updates | Microsoft Community Hub

We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only.  

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How to determine which Resource Mailboxes are being actively used | Microsoft Community Hub

Here are some tips on how to learn more about resource mailbox use.  

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Replacing IIS SMTP virtual server with Exchange Edge Transport | Microsoft Community Hub

How to go about replacing IIS SMTP virtual server with Exchange Edge Transport.

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Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview | Microsoft Community Hub

We are happy to announce public preview of writeback for cloud-managed remote mailboxes!  

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Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 | Microsoft Community Hub

We wanted to tell you how to address the Exchange Server May 2026 vulnerability CVE-2026-42897.  

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No Exchange Server Security Updates for May 2026 | Microsoft Community Hub

We are not releasing any Exchange Server Security Updates for May 2026.  

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Retirement of Direct Exchange ActiveSync Certificate-Based Authentication by End of 2026 | Microsoft Community Hub

We are announcing the deprecation of Exchange ActiveSync (EAS) certificate-based authentication (CBA) directly to Exchange Online.  

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Released: May 2026 Exchange Server Hotfix Update | Microsoft Community Hub

We have released a Hotfix Update for Exchange Server SE.  

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Update Your Exchange SE Hybrid On-premises Rich Coexistence to Graph | Microsoft Community Hub

Configure Exchange Server SE to move your Hybrid rich coexistence scenarios to Graph API calls.

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General Availability of Mailbox Import and Export Microsoft Graph APIs | Microsoft Community Hub

Announcing General Availability of Mailbox Import and Export Microsoft Graph APIs.  

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Deprecating Legacy TLS and Endpoints for POP and IMAP in Exchange Online | Microsoft Community Hub

Exchange Online is deprecating old legacy TLS 1.0/1.1 endpoints for POP and IMAP clients.  

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techcommunity.microsoft.com

Change Optics Report released into Public Preview to showcase messages impacted by future changes | Microsoft Community Hub

We wanted to tell you about a new Change Optics Report that is now in Public Preview.  

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Announcing Period 2 Exchange 2016/2019 Extended Security Update (ESU) program | Microsoft Community Hub

We created a Period 2 ESU for Exchange customers who need extra time to migrate to Exchange SE.  

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No Exchange Server Security Updates for April 2026 | Microsoft Community Hub

We are not releasing any Exchange Server Security Updates for April 2026.  

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High Volume Email reaches General Availability in Exchange Online | Microsoft Community Hub

High Volume Email reached GA!  

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Upcoming Breaking Changes to Modifying Sensitive Email Properties via Graph API | Microsoft Community Hub

We are announcing upcoming changes to what message properties can be changed using Graph API.  

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Celebrating 30 Years of Microsoft Exchange | Microsoft Community Hub

Exchange Server is 30 years old!  

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Give Us Feedbaxck on Faster, Simpler Data Purging for Exchange Online | Microsoft Community Hub

Microsot Purview team is looking for feedback on Priority Cleanup improvements.  

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AI‑Powered Troubleshooting for Microsoft Purview Data Lifecycle Management now available | Microsoft Community Hub

Just a quick note mentioning a release of AI‑powered troubleshooter for Microsoft Purview Data Lifecycle Management.  

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Announcing SMTP DANE & MTA STS Connector Modes in Exchange Online | Microsoft Community Hub

We wanted to announce SMTP DANE & MTA STS Connector Modes in Exchange Online.  

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No Exchange Server Security Updates for March 2026 | Microsoft Community Hub

We are not releasing any Exchange Server Security Updates for March 2026.  

techcommunity.microsoft.com

Notes From the Field: Finding and Remediating EWS App Usage Before Retirement | Microsoft Community Hub

We wanted to share some tips on how to find out details of EWS usage in your tenant.  

techcommunity.microsoft.com

Multi-Geo In-Region Routing General Availability | Microsoft Community Hub

We’re excited to share that Multi-Geo In-Region Routing reached General Availability in December 2025.  

techcommunity.microsoft.com