The June 2026 SU for Exchange Server SE addresses vulnerabilities reported by security partners and found through Microsoft’s internal processes, as well as CVE-2026-42897. Review the blog post for details. techcommunity.microsoft.com/blog/exchang... #MSExchange #Security #EEMS #FeatureFlighting

The first Flighted Feature in Exchange Server SE shipped and no one noticed www.linkedin.com/pulse/first-... #MSExchange #FeatureFlighting

Replacing IIS SMTP virtual server with Exchange Edge Transport | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Microsoft announced today that writeback for Cloud-Managed Remote Mailboxes is now in Public Preview! techcommunity.microsoft.com/blog/Exchang... For customers with no remaining dependency on their last Exchange Server, an updated guide for decommissioning it is now available! #MSExchange #Hybrid

Yesterday's Exchange Server mitigation breaks the OWA Calendar Proxy Test Probe, causing a lot of noise in the event log. You might consider temporarily disabling the probe, as discussed at linkedin.com/feed/update/... #MSExchange #security

Microsoft released IIS URL Rewrite rule mitigation M2.1.0 for EEMS and EOMT today and disclosed CVE-2026-42897, a reported vulnerability affecting Outlook on the web in Exchange Server. This article talks about why you need EEMS or EOMT. lnkd.in/g7UNCHsQ #MSExchange

Microsoft disclosed CVE-2026-42897, a reported vulnerability affecting Exchange Server OWA. More info at techcommunity.microsoft.com/blog/exchang... #MSExchange #Security #EEMS #mitigation

No Exchange Server Security Updates for May 2026 techcommunity.microsoft.com/blog/exchang... #MSExchange

By the end of 2026, Microsoft will no longer support direct CBA connections from EAS mobile email clients to Exchange Online. This does not affect Outlook Mobile or Exchange Server. #MSExchange #EAS #CBA techcommunity.microsoft.com/blog/exchang...

Announcing general availability of the mailbox import and export Microsoft Graph APIs devblogs.microsoft.com/microsoft365... #MSGraph #ImportExport #Mailbox

Moving your Exchange Hybrid rich coexistence from EWS to Graph: 1. Install the May 2026 HU (techcommunity.microsoft.com/blog/exchang...) 2. Follow the documentation to enable the Graph API hybrid workflow techcommunity.microsoft.com/blog/exchang... #MSExchange #EWS #Graph #Hybrid

Microsoft has released the May 2026 HU, which contains functionality that allows you to start switching your Exchange Server hybrid rich coexistence from using EWS to REST-based Microsoft Graph API calls. techcommunity.microsoft.com/blog/exchang... #MSExchange #HotfixUpdate #EWS #Graph #Hybrid

This is a great tool! Just ran this against my environment. Excellent UX/UI design, fantastic coverage of multiple frameworks, and collection and reporting are fast! Highly recommend! #MSExchange #Security #EDCA

Deprecating Legacy TLS and Endpoints for POP and IMAP in Exchange Online | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Change Optics Report released into Public Preview to showcase messages impacted by future changes | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Microsoft announced another 6-month ESU program for Exchange Server 2016/2019 (aka Period 2). You should have moved off your legacy servers by now, but if you are still running Exchange 2016/2019, you might want to think about getting Period 2 ESU. techcommunity.microsoft.com/blog/exchang...

No Exchange Server Security Updates for April 2026 | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/Exchang...

Starting December 31, 2026, Microsoft is implementing a significant update affecting applications that modify sensitive properties on non-draft email messages. Details at techcommunity.microsoft.com/blog/exchang.... #MSExchange #Graph

Celebrating 30 Years of Microsoft Exchange! For an in-depth look, see also: Part I - linkedin.com/pulse/celebr... Part II - linkedin.com/pulse/celebr... Part III - linkedin.com/pulse/celebr... #MSExchange #30Years

Microsoft is looking for feedback for the next version of Priority Cleanup (v2). techcommunity.microsoft.com/blog/exchang... #MSExchange #Purview #PriorityCleanup

SMTP DANE & MTA STS Connector Modes allow explicit control over how strictly Exchange Online enforces modern mail flow security standards when sending email over outbound connectors techcommunity.microsoft.com/blog/exchang... #MSExchange #SMTPDANE #MTASTS

PSA: No Exchange Server Security Updates for March 2026 - techcommunity.microsoft.com/blog/Exchang... #MSExchange

Exchange Server SE Licensing, Part III www.linkedin.com/pulse/exchan... Part III covers purchasing options, buying from CSPs, and obtaining Extended Use Rights. #MSExchange #Licensing

Notes From the Field: Finding and Remediating EWS App Usage Before Retirement techcommunity.microsoft.com/blog/exchang... #MSExchange #EWS #AppUsage

Do you use Multi-Geo Capabilities in Microsoft 365? In-Region Routing reached GA in December 2025. You can now control the geographic location where inbound email enters Exchange Online for anonymous inbound mail and hybrid inbound mail from on-premises. techcommunity.microsoft.com/blog/exchang...

Support for the -Credential parameter will be removed from new Exchange Online PowerShell versions released after June 2026. #MSExchange #ExchangeOnline #Security techcommunity.microsoft.com/blog/exchang...

Released: February 2026 Exchange Server Security Updates techcommunity.microsoft.com/blog/exchang... #MSExchange #Security

Exchange Web Services (EWS) is approaching end of service in Exchange Online and will be disabled starting in October 2026, with a complete shutdown in mid-2027. This is Exchange Online only--no changes to EWS in Exchange Server. #EWS #ExchangeOnline techcommunity.microsoft.com/blog/exchang...

The Public Preview of the User Configuration API in the Graph beta endpoint is now available. The User Configuration API is a new set of endpoints you can use to create, read, update, and delete user configuration objects in Exchange Online mail folders. devblogs.microsoft.com/microsoft365...

PSA: To avoid mail flow disruption between your organization and Exchange Online, organizations must ensure that their servers and clients trust the DigiCert Global Root G2 Certificate Authority and its subordinate CAs before April 30, 2026. techcommunity.microsoft.com/blog/exchang... #MSExchange

Control whether your Windows BitLocker recovery key is saved online - linkedin.com/pulse/contro... #BitLocker #Microsoft #privacy

Great information about Public Folder data and retention in Exchange Online. #MSExchange #ExchangeOnline #PublicFolders #Retention techcommunity.microsoft.com/blog/exchang...

Message Trace support using Graph API is now in Public Preview and GA will begin rolling out soon. If you currently use Message Trace using the Reporting Webservice, migrate to the Graph API before April 6, 2026. techcommunity.microsoft.com/blog/exchang... #MSExchange #MessageTrace #GraphAPI

Deep dive into Exchange Online Mailbox Quotas #ExchangeOnline #Quotas techcommunity.microsoft.com/blog/exchang...

FYI, no SUs or other security releases for Exchange Server SE (or 2016/2019 customers in the ESU program) this month. #MSExchange #Security techcommunity.microsoft.com/blog/Exchang...

PSA: Microsoft does not support local move requests in Exchange Online. This article explains why that is. #MSExchange #MailboxMoves techcommunity.microsoft.com/blog/exchang...

FYI, Microsoft is indefinitely cancelling the Exchange Online Mailbox External Recipient Rate Limit - techcommunity.microsoft.com/blog/exchang... #MSExchange #ERR #Announcement

Busting the Top 3 Myths about Exchange Server Subscription Edition www.linkedin.com/pulse/top-3-... #MSExchange #ExchangeSE #Myths

Since posting my previous article about licensing and product keys in Exchange Server SE, I’ve received a ton of follow-up questions. So, here's Part II. www.linkedin.com/pulse/exchan... #MSExchange #Licensing

Starting March 1, 2026, devices running ActiveSync versions lower than 16.1 will no longer be able to connect to Microsoft services. This applies only to Exchange Online and only to mobile devices using native email apps. #MSExchange #EAS #ActiveSync techcommunity.microsoft.com/blog/exchang...

Learn how to use ExcludeFromAllHolds in Exchange Online to remove holds and allow for permanent deletion while maintaining compliance requirements. techcommunity.microsoft.com/blog/exchang... #ExchangeOnline #Hold #Compliance

FYI, security updates were also released for Office Online Server yesterday. See support.microsoft.com/en-us/topic/... for details and download link. #OfficeOnlineServer #WAC #Security

The December 2025 SU is now available for Exchange Server SE. This SU is also available for Exchange Server 2019 and Exchange Server 2016 customers in the Exchange Server ESU program. techcommunity.microsoft.com/blog/Exchang... #MSExchange #Security

Confused about licensing and product keys in Exchange Server SE? This may help. lnkd.in/gMDBNEdV #MSExchange #Licensing #ProductKeys #SubscriptionEdition

Starting March 1, 2026, Microsoft will block EWS access for Exchange Online mailboxes that don't have license rights to EWS, namely, Exchange Online Kiosk, Microsoft 365/Office 365 F1, and Microsoft 365/Office 365 F3. techcommunity.microsoft.com/blog/exchang... #MSExchange #EWS #Licensing

Exchange Online Admin API (replacement for EWS) is now available in public preview. techcommunity.microsoft.com/blog/exchang... #MSExchange #EWSDeprecation #AdminAPI

PSA: Microsoft has resolved the issue of duplicate schema entries when Windows Server 2025 is used as a Schema Master FSMO role holder. See support.microsoft.com/en-us/topic/.... This prevents the issue from happening but if you are experiencing the issue, contact the Windows AD support team.

Join us LIVE at #dotNetConf as we launch .NET 10 and VS2026! We are live with demos and details for the next three days! www.dotnetconf.net

PSA: No Exchange Server SUs are being released this month, and between now and April 2026, the Exchange Team will explicitly announce when SUs are NOT released. techcommunity.microsoft.com/blog/exchang... #MSExchange #Security

Retirement Date for Office Online Server (OOS) has been Announced | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...