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...

Office Online Server Retirement Announced - December 31, 2026 techcommunity.microsoft.com/blog/officee... #OOS #WAC #OfficeOnlineServer #OnPremises #OfficeServers

Cloud-Managed Remote Mailboxes: Now Generally Available! | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Released: October 2025 Exchange Server Security Updates techcommunity.microsoft.com/blog/exchang... For Exchange Server SE, Exchange Server 2019, and Exchange Server 2016 #MSExchange #security

It's October 14, 2025. Turn off all your servers running Exchange Server 2016 or Exchange Server 2019 tonight. Just kidding! Install the October 2025 SU first; then turn off your servers. Long live Exchange Server SE! #MSExchange #EndofSupport #ThereCanBeOnlyOne

PSA: Do NOT use Windows Server 2025 as the schema master before installing Exchange Server SE RTM. The Windows Server team is working on a permanent fix for this issue (to be released in the following months). #WindowsServer2025 #MSExchangeSE #ADSchema techcommunity.microsoft.com/blog/exchang...

Are you responsible for managing Exchange Server Subscription Edition? If so, I wrote this for you: www.amazon.com/dp/B0FR5GGL75/ Available in Kindle and Paperback. #MSExchange #admins

Non-security HU released for Exchange SE RTM, Exchange 2019 CU14/CU15, and Exchange 2016 CU23 that fixes an issue when deploying the dedicated Exchange Hybrid app. Released: September 2025 Exchange Server Hotfix Updates techcommunity.microsoft.com/blog/exchang... #MSExchange #Hybrid #HotfixUpdate

No more MOERA domains for email (which you shouldn't be using the first place 😉) Limiting Onmicrosoft Domain Usage for Sending Emails techcommunity.microsoft.com/blog/exchang... #MExchange #ExchangeOnline #MOERA #Security

Introducing Cloud-Managed Remote Mailboxes: a Step to Last Exchange Server Retirement techcommunity.microsoft.com/blog/exchang... #MSExchange #Hybrid #LastExchangeServer

FYI, temporary pause on the first planned temporary enforcement of the dedicated Hybrid app. See the banner at techcommunity.microsoft.com/blog/exchang.... #MSExchange #Hybrid #Security

The first SU for Exchange Server SE is available. Released: August 2025 Exchange Server Security Updates - techcommunity.microsoft.com/blog/exchang... #MSExchange #Securty #Announcement

Exchange Server Subscription Edition (SE) is now available | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Announcing Exchange 2016 / 2019 Extended Security Update program | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Use GitHub Copilot to help speed up your transition from EWS | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

What is Direct Send and how to secure it | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Dedicated Hybrid App: temporary enforcements, new HCW and possible hybrid functionality disruptions | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Direct Send vs sending directly to an Exchange Online tenant | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Microsoft customer guidance for SharePoint Server vulnerability CVE-2025-53770 - msrc.microsoft.com/blog/2025/07... This does not affect SharePoint Online. #SharePointServer #security #zerodaythreat

Breaking News! Announcing Exchange 2016 / 2019 Extended Security Update (ESU) program! Note this is not extended support; it's extended security updates for 6 months. techcommunity.microsoft.com/blog/exchang... #MSExchange #ESU #Announcement

Today's the day! Exchange Server SE and Skype for Business Server SE have both been released! Blog post announcements: techcommunity.microsoft.com/blog/exchang... techcommunity.microsoft.com/blog/skype_f... #MSExchange #Skype4BusinessServer #RTM #Announcement

PLEASE RP: New and Free Active Directory Domain Services Applied Skill Credential techcommunity.microsoft.com/t5/itops-tal...

May 2025 HUs for Exchange 2016 and Exchange 2019 have some important (non-security) fixes that will be incorporated into future releases, including Exchange Server SE RTM. techcommunity.microsoft.com/blog/exchang... #MSExchange #HotfixUpdate

Get the status of legacy Exchange Online tokens and add-ins that use them | Microsoft Community Hub! 🦋 techcommunity.microsoft.com/blog/exchang...

Give feedback to Microsoft on Exchange Online cmdlet changes and Rest API availability for admin scenarios techcommunity.microsoft.com/blog/exchang... #MSExchange #Survey

Email telemetry in Azure Communication Services techcommunity.microsoft.com/blog/AzureCo...

Usage reports for EWS in Exchange Online are now available in the Microsoft 365 admin center. Remember, EWS use will be deprecated in October 2026. techcommunity.microsoft.com/blog/exchang... #MSExchange #EWS #Reports

Important updates to High Volume Email (HVE) for Microsoft 365: 1. Basic auth supported until Sept 2028; 2. External recipient support removed; and 3. Limits imposed during Preview are now changed. techcommunity.microsoft.com/blog/exchang... #HighVolumeEmail #Microsoft365

Why in-place upgrade from Exchange Server 2019 to Exchange Server SE is low risk techcommunity.microsoft.com/blog/exchang... #MSExchange #Upgrade

If you use Get-FederationInformation in Exchange Online, be aware of this significant and important change. techcommunity.microsoft.com/blog/exchang... #MSExchange #ExchangeOnline #SFI

New Reject Direct Send setting in Exchange Online now in Public Preview! techcommunity.microsoft.com/blog/exchang... #MSExchange #ExchangeOnline #DirectSend #PublicPreview

Important Exchange Server Security Changes for Hybrid Deployments - techcommunity.microsoft.com/blog/exchang...

Released: April 2025 Exchange Server Hotfix Updates! These updates will be incorporated into Exchange Server SE RTM, as well. techcommunity.microsoft.com/blog/exchang... #MSExchange #HotfixUpdate

On-premises OWA access to cloud archive mailbox is being retired. Note that this affects only OWA and does not affect Outlook. techcommunity.microsoft.com/blog/exchang... #MSExchange #Announcement #CloudArchive #OWA

6 months from today is the end of support for Exchange Server 2019 and Exchange Server 2016 - techcommunity.microsoft.com/blog/exchang... #MSExchange

Stopping attacks against on-premises Exchange Server and SharePoint Server with AMSI www.microsoft.com/en-us/securi... #MSExchange #SharePointServer #AMSI #security

Licensing and pricing updates for on-premises server products coming July 2025 techcommunity.microsoft.com/blog/microso... #MSExchange #SfBServer

Microsoft Graph APIs for permanent deletion of mailbox items now available devblogs.microsoft.com/microsoft365... #MSGraph #ExchangeOnline

We’re introducing new tenant-level outbound email limits (aka Tenant External Recipient Rate Limit or TERRL) based on the number of purchased email licenses a tenant has or if a tenant has only trial licenses. techcommunity.microsoft.com/blog/exchang... #MSExchange #ExchangeOnline #OutboundLimits

If you use #EWS in #ExchangeOnline, then take note of a significant change in the behavior of the EWSEnabled tenant-wide switch. The way to control EWS usage in Exchange Online is changing. techcommunity.microsoft.com/blog/exchang...

CU15 is out!! Be sure to read the documentation, especially the new Feature Flighting. techcommunity.microsoft.com/blog/exchang... #MSExchange #CU15 #Announcement #FeatureFlighting

Public Preview for the new Message Trace in Exchange Online is rolling out now and is expected to be completed by the end of the month. Find the new Message Trace in the EAC under Mail flow > Message Trace techcommunity.microsoft.com/blog/exchang... #MSExchange #MessageTrace #ExchangeOnline

Update on Client Access Rules Deprecation in Exchange Online - techcommunity.microsoft.com/blog/exchang... #MSExchange #CARs

PLEASE RP: Windows Server 2025: New ways to gain cloud agility and security. A huge thank you to everyone for your support. This release was driven by you and your requirements. To learn more, check out this session at Ignite: ignite.microsoft.com/en-US/sessio...

Updates on Servicing Exchange Server 2019 - techcommunity.microsoft.com/blog/exchang... In summary, we are pushing the release of Exchange Server 2019 CU15 to early January 2025. #MSExchange #Announcement