Microsoft Exchange

The official Twitter account for Microsoft Exchange. This is not a support account. For support, contact @MicrosoftHelps or visit

[Microsoft Exchange @MSFTExchange]

Released: November 2026 Exchange Server Security Updates https://t.co/b9IGRgiUx2

[Microsoft Exchange @MSFTExchange]

Now available: OAuth authentication for on-premises Exchange mailbox migrations to Microsoft 365 https://t.co/RlSsy70l2R

[Microsoft Exchange @MSFTExchange]

Exchange Online EWS application stopped working? Do this. https://t.co/prIjGe4e8C

[Microsoft Exchange @MSFTExchange]

The Change Optics Report is now Generally Available in Exchange Online https://t.co/Cs8rU3bokR

[Microsoft Exchange @MSFTExchange]

Exchange servers may become unstable after installation of October 2026 Windows updates https://t.co/T4qfSZWj72

[Microsoft Exchange @MSFTExchange]

Released: October 2026 Exchange Server Security Updates https://t.co/qZPE26ZOmh

[Microsoft Exchange @MSFTExchange]

Sending From Email Aliases – General Availability https://t.co/HDOUvcnd8c

[Microsoft Exchange @MSFTExchange]

Released: September 2026 V2 Exchange Server Security Updates https://t.co/SOv4nLdXNy

[Microsoft Exchange @MSFTExchange]

EWS Deprecation Is Here – What This Means To You https://t.co/yLHsXNUHq4

[Microsoft Exchange @MSFTExchange]

Action Required: Upgrade ExchangeOnlineManagement PowerShell Module to Version 3.10.1 or Newer https://t.co/EYo2EBYRNI

[Microsoft Exchange @MSFTExchange]

Impact of Exchange Online EWS Deprecation on Hybrid Rich Coexistence and Cross-org Sharing | Microsoft Community Hub https://t.co/2j2awCWPCl

[Microsoft Exchange @MSFTExchange]

Released: September 2026 Exchange Server Security Updates https://t.co/gYdIZHXPH7

[Microsoft Exchange @MSFTExchange]

Exchange Server AD FS Modern Authentication: Expanded Outlook client support
https://t.co/9TAsVcwMus

[Microsoft Exchange @MSFTExchange]

Take control of your EWSAllowedAppIDs list before EWS access changes
https://t.co/HPKuAkaEVf

[Microsoft Exchange @MSFTExchange]

Exchange 2016/2019: Throttling and Blocking up to the Final Public Update Baseline | Microsoft Community Hub https://t.co/anPCpXkvAk

[Microsoft Exchange @MSFTExchange]

Tell us how you use ObjectGuid, SamAccountName, and DistinguishedName in Exchange Online | Microsoft Community Hub https://t.co/gwzU6VFxOh

[Microsoft Exchange @MSFTExchange]

Help us shape Exchange Server on-premises to different online org Free/Busy after EWS retirement | Microsoft Community Hub https://t.co/mjxcKfkUZs

[Microsoft Exchange @MSFTExchange]

Notes from the field: testing EWSAllowedAppIDs safely | Microsoft Community Hub https://t.co/2HxSDeuljO

[Microsoft Exchange @MSFTExchange]

Understanding the new 100 GB mailbox entitlement for Microsoft 365 Business suites | Microsoft Community Hub https://t.co/TXd7GNQBIh

[Microsoft Exchange @MSFTExchange]

Where is Exchange SE CU1 anyway? | Microsoft Community Hub https://t.co/50CHHjPCww