Most RecentNewest TopicsMost LikesMost ViewedExchange Online EWS application stopped working? Do this. This blog post contains exact steps to temporarily unblock your blocked EWS applications (until April 2027). The Change Optics Report is now Generally Available in Exchange Online We are announcing General Availability of the Change Optics Report in Exchange Online. Sending From Email Aliases – General Availability We are announcing General Availability (GA) of Sending from Email Alias in Exchange Online. EWS Deprecation Is Here – What This Means To You EWS deprecation in Exchange Online is starting today. Learn the details of what happens next. Action Required: Upgrade ExchangeOnlineManagement PowerShell Module to Version 3.10.1 or Newer We wanted to let you know that you should update your Exchange Online PowerShell module over the next several months. Impact of Exchange Online EWS Deprecation on Hybrid Rich Coexistence and Cross-org Sharing We wanted to discuss how upcoming Exchange Online EWS retirement impacts our hybrid customers and cross-org sharing scenarios. Take control of your EWSAllowedAppIDs list before EWS access changes We wanted to provide additional guidance on how admins should use the EWSAllowedAppIDs allow list during EWS deprecation. Exchange 2016/2019: Throttling and Blocking up to the Final Public Update Baseline Customers still using Exchange 2016 or 2019 should read this update about oldest version of Exchange Server allowed to send email to Exchange Online over the OnPremises connector. Tell us how you use ObjectGuid, SamAccountName, and DistinguishedName in Exchange Online We wanted to ask how you use Guid, SamAccountName, and DistinguishedName in Exchange Online. Notes from the field: testing EWSAllowedAppIDs safely We wanted to share some tips on how to test EWSAllowedAppIDs (EWS AppID allow list).