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). Exchange servers may become unstable after installation of October 2026 Windows updates More information related to issues that some Exchange servers might experience after installation of October 2026 Windows updates. Notes from the field: testing EWSAllowedAppIDs safely We wanted to share some tips on how to test EWSAllowedAppIDs (EWS AppID allow list). Understanding the new 100 GB mailbox entitlement for Microsoft 365 Business suites We wanted to show Administrators how recent mailbox quota changes for Microsoft 365 Business suites will apply to their users. How to determine which Resource Mailboxes are being actively used Here are some tips on how to learn more about Exchange Online resource mailbox use. AI‑Powered Troubleshooting for Microsoft Purview Data Lifecycle Management now available Just a quick note mentioning a release of AI‑powered troubleshooter for Microsoft Purview Data Lifecycle Management. Exchange Online Public Folder Data and Retention Questions We wanted to answer some Exchange Online public folder data and retention questions. Message Trace Support Using Graph API is now in Public Preview We are happy to announce that the Message Trace support using Graph API is now in Public Preview. Demystifying Exchange Online Mailbox Quotas We wanted to do a deeper dive into various types of mailbox quotas in Exchange Online. Local Move Requests in Exchange Online – Why They’re Not Supported We wanted to explain why using Local Move Requests in Exchange Online is not a good idea as a general practice.
