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). Notes from the field: testing EWSAllowedAppIDs safely We wanted to share some tips on how to test EWSAllowedAppIDs (EWS AppID allow list). Upcoming retirement of OWA Light in Exchange Server We wanted to tell you that we will be retiring OWA Light in Exchange Server. Retirement of Direct Exchange ActiveSync Certificate-Based Authentication by End of 2026 We are announcing the deprecation of Exchange ActiveSync (EAS) certificate-based authentication (CBA) directly to Exchange Online. Deprecating Legacy TLS and Endpoints for POP and IMAP in Exchange Online Exchange Online is deprecating old legacy TLS 1.0/1.1 endpoints for POP and IMAP clients. Notes From the Field: Finding and Remediating EWS App Usage Before Retirement We wanted to share some tips on how to find out details of EWS usage in your tenant. Streamlined Moderation Approvals, Now in All Outlook Clients We wanted to let you know about upcoming changes to Exchange Online message moderation. Exchange Online ActiveSync Device Support Update We want to inform our users and organizations about an important upcoming change regarding Exchange ActiveSync (EAS) device connectivity to Exchange Online. Update to EWS Access for Kiosk / Frontline Worker Licensed Users We wanted to provide an update on EWS access for Kiosk / Frontline Worker licensed users. Exchange Online ActiveSync Certificate-based Authentication endpoint changes We wanted to let you know about Exchange Online ActiveSync Certificate-based Authentication endpoint changes.
