Most RecentNewest TopicsMost LikesMost ViewedTake 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. Writeback for Cloud-Managed Remote Mailboxes: Now Generally Available Writeback for cloud-managed remote mailboxes is now Generally Available! Reminder: Exchange 2016 and 2019 ESU Program Ends in October 2026 We wanted to provide a reminder that Exchange 2016 and 2019 ESU program ends in October 2026. Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview We are happy to announce public preview of writeback for cloud-managed remote mailboxes! Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 We wanted to tell you how to address the Exchange Server May 2026 vulnerability CVE-2026-42897. Update Your Exchange SE Hybrid On-premises Rich Coexistence to Graph Configure Exchange Server SE to move your Hybrid rich coexistence scenarios to Graph API calls. Announcing Period 2 Exchange 2016/2019 Extended Security Update (ESU) program We created a Period 2 ESU for Exchange customers who need extra time to migrate to Exchange SE. Cloud-Managed Remote Mailboxes: Now Generally Available! We are happy to announce General Availability of cloud-managed Remote Mailboxes. Updates to Get-Contact and Set-Contact Cmdlets for “Contacts” Recipient Type in Exchange Online We will make a change to management of "Contact" Recipient Type objects in Exchange Online.
