Most RecentNewest TopicsMost LikesMost ViewedCross-Tenant Message Recall in Exchange Online We wanted to announce cross-tenant Message Recall in Exchange Online! Replacing IIS SMTP virtual server with Exchange Edge Transport How to go about replacing IIS SMTP virtual server with Exchange Edge Transport. Modernizing DNS Security for Exchange Online Mail Flow We wanted to provide a few updates related to modernizing DNS Security in Exchange Online. Change Optics Report released into Public Preview to showcase messages impacted by future changes We wanted to tell you about a new Change Optics Report that is now in Public Preview. High Volume Email reaches General Availability in Exchange Online High Volume Email reached GA! Announcing SMTP DANE & MTA STS Connector Modes in Exchange Online We wanted to announce SMTP DANE & MTA STS Connector Modes in Exchange Online. Multi-Geo In-Region Routing General Availability We’re excited to share that Multi-Geo In-Region Routing reached General Availability in December 2025. Streamlined Moderation Approvals, Now in All Outlook Clients We wanted to let you know about upcoming changes to Exchange Online message moderation. Trust DigiCert Global Root G2 Certificate Authority to Avoid Exchange Online Email Disruption We wanted to let you know of an upcoming change in certificates trusted by Exchange Online. Updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline.
