Most RecentMost ViewedMost LikesReleased: February 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. Updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline. Introducing more control over Direct Send in Exchange Online Read about a new feature that gives you more control over Direct Send in Exchange Online. 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. Deprecation of the -Credential Parameter in Exchange Online PowerShell Exchange Online PowerShell -Credential parameter will be deprecated soon. Exchange Online EWS, Your Time is Almost Up We wanted to provide an update on Exchange Online EWS deprecation. High Volume Email: Continued support for Basic Authentication & other important updates This announcement provides several important updates for High Volume Email. 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. Direct Send vs sending directly to an Exchange Online tenant This post discusses what Direct Send is, is not, and how to help control email sent directly to your tenant. Basic Authentication Deprecation in Exchange Online – What’s Next We wanted to let you know about the next chapter in our retirement of basic authentication in Exchange Online.
