Microsoft Delays By a Year Its New Outlook Rollout

Microsoft has extended its New Outlook migration timeline by roughly a year, pushing the default opt-out phase to March 2027 and the final cutover to at least 2028. Enterprises resistant to the switch gain additional planning time, while those eager for AI-driven features may face a wait since generative capabilities are concentrated in the new client.

A key consideration is that New Outlook treats on-premises and third-party Exchange as basic mail, stripping advanced calendar and collaboration features. Organizations wanting the full benefit will likely need Exchange Online, adding a licensing dimension to the migration decision.

Read the full article at Directions on Microsoft →

---

This post is a paraphrased overview based on an article originally published by Directions on Microsoft.