Microsoft is killing an Outlook Copilot feature
Microsoft once pitched Copilot as a way to tame overflowing inboxes. Now, one of its AI-powered email tools is heading for the exit just over a year after its introduction.
The feature, called Prioritize My Inbox, uses Copilot to learn which messages matter most to each user. Rather than simply sorting emails using fixed rules, it considers work habits and personal preferences to highlight messages that deserve attention. Users can also provide prompts explaining what they consider important.
That makes it different from Outlook’s familiar Focused Inbox, which separates messages into broad categories. The Copilot feature was designed to offer a more personalized view of incoming mail, effectively acting as an assistant that helps users decide what to tackle first.
Microsoft was enthusiastic about the idea when it launched, describing it as a way to improve responsiveness, save time, and reduce the stress of dealing with an ever-growing pile of unread messages.
But the experiment hasn’t lasted long. According to a Microsoft 365 Message Center announcement, the company is retiring Prioritize My Inbox across all Outlook clients as part of a broader cleanup effort intended to simplify the Copilot experience.
The shutdown is scheduled to begin on October 26, 2026, with the feature gradually disappearing until the process is completed by the end of March 2027.
Microsoft hasn’t offered much explanation for the decision beyond its goal of creating a simpler Outlook Copilot experience. It’s therefore unclear whether the feature struggled with adoption, failed to meet expectations, or simply no longer fits the company’s plans.
For users who relied on AI to separate urgent messages from everyday email noise, the change means finding another way to stay organized. And for Microsoft, it’s another reminder that not every feature marketed as the future of productivity becomes a permanent part of the product.
