Did you open Outlook today and think, "Why does everything look different?" Maybe the message list looks squashed, the reading pane is in the wrong place, or the whole layout feels unfamiliar. Happily ...

Turn on threaded conversations in Outlook to keep your inbox tidy and follow replies easily with this simple guide.

Outlook on Windows 11 added as many as four features in September 2025, including custom sounds for mail or events.