Microsoft is trying to soften the blow for users who resisted the switch to New Outlook, introducing a classic theme that gives the redesigned email client a more familiar look and feel.
The move comes after years of mixed reception for the web-based reimplementation, with some IT administrators openly critical of the client. According to Neowin, Microsoft is hoping a more traditional appearance will make New Outlook feel less alien to people who preferred the original desktop app.
What the New Outlook classic theme changes
The New Outlook classic theme swaps the modern, lighter aesthetic for a darker, more conventional color scheme that mirrors the look of the classic Outlook desktop application. In practice, this means the interface uses deeper background tones and a more restrained palette rather than the bright whites and soft grays that define the current design.
For users who found the New Outlook interface jarring or too different from what they were used to, this theme offers a middle ground. You keep the underlying engine and feature set of New Outlook, but with a shell that looks closer to what many people have spent years with.

Why Microsoft is making this change
New Outlook for Windows launched in preview in 2020 and became generally available as Microsoft pushed users away from the classic Outlook desktop app. The company has been steadily encouraging organizations and individuals to migrate, citing faster performance, a modern design, and closer alignment with Outlook on the web and the mobile apps.
But the transition hasn’t been smooth for everyone. The client has drawn criticism for missing features that were present in the classic app, and some IT admins have been vocal about their dissatisfaction. Neowin reported that a number of administrators considered New Outlook “hot garbage,” a sentiment Microsoft appears to be trying to address with this design pivot.
By offering a classic theme, Microsoft is acknowledging that a large base of users simply want the new engine under the hood without being forced to adopt a radically different look. It’s a pragmatic concession to user feedback rather than a change to the underlying application.
What the theme means in practice
The classic theme is fundamentally a cosmetic change rather than a functional overhaul. It does not restore features that were removed or add new capabilities; instead, it re-skins the interface to reduce the visual gap between New Outlook and the classic desktop app.
This matters because appearance is often the first thing users notice, and a familiar look can make a meaningful difference in how comfortable people feel adopting new software. For teams migrating en masse, reducing friction at the UI level can ease adoption and cut down on support questions.

How to get the classic theme
As with most New Outlook design options, the classic theme is expected to be available through the client’s settings, where users can switch between themes. You would typically find this under the settings menu—likely under “General” or “Appearance”—where theme choices are listed. Note that the exact location is based on how Microsoft structures these options, as the company hasn’t published precise placement details.
Microsoft generally rolls out features like this gradually, so availability may vary depending on your tenant or account. If you don’t see the option immediately, it may still be rolling out to your environment.
What this means for you
If you’ve been put off by New Outlook’s modern look, this theme gives you a reason to reconsider without sacrificing the new engine’s performance and features. It’s a low-risk way to test the waters if you’re still on the classic desktop app and being nudged toward the switch.
For IT admins who were resistant to New Outlook, the classic theme reduces one common complaint—the unfamiliar interface—without requiring any change to your deployment strategy. You can still roll it out across your organization while giving users a more familiar experience.
The bigger picture
This theme addition fits into Microsoft’s broader strategy of migrating users off the classic Outlook desktop app, which the company has signaled it will eventually phase out. Rather than abandoning the design direction that drew criticism, Microsoft is refining it to be more palatable, a common approach for software in transition.
The classic theme is one of several adjustments aimed at smoothing New Outlook’s adoption. It signals that Microsoft is listening to feedback even as it pushes users toward its newer client, balancing the desire for a modern, unified experience with the reality that many people value familiarity.
Source: Neowin
Over to you: Would a classic theme be enough to get you to switch to New Outlook, or is the missing feature set still a dealbreaker?


