Until now, anyone who wanted to add a logo to their Outlook signature on a smartphone had to download the image to their device first. That will soon be a thing of the past: According to the Microsoft 365 roadmap, Outlook users on Android and iOS will soon be able to select signature images directly from OneDrive. The rollout will begin in late August 2026 and is expected to be completed by the end of September.
It may sound like a minor change, but in everyday use, it eliminates exactly the kind of extra steps that are most annoying on a smartphone. And once you store your company logo centrally in OneDrive, it’ll be available on every device.
What’s Changing in the Outlook Signature Editor
The signature editor in the mobile Outlook app is getting a second image source. Instead of accessing only the device’s photo library, users will have two options to choose from: “Select from Files” opens OneDrive storage, while “Select from Photo Library” remains for local images. In the OneDrive view, Outlook automatically filters for image files, and you can switch between grid and list views.
Microsoft puts it succinctly in the roadmap: In addition to their device’s photo library, users can now insert images directly from OneDrive into their email signature.
The process used to be different. If you had your signature image stored in OneDrive, you first had to download it to your smartphone via the OneDrive app, then locate it in the file picker, and insert it from there. On Android, a file like this often ends up somewhere in the Downloads folder, where the image picker doesn’t display it immediately. It is precisely this intermediate step that has been eliminated.
Timeline, Platforms, and Roadmap Entry
The entry is listed in the Microsoft 365 Roadmap under Feature ID 568079; in the Message Center, the announcement is identified as MC1437668. Here’s an overview of the key details:
| Feature | Description |
|---|---|
| Roadmap ID | 568079 |
| Message Center ID | MC1437668 |
| Platforms | Outlook for Android and iOS |
| Rollout Start | Late August 2026 |
| Completion | Expected by the end of September 2026 |
| Cloud Environments | Worldwide, GCC, GCC High, DoD |
| Default state | Enabled, no admin configuration required |
The scope of support for cloud environments is noteworthy: In addition to the standard Worldwide instance, the U.S. government environments GCC, GCC High, and DoD are included from the start. Such features often reach highly regulated instances with a significant delay.
Windows and the web are left out for now
The announcement mentions only the mobile apps. Neither Outlook for Windows nor the web version appears in the roadmap entry, and Microsoft hasn’t provided any information on whether the feature will be added there later. However, it’s not quite as urgent there: On the desktop, it’s easier to drag images from a synced OneDrive folder anyway.
What Admins Should Do Now
From an IT perspective, the effort involved is manageable. The feature is enabled by default; no admin intervention is required, and Microsoft doesn’t mention an opt-out option. Nevertheless, two steps make sense: inform support teams about the new option and update internal guides that describe the old method using the photo library.
For companies that manage their logo centrally, there’s also a practical benefit. If the image file is stored in a shared OneDrive or SharePoint folder, all employees will have access to the same version. In the event of a rebranding, the file only needs to be replaced once, rather than being distributed via email to half the workforce. A note on this: Outlook inserts the image into the signature; it does not link to it dynamically. If you want an updated signature after a logo change, you’ll need to create it again.
Outlook Mobile: More Than Just Signatures
The signature update isn’t the only area under development in the mobile app. At the same time, Microsoft is testing drag-and-drop event rescheduling in the calendar view, both in the single-day and multi-day views. Meanwhile, for Windows and the web, a unified inbox spanning multiple accounts and a more prominent Copilot button in classic Outlook are on the way.
Conclusion
The new OneDrive selection for the Outlook signature isn’t a major feature, but rather one of those tweaks to a process that people are reluctant to mess with on their phones anyway. One less step, one more centrally stored logo. Starting in late August 2026, Microsoft will roll out the feature for Android and iOS. It remains to be seen whether Windows and the web will follow suit at some point.
