Showing tag results for Outlook on the Web

Mar 6, 2026
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Prepare your add-in for Outlook ribbon improvements

Office Extensibility team
Office Extensibility team

We’re improving how add-ins appear on the ribbon in Outlook on the web and the new Outlook on Windows. These updates make add-ins easier to find and align the experience across Outlook clients.

Office Add-insMicrosoft 365 Developer
Oct 6, 2025
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Changes to inline image representation in Outlook on the web and new Outlook for Windows

Office Extensibility team
Office Extensibility team

We are updating how inline images are represented in the HTML body of Outlook emails in Outlook on the web and the new Outlook for Windows. This change may impact how your add-in identifies and processes inline images when using the attachment ID.

Office Add-insMicrosoft 365 Developer