Microsoft Outlook: Updated behavior for “OpenLinks” app configuration keys for Android/iOS

Microsoft Outlook for iOS/Android is updated to modify the behavior of the "OpenLinks" app configuration keys, which control hyperlink behavior. The update is expected to roll out in mid-September 2024 with changes to existing documentation. This update introduces two app configuration keys for controlling hyperlink behavior: "com.microsoft.outlook.Settings.OpenLinks.UseSystemDefaultBrowser" and "com.microsoft.outlook.Settings.OpenLinks.UserChangeAllowed." The behavior and intent of these keys will be clarified, and the update will match the behavior as described in the table provided in the content.

Organizations using Microsoft Outlook for iOS/Android will need to review their configurations before the rollout takes place. The "com.microsoft.outlook.Settings.OpenLinks.UseSystemDefaultBrowser" key controls whether links open in the system browser or not, and the "com.microsoft.outlook.Settings.OpenLinks.UserChangeAllowed" key controls whether the Open Links row appears in Outlook settings for allowing users to choose between the system default browser and Microsoft Edge. Before this update, the interaction between these two keys was undocumented, with potentially unexpected results.

By mid-September 2024, the update is expected to complete its rollout, and Outlook mobile for iOS/Android will be updated so the behavior with respect to these two policies matches the behavior described in the provided table. To prepare for the update, organizations need to check if their environment matches row 1 or row 4 in the table.

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