Hoxhunt Add-in Unavailable on Outlook for Android 5.2623.0

This incident is now resolved. Multiple of our customers and users have confirmed that updating to Outlook for Android version 5.2624.1 restores full functionality of the Hoxhunt add-in.

Please note: After updating, add-ins may not appear immediately in Outlook. If the Hoxhunt add-in is not visible straight away, please wait a few minutes and restart Outlook.

Recommended action: If you have not yet updated, please install Outlook for Android version 5.2624.1 or later via the Google Play Store.

We thank you for your patience during this incident. If you continue to experience issues after updating, please contact your IT or security team.

Microsoft has released Outlook for Android version 5.2624.1, which contains the fix for the bug that caused all Office add-ins to stop loading. The update is currently rolling out and may not yet be available on all devices. Full availability is expected by end of day today, Friday 27 June 2026.

Please note: After updating, add-ins may not appear immediately in Outlook. If the Hoxhunt add-in is not visible straight away, please wait a few minutes and restart Outlook before contacting support.

Recommended action: Check for updates to Outlook for Android via the Google Play Store. If version 5.2624.1 is available on your device, please update at your earliest convenience.

We will post a final update once the rollout is complete and the issue is confirmed resolved for all users.

Microsoft confirmed that a recent update to the Outlook app on Android (version 5.2623.0) contains a bug that prevents all add-ins and plug-ins from working. A fix has been developed and is included in Outlook for Android version 5.2624.0, which is currently rolling out and is expected to reach full availability by Friday, 27 June 2026.
Source: https://github.com/OfficeDev/office-js/issues/6774

Recommended action: Update Outlook for Android to version 5.2624.0 once it becomes available on your device.We will update this page once version 5.2624.0 has reached full rollout and the issue is confirmed resolved.

We will update this page once version 5.2624.0 has reached full rollout and the issue is confirmed resolved.

We are aware of an issue affecting the Hoxhunt add-in on Outlook for Android version 5.2623.0. Users on this version will be unable to use the add-in, as it fails to load due to a Microsoft Office.js initialisation error. This appears to affect all Office add-ins on this version, not just Hoxhunt.

Impact: Users running Outlook for Android version 5.2623.0 cannot report phishing simulations or emails via the Hoxhunt add-in.

Root cause: This is caused by a regression in Microsoft's Outlook for Android release 5.2623.0. The issue has been reported to Microsoft and is being tracked on the Office.js GitHub issue tracker.

Workaround: If possible, downgrade to Outlook for Android version 5.2617.1 or earlier, where the add-in works as expected.

We are monitoring the situation and will update this page when Microsoft releases a fix.