[Global] Outlook add-ins might not work

This incident has been resolved.

We can confirm most of users are no longer affected by the issue. Some users might need to restart Outlook or refresh OWA to fully fix the problem.

The fix has been deployed. Some customers already notified us the problem is solved (so did our Q&A team and SOC). We are currently helping Microsoft monitor for any further issues.

The Outlook product group is currently deploying a fix to production. It should be available worldwide within 45 minutes.

Microsoft engineering team has reported: We have discovered an issue with the backend service that provides add-ins, and we have engaged the backend team to address this ASAP. We are making progress and will let you know as we get more information from them.

Just as a reminder - Outlook add-ins are currently affected due to a Microsoft issue, but server-side (cloud) signatures are added normally. Only signatures added by the Outlook add-in might not work.

Microsoft is currently experiencing a problem with Microsoft 365 add-ins. Some add-ins are not working or working intermittently for a subset of users. All add-ins may also completely disappear from the Microsoft store occasionally. This is a Microsoft issue, and it's not limited to CodeTwo since we observe that other add-ins (even Microsoft native add-ins) are also affected. As a result of this problem, CodeTwo signatures might not be added in Outlook (desktop, OWA and mobile).

Server-side (cloud) signatures are added normally. Only signatures added by the Outlook add-in might be affected.

We're currently investigating this with Microsoft.