Maestro Labs incident

Office add-in disappeared from Microsoft Marketplace and the in-product Outlook add-ins store.

Critical Resolved View vendor source →

Maestro Labs experienced a critical incident on March 19, 2026 affecting Outlook Add-In, lasting 1d 12h. The incident has been resolved; the full update timeline is below.

Started
Mar 19, 2026, 07:47 AM UTC
Resolved
Mar 20, 2026, 08:41 PM UTC
Duration
1d 12h
Detected by Pingoru
Mar 19, 2026, 07:47 AM UTC

Affected components

Outlook Add-In

Update timeline

  1. investigating Mar 19, 2026, 07:47 AM UTC

    The MailMaestro Add-in disappeared from the Outlook Ribbon and the Microsoft Marketplace. The store listing is not available and the Add-In can't be used right now

  2. investigating Mar 19, 2026, 07:48 AM UTC

    We are continuing to investigate this issue.

  3. investigating Mar 20, 2026, 08:39 PM UTC

    Microsoft resolved the issue and the Add-In appears in the Marketplace again

  4. resolved Mar 20, 2026, 08:41 PM UTC

    This incident has been resolved.