Exclaimer Cloud Add-in not appearing within Outlook

Update timeline

1. investigating Mar 14, 2025, 05:00 PM UTC

   We are currently investigating an issue where end users are unable to see the Exclaimer Add-in within Outlook at this time. No updates to the add-in have been released. The Add-in will also show as deployed within the Integrated Apps menu in the 365 Admin Center If you not are able to see the Add-in within this menu, or experience any other issues with the Add-in, please raise a ticket to our Support team.

2. monitoring Mar 17, 2025, 09:39 AM UTC

   The Exclaimer Add-in now appears to be displaying within supported Outlook versions and applying signatures as expected. If you are continuing to see issues with the Add-in not appearing within Outlook please check your deployment settings within the Microsoft 365 admin centre, or contact our Support team for assistance.

3. resolved Mar 19, 2025, 03:04 PM UTC

   After extended monitoring, Exclaimer can confirm that the Add-in is now appearing within Outlook and Outlook on the Web as expected for our customers. The cause of the Add-in not appearing within Outlook looks to have been due to an issue within the AppSource deployment system provided by Microsoft that the Exclaimer Add-in is recommended to be deployed through. We also note that other service providers reported issues with Add-ins not appearing as expected for end users within Microsoft 365. If you are continuing to experience issues with your Add-in, please reach out to our Support team for assistance.