If you manage Microsoft 365 for your team, you can deploy the Xakia Outlook add-in to everyone at once from the Office 365 admin center, the same way you'd deploy any other Microsoft add-in. Your users won't have to install anything themselves.
In the Microsoft 365 admin center, go to Settings › Integrated Apps.
Click Get Apps.
In the search bar at the top, search for Xakia.
Click Get it now.
Choose who to deploy to under Assign Users.
Once you've deployed it, the add-in appears in Outlook automatically for the users you selected. There's nothing for them to download or install.
If the add-in doesn't appear for your users after deployment, check whether any security policies, either across the organization or on individual accounts, are blocking access to the Microsoft add-in store or the use of Outlook add-ins.

