Corporate deployment for on-premise Exchange Servers (OWA)

Before you start

Before starting the deployment process, check the system requirements for Shared Email Templates.

Deployment process

1. In Exchange Admin Center, enter you credentials and click sign in:
   
2. Go to organization → add-ins and click the Plus icon:
   
3. In the drop-down, pick Add from the Office Store:
   
4. You'll be brought to the Microsoft AppSource. Into the Search field, enter 'Shared Email Templates' and click on the suggested app:
   
5. On the Shared Email Templates page, click the Get it now button:
   
6. To proceed, you'll need to sign in to your Microsoft AppSource account:
   
7. Click Continue:
   
8. Here, click Yes:
   
9. And Yes again:
   
10. Finally, the app is added:
    
11. Go back to the Exchange admin center and click the Refresh icon:
    
12. You will see Shared Email Templates in the list. Stand on the app and click the Edit icon.
13. In the Edit Add-ins settings window, make sure to tick the Make this add-in available to users in your organization box. Besides, pick the user defaults and click Save:
    
14. Now, the user defaults in the list have changed to Mandatory.
15. To make sure the app is deployed, go to Outlook mailbox and start creating a new message. Click the Shared Email Templates icon below the message body field:
    
16. You may get a warning as in the screenshot below. In this case, first click OK and then RETRY:
    

Now the add-in is ready for work.