Last updated on: January 07, 2026
iMIS Power Suite - Outlook Integration
iMIS Outlook Integration: Deployment
Important! This guide applies only to Office 365 and Exchange administrators. If you are not an Office365 or Exchange administrator, see the end-user installation guide instead.
For information on Shared Mailboxes, see iMIS Outlook Integration User Installation.
Follow the instructions on this page to set up organization-wide (optional or mandatory) deployment of iMIS Outlook Integration.
Only complete this step once you've received your Cloud ID and set up your Cloud Dashboard.
Configuring the Add-in in Microsoft 365 Admin Center
To configure the iMIS Outlook Integration add-in in the Microsoft 365 Admin Center, do the following:
- Go to the Microsoft 365 Admin Center.
- Go to Settings > Integrated Apps.
- Click Upload custom apps.

- Change App type to Office Add-in.
- Select Provide a link to manifest file and paste
https://cdn.cloud.csiinc.com/officeapps/iemail.xmlinto the field. - Click Validate and ensure the response says Manifest file validated.
- Click Next.
- Decide how to deploy iMIS Outlook Integration to your organization by specifying Entire Organization or specifying certain Users or groups.
- On the Accept permissions requests screen, click Next.
- On the Review and finish deployment screen, verify the details are correct, and click Finish deployment.
The add-in is now installed for your organization.
Post-Deployment
Depending on the Deployment Method used, users will need to Add iMIS Outlook Integration to their Outlook after the deployment.
Do the following:
- Click on Add Apps.

- Search for iMIS for Outlook.
- Select Add to add it to Outlook.