BrandMail Web Add-in Set-Up for Microsoft 365
Deploy BrandMail Web for your organisation through the Microsoft 365 admin centre. This article is for administrators who manage integrated apps.
Before you begin
Steps
Provide the manifest link
- Copy the BrandMail Web Download Url from the SOFTWARE UPDATE page.

- Open Integrated apps in the Microsoft 365 admin centre.
- Select Upload custom apps.
- Open the App type list.

- Select Office Add-in.

- Select Provide link to manifest file.

- Select the URL field below Provide link to manifest file.

- Enter the BrandMail Web manifest URL you copied.

- Select Validate.

- Select Next when Manifest file validated appears.

Assign users and finish deployment
- Select All users on the Add users page.

- Select Next.

- Select Accept permissions when prompted.
- Select Next to continue the deployment.
- Wait for Deployment completed to appear for BrandMail Web.

- Select Done.

Check it worked
BrandMail Web appears under Integrated apps with a status of OK. Microsoft 365 says the app can take up to 72 hours to appear, and users may need to relaunch Microsoft 365 to see it.