What you need to do to add Outlook Classic to Intune

To add Outlook Classic (the desktop version of Outlook, not Outlook on the web) to Intune, you upload it as a line-of-business app through the Microsoft Intune admin center. This means treating Outlook as an internal application rather than pulling it from the Microsoft Store. The process involves creating the app entry in Intune, uploading the installer file, and then assigning it to user groups or devices.

Most organizations do this when they need to control which version of Outlook deploys to managed devices, or when they want Outlook to install automatically alongside other corporate software. If your company uses Intune to manage Windows devices, this is the standard way to push Outlook Classic out to users who need it.

Key Takeaways

  • You add Outlook Classic to Intune by uploading it as a line-of-business app, not by searching for it in a public app store.
  • You need the Outlook installer file (.exe or .msi) on your computer before you start, which you can obtain from your Microsoft licensing portal or internal software repository.
  • The upload happens in the Microsoft Intune admin center under Apps, where you create a new app entry and attach the installer.
  • After upload, you assign the app to security groups or devices so that Intune knows which users or machines should receive it.
  • Installation on the target device happens automatically during the next Intune sync, which usually occurs within 15 minutes but can take up to an hour.

Get the Outlook installer file first

Before you open Intune, you need the actual Outlook installer on your computer. This is typically an .exe or .msi file. If your organization has a software repository or deployment server, download Outlook from there. If not, you can get it from the Microsoft 365 admin center or your organization's licensing portal.

The file size is usually between 500 MB and 1 GB depending on the version. Make sure you download the version your organization uses — for example, Outlook 2021 or Outlook from Microsoft 365 Apps. Save it somewhere you can find it again, like your Downloads folder or a shared drive your team uses.

Sign in to the Intune admin center and create the app

Open a web browser and go to https://intune.microsoft.com. Sign in with your admin account. Once you are logged in, look for the left sidebar menu and click Apps.

Under Apps, click All apps, then click the + Add button near the top. A menu will appear asking you to choose an app type. Select Windows app (Win32) — this is the category for desktop applications like Outlook Classic.

Upload the installer and fill in app details

After you select Windows app (Win32), Intune will ask you to upload the app package. Click Select app package file and browse to the Outlook installer you downloaded earlier. Select it and click Open. Intune will upload the file — this can take a few minutes depending on file size and your internet connection.

Once the upload finishes, you will see a form asking for app information. Fill in the fields as follows:

  • Name: Type "Outlook Classic" or "Microsoft Outlook" — use something your users will recognize.
  • Description: Type something like "Outlook desktop email client for corporate email" so users know what this app does.
  • Publisher: Type "Microsoft Corporation".
  • App version: You can leave this blank or type the version number if you know it (for example, "16.0").

Click Next to move to the Program section.

Set the installation command and detection rules

In the Program section, you will see a field labeled Install command. This tells the device how to run the installer silently in the background. For most Outlook .exe installers, type:

setup.exe /configure OutlookConfig.xml

If you are using an .msi file instead, type:

msiexec /i outlook.msi /quiet /norestart

The exact command depends on your installer type — if you are unsure, check with your IT department or the documentation that came with your Outlook installer file.

Leave the Uninstall command field as is unless your organization has a specific removal process. Click Next to reach the Detection rules section.

In Detection rules, Intune needs to know how to verify that Outlook installed correctly. Click + Add under Detection rules. Select Registry as the rule type. Set the following:

  • Key path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
  • Value name: Leave blank.
  • Detection method: Select "Registry key exists".

This tells Intune to check the Windows registry to confirm Outlook is installed. Click OK, then click Next.

Assign the app to users or devices

You are now in the Assignments section. This is where you decide who gets Outlook. Click + Add group under the Required section. A panel will open showing your organization's security groups. Select the group that contains the users or devices that need Outlook — for example, "Sales Team" or "All Employees".

If you want to make Outlook optional so users can install it themselves, add a group under the Available section instead. For most organizations, Outlook goes in the Required section so it installs automatically.

Click Select to confirm your choice, then click Next.

Review and create the app entry

The final screen shows a summary of everything you entered — the app name, installation command, detection rules, and assigned groups. Review this information to make sure it is correct. If you need to change something, click Back to return to that section.

Once everything looks right, click Create. Intune will save the app entry and begin preparing it for deployment. You will see a confirmation message, and the app will appear in your All apps list.

Outlook will start installing on assigned devices during their next Intune sync. Most devices sync within 15 minutes, but it can take up to an hour. Users do not need to do anything — the installation happens in the background.

Frequently Asked Questions

How long does it take for Outlook to install after I assign it?

Intune syncs with devices roughly every 15 minutes, but it can take up to an hour. Once the device receives the assignment, the actual Outlook installation usually takes 10 to 20 minutes depending on the device's speed and internet connection. Users will see a progress notification during installation.

What if the installation fails on some devices?

Check the device's Intune status in the admin center. Go to Devices, select the device, and look at the app installation status. Common failures are missing prerequisites (like .NET Framework), insufficient disk space, or conflicting software. You can also check the device's event logs for error messages related to the installation.

Can I push Outlook to only certain devices instead of user groups?

Yes. Instead of assigning to a user group, you can assign to a device group. In the Assignments section, click + Add group and select a device group instead of a user group. This is useful if you want Outlook on specific computers but not others.

Do I need to uninstall Outlook from devices before deploying it through Intune?

No. If Outlook is already installed, Intune will typically upgrade it to the version you are deploying or leave it as is if the versions match. If you want to force a clean installation, you can create an uninstall assignment first, wait for it to complete, then assign the new version.

What happens if a user uninstalls Outlook after Intune installs it?

If the app is in the Required section, Intune will reinstall it during the next sync cycle. If it is in the Available section, Intune will not reinstall it automatically — the user can reinstall it themselves through the Company Portal app if needed.