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Install the Outlook add-in

You install the Outlook add-in from the Microsoft Store, right inside Outlook. Afterwards you find the CASUS button when reading and when writing an email.

At a glance

  • In the Microsoft Store the add-in is simply called CASUS.
  • Many firms deploy add-ins centrally in the Microsoft 365 admin center. Then CASUS is already there, or your IT approves it for you.

How it works

  1. 1
    In Outlook, click Get Add-ins or Apps.
  2. 2
    Search for CASUS and click Add.
  3. 3
    Open an email and click CASUS in the ribbon. The pin keeps the pane open.
  4. 4
    Sign in to the add-in as described in the article Connect your mailbox to CASUS.
    The Outlook add-in sign-in screen with the “Sign in” button

If it doesn't work

If CASUS can't be added, your IT has probably blocked add-ins. Ask them to approve it. If the button is still missing, quit Outlook completely and open it again.

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Still have questions?

Email us: contact@getcasus.com