Hey @Nicdm, thank you for posting in our Community!
You can manually adjust the width of the HubSpot add-in pane by dragging its border. This can help minimize its impact on your preview pane while still keeping the add-in accessible.
While it’s important to keep the HubSpot add-in open for your workflow, you might need to toggle it off occasionally to view specific emails fully. You can quickly reopen it when needed. Please, ensure that both Outlook and the HubSpot add-in are up to date. Sometimes updates include improvements to the user interface that can resolve issues like this.
Kindly,
Pam