@YoungShatner Try visiting Settings / Integrations / Email Integrations in your portal. Then, after you’ve connected your inbox to O365 you should have a tab for extensions. One of the options there should be for HubSpot Sales Add-In for Office 365. I think this link is more updated: https://knowledge.hubspot.com/articles/kcs_article/settings/how-to-install-hubspot-sales#addin