Our users that use HubSpot track all emails sent from PersistIQ in their HubSpot account.
You can do that by putting your HubSpot email address into the bcc field of the PersistIQ campaigns.
Additionally, we integrate with Zapier so if there is something more granular that you're looking to do we can likely do. Let us know! We have many HubSpot users and have likely already seen your desired workflow.