Mail Hub can record first-party events such as pricing views, demo requests, form submissions, product activation and content downloads.
Use the organization signal source JavaScript on an approved website or send events through an API token with signals:write.
Anonymous activity stays anonymous unless an event contains an email address that already belongs to a contact in the same organization.
Privacy: disclose analytics/intent collection where required and do not use the endpoint to ingest hidden or unlawfully obtained personal data.