The standard HubSpot lookup in Clay only searches primary email addresses, but you can query additional email fields using the HTTP API enrichment. Set up a POST request to [api.hubapi.com](https://api.hubapi.com/crm/v3/objects/contacts/search) with search criteria that includes both primary and additional email properties in the request body, such as "email": "[email]" OR "hs_additional_emails": "[email]". This endpoint allows you to search across all email fields in a single API call. You'll need your HubSpot API key and should be aware of different rate limits compared to the standard lookup function.
February 2026