suppress-ghost-contacts

To suppress ghost contacts for email deliverability, identify contacts with delivered emails but zero opens using HubSpot Contacts Search API, export a CSV for auditing, create a dynamic list, and manually set their marketing status to non-marketing via the UI.

A ghost contact in HubSpot is a record that has received marketing emails but never opened any, with null bounce data. Suppressing these unengaged contacts protects sender reputation by removing unresponsive recipients from future sends.

To find HubSpot contacts who never opened an email via the API, query the Contacts Search endpoint using the NOT_HAS_PROPERTY filter for the email open property, ensuring you target records with delivered emails greater than zero and no bounces.

Yes, you can use a Python script with the requests library to audit unengaged contacts before suppressing them. The script queries the HubSpot API to verify the before state, exports a CSV audit trail, and checks the after state post-suppression.

Suppressing ghost contacts in HubSpot does not delete CRM data. The hybrid workflow uses API-based discovery and a manual UI action to set marketing contact status to non-marketing, preserving the records while excluding them from future email sends.

The best way to maintain ongoing cleanup of unengaged HubSpot contacts is creating a dynamic list named CLEANUP: Ghost Contacts. This list continuously filters records matching the NOT_HAS_PROPERTY criteria, driving ongoing suppression workflows without deleting CRM data.