# Unset contact email addresses Use this function to unset all contact email address for an account. To set contact email address(es), call . Endpoint: GET /ContactInformation/unset_email_addresses Version: 11.134.0.5 Security: BasicAuth ## Query parameters: - `old_address` (array, required) The account’s existing contact email addresses. If this list does not match the account’s current current email address(es), then the request will fail. This control is here to prevent race conditions. Example: ["old1@example.com"] - `password` (string, required) The account’s password. Example: "q1df%D9