Retrieves delivery receipt reports from Elasticsearch. Supports scroll-based pagination.

Initial request: Provide feed_id, from_date, and to_date. The response includes a scroll_id if more data is available.

Pagination: Pass the scroll_id from the previous response to fetch the next page. No other parameters are needed when scrolling.

End of data: When the last page is reached, scroll_id is omitted from the response. If scrolled past the end, data returns as an empty array.

Constraints:

• Date range must not exceed 31 days.
• from_date must not be after to_date.
• All requested feed_id values must belong to the authenticated user.