curl --request POST \
  --url https://api.revenuebase.ai/v1/batch-process-email-status \
  --header 'Content-Type: application/json' \
  --header 'x-key: <api-key>' \
  --data '
{
  "process_id": 123
}
'

{
  "process_id": 123,
  "filename": "<string>",
  "current_status": "<string>",
  "message": "<string>"
}