RUA and RUF reports
The aggregate and forensic report addresses in a DMARC record.
RUA points mailbox providers to the address that should receive aggregate DMARC XML reports. RUF points to forensic failure reports, which many mailbox providers limit or do not send because they can expose message details. Most teams start with RUA reporting and use a DMARC monitor to parse it.
reading this as teams choosing a transactional API
Judged purely as an API. What the request contract guarantees on retry, how complete the webhook event coverage is, whether suppressions are readable and writable programmatically, and how much the message log retains when something needs debugging in production.
Applied to rua and ruf reports, that means weighing idempotency keys, webhook coverage, event stream, and operating track record ahead of the rest, against high-frequency programmatic sends where a missed delivery is a product failure.