Failed deliveries (NDR)
GET
/v1/ndr/countsNDR counts
One number per tab, so you can badge a queue without pulling every page of it. The keys are the same tab values GET /v1/ndr accepts, so you can drive both the badge and the link from one response.
Responses
| Status | Meaning |
|---|---|
| 200 | {<tab>: n, …} — one key per tab. |