---
title: "Delivery outcomes per recipient domain"
method: GET
path: "/api/v1/deliverability/domains"
tags: ["Deliverability"]
---

# Delivery outcomes per recipient domain

`GET /api/v1/deliverability/domains`

## Request

- Base URL: `https://api.sendly.now`
- URL: `https://api.sendly.now/api/v1/deliverability/domains`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `better-auth.session_token`
  - OAuth 2 (authorization code, authorization URL `https://app.sendly.now/api/auth/oauth2/authorize`, token URL `https://app.sendly.now/api/auth/oauth2/token`, scopes: `deliverability:read`)

Sent, delivered, bounced, complained and opened counts split by the RECIPIENT's domain and by UTC day, newest day first.

This is the axis `diagnose` cannot report: its `recent_delivery` is project-wide, because an email row records no sending domain. A project-wide bounce rate hides the case that matters most — one recipient domain refusing almost everything while the rest is healthy.

The counts are maintained by an hourly job over a rolling 30-day window, NOT computed on request; `computed_at` on each row says when it was last rebuilt. No rate is published: a rate over three sends is not information, and the counts let you apply your own threshold.

Requires the `deliverability:read` scope — Check why mail from one of your domains is not arriving.

## Query parameters

- `limit` integer
- `after` string: Opaque cursor from a previous response's `next_cursor`.
- `days` integer: How far back to read. 1-30 days; defaults to 30, which is the window the job maintains.
- `domain` string: Restrict to one recipient domain.

## Response `200`

Cursor-paginated recipient-domain rollup

- RecipientDomainStatsV1List: Cursor-paginated recipient-domain rollup, newest day first.
  - `data` RecipientDomainStatsV1[], required
    - `bounced` integer, required
    - `complained` integer, required
    - `computed_at` string, date-time, required: When the rollup job last rebuilt this row. These counts are a CACHE, refreshed hourly.
    - `day` string, required: The UTC day these counts cover, as `YYYY-MM-DD`.
    - `delivered` integer, required
    - `domain` string, required: The recipient's domain, lowercased: the part after the `@`.
    - `opened` integer, required
    - `sent` integer, required
  - `has_more` boolean, required
  - `next_cursor` string, nullable, required: Pass as `after` to fetch the next page. `null` on the last page.

## Other responses

- `401`: `invalid_api_key` or `invalid_session` — missing or invalid credentials.
- `403`: `scope_missing`, `project_access_denied`, or `project_disabled`.
- `422`: `validation_error` — query, path, or body parameters did not match the schema.
- `429`: `rate_limited` — see `Retry-After` and the `RateLimit` headers.
- `500`: `internal_error`.

---

[API](https://skmtc.dev/sendly/apis/sendly-api.md) · [All operations](https://skmtc.dev/sendly/apis/sendly-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sendly/apis/sendly-api/revisions/ce7cfb7f7c7e?raw)