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Get email authentication standing for a sending domain

GET
/v1/email/inbox-insights/authentication
// Requires Insights preview access for the organization.
let sendingDomain: string | undefined;
for await (const domain of bird.email.inboxInsights.domains.list({ search: "mail.example.com" })) {
  if (domain.domain === "mail.example.com") { sendingDomain = domain.domain; break; }
}
if (!sendingDomain) throw new Error("Verify mail.example.com in this workspace first");
const report = await bird.email.inboxInsights.authentication({ sending_domain: sendingDomain });
console.log(report);
Respons200
{
  "resource": "placement",
  "domain": "mail.acme.com",
  "measurement": {
    "sources": [
      "panel",
      "intelliseed_public"
    ],
    "weighting": {
      "weight_set_id": "12",
      "source": "account",
      "basis": "weighted-mean-of-per-isp-rates"
    }
  },
  "generated_at": "2026-08-18T09:34:00Z",
  "freshness": {
    "as_of": "2026-08-17",
    "lag_hint": "daily"
  },
  "cached_at": "2026-08-18T09:40:02Z",
  "window": {
    "start": "2026-08-12",
    "end": "2026-08-18",
    "group_by": "day"
  },
  "compared_to": {
    "start": "2026-06-19",
    "end": "2026-07-18"
  },
  "spf": {
    "pass_rate_percent": 99.8,
    "delta_pts": 0.1,
    "source": "dmarc_rua",
    "status": "ok"
  },
  "dkim": {
    "pass_rate_percent": 99.8,
    "delta_pts": 0.1,
    "source": "dmarc_rua",
    "status": "ok"
  },
  "dmarc": {
    "aligned_rate_percent": 98.6,
    "policy": "quarantine",
    "ready_for_reject": false,
    "readiness_reasons": [
      "source_below_threshold"
    ],
    "delta_pts": -0.2,
    "source": "dmarc_rua",
    "status": "ok"
  },
  "sources": {
    "items": [
      {
        "name": "Bird (mail.acme.com)",
        "category": "esp",
        "volume": 4820000,
        "spf_aligned_rate_percent": 99.8,
        "dkim_aligned_rate_percent": 99.9,
        "dmarc_pass_rate_percent": 99.9,
        "verdict": "aligned",
        "qualifies_for_readiness": true
      }
    ],
    "latest_data_date": "2026-08-15",
    "status": "ok"
  }
}

Returns whether the domain's mail authenticates and who sends as the domain: SPF and DKIM pass rates, the DMARC standing with its published policy and a conservative ready-for-reject judgement, and a per-source table showing every system observed sending under the domain's name, forwarders and unidentified senders included.

The DMARC figures name their source: authoritative aggregate reporting that covers every sender, or Google Postmaster as a fallback covering only mail Google received. Aggregate reports arrive on reporters' own schedules, routinely a day or more behind, so the source table names its latest included day; label from it rather than reading the newest days' sparseness as a regression. For a domain with neither reporting source configured, sections report not_configured with a setup path, not an error.

API-key calls require Insights preview access for your organization.

Parameter Kueri

sending_domainstring

The sending domain to report on: one of the workspace's verified sending domains, exactly as it appears there. A domain that is not verified in this workspace answers not-found.

fromstring

First UTC day of the period, inclusive, in YYYY-MM-DD: the same window convention as the email statistics endpoints. Defaults to 30 days before to.

It may be at most 30 days before to, which is also the default, so a request naming neither date is already at the limit. Asking for more answers 422: the page pairs these figures with Bird's own per-provider sending statistics, and those are kept for 30 days, so a longer period could only describe two different spans side by side.

tostring

Last UTC day of the period, inclusive, in YYYY-MM-DD. Defaults to today.

comparestring

Include the prior equal-length period, populating compared_to.

Possible values: previous_period

Payload Respons

resource
string
wajib

Which resource this response is, echoed for self-description.

domain
string
wajib

The sending domain the figures describe.

measurement
object

How the figures were measured. Present only where a figure was weighted or drawn from a named set of sources, which today means placement and the industry benchmark. Absent on the reputation resources and on a live lookup, neither of which weights anything.

Tampilkan atribut turunan
generated_at
string
wajib

When these figures were computed. The measurement service's own stamp where it publishes one; on the resources Bird derives from daily rates it has none to publish, and this is when Bird computed them.

freshness
object
wajib

How current the figures are. Freshness differs per resource (authentication data can lag a day or more while blocklist lookups are near real time), so any "as of" label binds from this field, never from a fixed string.

Tampilkan atribut turunan
cached_at
string

Present when the response was served from a short-lived copy rather than fetched for this request: when that copy was fetched.

window
object
wajib

The period every figure in the response covers: whole UTC calendar days, inclusive on both ends. The same window convention the email statistics endpoints use, so figures from the two sources describe the same days and can be combined without adjustment.

Tampilkan atribut turunan
compared_to
object

The prior equal-length period the delta figures compare against. Present only when the request asked for a comparison.

Tampilkan atribut turunan
spf
object
wajib

The domain's SPF pass rate.

Tampilkan atribut turunan
dkim
object
wajib

The domain's DKIM pass rate.

Tampilkan atribut turunan
dmarc
object
wajib

The domain's DMARC standing over the period.

Tampilkan atribut turunan
sources
object
wajib

Every system observed sending as this domain, with how each authenticates. This is the table that shows who else sends under the domain's name.

Tampilkan atribut turunan
sources.items
array of object
wajib

One row per observed sending source.

Tampilkan atribut turunan
sources.items.name
string
wajib

The sending source as the reporting identifies it. Not a fixed list: unidentified senders, mostly forwarders, appear as a real category.

sources.items.category
nullable string
wajib

A coarse classification of the source. The set can grow; treat values as labels. Null when the measurement did not classify this sender.

Possible values (may grow over time): esp, unknown

sources.items.volume
integer
wajib

Messages the reporting attributes to this source over the period.

sources.items.spf_aligned_rate_percent
nullable number
wajib

Share of this source's mail that passed SPF with alignment, as a percentage.

sources.items.dkim_aligned_rate_percent
nullable number
wajib

Share of this source's mail that passed DKIM with alignment, as a percentage.

sources.items.dmarc_pass_rate_percent
nullable number
wajib

Share of this source's mail that passed DMARC, as a percentage.

sources.items.verdict
string
wajib

How a sending source's mail authenticates against the domain's DMARC policy. aligned passes with both SPF and DKIM aligned; dkim_only and spf_only pass on one mechanism; fails_policy passes neither. The reporting decides this set and can add to it, so treat an unrecognised value as a label to show rather than a case to exhaust. A source whose verdict is new still belongs in the table.

Possible values (may grow over time): aligned, dkim_only, spf_only, fails_policy

sources.items.qualifies_for_readiness
boolean
wajib

Whether this source counts toward the reject recommendation. A source that does not is excluded from that judgement, which is what lets this table explain a conservative recommendation instead of contradicting it.

sources.latest_data_date
nullable string
wajib

The most recent UTC day the source reporting includes. Aggregate DMARC reports arrive on reporters' own schedules, routinely a day or more behind, so the newest days look sparse; label from this date rather than treating the dip as a regression.

sources.status
string
wajib

Whether a section of the response carries figures, and when it does not, why.

ok means the section is populated. no_data means the measurement ran and observed nothing to report for this domain in the period. not_configured means the section needs a setup step that has not been completed yet, such as connecting Google Postmaster Tools; treat it as an invitation to finish setup rather than a fault. unavailable means the figures could not be retrieved this time and the same request may well succeed on a retry; the rest of the response is unaffected. not_applicable means the section is meaningless for this domain in this period, so there is nothing to show or fix.

A successful response never implies every section is populated; read each section's status rather than assuming figures are present.

Possible values: ok, no_data, not_configured, unavailable, not_applicable