Properties
| Name | Type | Description |
|---|---|---|
| tool | string | |
| query | object | The inputs after normalisation. |
| checked_at | string | When the lookups ran, ISO 8601 UTC. |
| duration_ms | integer | |
| status | string | Overall verdict. "error" means the check could not complete (timeout, SERVFAIL); it is never "pass" when a lookup the verdict needs failed. |
| findings | array | |
| name | string | |
| found_at | object | Domain whose _dmarc record applies; the organizational domain when the exact name has none (RFC 7489 §6.6.3). |
| record | object | |
| tags | object | |
| policy | object | The policy that applies to the domain asked about: sp= when the record was inherited and has one, p= otherwise. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/email-spam-tester-com/json-schema/email-spam-tester-com-dmarc-out-schema.json",
"title": "DmarcOut",
"x-generated": "2026-11-06",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/email-spam-tester-com-openapi.json#/components/schemas/DmarcOut",
"properties": {
"tool": {
"type": "string",
"title": "Tool"
},
"query": {
"additionalProperties": {
"type": "string"
},
"type": "object",
"title": "Query",
"description": "The inputs after normalisation."
},
"checked_at": {
"type": "string",
"title": "Checked At",
"description": "When the lookups ran, ISO 8601 UTC."
},
"duration_ms": {
"type": "integer",
"title": "Duration Ms"
},
"status": {
"type": "string",
"enum": [
"pass",
"warn",
"fail",
"error"
],
"title": "Status",
"description": "Overall verdict. \"error\" means the check could not complete (timeout, SERVFAIL); it is never \"pass\" when a lookup the verdict needs failed."
},
"findings": {
"items": {
"$ref": "#/$defs/Finding"
},
"type": "array",
"title": "Findings"
},
"name": {
"type": "string",
"title": "Name"
},
"found_at": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Found At",
"description": "Domain whose _dmarc record applies; the organizational domain when the exact name has none (RFC 7489 §6.6.3)."
},
"record": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Record"
},
"tags": {
"$ref": "#/$defs/DmarcTags"
},
"policy": {
"anyOf": [
{
"type": "string",
"enum": [
"none",
"quarantine",
"reject"
]
},
{
"type": "null"
}
],
"title": "Policy",
"description": "The policy that applies to the domain asked about: sp= when the record was inherited and has one, p= otherwise."
}
},
"type": "object",
"required": [
"tool",
"query",
"checked_at",
"duration_ms",
"status",
"findings",
"name",
"found_at",
"record",
"tags",
"policy"
],
"$defs": {
"DmarcTags": {
"properties": {
"v": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "V"
},
"p": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "P"
},
"sp": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Sp"
},
"np": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Np"
},
"pct": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Pct"
},
"adkim": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Adkim"
},
"aspf": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Aspf"
},
"rua": {
"anyOf": [
{
"items": {
"type": "string"
},
"type": "array"
},
{
"type": "null"
}
],
"title": "Rua"
},
"ruf": {
"anyOf": [
{
"items": {
"type": "string"
},
"type": "array"
},
{
"type": "null"
}
],
"title": "Ruf"
},
"fo": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Fo"
},
"ri": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Ri"
},
"rf": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Rf"
}
},
"type": "object",
"title": "DmarcTags"
},
"Finding": {
"properties": {
"code": {
"type": "string",
"title": "Code",
"description": "Stable identifier, e.g. spf.too_many_lookups. The English template for every code is in /i18n/tools/findings.en.json on the website."
},
"level": {
"type": "string",
"enum": [
"pass",
"info",
"warn",
"fail",
"error"
],
"title": "Level"
},
"params": {
"additionalProperties": true,
"type": "object",
"title": "Params",
"description": "Values the message is built from."
},
"message": {
"type": "string",
"title": "Message",
"description": "The English sentence, params filled in."
}
},
"type": "object",
"required": [
"code",
"level",
"params",
"message"
],
"title": "Finding"
}
}
}Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/email-spam-tester-com-dmarc-out"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.