Run the mail configuration check (MX, SPF, DMARC) on up to 20 domains in one req
Run the mail configuration check (MX, SPF, DMARC) on up to 20 domains in one request. Results keep the input order, and items that fail for a technical reason come with a token for a free retry. Use when an agent must audit many domains at once, for example a customer list or a portfolio of brands.
Answeringour last check, 2026-10-31
3 of 3checks answered this week
372 msmedian answer time
$0.048listed price per call
$0.048price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.lookproof.dev/v1/mail/check/bulk
| Category | Code and developer |
|---|---|
| Provider host | api.lookproof.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.048 | 384 ms |
| 2026-10-29 | valid payment request | 402 | $0.048 | 372 ms |
| 2026-10-27 | valid payment request | 402 | $0.048 | 358 ms |
Example input (from the provider)
{
"body": {
"domains": [
"example.com",
"example.org"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"domains": {
"items": {
"examples": [
"example.com"
],
"maxLength": 1024,
"minLength": 1,
"type": "string"
},
"maxItems": 20,
"minItems": 1,
"title": "Domains",
"type": "array"
}
},
"required": [
"domains"
],
"title": "BulkDomainsInput",
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}