Email Auth SPF/DMARC/DKIM Check
Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.
Offering
- Provider
- email-auth.use.x402atlas.com
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Security
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://email-auth.use.x402atlas.com/check- MIME type
- application/json
- First seen
- 2026-10-16T01:50:06.715Z
- Last seen
- Tags
- Email, SPF, DMARC, dkim, deliverability, Security
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.01 USDC
Atomic price: 10000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 3
- 0.01 USDC
Atomic price: 10000 · Network: eip155:42161 · Asset: USDC · Scheme: exact - Payment option 4
- 0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "10000",
"payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0"
},
{
"scheme": "exact",
"network": "eip155:42161",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "10000",
"payTo": "0x3731f5C2c1835E3aCe2AC157c4e31b1cEA0CB0e0"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "10000",
"payTo": "3nXsChcZGke6xebDPmndNMCt8L3yi6xyN4Pd6q5cQrgv"
}
]Observed health
- Status
- Healthy
- Latest latency
- 13 ms
- Average latency
- 13 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 12 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"domain": {
"description": "Domain to check — hostname only, no scheme/IP literal, no trailing dot, no localhost, no local/internal/reserved suffix (.local, .internal, .localdomain, .lan, .test)",
"maxLength": 253,
"pattern": "^[A-Za-z0-9-]{1,63}(\\.[A-Za-z0-9-]{1,63})*$",
"type": "string"
},
"selector": {
"description": "Optional DKIM selector to check authoritatively; if omitted, a common-selector list is probed",
"type": "string"
}
},
"required": [
"domain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}Output schema
{
"properties": {
"example": {
"properties": {
"accepts_mail": {
"description": "true when the domain has at least one MX record",
"type": "boolean"
},
"dkim": {
"properties": {
"checked_selectors": {
"description": "exact selectors probed",
"items": {
"type": "string"
},
"type": "array"
},
"found": {
"items": {
"properties": {
"record": {
"type": "string"
},
"selector": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"dmarc": {
"description": "null when no DMARC record is present",
"properties": {
"adkim": {
"default": "r",
"enum": [
"r",
"s"
],
"type": "string"
},
"aspf": {
"default": "r",
"enum": [
"r",
"s"
],
"type": "string"
},
"pct": {
"default": 100,
"maximum": 100,
"minimum": 0,
"type": "integer"
},
"policy": {
"description": "p= tag; empty when missing/invalid",
"enum": [
"none",
"quarantine",
"reject",
""
],
"type": "string"
},
"record": {
"type": "string"
},
"rua": {
"description": "aggregate report addresses",
"items": {
"type": "string"
},
"type": "array"
},
"ruf": {
"description": "forensic report addresses",
"items": {
"type": "string"
},
"type": "array"
},
"subdomain_policy": {
"description": "sp= tag; empty when absent (inherits policy)",
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"domain": {
"type": "string"
},
"mx": {
"items": {
"properties": {
"host": {
"type": "string"
},
"pref": {
"maximum": 65535,
"minimum": 0,
"type": "integer"
}
},
"type": "object"
},
"type": "array"
},
"queried_at": {
"format": "date-time",
"type": "string"
},
"spf": {
"description": "null when no SPF record is present",
"properties": {
"all_qualifier": {
"description": "qualifier on the all mechanism; empty when absent",
"enum": [
"-all",
"~all",
"?all",
"+all",
""
],
"type": "string"
},
"dns_lookups": {
"description": "count of lookup-causing terms; RFC 7208 limit is 10",
"minimum": 0,
"type": "integer"
},
"mechanisms": {
"items": {
"properties": {
"causes_dns": {
"type": "boolean"
},
"kind": {
"enum": [
"include",
"a",
"mx",
"ip4",
"ip6",
"all",
"exists",
"ptr",
"redirect",
"exp",
"unknown"
],
"type": "string"
},
"qualifier": {
"enum": [
"+",
"-",
"~",
"?"
],
"type": "string"
},
"value": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"record": {
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"warnings": {
"description": "human-readable posture advisories; never null",
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"domain",
"queried_at",
"accepts_mail",
"mx",
"spf",
"dmarc",
"dkim",
"warnings"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}