Check one email address or domain
Check one email address or domain. Report common address syntax, MX or null MX and A/AAAA fallback, SPF, exact-domain DMARC and optional caller-supplied DKIM selector records, and a small known disposable-domain list. DNS failures remain unknown. Does not verify a mailbox or predict delivery.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
2888 msmedian answer time
$0.002listed price per call
$0.002price 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.mekler.ai/v1/email/domains/check-mail-configuration
| Category | Everything else |
|---|---|
| Provider host | api.mekler.ai |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 8 from 8 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.002 | 2888 ms |
Example input (from the provider)
{
"body": {
"kind": "domain",
"value": "example.org"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"kind": {
"enum": [
"email",
"domain"
],
"type": "string"
},
"selector": {
"maxLength": 100,
"minLength": 1,
"type": "string"
},
"value": {
"maxLength": 320,
"minLength": 1,
"type": "string"
}
},
"required": [
"kind",
"value"
],
"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"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"disposable": {
"type": "string"
},
"dkim": {
"type": "object"
},
"dmarc": {
"type": "object"
},
"domain": {
"type": "string"
},
"mail_route": {
"type": "object"
},
"mailbox_exists": {
"type": "string"
},
"schema_version": {
"type": "string"
},
"service": {
"type": "string"
},
"spf": {
"type": "object"
},
"syntax": {
"type": "string"
}
},
"required": [
"service",
"schema_version",
"domain",
"syntax",
"mail_route",
"spf",
"dmarc",
"dkim",
"disposable",
"mailbox_exists"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}