dnspeek (Tanod) email verification
dnspeek (Tanod) email verification: syntax, MX / null MX, disposable, role and free-provider checks from DNS only; the mail server is never contacted. Read-only.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
220 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://tanod.dev/v1/email/verify
| Category | Everything else |
|---|---|
| Provider host | tanod.dev |
| Networks | eip155:137, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.002 | 220 ms |
Example input (from the provider)
{
"body": {
"email": "postmaster@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"email": {
"description": "The email address to check.",
"maxLength": 320,
"minLength": 1,
"type": "string"
}
},
"required": [
"email"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"disposable": {
"type": "boolean"
},
"domain": {
"type": [
"string",
"null"
]
},
"email": {
"type": "string"
},
"free_provider": {
"type": "boolean"
},
"has_mx": {
"type": "boolean"
},
"implicit_mx": {
"type": "boolean"
},
"local_part": {
"type": [
"string",
"null"
]
},
"mx_hosts": {
"items": {
"type": "string"
},
"type": "array"
},
"normalized": {
"type": [
"string",
"null"
]
},
"notes": {
"type": "array"
},
"null_mx": {
"type": "boolean"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"role_account": {
"type": "boolean"
},
"smtp_checked": {
"type": "boolean"
},
"syntax_valid": {
"type": "boolean"
},
"verdict": {
"enum": [
"deliverable_likely",
"undeliverable",
"risky",
"unknown"
],
"type": "string"
}
},
"required": [
"email",
"normalized",
"syntax_valid",
"domain",
"has_mx",
"mx_hosts",
"null_mx",
"disposable",
"role_account",
"free_provider",
"verdict",
"reasons",
"smtp_checked"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}