Validate email syntax, domain and MX records for basic automated checks without
Validate email syntax, domain and MX records for basic automated checks without SMTP mailbox verification.
Answeringour last check, 2026-09-28
1 of 1checks answered this week
565 msmedian answer time
$0.005listed price per call
$0.005price 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://relay.straelo.com/email-validator/basic
| Category | Everything else |
|---|---|
| Provider host | relay.straelo.com |
| 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 |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.005 | 565 ms |
Example input (from the provider)
{
"body": {
"email": "agent@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"email": {
"description": "Email address for syntax, domain and MX validation.",
"format": "email",
"type": "string"
}
},
"required": [
"email"
],
"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": {
"properties": {
"domain": {
"type": [
"string",
"null"
]
},
"mx_found": {
"type": [
"boolean",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"valid": {
"type": "boolean"
}
},
"required": [
"valid",
"domain",
"mx_found",
"reasons"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}