Email domain check
Email domain check: whether a domain can receive mail (MX/A, null MX), is disposable or a free provider, likely typo, SPF/DMARC/DKIM posture and registration age. Use when an agent needs to vet a company or sender domain rather than a specific mailbox. One domain per call.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
655 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://softbot-emailcheck-mainnet.softbot.workers.dev/v1/domain
| Category | Company and compliance |
|---|---|
| Provider host | softbot-emailcheck-mainnet.softbot.workers.dev |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| 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 |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.002 | 655 ms |
Example input (from the provider)
{
"body": {
"domain": "grokbot.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"domain": {
"description": "Single domain, e.g. example.com",
"type": "string"
}
},
"required": [
"domain"
],
"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": {
"auth": {
"type": "object"
},
"disposable": {
"type": "boolean"
},
"dns": {
"type": "object"
},
"domain": {
"type": "string"
},
"domain_age": {
"type": "object"
},
"free_provider": {
"type": "boolean"
},
"reasons": {
"items": {
"properties": {
"code": {
"type": "string"
},
"detail": {
"type": "string"
},
"severity": {
"enum": [
"info",
"warn",
"fail"
],
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"typo_suggestion": {
"type": [
"string",
"null"
]
},
"verdict": {
"enum": [
"deliverable_likely",
"risky",
"invalid"
],
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}