Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho,
Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, OVH, IONOS...) from its MX and SPF records, plus corporate spam filters and other senders. For B2B sales and audits.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
324 msmedian answer time
$0.003listed price per call
$0.003price 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.vextorium.com/proveedor-email-pago
| Category | Everything else |
|---|---|
| Provider host | api.vextorium.com |
| 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 |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.003 | 324 ms |
Example input (from the provider)
{
"body": {
"dominio": "anthropic.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"dominio": {
"type": "string"
}
},
"required": [
"dominio"
]
},
"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": {
"dominio": {
"type": [
"string",
"null"
]
},
"envia_tambien_desde": {
"items": {
"type": [
"null",
"string"
]
},
"type": [
"array",
"null"
]
},
"filtro_antispam": {},
"mx": {
"items": {
"type": [
"null",
"string"
]
},
"type": [
"array",
"null"
]
},
"nota": {},
"otros_detectados": {
"items": {},
"type": [
"array",
"null"
]
},
"proveedor": {
"type": [
"string",
"null"
]
},
"recibe_correo": {
"type": [
"boolean",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}