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Scout Packs Mail Provider Lookup
x402
Scout Packs Mail Provider Lookup is a paid API for AI agents from scout-packs-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Identifies the email provider (e.g. Google Workspace, Microsoft 365) for a given domain by inspecting MX records and signals.
Price / call$0.01
Success—
StatusUnknown
How this service works
Verified B2B lead packs and per-lead enrichment lookups for agents. $0.01 per lookup or pack (demand probe). USDC on Base via x402. No account, API key, or subscription.
Output
Returns a JSON object containing the domain, detected email provider name (e.g. 'Google Workspace', 'Microsoft 365'), list of MX hosts, whether the domain uses an email gateway, whether multiple providers are detected, a confidence level ('high'/'medium'/'low'), and a receipt field confirming the lookup completed.
Example use cases
Qualify leads before outreach campaign
“Before I start my email campaign, can you check what mail provider hubspot.com uses? I need to know if it's Google Workspace or Microsoft so I can tailor my sending strategy.”
Detect email gateway for deliverability research
“Does salesforce.com route their email through a third-party gateway like Proofpoint or Mimecast? Check their mail provider and tell me if is_gateway comes back true.”
Enrich a prospect list with email infrastructure
“I have a prospect domain — notion.so — can you look up their email provider and confidence level so I can add that to my CRM record?”
Technical details
Endpoint
GEThttps://scout-packs-production.up.railway.app/mail-provider?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to identify the email provider or infrastructure behind a specific business domain — especially useful for B2B sales enrichment, deliverability research, or routing decisions before email outreach. Prefer this over raw DNS lookups when you want a parsed, human-readable provider name with confidence scoring rather than raw MX record strings.
Side effects
- Domain has no MX records — provider may be returned as unknown or empty
- Domain uses an obscure or self-hosted mail server not in the provider database — low confidence result
- Invalid or malformed domain input — may return an error or empty result
- Domain uses a forwarding-only setup — may be misidentified as a gateway
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "acme.com",
"gateway": "",
"receipt": "ok",
"signals": [],
"mx_hosts": [
"aspmx.l.google.com"
],
"provider": "Google Workspace",
"confidence": "high",
"is_gateway": false,
"multi_provider": false
}
}Tags
x402
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