Look up a domain’s MX and DMARC records

POST /v1/email-domain

Look up a domain’s MX and DMARC records

Inspect mail routing and the presence of a DMARC TXT declaration before configuring a domain.

3 credits · USD $0.003

Input schema

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 253,
      "x-maxUtf8Bytes": 253
    }
  },
  "required": [
    "domain"
  ]
}

Request

curl -X POST 'https://staging.callmint.dev/v1/email-domain' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Idempotency-Key: unique-request-001' \
  -H 'Content-Type: application/json' \
  -d '{"domain":"example.org"}'

Response result

{
  "domain": "example.org",
  "mx": [
    "0 ."
  ],
  "dmarc": [],
  "note": "DNS records only; does not verify a mailbox, SPF or DMARC policy correctness."
}

Limitations

Uses a fixed Cloudflare DNS-over-HTTPS resolver, never the supplied domain as an HTTP destination. Maximum 20 records per result and 32 KB per DNS response. NXDOMAIN/no records is successful data and billed. Resolver errors/timeouts are not billed. Does not verify mailbox existence, SPF or DMARC policy validity. DNS examples are illustrative and can change.

All enabled routes accept a JSON object of at most 60,000 UTF-8 bytes. String limits are also measured in UTF-8 bytes.

email-domain