⚡ BlacklistMail Developer API

Integrate domain deliverability audits and DNS lookup capabilities directly into your SaaS or internal infrastructure.

GET /api/v1/health-score

Audit a domain's SPF, DMARC, and MX setup programmatically.

Request Example:

curl -X GET "https://blacklistmail.com/api/v1/health-score?domain=example.com"

JSON Response:

{
  "domain": "example.com",
  "score": 100,
  "checks": {
    "spf": true,
    "dmarc": true,
    "mx": true
  },
  "timestamp": "2026-08-22T14:40:00Z"
}

GET /api/v1/blacklist-check

Check an IP address or domain against 50+ major real-time DNSBL databases.

Request Example:

curl -X GET "https://blacklistmail.com/api/v1/blacklist-check?target=1.1.1.1"

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