Email Deliverability Suite
by Info Inlet Inc.
Protect your sender reputation with one API: validate email addresses one at a time or in bulk, va.
Email Deliverability Suite — Protect your sender reputation with one API: validate email addresses one at a time or in bulk, validate sending domains, check links for safety, and classify recipient IPs.
📧 Rules + lookups
🚀 Newcomer launch pricing — limited-time introductory rates while we earn our first reviews.
Built for email marketers, deliverability and growth teams, ESP and CRM developers.
Why this exists
Bad addresses and risky domains tank deliverability, and list hygiene tools are separate from link-safety and IP-reputation tools.
What you get
One API key validates addresses and domains in bulk, checks links, and classifies IPs — the deliverability toolkit.
Endpoints (5 total)
- POST /v1/email/verify
- POST /v1/email/verify-batch
- POST /v1/domain/validate
- POST /v1/url/check
- POST /v1/ip/classify
Sample request
curl -X POST https://api-deliverability-suite.knowlez.com/v1/email/verify -H "X-API-Key: <your-key>" -H "Content-Type: application/json" -d '{}'
Pricing
- Starter — $9/mo · 5,000 ops included · $0.003/op overage
- Pro — $29/mo · 50,000 ops included · $0.002/op overage
- Scale — $99/mo · 500,000 ops included · $0.0008/op overage
Swagger / OpenAPI: api-deliverability-suite.knowlez.com/docs