JSNH MX Record & SMTP Checker
## What this does Probe a domain email infrastructure: MX records, SMTP server response (RCPT TO check), catch-all detection, and identification of common providers (Gmail, Outlook, Zoho, etc.). ## Use cases - **Pre-send validation**: Reduce bounce rate before transactional sends. - **Lead enrichment**: Identify mail provider for B2B segmentation. - **Catch-all detection**: Flag domains that…
JSNH MX Record & SMTP Checker endpoints
| Method | Endpoint | Description |
|---|---|---|
| DNS/Network | ||
| POST |
mx_checker /api/v1/mx-checker |
**Category:** DNS/Network | **Token cost:** 2 tokens per call Check MX records and identify email providers for any domain. |
JSNH MX Record & SMTP Checker pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | — |
|
| PRO Recommended | $9 / month | — |
|
| ULTRA | $29 / month | — |
|
| MEGA | $79 / month | — |
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