# MailSenpai Email DNS Check
> Free SPF, DKIM, DMARC and MX checks with a public domain-only JSON API.
- URL: https://en.mailsenpai.com/email-dns-checker/
- Visit (tracked): https://promoteindex.com/go/mailsenpai-email-dns-check
- Category: dev-tool
- Built with: unspecified
- Pricing: free
- Votes: 0
- Tested by PromoteIndex: no. Not tested by PromoteIndex yet. Use at your own risk.
- Listed: 2026-10-24
- Tags: email, dns, spf, dkim, dmarc, api
Check the published SPF, DKIM, DMARC and MX records of a domain. The public DNS diagnostics API accepts domain input, with 30 requests per hour per source IP and a 15-minute cache. This tool does not send messages and a DNS result does not guarantee inbox delivery. Setup and limits: https://en.mailsenpai.com/dns-check-api/ .
Listing: https://promoteindex.com/p/mailsenpai-email-dns-check

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