Email Domain Authentication Checker (SPF, DKIM, DMARC)

Email Domain Blacklist Checker

trovevault/email-domain-blacklist-checker

Check any domain against 15 email blacklists (Spamhaus, SURBL, SpamCop, Barracuda and more) and validate SPF, DMARC and MX records. No API keys required. Export data, run via API, schedule and monitor runs, or integrate with other tools.

Check thousands of domains at once: available or registered, plus registrar, creation and expiry dates, days until expiry, and nameservers. Check a name across many TLDs, or find domains expiring soon. Uses official RDAP, the modern WHOIS. Free.

Check domain availability and fetch WHOIS records, DNS records, and SSL certificate details in one call. Supports bulk domain lists — useful for domain research, brand monitoring, and infrastructure audits.

Bulk Email Deliverability Checker - SPF, DKIM, DMARC, MX

codeblix/email-deliverability-checker

Audit thousands of domains for email authentication, DNS issues, and deliverability risk. Checks SPF, DKIM, DMARC, MX, DNSSEC, MTA-STS, TLS-RPT, BIMI. No login, no proxy, no API keys needed.

Email Checker/Verifier

mikolabs/email-checker-verifier

Verify the existence of any email address in real-time without ever sending a single message. This high-performance Apify Actor uses a specialized Rust engine to perform deep SMTP handshakes, MX record validation, and provider-specific checks (Gmail, Yahoo, Outlook) with extreme speed and accuracy.

Domain Age Checker

onescales/domain-age-checker

Bulk domain age lookup tool. Get registration date, expiration date, and domain history for hundreds of domains at once. Supports .com, .co.uk, .io, .ai, and 100+ TLDs.

Audit any domain's email authentication (MX, SPF, DMARC, BIMI, DKIM) and get a deliverability score with actionable issues.

Bulk-check domains for email setup & authentication over DNS: MX + provider, SPF, DMARC policy, DKIM selectors, with a deliverability score. One JSON row per domain.

Audit a domain's SPF, DMARC, and DKIM email authentication DNS records for deliverability and security readiness.

Email & Domain Auth Checker: MX, SPF, DKIM & DMARC

apifmcpfactory/email-domain-checker

Checks an email or domain's deliverability signals from DNS alone: MX, SPF, DKIM, DMARC, plus disposable and role-address flags. No SMTP, no mailbox ping. It reports auth-record posture, not mailbox existence. $0.005 per input checked.