Supernet Domain Health - Email Reputation Audit

Email Deliverability Auditor — SPF, DKIM, DMARC & Blacklist

fayoussef/email-deliverability-auditor

Audit any domain's email deliverability: SPF, DKIM, DMARC, MX, MTA-STS, BIMI, DNSSEC and DNS blacklist checks with a 0-100 score and prioritized fixes.

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

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 Security & Deliverability Analyzer — SPF DKIM DMARC

perryay/email-security-analyzer

Enterprise email domain security audit: SPF/DKIM/DMARC/BIMI/MTA-STS DNS validation, 50+ blacklist scans, MX record analysis with IP resolution, deliverability scoring (0-100), and detailed remediation advice.

🛡️ Audit MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI, CAA, DNSSEC, and web TLS without sending email. Get evidence-backed security and deliverability scores, prioritized fixes, and a client-ready report.

Audit email-security DNS for any list of domains: SPF, DKIM, DMARC, MX, DNSSEC, MTA-STS, TLS-RPT and BIMI. Deterministic scoring, actionable findings, no API keys.

Email Security Scanner

cerridwen/email-security-scanner

DNS-only email posture for any domain: MX, SPF, DMARC, DKIM probes, MTA-STS, BIMI. No email sent. Returns score + actionable tips. Batch-friendly for CRM domains and compliance snapshots.

Bulk Email Deliverability Checker — MX, SPF, DKIM, DMARC & BIMI

logiover/bulk-email-deliverability-checker

Check email deliverability for thousands of domains in bulk. Verifies MX records, parses SPF policies, discovers DKIM selectors, parses DMARC tags and checks BIMI. Returns a detailed deliverability score per domain. No API key — ideal for cold email campaigns and email marketing audits.

Domain Deliverability Checker SPF DKIM DMARC Blacklist Clay

mambalabs/domain-deliverability-checker

Audit a domain's email deliverability: SPF, DKIM, DMARC and policy, MX and mail provider, catch-all and blacklist checks, domain age, and a 0 to 100 health score. Flat JSON, Clay ready.

Supernet DNS Lookup

superlativetech/dns-lookup

Bulk DNS records lookup. Query MX, SPF, DMARC, DKIM, TXT, CNAME, A, AAAA, NS, SOA and reverse DNS for any domain or IP. Batch thousands or query one instantly using the Standby API. For email reputation scoring, see Supernet Domain Health. For whois, see Supernet Whois.