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

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.

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 Deliverability Checker - SPF, DMARC, DKIM Bulk

renzomacar/domain-health-enricher

Bulk email deliverability checker and domain enricher: MX + provider, SPF, DMARC + policy, DKIM, domain age (RDAP), HTTPS, plus a 0-100 email-security score and deliverability risk. Score prospect domains before cold outreach - not just your own - to protect sender reputation. No API key.

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.

Bulk email authentication audit. Parses SPF, DMARC, and DKIM records, returns deliverability score (0-100), and step-by-step remediation actions per domain.

Bulk Email Health: SPF, DMARC, DKIM & MX Checker

cottony_brittlegill/domain-mailhealth-bulk

Bulk email deliverability and security audit: MX, SPF, DMARC and DKIM (common selectors) for up to 100,000 domains in one normalized JSON per domain, with an A-F grade and actionable issues. Failed lookups are never charged.

MX Lookup — Email DNS, SPF, DKIM & DMARC

junipr/mx-lookup

Check MX, SPF, DKIM, DMARC, TXT, CAA, and email DNS records in bulk with validation findings and deliverability diagnostics.

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

Validate email deliverability and get domain intelligence: MX records, WHOIS, SPF, DKIM, DMARC, blacklist status, disposable detection and SSL info. Bulk email list cleaning for cold email and lead gen. No API key required. Try free — no API key, instant results.