Bulk DMARC Record Checker

SPF DMARC Checker - Email Authentication Data

benthepythondev/spf-dmarc-checker

Check SPF and DMARC DNS records for domains and export email authentication policies, rua/ruf reports and raw TXT records.

DMARC Checker

onescales/dmarc-checker

Simple DMARC record lookup tool. Check email security configuration for multiple domains in a single run.

DMARC & Email Security Checker

taroyamada/dns-dmarc-security-checker

Validate domain infrastructure in bulk to boost email deliverability. Extract DMARC policies, SPF records, and MX configurations to keep outreach out of spam.

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.

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

Run an email authentication check on up to 100 domains at once. Reads public DNS for DMARC, SPF, MX and the DKIM selectors you name, parses the p, sp and RFC 9989 np policies, and returns a 0-100 score per domain with the raw records and the anti-spoofing fixes to apply first.

SPF, DKIM & DMARC Checker

gifted_wagon/dns-email-auth-auditor

Audit MX, SPF, DMARC, and optional DKIM selectors with normalized DNS evidence and actionable findings.

DMARC Report Inbox Parser

junipr/dmarc-report-inbox-parser

Parse DMARC aggregate XML/ZIP reports into clean rows, source summaries, alignment failures, and executive deliverability posture briefs.

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 — 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.