Email Authentication Tools

Instant DNS diagnostics, syntax checkers, and record generators for DMARC, SPF, DKIM, and BIMI.

Inspect & Troubleshoot

Diagnostic Checkers

Verify live DNS configurations, public cryptographic keys, and email inbox deliverability.

Email Deliverability & Header Analyser

New

Paste raw email headers or send a test email to audit SPF/DKIM/DMARC alignment, TLS hops, and Google/Yahoo spam compliance.

Test Deliverability

DMARC Record Checker

Inspect your domain's live DMARC policy, reporting addresses, and Google/Yahoo bulk sender compliance.

Inspect DMARC

SPF Record Checker

Audit authorised sender IPs, include mechanisms, and check against the 10-DNS-lookup limit.

Inspect SPF

DKIM Key Validator

Verify your public cryptographic key, selector syntax, and 2048-bit encryption strength.

Verify DKIM

BIMI Record Checker

Validate your brand avatar record, verify DMARC prerequisites, and preview your inbox logo.

Check BIMI

MTA-STS & TLSRPT Checker

Audit strict transport security policies, check HTTPS certificate validity, and verify MX alignment.

Inspect MTA-STS
Create & Build

Record Generators & Builders

Construct syntax-error-free, RFC-compliant DNS TXT records and convert brand assets.

DMARC Generator Wizard

Generate a compliant DMARC record with custom policy, alignment, and reporting tags.

Build DMARC

SPF Record Generator

Combine Google Workspace, M365, SendGrid, Mailchimp, and custom servers under the 10-lookup limit.

Build SPF

BIMI Generator & SVG Fixer

Generate BIMI records and sanitise any brand SVG into strict BIMI SVG Tiny-PS compliance.

Generate BIMI

MTA-STS Policy Generator

Build RFC 8461 mta-sts.txt policy files, _mta-sts DNS TXT records, and companion TLSRPT reporting records.

Generate Policy

Continuous Automated DMARC Monitoring

DNS lookups show you where you stand today. DMARCify automatically aggregates daily XML reports, identifies unauthorised senders, and guides your domain to full enforcement with zero broken emails.