DMARCFlow

DMARCFlow helps you find out who is sending email in your name and whether your domain is protected against spoofing and phishing. Run free DNS checks in a few taps, understand the results without being an email expert, and monitor every domain you own from one place.

FREE CHECKER TOOLS, NO ACCOUNT REQUIRED
- DMARC Checker: validate your DMARC policy, alignment mode, subdomain policy and reporting setup
- SPF Checker: inspect your SPF record and DNS lookup count before you hit the limit
- DKIM Checker: verify that your DKIM signing key for a selector is published and valid
- BIMI Checker: check whether your brand indicator is set up correctly
Every check comes back as a clear list of issues and warnings, a risk level and a plain-language explanation of what each finding means and what to fix.

GET A DETAILED PDF REPORT
Enter your email address and we send you a PDF with detailed findings and recommendations for your domain. No spam, no account required.

MONITOR ALL YOUR DOMAINS (DMARCFLOW ACCOUNT)
Sign in with your DMARCFlow account to go beyond one-off checks:
- Live compliance dashboard across all monitored domains: compliance rate, pass rate, DMARC and policy coverage
- Detailed DMARC reports showing who sends as you, from which IP addresses and with what result
- Filter reports by date range, SPF or DKIM failures and search by domain, organisation or report ID
- Per-record breakdown of SPF and DKIM results with an explanation of what happened and why
- Geographic map of your email sources
- Alerts on spoofing attempts and misconfigurations

WHY DMARC MATTERS
Without DMARC, SPF and DKIM, anyone can send email that looks like it comes from your domain. Properly configured authentication stops spoofing, improves deliverability and builds trust with every email you send. DMARCFlow shows you exactly where you stand and what to do next.

YOUR DATA STAYS YOURS
Analytics and error reporting are optional and off until you turn them on. You can change your choice at any time in Settings, and turning it off stops collection immediately.

Also included:
- Full dark mode support
- Available in English and German

The checker tools are free. Domain monitoring, dashboards and reports require a DMARCFlow account. See plans and pricing at dmarcflow.com.