Free tool

DMARC & SPF record explainer

Paste any DMARC or SPF record (or fetch it from a domain) and get a clear, tag-by-tag explanation of what every part does — and which parts to worry about.

Why this helps

Records like v=DMARC1; p=none; rua=... or v=spf1 include:... -all are dense. This tool decodes each tag and mechanism in plain English and flags the weak spots — p=none, +all, neutral qualifiers — so you know exactly what to fix. Then build a stronger one with the DMARC generator or run a full domain check.