What the specs actually say, what receivers actually do, and what that means for your domain.
A candid map of the DMARC software market: free visibility tools, report analyzers, authentication platforms, enterprise programs, deliverability suites, and open source — and how to tell which one you actually need.
Read the postRFC 9989 formally warns general-purpose domains off p=reject — and prescribes a monitoring-first ramp instead. Who it applies to and how to climb it.
Read the postRFC 9989 removed pct because receivers never reliably implemented it. What replaced it (t=y), why pct=0 mattered, and the 30-second fix for each value.
Read the postDMARC is finally a real IETF standard. What the new RFCs change — pct removed, the np tag, the DNS Tree Walk — and the five-minute checklist for your own record.
Read the post