Free DMARC Record Checker
Parse a DMARC record tag-by-tag, flag misconfigurations (missing policy, missing reporting, low pct), and tell you what each tag actually does.
How it works
Enter a domain
We query the _dmarc subdomain for TXT records — that's where DMARC lives by spec.
Parse each tag
p, sp, pct, rua, ruf, adkim, aspf, fo, ri — annotated so you remember what each does.
Catch the gotchas
Missing 'p=', stuck at 'p=none', no rua, mixed sp/p — all surfaced.
Frequently asked questions
Where should I start with DMARC?+
Publish p=none with a rua= report mailbox, monitor for a few weeks, then move to p=quarantine and finally p=reject. Skipping p=none risks breaking legitimate mail flows you didn't know about.
Why is pct=100 the right default?+
pct controls how much of failing mail the policy applies to. Lower values are useful during rollout to limit impact. Once you trust the data, pct=100 is correct.
Does DMARC require SPF and DKIM?+
DMARC needs at least one to pass — and the passing record must align with the From: domain. Most real deployments use both for redundancy.
What does 'alignment' mean?+
Alignment is whether the domain that authenticated (via SPF or DKIM) matches the From: header domain. Strict means exact match, relaxed allows subdomains. Most senders use relaxed.
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