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Check if Internet $2.00 / 1,000 calls

Check a domain's DMARC policy (DNS _dmarc TXT record).

What this tool does

Queries the _dmarc.{domain} TXT record and parses DMARC policy fields: version, policy (none/quarantine/reject), subdomain policy (sp), percentage (pct), DKIM alignment (adkim), SPF alignment (aspf), reporting URIs (rua/ruf). No credentials required.

Input data

Parameter Required Example Description
domain Yes google.com Domain to check.

Output data

Field Description
version DMARC version (normally `DMARC1`).
policy Policy for the domain: `none`, `quarantine` or `reject`.
sp Policy for subdomains when present.
pct Percentage of messages the policy applies to.
adkim DKIM alignment mode (`r` relaxed or `s` strict).
aspf SPF alignment mode (`r` relaxed or `s` strict).
rua Aggregate report URIs.
ruf Forensic report URIs.
raw Raw DMARC record.
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