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Check email settings across your domains.

Paste a client list. Get SPF findings, potential lookup counts and DMARC policies in one exportable table.

Up to 50 unique public domains. Use a new line, space or comma between names. Duplicates are removed.

Queries public DNS through Google Public DNS. The DNS service receives the queried names and your IP address. Nothing is changed or saved by this tool. How your data is handled.

Example: reviewing a client domain list

Illustrative results. These domains have not been checked.

DomainSPF findingLookup stepsDMARC finding
client-a.exampleNo issues found in this check3Monitoring
client-b.exampleMore than one SPF recordPartialRejection requested

The second domain needs its SPF records reviewed. A rejection policy does not establish that legitimate mail passes DMARC. Open each finding for its evidence and next step.

What this audit covers

The SPF check inspects records and linked policies within bounded query limits. Counts describe potential lookup steps, not the path taken by every sender. DMARC includes parent-policy discovery; inherited results are labelled. A failed DNS request remains an incomplete check.

DKIM needs a selector from an email or provider setup guide, so it is checked separately. No DNS result proves inbox placement or that every sending service is configured correctly.

How to audit client SPF records · Understand SPF lookup limits · Check a DKIM selector