Build a cleaner SPF record without guessing the syntax.

Choose the services allowed to send for your domain. Always validate the final record and keep the ten-DNS-lookup limit in mind.

FreeNo cardBuilt for diagnosis

Include mechanisms, one per linePolicy

v=spf1 …

Check it before you publish.

We'll verify this record against your actual sending stack before it goes live. A wrong SPF record stops your mail the moment it propagates, and you find out from customers. Reply within one business day.

Free. If the record is already correct we'll tell you that and leave it alone.

Do not publish DNS records or suppress customer data solely from an automated result. Validate changes against your actual sending stack.

What this tool can and cannot tell you

Useful for

Fast initial diagnosis
Finding obvious configuration or content risk
Preparing a more focused technical review

Not proof of inbox placement

Mailbox providers use private reputation signals
Results vary by message, audience and infrastructure
A real placement test requires a controlled send

Need the answer mailbox providers do not publish?

Run the full inbox placement test across Gmail and Outlook, then receive fixes ranked by impact.

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