Free Email Deliverability Tools

Check your SPF, DKIM, DMARC, DNS and email copy before every campaign. All tools are free, need no signup and run in your browser.

Cold email lands in the inbox when the technical setup is right and the copy looks human. These are the same checks our team runs before every campaign. Start with the Domain Scanner for a one-page health report, then open the specific tool it points to.

Check

Email copy spam checkerFind spam trigger words before you send Domain scannerFull health report for a sending domain SPF checkerValidate your SPF record DKIM record checkerConfirm your DKIM signature is published DMARC checkerRead and grade any DMARC policy

Create and fix

SPF record generatorBuild a correct SPF record in seconds DKIM record generatorGenerate a DKIM key pair and record DMARC record generatorPick a policy and copy the record Anti-spam email fixerClean spammy words out of your copy

Look up

DNS lookupSee every DNS record for a domain MX lookupWhich mail servers a domain uses

Plan

Cold email calculatorDomains, mailboxes and monthly cost

FAQ

Deliverability tools questions

Are the deliverability tools free?

Yes. All tools are free to use with no signup. They run in your browser and read public DNS records where needed.

Which tool should I start with?

Run the Domain Scanner first. It checks MX, SPF, DKIM, DMARC and DNS in one scan and tells you which specific tool to open next.

Do these tools replace a deliverability audit?

They cover the technical setup. A full audit also looks at domain reputation, list quality, sending patterns and copy, which is what our Free Deliverability Audit covers.

Is my data stored?

No. Domains you enter are sent to Google Public DNS to read public records, and text you paste into the copy tools stays in your browser.