This free checker tells you if your sending domain is ready for outreach.

Enter a domain. We look up MX, SPF, DMARC and common DKIM records live.

Quick rule-based checks, run in your browser. The MailDignity API reads full context with AI and writes rewrites.

A respectful email still needs a domain that can be trusted.

Gmail and Yahoo require SPF, DKIM and DMARC for bulk senders. Missing records send good emails to spam.

Check secondary outreach domains before warming them up.

Frequently asked questions.

Why is DKIM "not found"?

DNS has no way to list DKIM selectors, so we try the ones major providers use. If yours is custom, enter it in the selector field (it appears in the DKIM-Signature header as s=).

What DMARC policy should I use?

Start with p=none and reporting, then move to quarantine.

Do I need MX on an outreach domain?

Yes, if you want replies to arrive.

Is this free?

Yes, no account needed.

Check every email before it sends.

Same standard, with AI context and rewrites. One API call from Clay, Make, n8n or Zapier.

Explore the API

More free tools.