Yazan RajabiAGENCY
FREN

Free tool · email

Free SPF, DKIM, and DMARC checker.

Enter your domain and see in seconds whether your email is protected against spoofing and likely to reach the inbox.

Understand SPF, DKIM, and DMARC

Your browser asks Google Public DNS directly for the domain’s public records. Nothing is sent to this site and nothing is stored.

What the tool checks

  • MX: which service receives your email (Microsoft 365, Google Workspace, or another).
  • SPF: exactly one record, ending in ~all or -all, under the limit of 10 DNS lookups.
  • DKIM: the signature, at the most common selector names (selector1, selector2, google, default, k1, and a few others).
  • DMARC: presence, policy (none, quarantine, or reject), and reporting address.

The tool reads public DNS records only. It cannot see your messages, and a DKIM “not found” is not proof that none exists. For what to do next, see the SPF, DKIM, and DMARC guide and the Microsoft 365 email guide.

Need a hand?

A red or yellow result?

Send me your domain. I will tell you what to fix and in what order.

Describe my problem