Email Auth Checker

Verify SPF, DKIM, and DMARC DNS records for any domain instantly.

SPF DKIM DMARC No sign-up needed

Enter the domain you want to check (e.g. example.com).

What is this?

This tool checks the three DNS-based email authentication standards for a domain: SPF, DKIM, and DMARC. Together they protect against email spoofing and phishing.

Records explained

  • SPF
    Specifies which mail servers are authorised to send email on behalf of your domain.
  • DKIM
    Adds a cryptographic signature to outgoing mail so recipients can verify it wasn't altered.
  • DMARC
    Tells receiving servers what to do when SPF/DKIM checks fail, and where to send reports.

Status legend

  • PASS Record found and looks good
  • WARN Record exists but needs attention
  • FAIL Record missing or invalid
  • INFO Informational note

Querying DNS records…