SPF, DKIM & DMARC Checker – Free Email Auth Tool

Verify your domain's email authentication records. We check DNS for SPF (sender policy), DKIM (signing), and DMARC (policy and reporting) so you can fix misconfigurations and improve deliverability. Read the guide.

🔒 Privacy guaranteed. We never store your lookups.

Advanced DKIM options (optional)

DKIM selector(s) or full host(s)

Comma-separated. Use this when your provider uses custom selectors (e.g. Amazon SES).

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