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DKIM validator

With this tool you can inspect and validate a DKIM DNS record. We'll test the record against all requirements from the DKIM standards RFC6376 and RFC8463

Just enter the location of your DKIM public key record below and press the inspect button.

A DKIM record is located at [selector]._domainkey.[your-domain].

Monitor the DKIM results

In the Mailhardener dashboard you can view and inspect the results of DKIM (and SPF) validation as reported by the receivers. Take a look at our demo to see what it looks like.

We'll also monitor all your DKIM and other email related DNS records, if anything changes you'll receive an email with the details of the change.

Try it now (it's free!)