DKIM Record Checker
DKIM signs outgoing emails. Receivers verify the signature using a public key in DNS.
DKIM lives on <selector>._domainkey.<domain>. If selector is empty, we try common ones.
Result for solidtrader.biz
Found
Selector: default
(TXT on default._domainkey.solidtrader.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3CPXsFYQRUOTQJEXQIos8tlmxE/jxcsehPSw9k1dtBX/OI3az0V9V1Wrfl1rr/zr4dUxQa/tnN5aV1/TxI05v1RiuSgI0nOk5Vl6RglHq5i0sf01P0a764L6+ZrcBDzCFLEJUbcD2RmdAYmjdt2GwnXlyPNC+brjMWl4jck8cUSb7AcIiZowrTHdWq6no2DQPl5qU9YQEXk08PKALDhlJ2tehd8ZfBKYzHtZmDPu10DIQUlhdQ6aKk7i4MTzUNMwFaQcsqhKqnYZh0q35gxQqNT2B7u4QibsONZjnF5vBDc9rw/gKdq1fIQy7e5Wu6VOhpbay2ZXunq6S/CBHqOb5QIDAQAB;
FAQ
Why does DKIM require a selector?
Selectors allow rotating keys and running multiple keys per domain.
Where is DKIM published?
TXT on <selector>._domainkey.<domain>.
DKIM record exists but emails still fail DKIM?
Signing may be disabled or the selector used in email differs from DNS.
Do I need DKIM if I have SPF?
Yes, many providers use both for best deliverability and DMARC alignment.
Can I have multiple DKIM selectors?
Yes, that is common for key rotation or multiple senders.
What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails. DNS stores a public key that allows receivers to verify authenticity.
Example
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0B...
Common mistakes
- Wrong selector (the record exists but under a different selector).
- Key is split incorrectly across multiple TXT chunks (some DNS UIs break it).
- Publishing DKIM but not enabling signing on the mail provider.