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 acburger.com
Found
Selector: selector1
(TXT on selector1._domainkey.acburger.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu41LDq9B9x8E8zuCvp2+o9DjB2P2DUCtewTz+KCV7YtS3TLZ/Xof9zmZY3dgiLRajhYu64yku+f/e799XDm12XfU3Ls66tXVaeSaj3dLar6/rvvp8Z2fHe2q9mUpxKSBG8dbgOx7xExaiW9Pqv9Vyf6fR15B3Wd8h9K2Xvja84Gi8fY3TR6J+oKXC2OK2x5cWOjnFdn179MeG5Td5YzsVUndJTPGwv5hs034b5KRXyiAtCiCnW7B6k/S6s6Lb6lZ3mjjIuvjNGb4i9LXk9FBgmQFG16dgaE3QeUwMPMwJ8b7O+sFwxY70t9VjmlHlPi05ljjrWkMUfng0slrRi6emQIDAQAB;
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.