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 durbinfarms.info
Found
Selector: default
(TXT on default._domainkey.durbinfarms.info)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqtg9/aK/FPpGar7Pk0yY+hGkLgoEHuc37CE/s+0C3PaMeg5EEd2q60qP3M/dmIAaH+2XNE5pJ6Rt7WuuOFbjcW4hFygHkQyofze8zpy52Gy2K+s7pGlcc33dagiFWt6a75NsrcBTyvchWCLAHdE8o6GXvu8dyDuKeht70lnSRVZ75ZcYRWMhVYH6FEcCQmoGlGkHi7Q+MRsfNx6gKzLfiiRfDUFxRHgVMg7+UvMZAARDI7PfmOv6GqI6rEdrG4ZXZNsmsvuN3/P/6O45WpSvhQfFlt8Xz0OWUAhV7b5sad/TON3wfFb1Vs7Wmb/db9gHPVZQSP+kXuJAx8hfgjUn4QIDAQAB;
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.