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 eduesportsexpo.com
Found
Selector: default
(TXT on default._domainkey.eduesportsexpo.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAueAp1u+ow8EVXK/p6ViGprbHVRLIxu00wDNwvtUXNAb3519wXd6RgNyHdkQ+fhspGLBUzhL8I1hUbD5vlS+gFpJuwNIrPS5+PBg4MK9ecuC9StDIoxe7dkgwRjXCfQcHKca78O9rhEcYD36k/3pRLF4I8w47Ehy8zNkEWrlVp08/wFRXzNOf+CTkVQDxKcmzErHj14j7jpFnRqcksWHRWPJkU5KzwVgUDdTjQfpHyG/wZBVbD52iF0WCsejsTWkwFgxRjsvIahKcd5/TYELUhzf09qPKZ9fJg+ogwMxrbU6z7WFW7OA+BnZRNtFK//PTzC+M2ZrtfQK4C4t99lcBvQIDAQAB;
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.