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 danskespil.dk
Found
Selector: selector1
(TXT on selector1._domainkey.danskespil.dk)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLwCxJOALTfIY9OqQPjCB76YU+L9SOEcl2SRtj3wUHrh71vaPdQpVJNmXb8XetwhwdU898i43nPbIg3oH1NijM8v16SVnlp3YChXFTnqNBTBTIcdxaPeRuEHheFA+jReX0APWrgwnIrCW+B6g9pdptkSfVm1BNy/t7y4gElVZUwQIDAQAB; n=1024,1453255794,1468980594
Selector: selector2
(TXT on selector2._domainkey.danskespil.dk)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu/L7x631aO7ftawZ42HL/TMw5YDmNo8NFm/UxWF2IuQ5x09J0BteZcfXr1DPR88R5yqALUXqPJzMzEKNwKhpVvD9lAQdfvAIgrsDIQio7rJP/ZrzvMRD5OPERVrJ3BVcByt+nOsbMqepetsdMqVSTuYdGbrxw5MpwN6iAKKGrCtn4KHzsLRabbaAT/DNUbTR28hb4aR/X8irCWbhmFdFOCeGtlJCCL12+UTE9Zajb7DJz26k5A+xCvNauHR/YnX8qiCIejCcitovKOLvz4wffnzjyqlU1fHilqQ6pityoUqbThu7bf3KsRJ9zxmFc44CsEGlqMIsvPSO4m0jD8pqTQIDAQAB;
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.