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 lequipe.fr
Found
Selector: selector1
(TXT on selector1._domainkey.lequipe.fr)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDvmvHsB927PBPIsDCtVKLMSmc5nw8fb279JtUALUQ2plpSkpB6VWckTNfgLmiVUKnkqd+TmenBDWMWeIjDuBAGFRq+Xs6HcTNgrqOst1MX3zSZ0p4rG9CDEZ4BJmi77AQiXSd6mIrQePzf8cOpPpGkjjeLYnOp31171V9oRlge0QIDAQAB; n=1024,1456168002,1471892802
Selector: selector2
(TXT on selector2._domainkey.lequipe.fr)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoMXbS8RlWPRn2n0PhL9Fgo0evw0JCSKsQo/X37wm9Y4NZOZ11AKQIbUOUX8dF4g0mo6xQfCTHAAhUJd+ONca7SJ1tKz5ZOuozRt5n8ad7YJYjNU5TAGgj3rzaJyjuDp+o8UNwLRB0cvn1OMZq7O+CcQY9OMl7zloa2e+NBC3KpgZXWKVOcnYu4AKnWtNPxj6onZqq2gJZ+XAIPrrDfRZ+MwJ0r/MvyKu5ek1UiwzZgAwLQJn5qxpcYFbj6/DoxC5lFwhHM8tlu9tDjTJ5X4kq/r9Tf5xkTQUjIZvg6Ia4qjTcyIM9hEUWJ+W6HDp0AI65DAuJpk1p+OV6xnmPohf6QIDAQAB;
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.