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 emails-checker.net
Found
Selector: default
(TXT on default._domainkey.emails-checker.net)
v=DKIM1; h=sha256; k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApRhGb/u/liUHqdPtUlRJvKHHFV6iF33nHx+HscLp0VGRHd8SbrwNjGyFnVSGpLX0llJ30UTl4wJjXBm9j83k79N2Vhy1TDp0eq4NklAm4t2voRX6GvVOKlJi2KTC6fcuWIsJCSmmwF99m+npXdiO/mVmoNz81GwfjV0kuxZjX+Go8iFaGqoIw3GBme35t79E+MWHKNGHVWIbim5w5ioq2dgl8XPMo9KsXsbUJ5FYVaC95T/Akr2cvzvTSoOnlY9hKBY/qbk5pxzvJjKom2gmxeL/8ggWfC+4Utr4yewJDLkwJIKTicekBpjElz8Iua1jHCeermzhhosHv2/IPPUD7QIDAQAB
Selector: google
(TXT on google._domainkey.emails-checker.net)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmNjbzWaeclVib6m33j/nTIivB7lVfTudDwSX+vZW+hV+KvXH//ZhKye3h6v+H4m0TL+qLSHAnU0LmT6bQKrMUZECvrZA5DyDTKiBemgqPJvLmh9h5RsyJm+ezjyfWX/dXxReXUx7qVE7O2Sm8Kil3OL89YJzjcO38yaI2HFPD08a+kyIXS5w75VFIps6QDpzeuynZ4BDBUiuFzdvPigxzoa++ZojPXt2Kk1z7BJXvOfqFhiER2N3suci3mFDgP0ywmGdmeLKYitHMKyppGNDv4acYLh/9NJc6ekEVY3kwwbEoM4pBtpCeFVkLDsLaOW6VKFN4uxPuVmL0v+MA0s6CwIDAQAB
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.