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 immediateconnect.biz

Found
Selector: default (TXT on default._domainkey.immediateconnect.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1z9et7cI9lXHO03+KQzrnHTLH8f+P+yHTqA3g8XdmqL8MDoCcWb+BMExOzc16Sl5koVieYGmvfo7sFXxWOnPTg2s2/klqEJd2ibF7LQrXhHizCLcC2x9rWZFUBcDr/IFb8CkfAsie+IGv600Ccg1OIbJojt7B3tE1aGsBkUOi0ArKPgqfv6czxQT3L3ewVmQSFxVUeeoXnkVxgeQByT9Fxc7xUa7oRRn7ie8BzJfG10+kqLZ/OyxKL2RCVseejjot+n76SSwCcLRP4vpRUPb3FLVgHEX6sDiozko2K89lfHvmjEsefghFcTvOlem53NrrKgL0IOd07OTM4S6Y9/pQwIDAQAB;

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.