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 leovegas.com

Found
Selector: google (TXT on google._domainkey.leovegas.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApoR+/2ULHkX25d61dZk0SJJwet8TOU1KqFs/KGDsn7GFlqZ7uZezNa3Q97pSNFszVvqRpR7KWiGQpwDoMe1u9a+1AES3X+WWwwJgirVzoqbzB3krLG48kb03/xbD9VI/fqn9I2PO9WPnwwFuWoC06veGDkF8VxefLedTQ5GC8G20+SVS7cPh3zsaO8NMWoaMe2/+/2Mw5EMwahGD1q+muOMK958KCxyEhl/Y06jS+1dgmC7TAUWCSMTKaEdz1EfTPdZwcCttrj61GGUG1YJ6eu0pwbRhLsRcQ+v8L/b+qfya5x5EYdG0klOY/AxNKdKOulrteHGTd75h2gZjDFCj7wIDAQAB 

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.