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 joycasino.bet
Found
Selector: default
(TXT on default._domainkey.joycasino.bet)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAngdxLaOnsLv9cGCwvYKvWNtAp/Ptd5TdJL/sEBvwalcelseFa8Q72J2LdA8FQkhuCPgfviGMCRHYq0fRMTj1rEdhaZvhG7+qs2nDG5z3Sn2D7NiKUZkDc2mf4FEHDdw16D2p97sy7m9fQ+B+ynW92wsUuS7RYP4R0pR3nLztxSV92jg4CPcyg6yV4G7wKagCeMlb50cJ6PMiEzKG9TthXVhg4Vj37Zu6S//7x2DF6OFnGv3Ndumz+4R8nF2iXnhxK4FDOmUaL/vfCoYbt0RS49QV55IQneF+BCTrzO9dM1pIyDWLTTIoS4d1GxvEi0ni0QHxAeLIomMffCaYAzQLnwIDAQAB;
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.