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 vegas.hu
Found
Selector: selector1
(TXT on selector1._domainkey.vegas.hu)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv9w85III6VCDATrsVEe55DDVN6jqgPBmUEj3712nvi41YM1Aj2TmJkhMSin6Wqf2nuqAwqtaG/j94YDxMM0Uhrtxy3JSOh5Cm/srJFIq+w9XmzkIhR9i12/CbwEiGd8pg0CeGbgcTntTFwcoh45oswYH33h5QsuHyRDUs4dSZw8Q6GsSMfbClL4pWiLhOeOwjCYdD6MljIEoa5bLn2eFVfz6xlvVEilX7b9nk+FxRQTaHrM8km6ByHX5tdWPi8nQGO4Ab8aVaovvV4TElV7o7PjCQqLaCCmpusXAO6MZfVG8tXMJnvJkhvXKUDpTHxmnXtQAFnyHoh5RdJyHb1bUwQIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.vegas.hu)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlKvYczjXFTl/029hPjjhMXsOAQn0uO6a+4QvDR5nMShxWrqU/n2109rdvkB5Ij5v3ZQpfU/Y0fkzggMgqj4ti018lXn0VEK+6DYHTCVx9tiuQXnyNB1C0xOwHVXiTIMF+rIAxIUkEwiwXY07iSIcBK+p92uSjiDE//x/XFKvRKNsB/iD3MV36+AI21hcpj9uiMeaFYr1HMOLu58VJFOVJi12ipPpaI0a/kcgs4Unyg7McJFMzeQKXCxPKn+W868bmoIBJ6/LoxLqJKrpO+MV9daEa+efiQyEB3lUlUirOkLwqx6kjHahuPpjZOBo2mxIQ5dtkOkfTwyAhEeoJZm04QIDAQAB;
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.