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 ticketmaster.com
Found
Selector: selector1
(TXT on selector1._domainkey.ticketmaster.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsbzghmtn3vObFW2T7FlXVnp+INNY9AO9snIEsIBYELt0esmOeW4ErLFPOMbdqa5nGZ/ybi/Wz1BnDvggyogqYi59R2ZQ+Xm4tL9U+y7H2KT1p0+KyHXLjVkTNm0Gve4wgqsdlKjLLjZ9dWy7Yk5vkswIKr0lMC4peuD9rgEQptRz9fKkOi1PRW8vVBsWdkNcEbQFdLUEnyjWiJwSl21nA2xFVw0ndo+4CsdgKhnJInpjckSt+fgdaoJgu67Yg70HymNU4lIdlBfu2yudRzptifN8r/YqSYazRWPGV8itXy2w62IXeZyDtkHlW9y+/eALHHxePRMfM3fv+Gagu8uicQIDAQAB;
Selector: mail
(TXT on mail._domainkey.ticketmaster.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxpwwljCi0A2gLEWHCKTlACn0hqH4rH3JQUq9Ylvt5v1cxwXh8yjc9P7h3WeRMa+eyWgSabNlIHoRnMSHkii2SW+aK8HbLPSyVZav2MWakPqxDgfpSajQgkKvza2Oo8yNBQFSQc62q5sfV+11USJ97JP87W3ePp9lMxmtblUEEowIDAQAB
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.