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 basistrade.biz
Found
Selector: google
(TXT on google._domainkey.basistrade.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAigv1IQVnkM0iwp4bwY3wdptbLgjVWPTCkTaqeBeACRswQmzn+329Wc8BAPYP1hcKhrxSjcdcASRgPS+S1ae34Yxifk7YcRRNtiupfJ6TJNYJfz+YFD5/ktMqtwaAH3IFQadHAl5kRUaa8wDCEbAwmsf44DNnj7PR56gdHIhSQPzc9xnFOqHQBjUdtYRSWklDxx2u35Xgrlj/eBMcIDbojvxXqhO2RyrMm8Lt+V2v+3sboCDqAsfZYDmo8l4UaXic+yFb17up2KpbG4G2B5lbe5KDhjQTuH+nHc+N7Rzvwo8pPqaM2NNvG6bkRpo8rCqgvXsnEQwCLPD/hQ67YCwmLQIDAQAB
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.